CrossFire / SLI still just gimmicks

hat · Aug 9, 2009

While I disagree that Xfire/SLI is a gimmick, as it DOES improve performance, I prefer single card solutions myself. Xfire/SLI usually takes a beefy power supply and a lot goes in to using it properly, as in making sure you don't get a board that runs at come crap speed like 16x/4x or 8x/4x. 8x/8x is fine as long as they're both 2.0. There are other factors too... Usually the boost comes in when godly amounts of AA/AF are used. Some people want 16aa/16af... natrually, running 2 cards instead of 1 will being a huge performance boost in this situation. Also, Xfire/SLI sees the best gains with midrange cards. Lets say the limit here is 80, and with one midrange card you get 35 and with one high end card you get 55. Natrually, 2x35 will bring a much bigger performance gain than 2x55 when the ceiling is at 80.

Nick89 · Aug 9, 2009

newtekie1 said:
Farcry 2

Crysis Note: the HD4770's outperform the HD4890 at the higher resolution, and AA kills the HD4770's due to having less memory available.

Left 4 Dead Again, higher resolutions show the HD4770's winning

Stalker The HD4770's only fall behind at the highest resolution with AA, again due to the limitted amount of RAM.

World in Conflict Again, HD4770s better at highest resolution/s.

Grand Theft Auto IV One of the few times I've seen the HD4770's lose by a huge margin. This is for a couple reasons: GTA:IV is one of the few modern games that actually doesn't support Crossfire properly(and doesn't support SLi at all), and it also quickly uses up VRAM, which puts the HD4770's with less memory at a sever disadvantage.

Most modern games support Crossfire and SLi, your claim that 80% don't is totally wrong. The only modern game that really doesn't support Crossfire/SLi is GTA:IV. I have really yet to see a modern game that hasn't seen a noteable improvement in performance when a second card is added.

Now, as for high end graphics cards, they really don't show an improvement in actual gameplay unless you are running extreme resolutions. A single HD4890 or GTX275 would be enough, adding a second wouldn't really be benefitial except for rasing benchmark scores. You should be seeing a jump in FPS, if you are using a FPS counter, but the difference shouldn't be actually noticeable to gameplay. You might go from 60FPS to 100FPS, you won't notice that unless you use a FPS counter.

However, having a single high end card now leaves a good upgrade path for later on down the road, which is where SLi and Crossfire with high end cards makes sense to me. I've used SLi as an upgrade path the last few generations. When the 8800 series came out, I just slapped another 7900GT in my system to keep up, and it was good enough for the latest games. Then when the GTX200 series came out I just slapped another 9800GTX in my system to keep up, and it worked to play the latest games for a good while.

I dont really play any of those games you listed except GTA4. what i've been playing right now is DOW2 and Arma2 both of which have no improvment with my second card. And I really should refrase that 80% of my games dont support Xfire.

hat said:
While I disagree that Xfire/SLI is a gimmick, as it DOES improve performance, I prefer single card solutions myself. Xfire/SLI usually takes a beefy power supply and a lot goes in to using it properly, as in making sure you don't get a board that runs at come crap speed like 16x/4x or 8x/4x. 8x/8x is fine as long as they're both 2.0. There are other factors too... Usually the boost comes in when godly amounts of AA/AF are used. Some people want 16aa/16af... natrually, running 2 cards instead of 1 will being a huge performance boost in this situation. Also, Xfire/SLI sees the best gains with midrange cards. Lets say the limit here is 80, and with one midrange card you get 35 and with one high end card you get 55. Natrually, 2x35 will bring a much bigger performance gain than 2x55 when the ceiling is at 80.

Unfortunately my mobo only supports (8x 2.0/8x 1.1) I think this is why I seem to be having such crappy Xfire performance.

newtekie1 · Aug 9, 2009

Nick89 said:
I dont really play any of those games you listed except GTA4. what i've been playing right now is DOW2 and Arma2 both of which have no improvment with my second card. And I really should refrase that 80% of my games dont support Xfire.

You asked for proof, I showed you proof. There are a reason those games aren't really used in benchmarks...they don't stress the graphics. :laugh:

No wonder you don't see a performance gain, a single HD4870 already owns both those games at max settings...

And I agree with Mussel's 100%, your CPU will hold your graphics cards back. You need well over 4GHz to to see a benefit from Crossfire, actually even higher with a Phenom II since it is about 600MHz behind the Intel quads clock for clock...

goldfries · Aug 9, 2009

angelkiller said:
And the 4830 is significantly faster than the 4670 so the list should go like this....

4890
4870
4850
4770
4830
4670

From my experience that's how it goes. HD4830 very close with HD4770. slightly behind on stock. slightly ahead on OC versions.

Nick89 said:
(very simplified version of what I was trying to say) WHY would someone get two 4670's/4770's when they can get a single 4850/4890.

you seem to be asking what stuff that people have already given you the answers earlier.

Refer to Mussels' earlier post. Sometimes people already have a board with dual-card support and a single card already, so when $$$ permits they just add another.

Nick89 said:
MY main problem with my system is the lack of performance increase which could be attributed to my Mobo's poor PCI Express bus for my Xfire setup( x8 2.0 / x8 1.1).

I'm using an E7200 @ 3.6ghz on a P45 (x8 / x8 Crossfire) board and I still get nice CF boost.

Nick89 said:
Maby two 4770's beat one 4890 in synthetic benchmarks but I dought it with most real games. Please show me proof. Most games dont even utilize SLI/Crossfire.

dude, I don't know whether you're actually reading.

I've given you the link on my post in Page #1 where I tested in GAMES - World In Conflict, Company Of Heroes : Opposing Fronts, Lost Planet : Extreme Condition, Crysis and H.A.W.X. - they're not synthetic benchmarks!

newtekie1 has given you additional supportive info.

trt740 · Aug 9, 2009

newtekie1 said:
You asked for proof, I showed you proof. There are a reason those games aren't really used in benchmarks...they don't stress the graphics. No wonder you don't see a performance gain, a single HD4870 already owns both those games at max settings...

And I agree with Mussel's 100%, your CPU will hold your graphics cards back. You need well over 4GHz to to see a benefit from Crossfire, actually even higher with a Phenom II since it is about 600MHz behind the Intel quads clock for clock...

If you play games like world in conflict or supreme commander you will see a big difference using two high end cards.

Most Crossfire or SLI setups seem to see a marked performance increase with a I7 at 3.4ghz to 3.6ghz. So with a Phenom IIx4 at 3.8ghz you will not bottle neck even 2x 285 gtx in sli. Heck My I7 set to 3.2 ghz will give me 80 FPS with my 295 gtx and in the same games with my old 285gtx I was luck sometimes to break 40 FPS. I've done some playing around and I see the biggest jump in performance starting at 3.4ghz. His 940 should do at least 3.8ghz, overclock it a bit more.

Nick89 · Aug 9, 2009

Can I have someone confirm that my mobo is what might be limiting my performance? the reason I'm asking is because The PCIe lanes only run@ 8x 2.0 and 8x 1.1 with crossfire. My first card is in the PCIe 2.0 slot and my second card is in the PCIe 1.1 slot.

When I originally bought this mobo it was advertised as having two PCIe 2.0 slots but the second slot is in fact PCIe 1.1.

You guys keep saying my it my processor, but theres nothing I can do about that. I can afford 180$ for a new mobo however. I've been wanting to get a new MB for awhile now the BIOs in this FOXCONN are complete and utter garbage.

trt740 · Aug 9, 2009

Nick89 said:
Can I have someone confirm that my mobo is what might be limiting my performance? the reason I'm asking is because The PCIe lanes only run@ 8x 2.0 and 8x 1.1 with crossfire. My first card is in the PCIe 2.0 slot and my second card is in the PCIe 1.1 slot.

When I originally bought this mobo it was advertised as having two PCIe 2.0 slots but the second slot is in fact PCIe 1.1.

You guys keep saying my it my processor, but theres nothing I can do about that. I can afford 180$ for a new mobo however.

the specs say I think your wrong the second blue slot is 2.0 x16

Model
Brand Foxconn
Model A7DA-S
Supported CPU
CPU Socket Type AM2+/AM2
CPU Type Phenom FX / Phenom / Athlon 64 FX / Athlon 64 X2
FSB 2600MHz Hyper Transport (5200 MT/s)
Chipsets
North Bridge AMD 790GX
South Bridge AMD SB750
Memory
Number of Memory Slots 4×240pin
Memory Standard DDR2 1066/800
* 1066MHz memory frequency with AM2+ processors only
Maximum Memory Supported 8GB
Channel Supported Dual Channel
Expansion Slots
PCI Express 2.0 x16 2
PCI Express x1 2
PCI Slots 2
Storage Devices
PATA 1 x ATA100 2 Dev. Max
SATA 3Gb/s 6
SATA RAID 0/1/0+1/5
Onboard Video
Onboard Video Chipset ATI Radeon HD 3300
Onboard Audio
Audio Chipset Realtek ALC888GR
Audio Channels 8 Channels
Onboard LAN
LAN Chipset Broadcom BCM5784
Max LAN Speed 10/100/1000Mbps
Rear Panel Ports
PS/2 2
Video Ports D-Sub + DVI
HDMI 1 x HDMI
USB 4 x USB 2.0
IEEE 1394 1 x IEEE 1394a
Audio Ports 6 Ports
Onboard USB
Onboard USB 8 x USB 2.0
Onboard 1394
Onboard 1394 1x 1394a
Physical Spec
Form Factor ATX
Dimensions 12.0" x 9.6"
Windows Vista Certified for Windows Vista
Power Pin 24 Pin
Packaging
Package Contents A7DA-S
Driver Disk
User Manual
Rear I/O Panel Shield
IDE/PATA Cable
FDD Cable
SATA Cable
4-pin to SATA Power Cable
eSATA Bracket

Nick89 · Aug 9, 2009

trt740 said:
the specs say

Model
Brand Foxconn
Model A7DA-S
Supported CPU
CPU Socket Type AM2+/AM2
CPU Type Phenom FX / Phenom / Athlon 64 FX / Athlon 64 X2
FSB 2600MHz Hyper Transport (5200 MT/s)
Chipsets
North Bridge AMD 790GX
South Bridge AMD SB750
Memory
Number of Memory Slots 4×240pin
Memory Standard DDR2 1066/800
* 1066MHz memory frequency with AM2+ processors only
Maximum Memory Supported 8GB
Channel Supported Dual Channel
Expansion Slots
PCI Express 2.0 x16 2
PCI Express x1 2
PCI Slots 2
Storage Devices
PATA 1 x ATA100 2 Dev. Max
SATA 3Gb/s 6
SATA RAID 0/1/0+1/5
Onboard Video
Onboard Video Chipset ATI Radeon HD 3300
Onboard Audio
Audio Chipset Realtek ALC888GR
Audio Channels 8 Channels
Onboard LAN
LAN Chipset Broadcom BCM5784
Max LAN Speed 10/100/1000Mbps
Rear Panel Ports
PS/2 2
Video Ports D-Sub + DVI
HDMI 1 x HDMI
USB 4 x USB 2.0
IEEE 1394 1 x IEEE 1394a
Audio Ports 6 Ports
Onboard USB
Onboard USB 8 x USB 2.0
Onboard 1394
Onboard 1394 1x 1394a
Physical Spec
Form Factor ATX
Dimensions 12.0" x 9.6"
Windows Vista Certified for Windows Vista
Power Pin 24 Pin
Packaging
Package Contents A7DA-S
Driver Disk
User Manual
Rear I/O Panel Shield
IDE/PATA Cable
FDD Cable
SATA Cable
4-pin to SATA Power Cable
eSATA Bracket

newtekie has already posted proof in this thread that the second PCIe slot for my mobo is only PCIe 1.1 and I have GPUz Screen's to prove it.

newtekies post: http://forums.techpowerup.com/showpost.php?p=1505578&postcount=20

trt740 · Aug 9, 2009

Nick89 said:
newtekie has already posted proof in this thread that the second slot for my mobo is only PCIe 1.1 and I have GPUz Screen's to prove it.

Please call foxcon and let then know here is what they say

http://www.foxconnchannel.com/en-us/product/Motherboards/detail_overview.aspx?ID=en-gb0000262

A7DA-S

* AMD Phenom™FX, Phenom™, Athlon™ 64x2, Athlon™ 64, Sempron™ processors for Socket AM2.
* Supports AM2+ processor with HT3.0 interface
* 5.2 GT/s HyperTransport™
* 128MB DDR3 1333 Side Port Memory onboard
* Dual channel DDR2 1066/800/667/533 x 4 DIMMs, Max. 8GB
* 2 x PCIe2.0 x16, 2 x PCIe x1, 2 x PCI
* 1 x ATA133, 2 x 1394a, 6 x SATA II (3 GB/s) [one supports eSATA]
* 7.1 channel HDA, Realtek® ALC888GR
* Gigabit LAN, Broadcom® BCM5784
* 12 USB 2.0 ports

they say both blue slots are x16 and i'm not here to argue. i didn't list the specs and if you know the answer already then why ask. Of course a none x16 or x8 slot will make a big difference. If your saying slot two is a x8 slot you won't see a big difference at all.

Nick89 · Aug 9, 2009

trt740 said:
Please call foxcon and let then know here is what they say

http://www.foxconnchannel.com/en-us/product/Motherboards/detail_overview.aspx?ID=en-gb0000262

A7DA-S

* AMD Phenom™FX, Phenom™, Athlon™ 64x2, Athlon™ 64, Sempron™ processors for Socket AM2.
* Supports AM2+ processor with HT3.0 interface
* 5.2 GT/s HyperTransport™
* 128MB DDR3 1333 Side Port Memory onboard
* Dual channel DDR2 1066/800/667/533 x 4 DIMMs, Max. 8GB
* 2 x PCIe2.0 x16, 2 x PCIe x1, 2 x PCI
* 1 x ATA133, 2 x 1394a, 6 x SATA II (3 GB/s) [one supports eSATA]
* 7.1 channel HDA, Realtek® ALC888GR
* Gigabit LAN, Broadcom® BCM5784
* 12 USB 2.0 ports

they say both blue slots are x16 and i'm not here to argue. i didn't list the specs and if you know the answer already then why ask. Of course a none x16 or x8 slot will make a big
difference.

I was asking if one slot only running at PCIe1.1 speeds might be the reason for my horrible performance.

goldfries · Aug 9, 2009

trt740 said:
If you play games like world in conflict or supreme commander you will see a big difference using two high end cards.

Most Crossfire or SLI setups seem to see a marked performance increase with a I7 at 3.4ghz to 3.6ghz. So with a Phenom IIx4 at 3.8ghz you will not bottle neck even 2x 285 gtx in sli. Heck My I7 set to 3.2 ghz will give me 80 FPS with my 295 gtx and in the same games with my old 285gtx I was luck sometimes to break 40 FPS. I've done some playing around and I see the biggest jump in performance starting at 3.4ghz. His 940 should do at least 3.8ghz, overclock it a bit more.

do you find Sup Comm gave improvement? for me, Sup Com I find, has always not being demanding on the graphical department.

Nick89 said:
Can I have someone confirm that my mobo is what might be limiting my performance? the reason I'm asking is because The PCIe lanes only run@ 8x 2.0 and 8x 1.1 with crossfire. My first card is in the PCIe 2.0 slot and my second card is in the PCIe 1.1 slot.

i don't think your board is the bottleneck.

btw what resolution are you playing ah? sorry if I missed it.

Nick89 said:
You guys keep saying my it my processor, but theres nothing I can do about that. I can afford 180$ for a new mobo however. I've been wanting to get a new MB for awhile now the BIOs in this FOXCONN are complete and utter garbage.

as mentioned, I'm using Core2Duo E7200 @ 3.6ghz (not sure how fast is it compared to your setup) and I see performance increase with CF. I've had HD4870X2 (gonna treat that as the HD4870 CF) and GTX295 (and this, being the nV SLI equivalent) on my rig and they work great too.

EDITED : oh btw, saw you're using Acer 24" 2ms 1920x1200.

btw maybe you could use this as reference. hope it helps. It does boost framerates but it does not necessarily double.

http://www.digital-daily.com/video/radeon_hd4870_crossfire_vs_geforce_gtx_280/ gains are subjected to game + details + resolution.

Nick89 · Aug 9, 2009

goldfries said:
do you find Sup Comm gave improvement? for me, Sup Com I find, has always not being demanding on the graphical department.

i don't think your board is the bottleneck.

btw what resolution are you playing ah? sorry if I missed it.

as mentioned, I'm using Core2Duo E7200 @ 3.6ghz (not sure how fast is it compared to your setup) and I see performance increase with CF. I've had HD4870X2 (gonna treat that as the HD4870 CF) and GTX295 (and this, being the nV SLI equivalent) on my rig and they work great too.

I play most of my games at 1920x1200, and I never said I didnt get ANY performance increase, I got alittle performance increase in some games but thats it.

trt740 · Aug 9, 2009

Nick89 said:
I was asking if one slot only running at PCIe1.1 speeds might be the reason for my horrible performance.

Correct me if I'm wrong but PCIE 1.1 is a x8 slot correct and if so you will not see a giant difference unless you would put a dual graphics gpu card in it like a 295gtx. A single 4870 wouldn't take a giant hit.

goldfries · Aug 9, 2009

Nick89 said:
I play most of my games at 1920x1200, and I never said I didnt get ANY performance increase, I got alittle performance increase in some games but thats it.

hi sorry. just edited my post.

forgot that i could check the specs on the left.

posted a link http://www.digital-daily.com/video/radeon_hd4870_crossfire_vs_geforce_gtx_280/

the gains are there, probably just not as significant as what you hoped for.

Nick89 · Aug 9, 2009

Eh, I dont know what to do then. I'm at a loss right now. Getting horrible performance is what made me feel like I got ripped off and that Xfire feels like a gimmick.

If there is anyway for me to fix this and get at least the normal performance gain reported by most people. I would be finally happy with my Xfire setup.

Maby Xfire isnt a gimmick, but right now that sure is how it feels.

trt740 · Aug 9, 2009

Nick89 said:
Eh, I dont know what to do then. I'm at a loss right now. Getting horrible performance is what made me feel like I got ripped off and that Xfire feels like a gimmick.

If there is anyway for me to fix this and get at least the normal performance gain reported by most people. I would be finally happy with my Xfire setup.

Maby Xfire isnt a gimmick, but right now that sure is how it feels.

sometimes it can be a driver /crossfire issue. Crossfire I funny that way sometimes and if your drivers are messed up you will have some trouble.

Nick89 · Aug 9, 2009

trt740 said:
sometimes it can be a driver /crossfire issue

I guess its going to be a bumpy ride.

trt740 · Aug 9, 2009

goldfries said:
do you find Sup Comm gave improvement? for me, Sup Com I find, has always not being demanding on the graphical department.

i don't think your board is the bottleneck.

btw what resolution are you playing ah? sorry if I missed it.

as mentioned, I'm using Core2Duo E7200 @ 3.6ghz (not sure how fast is it compared to your setup) and I see performance increase with CF. I've had HD4870X2 (gonna treat that as the HD4870 CF) and GTX295 (and this, being the nV SLI equivalent) on my rig and they work great too.

EDITED : oh btw, saw you're using Acer 24" 2ms 1920x1200. btw maybe you could use this as reference. hope it helps. It does boost framerates but it does not necessarily double. http://www.digital-daily.com/video/radeon_hd4870_crossfire_vs_geforce_gtx_280/ gains are subjected to game + details + resolution.

Yes my 295 gtx nearly doubles most of my game FPS numbers. I don't play at super high resolution 1680/1050 on a 23 inch screen , but with every thing at max detail my frames jumped a bunch over my 285 gtx.

3volvedcombat · Aug 9, 2009

I got two 9600gso'z on a a8n-sli premium motherboard. I need to buy a bridge but i got 0 performance gain with that 3800+ in there *facepalm* i at least could have gotten at least 5% gain without a bridge and a fail dully. I know a 8800gt in that rig maxed crysis on high at 30 fps, i know automaticly its a cpu bottle neck, but cmon its cod4 not a single gain *facepalm* just realized i forgot to change it to dual vid cards *FACE PALM FOREVER!*

goldfries · Aug 9, 2009

This is model is the A7DA-S and comes with 2 PCI, 2 PCIe x16 (either 1 x PCIe x16 or 2 x PCIe x 8 for CrossFireX) 2 PCIe x1 slots. The board incorporates Realtek Ethernet and sound, 8 ch audio. First impression, pretty decent design. Everything is located nicely. Good color-coding.

http://www.guru3d.com/article/amd-790gx--foxconn-a7das-review/5

well, not like x8 / x8 CF is gonna make much difference. Probably just your game. GTA4 has in-game benchmark, right? What's the Avg FPS like for single vs CF in your setup?

@trt740 - OK!

I usually don't enable AA with Sup Com, despite using the GTX295 for it. I find that AA makes the health bar look ugly (not sharp). my processor takes a hit after like 60 minutes into the game.

newtekie1 · Aug 9, 2009

Nick89 said:
Can I have someone confirm that my mobo is what might be limiting my performance? the reason I'm asking is because The PCIe lanes only run@ 8x 2.0 and 8x 1.1 with crossfire. My first card is in the PCIe 2.0 slot and my second card is in the PCIe 1.1 slot.

When I originally bought this mobo it was advertised as having two PCIe 2.0 slots but the second slot is in fact PCIe 1.1.

You guys keep saying my it my processor, but theres nothing I can do about that. I can afford 180$ for a new mobo however. I've been wanting to get a new MB for awhile now the BIOs in this FOXCONN are complete and utter garbage.

The second PCI-E slot being only 1.1 x8 will definitely prevent you from getting the most out of Crossfire with two high end cards, however you should still see a very noticeable performance increase. Even the old P35 boards, with the second slot being only a 1.1 x4 slot, showed noteable performance increases in Crossfire. I believe it is also recommended to use two crossfire bridges in situations where both slots don't run at x16, as the second bridge helps take some communication load off the PCI-E bus(I've only heard this, never really seen proof, but it might be worth trying).

Upgrading to a new motherboard might just kill two birds with one stone on this one. It will remove the PCI-E bottleneck you have with your current board, and might also allow you to overclock your processor higher easing the CPU bottleneck.

Nick89 · Aug 9, 2009

newtekie1 said:
The second PCI-E slot being only 1.1 x8 will definitely prevent you from getting the most out of Crossfire with two high end cards, however you should still see a very noticeable performance increase. Even the old P35 boards, with the second slot being only a 1.1 x4 slot, showed noteable performance increases in Crossfire. I believe it is also recommended to use two crossfire bridges in situations where both slots don't run at x16, as the second bridge helps take some communication load off the PCI-E bus(I've only heard this, never really seen proof, but it might be worth trying).

Upgrading to a new motherboard might just kill two birds with one stone on this one. It will remove the PCI-E bottleneck you have with your current board, and might also allow you to overclock your processor higher easing the CPU bottleneck.

Theres an increase but its disapointing at best. Next paycheck looks like im getting a new mobo. Finally a usable BIOS!

eidairaman1 · Aug 9, 2009

oh ic it now 790GX, its a good chipset n all but it doesnt have the Full Capabilities the FX chipset does. AMD is best to just have the FX and X Chipset.

angelkiller · Aug 9, 2009

eidairaman1 said:
oh ic it now 790GX, its a good chipset n all but it doesnt have the Full Capabilities the FX chipset does. AMD is best to just have the FX and X Chipset.

The 790GX chipset has the capability of doing PCI-E 2.0 8x/8x CF. And that's plenty of bandwidth. The 790FX can do 16x/16x 2.0 IIRC. But still, your board should be doing PCI-E 2.0 8x/8x. But I don't think that that's your problem. The performance hit on using a PCI-E 1.1 8x is only like 10-15%. So even if your GPU-Z screenies are correct, you wouldn't see horrible performance. I think either A) You're not playing games that really tax the graphics sub-system or B) You have a driver issue somewhere.

I will again suggest running some quick benchmarks. (I think FurMark has a built in benchmark) I would test one card in the top slot VS one card in the bottom slot. It would be interesting to see what your mobo gives the card in the bottom slot. Then I would test both cards in CF and compare that to one card in the top slot so you can see if CF is working or not.

Nick89 · Aug 9, 2009

angelkiller said:
The 790GX chipset has the capability of doing PCI-E 2.0 8x/8x CF. And that's plenty of bandwidth. The 790FX can do 16x/16x 2.0 IIRC. But still, your board should be doing PCI-E 2.0 8x/8x. But I don't think that that's your problem. The performance hit on using a PCI-E 1.1 8x is only like 10-15%. So even if your GPU-Z screenies are correct, you wouldn't see horrible performance. I think either A) You're not playing games that really tax the graphics sub-system or B) You have a driver issue somewhere.

I will again suggest running some quick benchmarks. (I think FurMark has a built in benchmark) I would test one card in the top slot VS one card in the bottom slot. It would be interesting to see what your mobo gives the card in the bottom slot. Then I would test both cards in CF and compare that to one card in the top slot so you can see if CF is working or not.

Heres my furmark score. I have to goto bed for tonight.

System Name	Starlifter :: Dragonfly
Processor	i7 2600k 4.4GHz :: i5 10400
Motherboard	ASUS P8P67 Pro :: ASUS Prime H570-Plus
Cooling	Cryorig M9 :: Stock
Memory	4x4GB DDR3 2133 :: 2x8GB DDR4 2400
Video Card(s)	PNY GTX1070 :: Integrated UHD 630
Storage	Crucial MX500 1TB, 2x1TB Seagate RAID 0 :: Mushkin Enhanced 60GB SSD, 3x4TB Seagate HDD RAID5
Display(s)	Onn 165hz 1080p :: Acer 1080p
Case	Antec SOHO 1030B :: Old White Full Tower
Audio Device(s)	Creative X-Fi Titanium Fatal1ty Pro - Bose Companion 2 Series III :: None
Power Supply	FSP Hydro GE 550w :: EVGA Supernova 550
Software	Windows 10 Pro - Plex Server on Dragonfly
Benchmark Scores	>9000

System Name	9th Level
Processor	AMD Ryzen 5 5600X
Motherboard	MSI X570 Carbon wifi
Cooling	EK Basic 360, x2 250mm, x1 140mm, x1 120mm fans.
Memory	32GB Corsair Vengeance 3200mhz.
Video Card(s)	EVGA RTX 3080 12GB FTW3
Storage	500gb ssd, 2tb ssd, 6tb HD.
Display(s)	MSI 27" Curved 1440p@165hz
Case	HAF 932
Power Supply	Corsair HX850W
Software	Windows 10 64bit

Processor	Intel Core i7 10850K@5.2GHz
Motherboard	AsRock Z470 Taichi
Cooling	Corsair H115i Pro w/ Noctua NF-A14 Fans
Memory	32GB DDR4-3600
Video Card(s)	RTX 2070 Super
Storage	500GB SX8200 Pro + 8TB with 1TB SSD Cache
Display(s)	Acer Nitro VG280K 4K 28"
Case	Fractal Design Define S
Audio Device(s)	Onboard is good enough for me
Power Supply	eVGA SuperNOVA 1000w G3
Software	Windows 10 Pro x64

Processor	AMD Ryzen 7 1800X
Motherboard	MSI X370 Xpower Gaming Titanium
Cooling	NH-U12S SE-AM4
Memory	2x 8GB Corsair Vengeance LPX DDR4-3000
Video Card(s)	Gigabyte G1 Gaming RX 470 4GB
Storage	ADATA SU800 256GB SSD + WD 4TB SSHD
Display(s)	BenQ XL2430T
Case	Cooler Master MasterCase Maker 5t
Power Supply	ThermalTake ToughPower Grand 650W
Mouse	Cooler Master MasterKeys Pro S
Keyboard	Cooler Master Xornet II

System Name	Apple Bite
Processor	Intel I5
Motherboard	Apple
Memory	40gb of DDR 4 2700
Video Card(s)	ATI Radeon 500
Storage	Fusion Drive 1 TB
Display(s)	27 Inch IMac late 2017

CrossFire / SLI still just gimmicks

hat

Enthusiast

Nick89

newtekie1

Semi-Retired Folder

goldfries

trt740

Nick89

trt740

Nick89

Attachments

trt740

Nick89

goldfries

Nick89

trt740

goldfries

Nick89

trt740

Nick89

trt740

3volvedcombat

New Member

goldfries

newtekie1

Semi-Retired Folder

Nick89

eidairaman1

The Exiled Airman

angelkiller

Nick89

Attachments

System Name	My Computer
Processor	Core 2 Q9550 4Ghz 1.23volts
Motherboard	Gigabyte
Cooling	Corsair
Memory	OCZ
Video Card(s)	Galaxy
Storage	Western Digital
Display(s)	Acer
Case	Lian li
Audio Device(s)	Asus
Power Supply	Corsiar
Software	Microsoft
Benchmark Scores	25,000 3dmark06 at 4.35Ghz processor, 835core card!

System Name	PCGOD
Processor	AMD FX 8350@ 5.0GHz
Motherboard	Asus TUF 990FX Sabertooth R2 2901 Bios
Cooling	Scythe Ashura, 2×BitFenix 230mm Spectre Pro LED (Blue,Green), 2x BitFenix 140mm Spectre Pro LED
Memory	16 GB Gskill Ripjaws X 2133 (2400 OC, 10-10-12-20-20, 1T, 1.65V)
Video Card(s)	AMD Radeon 290 Sapphire Vapor-X
Storage	Samsung 840 Pro 256GB, WD Velociraptor 1TB
Display(s)	NEC Multisync LCD 1700V (Display Port Adapter)
Case	AeroCool Xpredator Evil Blue Edition
Audio Device(s)	Creative Labs Sound Blaster ZxR
Power Supply	Seasonic 1250 XM2 Series (XP3)
Mouse	Roccat Kone XTD
Keyboard	Roccat Ryos MK Pro
Software	Windows 7 Pro 64