Which memory is best 1.6ns or 2.0ns?

[blacbul1]

I have a X850XT PCI-E with a Artic Cooling Rev.2 ATI 5 VGA Silencer. Whilst fitting this I took the opportunity to record what type of GPU and memory I had
They read as follows:

GPU

ATi
R480
215RBHAGA11F
GG7757.1
0517AA

TAIWAN PCI
EXPRESS

Memory

SAMSUNG 516
K4J55323QF - GC16
AWC639PZA

My query is this, are these good for overclocking? I do know that the 16 in the memory serial number refers to the fact that the memory is 1.6ns would this be faster or slower than 2.0ns memory?

[gygabite]

1.6 is faster...

[KennyT772]

1.6ns is faster as the number is lower.

[trog100]

1.6 is 600mhz stuff..

trog

[blacbul1]

Thanks for the replies, they are much appreciated. trog100, I have now found that I can run stable at 560/621, confirming your prediction of 600mhz+ :)

However, I now have 2 further related queries:
a) any suggestions on how I could possibly increase the speed of my GPU?

b) my 3dMark05 score is at best just over 5000 and usually around 4300. I have seen comparably overclocked cards or even stock X850XTs with much higher scores (6000 to 7000+ ) why would this be?

This is a discription of my system.

http://www.pcservicecall.co.uk/layout.aspx?ID={76890f01-3aed-4710-9fb8-230dcb1fcc85}&CatID={efbd62b0-1eae-4cda-a5f8-ce9a34045e87}


The original graphics card has been upgraded with the X850XT/Arctic Cooling Rev.2 ATI 5 VGA Silencer and the stock HSF cooler has been replaced with an Arctic Cooling Freezer 7 Pro.

[KennyT772]

your ram is low. 1gig is pretty much the norm these days but 512 will still run everything.

[blacbul1]

your ram is low. 1gig is pretty much the norm these days but 512 will still run everything.

I thought as much, thanks for clarifying KennyT772.

Could you or anyone else reccommend memory, I no idea whatsoever I am sorry to say. I would like to upgrade to 2mb eventually if not immediately (this depends on cost.)

[gygabite]

How about four modules of this?
http://www.newegg.com/Product/ProductList.asp?Submit=ENE&N=2010170147+50008476+1052307857&Subcategory=147&description=&srchInDesc=&minPrice=&maxPrice=&ATTR1=&ATTR2=&ATTR3=2010170147+50008476+1052307857&ATTR4=&ATTR5=&ATTR6=&ATTR7=&ATTR8=

[Jimmy 2004]

However, I now have 2 further related queries:
a) any suggestions on how I could possibly increase the speed of my GPU?

The only real way to increase your overclock would be to get yourself new cooling.