[6870 1GB] Sapphire reference or Powercolor pcs

[dr.noob]

Hello, i bought these 2 from a friend, i'm still waiting for them, which one is better to overclock 24/7 lets say at 1.25v?

One of them is to offer to my brother, the other for my personal use and i have the mk-13 if i need to lower the temps.

 

[MeldarthX]

well depends honestly really my xfx 6870 would hit 1gz but not stably at 1.25v It was at 900 to begin with but run easily at 985 at 1.25v; and 1200 memory.....

MWV though - one card might oc extremely well and the other might not; only way to know is to test them both in your system.....whichever is better keep

 

[dr.noob]

Gratitude.

edit: what is your score in 3dmark11 performance at stock and with OC?

 

[dr.noob]

I have both cards now, the Powercolor does not allow me to use the voltage setting, in the other hand the Sapphire let me go to 1.3v, i tried both with MSI Afterburner.

Both use 1.175v at load and at least they do 950mhz without tweaking anything which is good and they are stable in 3dmark11 performance benchmark.

What is the max clock these cards can go?1000?Max safe voltage 1.25v?

I gave the Powercolor to my brother.

Both are good cards but my other card, the 650ti 2gb, can do more 100 points in 3dmark11.And with the MK-13 tweaked at 1183/6600 it does 5400 points.

13.3 beta 6870 stock 1.175v http://www.3dmark.com/3dm11/6269969
13.3 beta 6870 950 1.175v http://www.3dmark.com/3dm11/6270017

314.21 650ti stock 1.062v http://www.3dmark.com/3dm11/6063135
314.21 650ti 1183/6600 24/7 @ MK-13 1.162v http://www.3dmark.com/3dm11/6203992

 

[MeldarthX]

that's pretty much what I'm hitting; small varibles....

 

[dr.noob]

13.3 beta 6870 985 1.175v http://www.3dmark.com/3dm11/6270940 P4650

13.3 beta 6870 1000 1.175v http://www.3dmark.com/3dm11/6270969 P4703 Gold chip?

 

[dr.noob]

It stopped in Unigine Valley at the middle/end of the bench, with one click more, 1.181v it passed.

The MSI AFTERBURNER does not let me pass from 1000, is there another way around or should i test with Trixx?

edit: With Trixx i can go up to 1300mhz, will give it a try.

 

[MeldarthX]

you should also be able to get the memory to up to at least 1150 if not 1200.....

 

[dr.noob]

13.3 beta 6870 1050 (Not tuned) 1.250v http://www.3dmark.com/3dm11/6271526 P4820 Passed Unigine Valley

With 1.3v 1100 it crashed on Unigine Valley.

I'll give it a try in the mem thanks.