Overclocking programme for HD6950

[tommybhoy]

Anyone else wanna post there 6950 clocks and volts?

6950>70 CrossFire:

1.175v up to 950MHz/1350MHz

1.26v 1GHz/1350MHz(Usually just for benching)

No one cares for little old 6950's anymore.

I do when it's faster than the top of the range champs when CrossFired and oc'ed!

Most of the time they are running 950MHz/[email protected] as, in CrossFire, they are phenominal(heavily oc'd 680/7970 at least equalling performance).

Maybe something for you to think about rather than splashing out on a very costly 680!

 

[shawsy109]

6950>70 CrossFire:

1.175v up to 950MHz/1350MHz

1.26v 1GHz/1350MHz(Usually just for benching)

Most of the time they are running 950MHz/[email protected] as, in CrossFire, they are phenominal(heavily oc'd 680/7970 at least equalling performance).

Maybe something for you to think about rather than splashing out on a very costly 680!

This HIS 6950 iceQ i have is a monster, its at 950/1350 on 1.175v.

Just running kombustor with it at 1Ghz/1350 @ 1.25v and custom fan keeping it at 60 degrees with fan at 60%.

Think im just gonna stick with 950/1350 on 1.175v, dont wanna hurt it. Id go for a 2nd card right now if i could, but my mobo's other pci-e slot is x4 only plus my psu is a 650w and it hasnt got the extra 2 6pin power connectors.

my mobo

http://www.overclockers.co.uk/showproduct.php?prodid=MB-364-GI&groupid=701&catid=5&subcat=1990

my psu, I think it has spare molex connectors for the adapters that come with the card.

http://www.overclockers.co.uk/showproduct.php?prodid=CA-056-OC&groupid=701&catid=123&subcat=1098

I really would get a 2nd card if i was sure the performance would be good. I mean the card costs 215 quid on OCuk right now, better than spending 450 on a gtx680. Even a psu upgrade and a 2nd card, but the x4 pci-e slot on the mobo might hold it back. The clocks im running at i reckon 650w isnt enough for 2 cards. I would defo have to upgrade the PSU.

 

[tommybhoy]

Be careful your memory doesn't go pop!

It will be the first thing that goes pop, memory oc'ing doesn't get you very much performance gains at all on the 69**'s.

Others in the forum have ran 2 6950's on a 650w psu, but get some conformation first, I'm using a 750w Seasonic myself.

The 4x lane some say it only nocks a small amount of performance off, but again read up on it first along with doing your homework on CrossFire that's the most important part to read up on if you are thinking about it.

 

[Surveyor]

Be careful your memory doesn't go pop!

It will be the first thing that goes pop, memory oc'ing doesn't get you very much performance gains at all on the 69**'s.

I leave the VRAM alone and just go for a good overclock on the core.

The 4x lane some say it only nocks a small amount of performance off, but again read up on it first along with doing your homework on CrossFire that's the most important part to read up on if you are thinking about it.

Some testing here showing the difference: Does CrossFire Work At x16/x4?

 

[shawsy109]

Be careful your memory doesn't go pop!

It will be the first thing that goes pop, memory oc'ing doesn't get you very much performance gains at all on the 69**'s.

Others in the forum have ran 2 6950's on a 650w psu, but get some conformation first, I'm using a 750w Seasonic myself.

The 4x lane some say it only nocks a small amount of performance off, but again read up on it first along with doing your homework on CrossFire that's the most important part to read up on if you are thinking about it.

Im going to look into it, I have always been told a powerful single card is better than 2 less powerful cards, power and heat wise. I change my mind so much, a month ago it was xfire, then a 7970, then a 680, now back to xfire lol.