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7950 or 6950 CrossFire?

post #1 of 7
Thread Starter 
Ok so ive got a choice here.

Should i get one single 7950 for £250, or two 6950's for £250?

I know the performance of the 6950's will be alot better than a 7950, my only concern is, ive read alot about people having issues with the 6950's and crossfire.

Opinions please! =)
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Dragunov
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post #2 of 7
7950. More smooth gameplay, more vram, not too much less performance. And it hogs a lot less power and creates a lot less heat.
 
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post #3 of 7
Quote:
Originally Posted by AciPunkEx View Post

Ok so ive got a choice here.
Should i get one single 7950 for £250, or two 6950's for £250?
I know the performance of the 6950's will be alot better than a 7950, my only concern is, ive read alot about people having issues with the 6950's and crossfire.
Opinions please! =)

a heavily overclocked HD 7950 can get quite close to HD 6950 CF with much more consistent performance. You will not be dependent on CF profiles working fine for a game to get maximum performance. With a single card microstuttering can be avoided. Also the HD 7900 architecture is much superior to HD 6900. Its always advisable to get a single card if you can get close to the same performance of a dual GPU solution using a less powerful card.

http://www.anandtech.com/show/5476/amd-radeon-7950-review/18

Metro 2033 1920 x 1200 Very High AAA

HD 7950 (1050) - 63
HD 7950 (900) - 57.1
HD 6950 - 38.5

http://www.techpowerup.com/reviews/Powercolor/HD_7850_PCS_Plus/9.html
http://www.techpowerup.com/reviews/Sapphire/HD_7950_Flex/31.html

BF3 1920 x 1200 4x AA
HD 7950 (1025) - 69.7
HD 7950 (860) - 57.1
HD 6950 - 36.8

These are stock voltage overclocked HD 7950. With voltage tweaking even higher speeds can be achieved.
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post #4 of 7
Thread Starter 
Quote:
Originally Posted by raghu78 View Post

a heavily overclocked HD 7950 can get quite close to HD 6950 CF with much more consistent performance. You will not be dependent on CF profiles working fine for a game to get maximum performance. With a single card microstuttering can be avoided. Also the HD 7900 architecture is much superior to HD 6900. Its always advisable to get a single card if you can get close to the same performance of a dual GPU solution using a less powerful card.
http://www.anandtech.com/show/5476/amd-radeon-7950-review/18
Metro 2033 1920 x 1200 Very High AAA
HD 7950 (1050) - 63
HD 7950 (900) - 57.1
HD 6950 - 38.5
http://www.techpowerup.com/reviews/Powercolor/HD_7850_PCS_Plus/9.html
http://www.techpowerup.com/reviews/Sapphire/HD_7950_Flex/31.html
BF3 1920 x 1200 4x AA
HD 7950 (1025) - 69.7
HD 7950 (860) - 57.1
HD 6950 - 36.8
These are stock voltage overclocked HD 7950. With voltage tweaking even higher speeds can be achieved.

Thanks, pretty much sums it up for me, im gonna be going with the 7950.

Which one would you reccomend getting though?


SAPPHIRE AMD Radeon HD 7950 OC 3072MB GDDR5
950MHz Core, 5000MHz GDDR5,

or


MSI AMD Radeon HD 7950 Twin Frozr III OC 3072MB GDDR5
880MHz Core, 5200MHz

Thanks =)
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Dragunov
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post #5 of 7
Quote:
Originally Posted by AciPunkEx View Post

Thanks, pretty much sums it up for me, im gonna be going with the 7950.
Which one would you reccomend getting though?
SAPPHIRE AMD Radeon HD 7950 OC 3072MB GDDR5
950MHz Core, 5000MHz GDDR5,
or
MSI AMD Radeon HD 7950 Twin Frozr III OC 3072MB GDDR5
880MHz Core, 5200MHz
Thanks =)

Sapphire HD 7950 950 Mhz edition . faster clocks out of the box. also the sapphire dual x cooler is better than the msi twin frozr. so helps your card keep temps below 70c even with voltage overclocking to 1.15 Ghz or higher speeds. IMO get the sapphire card. the 950 mhz card's manufacturer code is 11196-10-40G

http://www.novatech.co.uk/products/components/atiradeongraphicscards/amdhd7950series/11196-10-40g.html

edit : noticed you are in UK so updated the seller
Edited by raghu78 - 8/18/12 at 9:53am
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post #6 of 7
either are fine. both have good coolers and HD 7970 PCBs. I would go for the sapphire, but that's just because my MSI 7950 had to be RMAed and the sapphire has higher stock clocks as well as a nice dark PCB which goes with black cases.
 
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post #7 of 7
I vote for more powerful single-card!
 
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Thuban Powah!
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