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6950 2GB vs 1GB

post #1 of 25
Thread Starter 
I'm surely no expert at GPUs, nor am I an expert in any field associated with computers, but I was always wondering something.

One of my friends says that 2GB makes virtually no difference in terms of performance/FPS if you don't make use of Eyefinity or use a resolution of 1920x1080 or higher. I debated that fact because.... well, 2 > 1.

I was wonder if there is any significant performance increase by purchasing a 2GB card instead of a 1GB card. I do not use Eyefinity.

Like in terms of FPS, how much of an increase should I expect? Would there be a graphical improvement of any sort?

Hmm...

It had just occurred to me that I ask too many questions...

post #2 of 25
2gb reference version unlocks the shader to match 6970 performance.
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post #3 of 25
Quote:
Originally Posted by Beanie View Post
I'm surely no expert at GPUs, nor am I an expert in any field associated with computers, but I was always wondering something.

One of my friends says that 2GB makes virtually no difference in terms of performance/FPS if you don't make use of Eyefinity or use a resolution of 1920x1080 or higher. I debated that fact because.... well, 2 > 1.

I was wonder if there is any significant performance increase by purchasing a 2GB card instead of a 1GB card. I do not use Eyefinity.

Like in terms of FPS, how much of an increase should I expect? Would there be a graphical improvement of any sort?

Hmm...

It had just occurred to me that I ask too many questions...

I think more VRAM allows for higher AA which isn't a bad thing (could be wrong here). And it should be good for games, if you look at Dragon Age 2's high-res texture pack, it requires a min. 1GB VRAM.
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post #4 of 25
your friend is right , 1gb is more than satisfactory for 1920x1080 .. i use eyefinity myself on an unlocked 6950 and the 2gb of ram is definatly noticed when gaming at 4800x1080 - 6020x1080 .. 1 gb would lag extremely in these situations .
    
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post #5 of 25
1200p and below - 1Gb
1600p to Eyefinity - 2Gb

Your not guaranteed a 6970 unlock either, so I wouldn't count on that unless you absolutely feel the need to move to the 2Gb version. Overall, between the two, for common resolutions like 1080p, you won't notice a huge difference between the extra buffer size, and it will be cheaper too
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post #6 of 25
Even 1080p games can exceed 1Gb Vram such as crysis and metro 2033.
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post #7 of 25
you can unlock the 6950 2gb and get better performance
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post #8 of 25
Thread Starter 
How would one go and unlock a 6950 2GB?

What would that accomplish?

I'm quite confused... :<
post #9 of 25
Unlocked or not, 6950 is a pretty darn good bang for the buck card. I personally would recommend the 2 GB because it can be had for no more than $20 - $30 more than the 1 GB version. It is a question of need it and not have it versus have it and not need it. I rather have the later for that kind of price difference.
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post #10 of 25
Quote:
Originally Posted by Beanie View Post
How would one go and unlock a 6950 2GB?

What would that accomplish?

I'm quite confused... :<
You flash the 6950 with the BIOS of a 6970. Thus, you get 6970 performance. With that said, doing a full unlock (e.g. increasing the clocks to 6970 clocks and unlocking the shaders) usually leads to instability due to the different memory chips used on the 6950. You can just unlock the extra shaders and leave the clocks at stock frequency. This way you get close to 6970 performance without doing the instability or potential damage than can be caused by flashing to a full 6970 BIOS. I did it with both my cards (just the shader unlock) and they are usually within 0-5% of the performance of 6970 crossfire.
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