Originally Posted by Casey Ryback;13684769
someone has to put this to rest one day.
There is no point doing the 6970 flash ESPECIALLY CROSSFIRING ON AIR!
More voltage equals more heat.
More heat equals higher fan levels.
Higher fan levels on 6950 are annoying and also unnecessary.
You run the risk of damaging the card's memory also.
You can run higher overclocks on the 6950 bios with less voltage.
These tests on the 6950 overclocked are the same speeds as a 6970 and OMG perform almost exactly the same.
i7 930 @ 3.8GHz
GPU: MSI 6950 using the Stock Bios, Sapphire Shader Bios and Sapphire 6970 Bios
(OC GPU clocks are the same as a stock 6970)
F1 2010 - DX11
8xMSAA, All Details Maxed
6950 Stock: 57 Avg. / 52 Min.
6950 Shader Unlock OC +20% PC: 63 Avg. / 58 Min.
6950 w/ 6970 Bios +20% PC: 63 Avg. / 58 Min.
6950 Stock OC +20% PC: 62 Avg. / 57 Min.
Alien Vs Predator Benchmark v1.03 - DX11
6950 Stock: 58.8
6950 Shader Unlock OC +20% PC: 65.3
6950 w/ 6970 Bios +20% PC: 65.7
6950 Stock OC +20% PC: 63.1
Mafia 2 - DX9
Max Settings - Physx Off
6950 Stock: 54.5 Avg. / 200 Max / 18.5 Min.
6950 Shader Unlock OC +20% PC: 57.7 Avg. / 200 Max / 20 Min.
6950 w/ 6970 Bios +20% PC: 57.3 Avg / 250 Max / 18.5 Min.
6950 Stock OC +20% PC: 56.7 Avg / 200 Max/ 20 Min.
GPU @ 960/1350 using only 1.15V
3DMARK VANTAGE GPU SCORE 20395 - better than anything I've seen on a 6970 flashed 6950.
Or can someone prove me wrong?
Cool story bro.
Seriously what is your point? We've all heard all these lovely stories about the RAM timings being different on the 6970 versus the 6950 and that flashing said 6950 to the 6970 BIOS may damage the RAM.
Prove it. Show some evidence that conclusively links the problem to the RAM timings or voltage or whatever variable you wish. As I have stated in numerous other threads here on OCN: if someone can please provide some proof that the RAM is the culprit and that by flashing my card it's a guaranteed ticket to bricking my GPU, I will be happy to reset it back and just unlock the shaders.
Until then, all your doing is fanning the scare posts out there. It's worthless. Everyone who is flashing a new BIOS onto their GPU should already understand the risks inherent in doing that. It isn't like this is the first time you've been able to unlock additional performance on a GPU. Most first gen GTX465's could flash to 470's. But surprise surprise there was a risk involved there too.
The point of this is simple. I wanted to squeeze the most I could out of the GPU's I bought. That wouldn't have been accomplished by simply overclocking a 6950 would it. In the same way you chose to unlock the shaders for that extra little bit (which isn't that much percentage wise over a stock 6950at the same clocks was it?), I chose to take it a step further and do a full flash to a 6970, and then
overclock it from there.
As for the heat thing, again what's your point. If you wanted the best performance on air you would go with a TF3 or some such anyways and then miss out on the additional shaders. Heat isn't a problem for us. Sorry it is for you? I bought reference so I can throw them into my W/C loop at some point.