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Help, Nvida or ATI, 2 or 1? - Page 2

post #11 of 21
Yes, hes saying you can flash the 6950 cards bios to a 6970 card, but most of the time it depends on which brand it is, pretty sure Asus ones you can, but still risks involved.
You can dowload the flash tools @ techpowerup homepage, and follow Senator's guide.

As some have pointed out, if you bought a cheaper card and Crossfire them or SLI them, you are pretty much stuck with no upgrade path but buy new cards again.
So best choices you have is to invest in a decent single card atm, as much as you can afford cuz it'll be worth your while when you double up. The 6950 and the GTX 570 are very good contenders as for performance/price. Both cards would give you a much better experience to what you have currently.

My mate has the 6950s flashed to 6970s and I can honestly vouch when he says the 6970s in crossfire absolutely stomps a Gtx 580. By a mile.
And the Gtx 570 is around your price range too, and also a very good choice, for it's the second fastes card out atm.

It's really up to your needs, if you like more VRAM (benefits higher resolution, antialiasing), then go for the AMD Radeon 6950s, if you like Nvidia drivers and support, and dont mind having less VRAM, then get GTX 570s. In my experience, I tinkle with both brands depending on price/perfomance, generally ATI offers decent quality with higher maximum frame rates, as Nvidia offers a smoother experience taxing maximum fps, but minimum FPS is usually better than ATI cards.
post #12 of 21
Oh....n i forgot to add, NO u cannot mix different GPUs in either SLI or Crossfire, they must be SAME GPU, doesn't matter about brand, it can be from different companies. For example: A Gigabyte GTX 470 can SLI with EVGA GTX 470 Superclocked.....or an ATI 6950 2G Eyefinity version can CRossfire with ati 6950 2G reference version....same gpu. MUst be same architecture.

YOu CANNOT SLI or crossfire different gpu architecture, you cant SLI a gtx260 with a gtx470. They have complelely different hardware setups.
Edited by HeroPants - 2/16/11 at 11:16am
post #13 of 21
I vote just buy the 6950, unlock it to a 6970, and Crossfire it later when you have the cash.
post #14 of 21
Be warned about unlocking the 6950 into a 6970.....

Nobody else seems to mention this, when they discuss the unlock. The 6950 has 2x 6pin PCIe connections. The 6970 has 1x 6pin + 1x 8pin. I know I've seen quite a few threads about 6950's unlocked, and they don't overclock as well as a 6970. Well....that's exactly why they don't.

It is a very solid option to do though. A stock clocked, unlocked, 6950 will be as fast or faster than a GTX 570 (stock). Once overclocked on the unlocked 6950, you'll be comparing to a GTX 580 (stock).
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post #15 of 21
I wouldn't say a 6970 would be comparable to a GTX 580. Those are monster cards at a monster price.
Two 6950's hang out with the GTX 580 when it comes to price : performance, but the 580 falls a bit short, and is $50-$60 cheaper, so figure out what your price is, and go with what you want.
A 6970 is alone at it's price, but considering a 6950 can unlock to be damn near the same value, I think the 6950 is a sure win in every $250+ price range. The performance difference isn't even huge when overclocking; a 20% overclock in CCC will give you the same performance on both a 6950 and 6970.
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post #16 of 21
Thread Starter 
does unlocking an 6950 void the warrenty at all?
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post #17 of 21
Quote:
Originally Posted by xsf View Post
Two "1gb" 450's do not equate to a "2gb" card setup. They will also not be as powerful as the 6950, and neither will the 5770's. They would be "roughly" as good as top end of last generations cards (480 and 5870). I would suggest, if it's in your price range to pickup a 6950 or gtx 570 and sli/xFire down the road. You also have to know which setup your motherboard/psu will handle.


Doesn't work that way and shouldn't be done that way regardless.


If you were picking up a 6950, Asus isn't a bad choice.

Gluck with your purchasing.
Wow, show off! I want to do the explaining too! This man know who he's talking about and very on point. + rep!
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post #18 of 21
Quote:
Originally Posted by Danny1107 View Post
does unlocking an 6950 void the warrenty at all?
And how would anyone know? You've got that wonderful second bios. Be conservative in your overclocking, like with any card, and you'll be fine. On stock voltage I've got both of mine to 1ghz/450mhz for clock and ram.

You do lack the the 8 pin power connection sure, but you can still shove an awful lot of power into these. The 6950 unlock isn't currently that risky with the dual bios and an identical (for all intensive purposes) PCB to the 6970. It's a great value even with the shader unlock with the onboard 2 gig of ram. The unlock and flash to a 6970 just puts the cards over the top.
    
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post #19 of 21
Quote:
Originally Posted by HeroPants View Post
Oh....n i forgot to add, NO u cannot mix different GPUs in either SLI or Crossfire, they must be SAME GPU, doesn't matter about brand, it can be from different companies. For example: A Gigabyte GTX 470 can SLI with EVGA GTX 470 Superclocked.....or an ATI 6950 2G Eyefinity version can CRossfire with ati 6950 2G reference version....same gpu. MUst be same architecture.

YOu CANNOT SLI or crossfire different gpu architecture, you cant SLI a gtx260 with a gtx470. They have complelely different hardware setups.
Not completely true. Some mismatched ATI/AMD GPU's can be Crossfired together. A 5870 and a 5850 can run in CF. However, a 5870 and 5770 cannot be CF. You would have to refer to AMD's charts to determine mixed Crossfire compatibility.

Still, it is generally preferable to run matched graphics cards (i.e. 5870 + 5870).
post #20 of 21
Thread Starter 
I read about the 2nd bios afew minutes after posting that question had a quick look at the guide and it seems easy enough to do

thanks for everyones advice will be ordering a 6950 on saturday
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