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6750 question .

post #1 of 4
Thread Starter 
How does 2 HD6750 perform ?
1gb DDR5 better or 2gb DDR3 better ?
Can I take one gigabyte 6750 and another ASUS 6750 and link up together ?
post #2 of 4
Quote:
Originally Posted by Yeong View Post

How does 2 HD6750 perform ?
1gb DDR5 better or 2gb DDR3 better ?
Can I take one gigabyte 6750 and another ASUS 6750 and link up together ?

They perform about on par with one HD 5850. Overclocked, about the same as one HD 5870.

Get the GDDR5 model. GDDR3 would severely hinder performance on the 128 bit bus.

You can mix brands.
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Light Gamer #1
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post #3 of 4
Thread Starter 
What if I mix two different type and different brand GPU ? It's that okay ?
post #4 of 4
Quote:
Originally Posted by Yeong View Post

How does 2 HD6750 perform ? 1gb DDR5 better or 2gb DDR3 better ?
Can I take one gigabyte 6750 and another ASUS 6750 and link up together ?

its just not worth going for multi GPU in the low end. Instead of getting two HD 6750 cards get a single HD 7850 . Superior DX11 architecture and much better performance in DX11 games. Also even at 1080p games like BF3 need more than 1 GB RAM for max settings. Also CF performance scaling can vary from game to game. In games where scaling is poor or the CF profiles don't work the HD 7850 will be vastly superior.

HD 7850 overclocks very well. At 1 Ghz matches GTX 570 and at 1.2 Ghz GTX 580.

http://www.techpowerup.com/reviews/Powercolor/HD_7850_PCS_Plus/28.html

HD 5770 - 49
HD 7850 (1 Ghz) - 100
GTX 480 -100
HD 6970 - 102
GTX 570 - 103

FYI HD 6770 is identical to HD 5770. so you see HD 7850 at 1 Ghz is twice the performance of a HD 6770. And compared to HD 6750 the HD 7850 is even more better.

here is the sapphire HD 7850 2 GB for USD 200 (190 after rebate)
http://www.newegg.com/Product/Product.aspx?Item=N82E16814102998

if you want a card below USD 150 get the EVGA GTX 560 for USD 160 (130 after rebate)
http://www.newegg.com/Product/Product.aspx?Item=N82E16814130661
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