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Thread: GPU performance crossover?

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    GPU performance crossover?

    Hey guys,

    I'm currently running a HD4850 512MB. Looking to upgrade, but I don't have an enormous amount of money to chuck around. I've seen some of the lower end HD5xxx series cards available at a fairly cheap price, but would it be a mistake to assume that, just because it's a bigger number, it's actually more powerful?

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    Re: GPU performance crossover?

    The HD5770 1GB is around the speed of an HD4870 whereas the HD5750 is around the speed of an HD4850.

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    Re: GPU performance crossover?

    Okay, I see. So if I was looking to upgrade, a good rule of thumb would be too add 1000 to my current GPU number makes sense, I suppose!

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    Re: GPU performance crossover?

    Quote Originally Posted by Hologide View Post
    Okay, I see. So if I was looking to upgrade, a good rule of thumb would be too add 1000 to my current GPU number makes sense, I suppose!
    And even then it's probably not much of a performance increase, due to the rest of the stuff in your system remaining the same.

    Desktop - i7 930, XMS3 6x2GB DDR3, X58A-UD3R (rev2), 2xHD5870 1GB (CrossFireX), Crucial C300 64GB , 2x2TB WD Caviar Green, Corsair 650TX
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    Re: GPU performance crossover?

    In rough terms:

    HD5670: 1.25x HD4670
    HD5750: 0.95x HD4850
    HD5770: 0.95x HD4870
    HD5830: 1.30x HD4870
    HD5850: 1.55x HD4870
    HD5870: 1.80x HD4870

    GTX460 768MB: 0.95x HD5830
    GTX460 1GB: 1.05x HD5830
    GTX465: 1.1x HD5830
    GTX470: 1.05x HD5850
    GTX480: 1.1x HD5870

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