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Thread: CPU scaling with the HD5970!

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    CPU scaling with the HD5970!

    More details here:
    http://www.legionhardware.com/document.php?id=869&p=0

    Basically a Core i7 920 at 2.4GHZ is fast enough. Values with the Phenom II will be added next week according to the review.

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    Re: CPU scaling with the HD5970!

    Very interesting article indeed, thanks for that Cat!

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    Re: CPU scaling with the HD5970!

    they've put quite a lot of effort into making that guide, but i can't really see what they get out of it.
    overclock your CPU and your PC becomes faster? doesn't everyone already know that?

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    Re: CPU scaling with the HD5970!

    Hmm not bad but it will be more interesting to see it on the lower power systems when they do them.
    Hack: i5 2500~ASROCK Z68 EXTREME4 GEN3~8GB Vengance~HD4770~ ANTEC 302~CX600.
    Gamer: i7 3820 @ 4.4Ghz~MSI X79A-GD65~16GB Redline 2133~Gigabyte GTX580~TT A90~CM SILENT PRO 1000w.



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    Re: CPU scaling with the HD5970!

    Quote Originally Posted by matty-hodgson View Post
    they've put quite a lot of effort into making that guide, but i can't really see what they get out of it.
    overclock your CPU and your PC becomes faster? doesn't everyone already know that?
    Did you read it? The article is saying overclock your CPU and your PC doesn't become faster, for playing games at least.

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    Re: CPU scaling with the HD5970!

    2560x1600 8xaa/16xaf? Of course the cpu isn't going to be the limiting factor

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    Re: CPU scaling with the HD5970!

    Quote Originally Posted by kalniel View Post
    Did you read it? The article is saying overclock your CPU and your PC doesn't become faster, for playing games at least.
    but it makes a 15% difference in one of the games, 15% is quite a bit for an overclock.

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    Re: CPU scaling with the HD5970!

    Quote Originally Posted by matty-hodgson View Post
    but it makes a 15% difference in one of the games, 15% is quite a bit for an overclock.
    Its not that big if the frame rates before are 120 and after overclocking is 138, would you be even able to notice the difference? Then again if you've bought an i7 it would be silly not to overclock it. I think the point of that guide is to show that you don't need a very fast cpu for playing games, however I would like to see lower resolutions tested and other processors such as the phenom II thrown into the mix.

    Here is another article you might be interested in

    http://www.hardocp.com/article/2009/..._cpu_scaling/1

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    Re: CPU scaling with the HD5970!

    Quote Originally Posted by sadbuttrue View Post
    2560x1600 8xaa/16xaf? Of course the cpu isn't going to be the limiting factor
    Agreed, it's pretty much a waste of time testing a CPU at a res that high as it will always be GPU limited. If they wanted to prove a point that in real-world situations it wouldn't matter what CPU is used, they could have done it easily enough by just including two frequencies in the review: 2Ghz and 4GHz.

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    Re: CPU scaling with the HD5970!

    Quote Originally Posted by shadowmaster View Post
    Its not that big if the frame rates before are 120 and after overclocking is 138, would you be even able to notice the difference? Then again if you've bought an i7 it would be silly not to overclock it. I think the point of that guide is to show that you don't need a very fast cpu for playing games, however I would like to see lower resolutions tested and other processors such as the phenom II thrown into the mix.

    Here is another article you might be interested in

    http://www.hardocp.com/article/2009/..._cpu_scaling/1
    but that's cos the GPU is like.. amazing. barely anyone is ever going to own that GPU so there's no point in even testing it. they should've used an everyday GPU like a 5850 or a GTX260 or something like that (going on the audience of such reviews), then see what difference the CPU makes.

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    Re: CPU scaling with the HD5970!

    Would be nicer if they did a lower res as at higher res', the CPU is hardly doing any work compared to the GPU.

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    Re: CPU scaling with the HD5970!

    Quote Originally Posted by matty-hodgson View Post
    but that's cos the GPU is like.. amazing. barely anyone is ever going to own that GPU so there's no point in even testing it. they should've used an everyday GPU like a 5850 or a GTX260 or something like that (going on the audience of such reviews), then see what difference the CPU makes.
    Good point, maybe this is something for hexus to do a review on?

    Anyhow if you have time matty, run this benchmark http://forums.hexus.net/graphics-car...benchmark.html, we've had a few ati benchmarks but no nvidia ones.

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    Re: CPU scaling with the HD5970!

    Scaling with the Phenom II X4 has been added to the article.

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    Re: CPU scaling with the HD5970!

    Very interesting, especially the higher clocked results often out classing the higher clocked i7. Suggests there's a bottleneck building up in the i7 that AMD have managed to work around.

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    Re: CPU scaling with the HD5970!

    Quote Originally Posted by CAT-THE-FIFTH View Post
    More details here:
    http://www.legionhardware.com/document.php?id=869&p=0

    Basically a Core i7 920 at 2.4GHZ is fast enough. Values with the Phenom II will be added next week according to the review.
    Most Core 2 Duos at 3GHz will be enough as well. Very few games (mostly console ports) take advantage of quad core.

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