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Thread: AMD Radeon HD 6870 and HD 6850 confirmed to be launched on 22.10.2010

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  1. #1
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    Quote Originally Posted by zerazax View Post
    Its tough to expect much more out of the same process, but keep in mind that AMD used a 30% smaller core and got similar performance... and Cayman is larger than Cypress by a good amount, so I bet its performance is a lot higher than people think
    But then again, bart xt is more or less 25% faster clocked than a 5850, which makes up for most of the difference. I doubt the 6970 will have significantly faster clocks because of its size(900mhz max) vs cypress(850). Basically everything has to come from core improvements and added components.

    Clocks appear to match polygon counts on both cards(5850 and 6870).
    Last edited by tajoh111; 10-19-2010 at 10:47 AM.
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    If anyone wants to compare to stock HD5870 here is my run at the same CPU clocks (bar 2 extra cores which only influence CPU score):
    http://service.futuremark.com/compare?3dmv=2622805
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    GPU-Z's 128-bit reading is cause GPU-Z is a database. I'm sure once its updated, it will read it right

    Quote Originally Posted by tajoh111 View Post
    But then again, bart xt is more or less 25% faster clocked than a 5850, which makes up for most of the difference. I doubt the 6970 will have significantly faster clocks because of its size(900mhz max). Basically everything has to come from core improvements and added components.

    Clocks appear to match polygon counts on both cards(5850 and 6870).
    You're right that clocks make up a big part of it, but it depends on what other things they put into Cayman. If, as rumored, Cayman has more architectural changes, then we may see even more improvement. Cypress after all was pretty inefficient compared to Juniper (we see that Juniper x 2 often beat Cypress handily, despite having effectively the same numbers)

    Quote Originally Posted by Chumbucket843 View Post
    they had the same advantage with evergreen and didnt go for perf/$. maybe they will this time, one can only hope.
    They did. That Fermi was 6 months late and a dissapointment was hardly ATI's fault (TSMC's early 40nm woes didn't help supply either). Simple supply vs. demand at work.

    Plus, ATI had no target price point since nothing was there to compete. Since ATI has a target card it wants to attack (the GTX 460), they have a target price point now

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