7970 crossfire on msi z77 g43 - x16 and x4, would this be a bottleneck?


If you were using the MSI Z77-g43 (link: http://uk.msi.com/product/mb/Z77A-G43.html)

with 2 x 7970 in crossfire, would this limit the capability of the second 7970?

I have no idea about x16 and x4, I believe they are to do with bandwidth, but im not sure if they will actually have an impact on gaming and its fps.

3 answers Last reply
More about 7970 crossfire msi z77 g43 x16 bottleneck
  1. Is it going to bottleneck your system? Egh, not really.

    Will it allow you to fully realize the potential of your CF 7970s? Again, egh, not really.

    The performance difference is negligible though so it really isn't a deal breaker. I wouldn't worry about it.
  2. In all honesty you can't notice any discernible difference except that you can expect micro-stuttering to be more minimal at x16.

    Check out this article for some numnbers: http://www.anandtech.com/show/5458/the-radeon-hd-7970-reprise-pcie-bandwidth-overclocking-and-msaa

    Hope that helps.
  3. Thanks guys.

    I mostly play FPS games like far cry 3 and battlefield 3.. so losing 4 fps really doesnt mean much to me.

    If it gets too bad, i will change the mobo
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