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Thread: Crossfire performance & CPU Scaling

  1. #1
    Xtreme Member
    Join Date
    Apr 2008

    Exclamation Crossfire performance & CPU Scaling

    How much of a bottleneck should I expect when using 2x 5870's in crossfire with a Q9650 @ 4ghz?
    I know I can expect some, but I am wondering if it would be worth the 400-500$ investment sandy setup sooner rather then later?

    This would be in comparison to a sandy 2500K in the 4-4.4 ghz range. All at 1900x1200.

    I will upgrade eventually anyway, but if the performance gap is significant enough I will upgrade sooner.
    I have found some reviews on the web, but they all used the older Kentsfield based quads and not the Yorkfield ones, and show some suprising numbers such as a e8600 beating a q6700 with crossfire'd 5870s.

    Can anyone she some light on this? Hopefully somethat that has made a similar upgrade (q9650 to 2500k)?

    Q9650 @ 4ghz | EP45-UD3P | 5870 |

  2. #2
    I am Xtreme
    Join Date
    Dec 2008
    Not much of a bottleneck, really. Should be alright.
    Donate to XS forums
    Quote Originally Posted by jayhall0315 View Post
    If you are really extreme, you never let informed facts or the scientific method hold you back from your journey to the wrong answer.

  3. #3
    Registered User Utroz's Avatar
    Join Date
    Nov 2002
    it will tie you over till Bulldoozer......hopefully it is out around september16ish... Cant wait.. I wanna do ES or even Write a review.
    File Server

    Super Old system

  4. #4
    Xtreme Enthusiast
    Join Date
    Feb 2009
    Lima, Peru
    For gaming having that CPU @4Ghz does not worth another cpu/mobo/ram upgrade.

    $400-500 to spend? --> HD7990 (sell your 5870's to some bitcoin fan and you upgrade for free)
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  5. #5
    Xtreme Cruncher
    Join Date
    Apr 2006
    going to an oced 2500k or 2600k would boost your minimum Frame rates for sure but im not sure it's worth a huge upgrade ATM, wait or BD numbers or SB-E or IB is you can wait that long. If you JUST gaming the difference won't be huge.
    CPU: Intel Core i7 3930K @ 4.5GHz
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  6. #6
    Xtreme Member
    Join Date
    Apr 2008
    Thanks for all the help.

    I think I will keep my current core sys and just eek a few more mhz out of it, its got the headroom i just never fiddled with it.

    Zalbard, your avatar brings back memories. Reinstalls steel soldiers...

    HD7990 details are still too thin on the ground, and frankly what is out now looks fake.
    Q9650 @ 4ghz | EP45-UD3P | 5870 |

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