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Thread: 5870 Bottleneck Investigation (CPU and/or Memory Bandwidth)

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  1. 10-01-2009, 06:50 PM #14
    Kuntz
    Kuntz is offline
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    Quote Originally Posted by Chumbucket843 View Post
    i went with texture filtering on high because ATi said that the 5870 is bandwidth limited 50% of the time.

    ROUND 2: crysis demo benchmark
    0x AA 0x AF
    all settings on very high.
    http://img39.imageshack.us/img39/6995/crysisbecnh.jpg
    framerates were MUCH smoother with memory at full speed, something you have to see to believe. a 100% increase in bandwidth gained 30% speed and much smoother fps. this should be interesting.
    You increased memory speed by 15% (1000 -> 1150) and frame rate only went up 3.4% (29 -> 30). That is not from the increased bandwidth, that is from the decrease in memory latency.
    Last edited by Kuntz; 10-01-2009 at 06:54 PM. Reason: typo
    My First WC Worklog -> Silverstone TJ07, X58 Classified, Dominator GT, i7 920 D0 (3849B041)
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