System Builder Marathon, Dec. 2009: $2,500 Performance PC

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Power, Heat, And Efficiency

Our current build consumes approximately one third the idle power of our most recent high-end $2,500 build and most of that savings can probably be attributed to the updated graphics configuration. Full load power is also down significantly, making even our 850W power supply seem like overkill.

Our graphics card ran hot, as it appears ATI’s automatic fan controls are set for a peak temperature of 86 degrees Celsius. Our CPU ran nearly as hot under full load, and combining CPU and GPU loads (not shown) pushed our CPU temperatures upward by another 10 degrees.

An average performance increase of 18% combined with an average power increase of 23% yields an efficiency deficit of around 4% due to overclocking. Experience tells us that a lower-voltage overclock could have yielded an efficiency increase compared to stock settings, while a higher-voltage overclock would have made efficiency far worse.

Thomas Soderstrom
Thomas Soderstrom
Thomas Soderstrom is a Senior Staff Editor at Tom's Hardware US. He tests and reviews cases, cooling, memory and motherboards.
222 Comments Comment from the forums
  • noob2222
    If you went with the 5970, this build would have been fine, but with using 2 5870s, I would have opted a little different, x58 isn't that much more.

    Cpus are almost identical in price, wich leaves only the MB.

    UD4P - 170
    UD3R - 188

    I think in my book it would have been worth the $18.

    The other thing thats a bit overpriced is the HDD as mentioned. At $300 for 2TB, thats $150/TB. 1.5TB drives cost that much, put in 3 drives and save $150 and have .5TB more space.

    Aside from that, good build.
    Reply
  • ColMirage
    Wait, why is the contest limited to the USA now?

    Tom's.
    I am disappoint.


    Aside from that, the build is nice, and I can't wait to see the other ones.
    Reply
  • scook9
    This article has me second guessing me selling my desktop!
    Reply
  • Onyx2291
    Very powerful, but if I were to have it. I think I'd steer clear of overclocking myself haha.
    Reply
  • Gigahertz20
    Horrible build, $2,500 and no SSD drive? That is inexcusable, a SSD drive is one of the best parts you can add to a high end computer, the noticeable performance improvement going from a regular hard drive is like night and day.

    The $860 dollars spent on video cards and $600 for hard drives is a waste. This system should have went with one 2TB WD Caviar Black hard drive for storage and then a 160GB SSD hard drive as the main drive. For a video card, one Radeon 5870 is more then enough, the money saved by not buying a second 5870 should have gone to buying a good full tower case and better CPU cooler.
    Reply
  • enzo matrix
    Good all round build.
    Reply
  • rambo117
    Great read, as always. Gosh, if you guys are calling last SBM performance PC "outdated", id hate to know what my rig is... =/
    Reply
  • liquidsnake718
    enzo matrixGood all round build.

    Yes I was thinking just that.... an SSD for the master, and a 1tb or a 2tb for backup slave drive.... then a 5970. That would have been ideal as this is considered high end.....
    Reply
  • tacoslave
    ColMirageWait, why is the contest limited to the USA now?Tom's.I am disappoint.Aside from that, the build is nice, and I can't wait to see the other ones.
    Yes we know you're a disappointment. Geez you're worse than kevin parrish.
    Reply
  • wft, you put crossfire on a P55 chipset? You do know that there are only 16 PCIX lanes to the CPU right?

    $300 for a 2TB drive? Are you insane? How can you possibly justify not getting 2 x 1TB Caviar Blacks for $200 total and then getting an SSD?

    2 X 5870 for $860 over 5970 for $650? How much of a performance difference can you possibly expect with Crucial CAS 9-9-9-28 over CORSAIR XMS3 9-9-9-24 which costs $90 for 4GB?

    No water cooling on a system that costs $2500?

    This is the worst build I've ever seen at this price point.
    Reply