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ASUS Radeon HD 5870 Overclocks to 1525 MHz

By - Source: Tom's Hardware US | B 28 comments

The ASUS EAH5870 MATRIX Radeon HD 5870 card saw an 70-percent increase in core clock speed.

This forum post over on Xtreme Systems claims that community members Elmor and Kinc managed to overclock an ASUS EAH5870 MATRIX Radeon HD 5870 card (2GB) to a crazy-fast core speed of 1525 MHz (core), making a 70-percent speed jump over the default core speed of 894 MHz (850 MHz for the reference card).

The memory overclock wasn't quite as spectacular, cranked up to 1300 MHz, showing a rather pleasant 8.3-percent increase. The overall process remained quite stable at the 1500 MHz point, proven with the use of 3DMark Vantage and scoring P29342 points at the performance reset.

The duo kept the overclocked card cool by using liquid-nitrogen evaporators. The bench also featured an Intel Core i7 980X Extreme Edition six-core processor clocked at 4492.9 MHz, an ASUS Rampage III Extreme motherboard, 6GB of Corsair Dominator GTX DDR3 memory, and an Antec 1200W power supply.

The forum post displays all the validating credentials such as the bench, 3DMark Vantage screens, and CPU-Z screens. "Around 1525-1550/1325-1350 should be possible with more time on this one," the post claimed.

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Top Comments
  • 24 Hide
    daeros , April 14, 2010 10:32 PM
    Why do I get the feeling that everyone over at Nvidia just
  • 23 Hide
    tacoslave , April 14, 2010 11:27 PM
    I bet it probably still uses less power than a fermi card.
  • 20 Hide
    RazberyBandit , April 14, 2010 10:04 PM
    Nice OC, but with LN2, I'm not really surprised. Now if somehow they did this on air, I'd be shocked!
Other Comments
  • 20 Hide
    RazberyBandit , April 14, 2010 10:04 PM
    Nice OC, but with LN2, I'm not really surprised. Now if somehow they did this on air, I'd be shocked!
  • 3 Hide
    jacobdrj , April 14, 2010 10:21 PM
    Interesting. Still wish there was headroom with air.
  • -5 Hide
    septentriones , April 14, 2010 10:21 PM
    I wonder if you could build large passive heat-sinks to replace the stock fan. I you had them sticking out into the empty space in your case it should cool better right? I wonder if you could buy them or cut some out of aluminum.
  • 4 Hide
    jerreece , April 14, 2010 10:22 PM
    I was impressed by this initially. Then I realized it had to be using LN2. At which point I decided it wasn't very exciting.
  • -3 Hide
    drowned , April 14, 2010 10:31 PM
    Meh the Phenom II goes up to 6ghz on liquid helium, but sucks against intel when overclocked on air. So forgive me if I don't get excited for something that 99.999% of people won't be doing and therefore doesn't matter.
  • 24 Hide
    daeros , April 14, 2010 10:32 PM
    Why do I get the feeling that everyone over at Nvidia just
  • 19 Hide
    nforce4max , April 14, 2010 11:01 PM
    DaerosWhy do I get the feeling that everyone over at Nvidia just a little?


    I thought I smelled something......

  • 23 Hide
    tacoslave , April 14, 2010 11:27 PM
    I bet it probably still uses less power than a fermi card.
  • 4 Hide
    elel , April 14, 2010 11:36 PM
    septentrionesI wonder if you could build large passive heat-sinks to replace the stock fan. I you had them sticking out into the empty space in your case it should cool better right? I wonder if you could buy them or cut some out of aluminum.

    The problem is that there is much more material between the heat and 'gone'. Think of this passive heatsink as a broad river with almost no slope, the active as a narrower one with more slope and a shorter distance. The second will get rid of its water (heat) faster than the first.
  • 0 Hide
    septentriones , April 14, 2010 11:48 PM
    elelThe problem is that there is much more material between the heat and 'gone'. Think of this passive heatsink as a broad river with almost no slope, the active as a narrower one with more slope and a shorter distance. The second will get rid of its water (heat) faster than the first.

    If a large passive block wouldn't work (sorry stupid idea), could you have a ducted series of thin fins extend from the processor and have a dedicated 120 mm or so fan blow over them to the outside? with the greater surface area and a powerful fan I would think more heat could be removed.
  • 10 Hide
    salgado18 , April 15, 2010 12:05 AM
    In other news, nVidia's lab caught fire moments ago. The flames where quickly dispatched by firemen, and no one was injured.

    Questioned about the possible cause, one nVidia employer stated that "It all happened very fast. One moment we were trying to push our cards to the limit, then suddenly everything was filled with flames."

    The nVidia president said that such an accident was expected.
  • 3 Hide
    rambo117 , April 15, 2010 12:37 AM
    1525?!? DANG!! Where are them Crysis benches? :p 
  • 0 Hide
    Anonymous , April 15, 2010 12:51 AM
    @_@
  • 3 Hide
    jednx01 , April 15, 2010 1:03 AM
    Holy cow. I have seen some impressive overclocks in my time, but that is insane. I want benchmarks! :p 
  • -5 Hide
    idisarmu , April 15, 2010 1:23 AM
    septentrionesI wonder if you could build large passive heat-sinks to replace the stock fan. I you had them sticking out into the empty space in your case it should cool better right? I wonder if you could buy them or cut some out of aluminum.


    Maybe in an antec skeleton or Xclio Wind-tunnel with all the fans cranked.... or if you put your case outside in the winter- that might work too.
  • 0 Hide
    masterjaw , April 15, 2010 3:50 AM
    I thought it was done by air. Anyway, still impressive though.
  • 9 Hide
    alextheblue , April 15, 2010 4:29 AM
    salgado18In other news, nVidia's lab caught fire moments ago. The flames where quickly dispatched by firemen, and no one was injured.Questioned about the possible cause, one nVidia employer stated that "It all happened very fast. One moment we were trying to push our cards to the limit, then suddenly everything was filled with flames."The nVidia president said that such an accident was expected.
    "We designed them to catch on fire and burn down our labs."
  • 0 Hide
    Anonymous , April 15, 2010 4:42 AM
    So... When can I buy this thing?
  • 0 Hide
    Anonymous , April 15, 2010 5:07 AM
    I am 100% sure that in the picture there's a Corsair PSU (you can see the logo shape in the usual position), probably the TX850 judging by the color... where's the Antec 1200???
  • 1 Hide
    Jenome , April 15, 2010 7:24 AM
    Asus products has one of the best performance however it has rarely put an effort into its heat management, allowing its product to have less than decent temp.

    For normal users they r not gonna use LN2, so overclocking wise it will not go much higher than others due to heat constraints.
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