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2 x ATI X1900 XT Crossfire - heat and noise?

Discussion in 'Graphics Cards' started by ozy, 24 Mar 2006.

  1. ozy

    Associate

    Joined: 21 Apr 2003

    Posts: 43

    Location: Suffolk, UK

    Hi,

    I'm thinking of purchasing a new system with the following graphics cards

    ATI Radeon X1900 ***Crossfire Edition*** 512MB GDDR3 TV-Out/Dual DVI (PCI-Express) - Retail (GX-045-CO)
    Connect3D ATI Radeon X1900 XT-X 512MB GDDR3 AVIVO TV-Out/Dual DVI (PCI-Express) - Retail (3055) (GX-046-CO)

    For those who already have this setup, how noisy are the X1900 cards in general? As much as I would like to get two, i'd rather the system didn't sound like a jet engine taking off.

    Also, with two cards in a setup like this, i'd assume a lot of heat is generated, and that having at least one case fan is pretty much a requirement?

    Cheers

    Chris (ozy)
     
  2. fullfat

    Wise Guy

    Joined: 20 Jul 2005

    Posts: 1,653

    Location: Nottingham

    if i recall correctly, you can save some cash and just buy the XT with the master card as if you bought a xtx it would be clocked down to match the master anyways.
    i cant help with noise, but i would suggest at least 2 case fans. one at the front and one at the back, purely to get air in and out efficiently and not just out
     
  3. ozy

    Associate

    Joined: 21 Apr 2003

    Posts: 43

    Location: Suffolk, UK

    Thanks for the response fullfat.

    If a slave XTX card clocks down to an XT, then i'd definately go for an XT. Although I have some spare money, i'm not going to throw it away for no benefit.

    I'm assuming a master crossfire card can run quite happily on its own without a slave? As I was considering purchasing the master card first, then putting a second XT in the future when the games get a little choppy. :)

    Chris (ozy)
     
  4. AMDX23800+

    Hitman

    Joined: 11 Mar 2006

    Posts: 676

    When using SLI, aren't the 2 cards supposed to be identical, exactly the same cards ?
     
  5. squiffy

    Banned

    Joined: 17 Mar 2006

    Posts: 9,155

    ATI Crossfire is not like Nvidia SLI. ATI require Crossfire motherboard and a Master Crossfire and a normal Crossfire capable ATI videocard, ie a 1900 Master and 1900XT slave.

    Nvidia require Nforce SLI chipset and two identical SLI capable Nvidia cards, same range and same memory config.
     
  6. fullfat

    Wise Guy

    Joined: 20 Jul 2005

    Posts: 1,653

    Location: Nottingham

    the master card will be fine on its own matey :)
     
  7. gary996

    Mobster

    Joined: 24 Aug 2003

    Posts: 3,341

    Location: Gillingham Kent

    both cards will run at there default speed so an xtx will run faster than the xt, which means this setup will be a little quicker than 2x xt's
     
  8. fornowagain

    Sgarrista

    Joined: 3 Nov 2004

    Posts: 9,835

    Location: UK

    Heat's not a problem as most of it's vented out the back of the case. There are supposed to be some drivers out soon that will do away with the master card. So you could have the fastest combination of two XTX's, but you will need a motherboard based on the ATI RD580 chipset. Noise, I don't have a problem with my single card, can't speak for dual cards.
     
  9. fullfat

    Wise Guy

    Joined: 20 Jul 2005

    Posts: 1,653

    Location: Nottingham


    i was sure the master card would make the xtx clock slower to match up??
     
  10. Chronictank

    Mobster

    Joined: 12 Jan 2006

    Posts: 2,548

    Last edited: 25 Mar 2006
  11. ajgoodfellow

    Capodecina

    Joined: 24 Dec 2004

    Posts: 11,343

    Location: Shirley, Solihull, UK

    Crossfire supports different cards having independent clock speeds so the XTX will be able to run at the faster clock speed

    They run hot but the cooling exhausts all of the hot air out of the case so this isn't a worry

    Noise wise they're said to be a little noisy but not too noisy. They're very noisy on startup but temperature controlled

    nVidia cards aren't necessarily better when running two. It all depends on the cards and the applications. Crossfire is implemented in hardware and it doesn't require any software support bar the drivers unlike SLI which is implemented in software. Compare the Master card and the standard card and you'll see the extra chip on the Master card for the compositing engine - this is one of the reasons why the Master card is more expensive
     
  12. ACESHIGH

    Mobster

    Joined: 17 Aug 2005

    Posts: 4,305

    As said above, in crossfire each card runs at its own clock speeds, thus a X1900XTX & X1900 mastercard will be marginally quicker than a X1900XT & X1900 mastercard. The quicker clocked card simply does more work.

    Having heard a single X1900XT i dont think they are loud when playing at all.