Official HD 2900 Discussion Thread

[mascaras]

You might already have an issue if you OC CPU etc too. Check how many Amps your PSU can do on the 12V rail(s).

AMD recommends a 750W PSU for a system with a single 2900XT.

HD 2900 thermal numbers out, 225W

Three kings including the XL

ATI will introduce three Radeon HD 2900 cards on the 14th of May. According to a document we've seen the most powerful one is called the Radeon HD 2900 XT 1024MB DDR4. Its TDP, thermal design power of the GPU, is an astonishing 180 Watts, while the whole board dissipates 225 Watts.

The second card is the Radeon HD 2900 XT 512 MB GDDR3 and its GPU's TDP is 160W due to slightly lower clock speed and the whole board again dissipates 225 Watts.

The third and final card is the Radeon HD 2900 XL, a cheaper version of the marchitecture with 512 MB GDDR3 and its GPU will dissipate 130 Watts, while the board will dissipate 205 Watts. We believe that the power components on the card gets really hot, 82 degrees C on the outside of the cooler is what we've already seen.

http://www.fudzilla.com/index.php?op...d=850&Itemid=1

[Shintai]

HD 2900 thermal numbers out, 225W

Yes, and how many W can the standard PSU do on the 12V rails?
About 25% is dedicated for 3.3 and 5V, CPUs today are more or less using only 12V too. So a 225W GPU and say a 100-150W OCed CPU, HD(s) etc quickly count up high.

[mascaras]

Yes, and how many W can the standard PSU do on the 12V rails?
About 25% is dedicated for 3.3 and 5V, CPUs today are more or less using only 12V too. So a 225W GPU and say a 100-150W OCed CPU, HD(s) etc quickly count up high.

R600 minimal requirements pictured

Update: Works with a good 400-500W as well

As some of our readers actually didn't believe that their bellowed R600XT might need 750W or more here is some proof. AMD clearly states you need a 750W or better power supply for this hot beast. You also need an Athlon or Pentium 4 of better CPU, 512MB to work and 1024MB for optimal performance or more. You can read the original part here.

The card supports Windows XP, 2000 and Vista both 32 and 64 bit one. We still have hope that the card might work with a good 500W but this is what AMD recommends. Well, it's all here.

Update: We still stay behind the picture we posted but several sources close to AMD, partners and retailers who had the card confirmed that a single Radeon HD 2900 XT works with a good quality 450 - 500W PSU as well. One of the sources confirmed the slide we posted but said that this is actually a Crossfire Radeon HD 2900XT with Quad core system requirement. Some of our friends will test the card for us and we will let you know if it works with 500W. Stay tuned. Gibbo from Overclockers had tested his card and he said it will run with 400-500W PSU and you can read it here.





http://www.fudzilla.com/index.php?op...d=810&Itemid=1

regards