ATI Radeon HD 2900 XT: Calling a Spade a Spade
by Derek Wilson on May 14, 2007 12:04 PM EST- Posted in
- GPUs
The AMD HD 2000 Series Lineup
The announcement today includes a top-to-bottom lineup of DX10 class hardware including four mobile parts (with one additional DX9 mobile part sharing the HD 2000 series naming) and five desktop parts. While all of this hardware is being made public, we've only got one piece of hardware to bring to the table today: the R600 based Radeon HD 2900 XT.
Performance on all other R6xx parts won't be available until "late June", but we can still talk about what these parts will be when they finally make it to market. On the desktop, in addition to the HD 2900 XT, we will see the Radeon HD 2400 Pro and XT in the "value" segment, with the HD 2600 Pro and XT providing good mainstream-to-midrange gaming performance.
ATI Radeon HD 2600 XT
ATI Radeon HD 2400 XT
ATI Radeon HD 2400 Pro
There is currently no add-in retail hardware planned that tops the HD 2900 XT, but we are hearing rumors that faster parts may be available through OEMs only. This is unconfirmed at present, so take it with a grain of salt. Let's take a look at a break down of what we do know we'll be getting:
| AMD R6xx Hardware | ||||||||
| SPs | RBEs | Core Clock | TMUs | DDR Rate | Bus Width | Memory Size | Price | |
| HD 2900 XT | 320 | 16 | 740MHz | 16 | 825MHz | 512bit | 512MB | $399 |
| HD 2600 | 120 | 4 | 600 - 800MHz | 8 | 400 - 1100MHz | 128bit | 256MB | $99 - $199 |
| HD 2400 | 40 | 4 | 525 - 700MHz | 4 | 400 - 800MHz | 64bit | 128MB / 256MB | <$99 |
It's harder to pin down all the specs of the mobile parts, as all the clock speeds (and sometimes bus width) can change depending on the TDP envelope a notebook maker is working with. While we aren't certain, our best guess is that mobile parts named similarly to desktop parts will have the same internal configuration of SPs, texture units, and render back ends. The exception here is the Mobility Radeon HD 2300, which is a DX9 part based on R5xx hardware.
While 2400 and 2600 standard and XT versions will exist in the mobile space, there are currently no plans for a high end mobile part. This is very likely due to the high power draw and low performance per watt we see with AMD's 80nm R600. We don't expect to see a higher performance mobile part until AMD can get the power consumption of its higher end hardware down (likely with a process shrink).
Just for comparison, let's take a look at what NVIDIA is currently offering as well. Here's a table of all the G8x based parts on the market.
| NVIDIA G8x Hardware | ||||||||
| SPs | ROPs | Core Clock | Shader Clock | DDR Rate | Bus Width | Memory Size | Price | |
| 8800 Ultra | 128 | 24 | 612MHz | 1.5GHz | 2.16GHz | 384bit | 768MB | $830+ |
| 8800 GTX | 128 | 24 | 576MHz | 1.35GHz | 1.8GHz | 384bit | 768MB | $600 - $650 |
| 8800 GTS | 96 | 20 | 513MHz | 1.19GHz | 1.6GHz | 320bit | 640MB | $400 - $450 |
| 8800 GTS 320MB | 96 | 20 | 513MHz | 1.19GHz | 1.6GHz | 320bit | 320MB | $300 - $350 |
| 8600 GTS | 32 | 8 | 675MHz | 1.45GHz | 2GHz | 128bit | 256MB | $200 - $230 |
| 8600 GT | 32 | 8 | 540MHz | 1.19GHz | 1.4GHz | 128bit | 256MB | $150 - $160 |
| 8500 GT | 16 | 4 | 450MHz | 900MHz | 800MHz | 128bit | 256MB / 512MB | $89 - $129 |
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johnsonx - Monday, May 14, 2007 - link
and to which are you going to admit to?What was that old saying about glass houses and throwing stones? Shouldn't throw them in one? Definitely shouldn't them if you ARE one!
Puddleglum - Monday, May 14, 2007 - link
You mean, while it does compete performance-wise?johnsonx - Monday, May 14, 2007 - link
No, I'm pretty sure they mean DOESN'T. That is, the card can't compete with a GTX, yet still uses more power.INTC - Monday, May 14, 2007 - link
Chadder007 - Monday, May 14, 2007 - link
When will we have the 2600's out in review?? Thats the card im waiting for.TA152H - Monday, May 14, 2007 - link
Derek,I like the fact you weren't mincing your words, except for a little on the last page, but I'll give you a perspective of why it might be a little better than some people will think.
There are some of us, and I am one, that will never buy NVIDIA. I bought one, had nothing but trouble with it, and have been buying ATI for 20 years. ATI has been around for so long, there is brand loyalty, and as long as they come out with something that is competent, we'll consider it against their other products without respect to NVIDIA. I'd rather give up the performance to work with something I'm a lot more comfortable with.
The power though is damning, I agree with you 100% on this. Any idea if these beasts are being made by AMD now, or still whoever ATI contracted out? AMD is typically really poor in their first iteration of a product on a process technology, but tend to improve quite a bit in succeeding ones. I wonder how much they'll push this product initially. It might be they just get it out to have it out, and the next one will be what is really a worthwhile product. That only makes sense, of course, if AMD is now manufacturing this product. I hope they are, they surely don't need to make anymore of their processors that aren't selling well.
One last thing I noticed is the 2400 Pro had no fan! It had a heatsink from Hell, but that will still make this a really attractive product for a growing market segment. Any chance of you guys doing a review on the best fanless cards?
DerekWilson - Wednesday, May 16, 2007 - link
TSMC is manufacturing the R600 GPUs, not AMD.AnnonymousCoward - Tuesday, May 15, 2007 - link
"I bought one, had nothing but trouble with it, and have been buying ATI for 20 years."That made me laugh. If one bad experience was all it took to stop you from using a computer component, you'd be left with a PS/2 keyboard at best.
"...to work with something I'm a lot more comfortable with."
Are you more comfortable having 4:3 resolutions stretched on a widescreen? Maybe you're also more comfortable with having crappier performance than nvidia has offered for the last 6 months and counting? This kind of brand loyalty is silly.
MadBoris - Monday, May 14, 2007 - link
As far as your brand loyalty, ATI doesn't exist anymore. Furthermore AMD executives will got the staff so you can't call it the same.Secondly, Nvidia has been a stellar company providing stellar products. Everyone has some ups and downs. Unfortunately with the hardware and drivers this is ATI's (er AMD's) downs.
This card should do ok in comparison to the GTS, especially as drivers mature. Some reviews show it doing better than GTS640 in most tests, so I am not sure where or how discrepencies are coming about. Maybe hardware compatibility, maybe settings.
rADo2 - Monday, May 14, 2007 - link
Many NVIDIA 8600GT/GTS cards do not have a fan, are available on the market now, and are (probably; different league) much more powerful than 2400 ;) But as you are a fanboy, you are not interested, right?