8800 GTS 640mb or HD2900XT?

wow this thread question keeps being re-asked.

basically,the 2900 is consistently outperforming the 8800gts and even beating the 8800gtx in some games.

check out these benchmarks.
http://www.legionhardware.com/list.php?category=03
http://www.gamespot.com/features/6177688/p-6.html
the first is a general comparison,the second shows how the 2900 beats even the 8800gtx in bioshock (dx9)

the only drawbacks for the 2900 are its very high power consumption and heat generation.these things do not really bother me.it also depends on pricing depending on where u are

I can't wait anymore,and I forgot to say that I'm going to keep the GPU for about 3 years.I think I will go with the 2900XT
what PSU would you recommend minimum for a low price?

If I was you I'd nab a 8800 GTS....g92 should be out around late november/october...this way if you grab a EVGA card you can use the Step up program to get a g92...you just have to slap on some extra cash for it. that is if you have the cash to do this...

here are most best 2900xt reviews :

http://xbitlabs.com/articles/video [...] games.html

Conclusion :
Well, it is either as fast, or faster than GeForce 8800 GTS 640MB in most cases, but it has performance issues with such games as S.T.A.L.K.E.R.: Shadow of Chernobyl , Neverwinter Nights 2 , Gothic 3 and probably some other. At some point those problems are going to be solved, but when – we do not know. So, performance-wise, ATI Radeon HD 2900 XT is a good solution.

In addition, AMD’s partners will include four free games with each Radeon HD 2900 XT graphics board: Half-Life 2: Episode 2 , Day of Defeat: Source , Team Fortress 2 and Portal . This increases overall value of the product to a gamer.

However, with sufficient performance and free games come power consumption of 161W as well as very noisy cooling system (at least, in case of our board) in addition to imperfect drivers, which, for example, do not allow to enable FSAA with edge-detect filter, something, which is projected to provide high image quality amid minimal performance drop. As a consequence of such driver limitation of the Radeon HD 2000, Nvidia’s GeForce 8800 can claim better image quality, as its CSAA works without an issue.


http://www.hothardware.com/Article [...] s_Arrived/

Conclusion:
To summarize, the $399 Radeon HD 2900 XT is a feature rich, DX 10 class graphics card that competes relatively well with a standard GeForce 8800 GTS in many aspects, except power consumption. We wished it was more, but a company can pull only so many Radeon 9700-type launches out of their hat. Over time, the Radeon HD 2900 XT is likely to become a somewhat stronger product due to more finely tuned drivers and continued tweaks made to TSMC's manufacturing process, but for now it is what it is. And who knows what ATI has in store over the next few months. If I was a betting man, I'd say a new high-end GPU manufactured at 65nm will arrive sooner rather than later.



http://anandtech.com/video/default [...] &topicid=3

Conclusion:
Maybe that's a lot to digest, but the bottom line is that R600 is not perfect nor is it a failure. The HD 2900 XT competes well with the 640MB 8800 GTS, though the 8800 GTS 320MB does have a price/performance advantage over both in all but the highest resolutions and AA settings under most current games. There are features we like about the hardware and we would love to see exploited. There is potential there, especially for Xbox 360 ports, to really shine... though console ports are often looked down upon in the PC market, particularly if they come late and offer little new to the platform.

http://techreport.com/articles.x/12458

Conclusion:
Ultimately, though, we can't overlook the fact that AMD built a GPU with 700M transistors that has 320 stream processor ALUs and a 512-bit memory interface, yet it just matches or slightly exceeds the real-world performance of the GeForce 8800 GTS. The GTS is an Nvidia G80 with 25% of its shader core disabled and only 60% of the memory bandwidth of the Radeon HD 2900 XT. That's gotta be a little embarrassing. At the same time, the Radeon HD 2900 XT draws quite a bit more power under load than the full-on GeForce 8800 GTX, and it needs a relatively noisy cooler to keep it in check. If you ask folks at AMD why they didn't aim for the performance crown with a faster version of the R600, they won't say it outright, but they will hint that leakage with this GPU on TSMC's 80HS fab process was a problem. All of the telltale signs are certainly there.

http://www.guru3d.com/article/Videocards/431/

Conclusion:
It is what it is, and the HD 2900 XT performance wise ended up in the lower to mid part of the high-end segment. Sometimes it has a hard time keeping up with a 320MB 8800 GTS, and in other scenarios we see performance close or equal to the GeForce 8800 GTX. Now that would be weird if we all had to pay 600 USD/EUR for it. AMD knows this, and knows it very well. This is why, and honestly this is fantastic, the product is launched at a 399 MSRP. Now I have been talking with a lot of board partners already and here in Europe the product will launch at 350 EUR; and that's just golden.

So we need to leave the uber-power-frag-meister-performance idea behind us and mentally position the product where it is and compare it with the money you have to pay for it. For your mental picture; performance wise I'd say GeForce 8800 GTS 640 MB is a good comparative product (performance wise). Then the opinion will change as you'll receive absolutely a lot of bang for your bucks here. At 350 EUR you'll have a good performing DirectX 10 compatible product, new programmable tessellation unit. It comes with 512 megs of memory. It comes with a state of the art memory controller, offers HDCP straight out of the box, all cards have HDMI connectivity with support for sound and if that alone is not enough, you receive a Valve game-bundle with some very hip titles in there for free. So yeah, you really can't go wrong there.

Here are some existing threads from the past 2 weeks that may already contain the opinions you were looking for.

The Debate - 8800GTS vs 2900XT[url] http://www.tomshardware.com/forum/ [...] gts-2900xt[/url]

8800GTS 640MB vs 2900XT 512MB http://www.tomshardware.com/forum/ [...] 00xt-512mb

GTS 320Mb Vs GTS 640Mb Vs 2900XT http://www.tomshardware.com/forum/ [...] 0mb-2900xt

2900 xt 512mb vs 8800 gts 640mb http://www.tomshardware.com/forum/ [...] 8800-640mb


Here are the 161 google search results for "8800gts vs 2900xt" searching only this site.
http://www.google.ca/search?source [...] ware%2ecom

Someone who gets my sense of humour, thx Maziar.

the 8800's OC like a mofo as well.

thanks a lot for the help guys I will go with the HD 2900XT and I'm almost sure I won't be dissapointed