Official HD 2900 Discussion Thread

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Radeon HD 2900XT


http://aycu17.webshots.com/image/151...5869153_rs.jpg

http://aycu07.webshots.com/image/164...4250356_rs.jpg

http://aycu28.webshots.com/image/139...9974738_rs.jpg

http://aycu31.webshots.com/image/156...8063797_rs.jpg

http://aycu16.webshots.com/image/171...7714818_rs.jpg

http://aycu16.webshots.com/image/171...3437993_rs.jpg


Radeon HD 2900XT’nin Teknik Özellikleri:

- Grafik İşlemci Hızı: 757MHz
- Bellek Hızı: 1656MHz

- Bellek Veri Yolu: 512-bit
- Bellek Miktarı: 512MB
- Bellek Tipi: GDDR3

- Toplam Transistör Sayısı: 720 Milyon - 8800GTX’de ise yaklaşık 675 Milyon
- ROPs ve TMUs: 16 ve 32 adet
- Ramdac: 2×400MHz
- Bellek Bant Genişliği: 105.98(GB/sn)
- Unified Shader İş Hattı: 128
- DirectX ve OpenGL: DirectX 10 / Shader Model 4.0 ile OpenGL 2.0 desteği
- FSAA: Smoothvision HD + Adaptive AA
- HDTV, HDMI ve HDCP Durumu: Var, HDMI 1.2 uyumu, Var (HDMI Modları: 480p, 720p, 1080i)
- PCB: 12 Katmanlı

http://www.fx57.net/?p=637

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regards

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Originally Posted by mascaras

regards

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32 TMUs. Hoo-rah.

the more is see pics of the card,teh sexier it seems lol:)

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Originally Posted by turtle

32 TMUs. Hoo-rah.

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you cant compare with the 8800GTX 64 TMU´s , the X2900 TMU´s run with higher clocks

the x1900 also had less TMUs and in complex shader intensive games they had advantage , and the ratio in R600 is even higher , with x1900 the ratio was 3:1 , now with R600 the ratio is 4:1





regards

Yup, I'm getting one.

What is the bad news ? only 16 rop ? ... a french friend told me AMD said at Tunis a bad news about R600.

i belived it was only 16TMU ... but ... dammm :/

So whats the new word on the street have they confirmed a definate launch date seeing how they don't do soft launches...LOL ...the part about that is that this card has been publicaly promised since Febuary good thing they don't do soft launches eh?

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Originally Posted by madcho

What is the bad news ? only 16 rop ? ... a french friend told me AMD said at Tunis a bad news about R600.

i belived it was only 16TMU ... but ... dammm :/

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oh please every Graphics card from ATi between the 9700 and the 1950xtx used 16 because it is more than they need.

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Originally Posted by nn_step

oh please every Graphics card from ATi between the 9700 and the 1950xtx used 16 because it is more than they need.

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Well its surprises me, but then again is doesn't as texture quality in games has progressed far far slower than it should have.

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Originally Posted by Dainas

Well its surprises me, but then again is doesn't as texture quality in games has progressed far far slower than it should have.

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well what do you expect? a white screen doesn't exactly require alot of processing. When you want to do something fancy like shadows or reflections or things like hair. you don't use the texture unit like you would use shader or geometry units

I would want super high resolution textures in the places a shader so far can't keep from looking bland, but the real reason thats been held back over the years is developers don't want their games getting too fat.

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Originally Posted by mascaras

you cant compare with the 8800GTX 64 TMU´s , the X2900 TMU´s run with higher clocks regards

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Sure I can. Watch me (assuming that is correct):

8800gtx
575 x 64 = 36.8 GT/s

8800GTS
500 x 48 = 24.0 GT/s

HD2900XT:
757 x 32 = 24.2 GT/s

Looking at TMUs, and overclocking, the XT and GTS look comparible. GTS's get to what, ~660 when overclocking? That would take a R600 at damn near 1ghz (990mhz).

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Originally Posted by turtle

Sure I can. Watch me:

8800gtx
575 x 64 = 36.8 GT/s

8800GTS
500 x 48 = 24.0 GT/s

HD2800XT:
757 x 32 = 24.2 GT/s

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Holy crap, there is a 2800xt version coming :eek: .





Just playing :D

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Originally Posted by turtle

Sure I can. Watch me:

8800gtx
575 x 64 = 36.8 GT/s

8800GTS
500 x 48 = 24.0 GT/s

HD2800XT:
757 x 32 = 24.2 GT/s

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umm that math isn't exactly correct because the Shaders/Geometry units of ATi aren't directly 1:1 comparable to nVidia's equivalent units
By the same token I could say 4 Pentium Pros are better than a single core conroe :rolleyes:

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Originally Posted by 96redformula7

Holy crap, there is a 2800xt version coming :eek: .

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Whoopsy. :p:

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Originally Posted by nn_step

umm that math isn't exactly correct because the Shaders/Geometry units of ATi aren't directly 1:1 comparable to nVidia's equivalent units
By the same token I could say 4 Pentium Pros are better than a single core conroe :rolleyes:

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I know, I know...Theoretically speaking. The point is, there is definitely a gap between the GTX and the XT, and I doubt the efficiency is going to go in the way of the Radeon. Even if it does, could it close a 1/3 gap? Don't get me wrong, hopefully it does.

I just keep asking myself why ATi keeps screwing themselves over when it comes to texture units.

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Originally Posted by turtle

I just keep asking myself why ATi keeps screwing themselves over when it comes to texture units.

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I'll tell you why, because there has yet to be a SINGLE GAME ON EARTH OR DEVELOPMENT that has made full use of a 9700pro's texture units. So why expand something that doesn't need improvement?

Relax, you'll see it soon. :D

And I'm representing 99.9% of world population so you gunna pay £1057 for an G80Ultra for me? :p: By conversion that's $2109.96 of rip. :nono:

No I didn't think so. The BFG G80GTX cards that are used in one of my uncles work place system, oc'd and wc'd run at 655/1500/2150 anyway, so G80Ultra isn't nothing to compare with a $400 product, coming with bags of accessories which in effect make it $300 at the very least.

I'm just curious about the sound device details and the crossfire performance compared to a reference G80GTX SLI now. I know most details by now, just need a fuller picture.

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Originally Posted by LOE

dunno bout the 2800XT

but there are some rumors on 2900PRO, price should be close to the most expensive 2600 but will feature 256bit MC

I really was hoping for midrange to get official 256bit bus now when high end is 512 bit...

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Yeah, RV670. :)

Since the XL exists (apparently), and the high-end part is $399 MSRP, it makes you wonder where the XL and PRO will fall price-wise. At least one of them will have to be a tasty deal.

As for texture units...Of course R300-r520 didn't use the TMUs, because it's a 1:1 ratio...and thank goodness they moved away from that because you're right, they would never be used in today's games. I was under the impression the ratio is somewhere around 4-5:1 in heavy arithmetic games, much less for current and older games or newer games that are more texture-heavy, making 32 still seem short when paired with 320 MADDs (10:1), especially compared to G80 which is 256:64 and 192:48 (4:1). Also, ATi has said in the past it would offer more texture units when the bandwidth became feasible to do so. If 2ghz+ on a 512-bit bus is not bandwidth-feasible, than I'd like to know what is.

That being said, the future is HEADING in the 10:1 direction, and maybe we'll get there in R600's lifetime using DX10, but we sure as heck are not there yet, hence it could easily become a bottleneck.

UNFINISHED R600 REVIEW @ VR-ZONE

http://img145.imageshack.us/img145/3...oner600cp0.jpg

roflol,look at the date from that review:It states:January 1st,1970:)

Page 19th will be very interesting ;)

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UnReal Overclocking!

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:p:

From the screenshots from techPowerUp regarding the 2900XT on HIS.


Why in the second screenshot does it have "Crossfire cable x 1" in cable/adaptor bundled?

Does this mean like the cable dongle thing or a bridge?

Should set a new fps record in CoH...

Perkam

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Originally Posted by Lightman

Page 19th will be very interesting ;)
:p:

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my heart literally jumped when I read about that page. I am waiting for this review in great angst.