Official HD 2900 Discussion Thread

[MAS]

Can you at least say,without any bias,that this'll be the card to get,over the 8800GTX?Or are'nt you allowed?

see http://r800.blogspot.com/2007/04/rad...2900xt_28.html
it looks like truth

[Kinc]

see http://r800.blogspot.com/2007/04/rad...2900xt_28.html
it looks like truth

All tests with benchmarks you see on 2900XT are pretty much useless since you do not know what driver they are using. There are various problems with the leaked one that I see some are using to post benchmarks.

[DeathReborn]

All tests with benchmarks you see on 2900XT are pretty much useless since you do not know what driver they are using. There are various problems with the leaked one that I see some are using to post benchmarks.

Not only that but no info on the 8800GTS used & that site is about as reliable as a bucket with holes in it.

Congratulation! AMD ATI and all perseverance ATI fans in CHIPHELL and around the globe.

That's the sort of thing you'll find on that blog. Can we not ban the posting of these piece of crap fanboy blogs?

[ahmad]

That's the sort of thing you'll find on that blog. Can we not ban the posting of these piece of crap fanboy blogs?

First of all, those are official benchmarks released by ATI. Not that they are worth anything to me or you.

Second of all, they used 8xAA/16xAF and adaptive AA. ATI's 8x AA implementation is different from nvidias, so Nvidia cards take a larger hit from that alone. ATI always had more efficient AA algorithms, so its no surprise its wins in most benchmarks.

Third point is, its compared to the 8800GTS. 8800GTS is not the 8800GTX so no great achievement there from ATI.

But like Kinc said, too many variables for us to take anyone's word for anything...

[ahmad]

http://www.fudzilla.com/index.php?op...d=728&Itemid=1

R600 has 16 TMU's while G80 has 32


R600 has 16 TMU's while G80 has 32
Written by Fuad Abazovic
Saturday, 28 April 2007 10:08



That is why it stays behind

Here is the one of the key reasons why R600 marchitecture falls behind the G80 GTX version. While Geforce 8800 GTX or G80GTX has 32 Texture Memory Units (TMUs) Radeon HD 2900 XT has 16 only.


TMUs are responsible for getting the textures in your games and more you have the faster you can handle the texture work.

Still, the Radeon HD 2900 XT at 750 MHz core is about 30 percent faster in raw clock speed from Geforce 8800 GTX at 575 MHz and finishes the texture cycle some 30 percent faster then Nvidia.

In spite of that this is not really a fortunate solution as Nvidia has twice as much texture memory units. The only hope is that ATI has more effective TMUs, but this is one big marchitectural disadvantage over the G80 marchitecture.

So fuad gives us hope that this still maybe a g80 killer.....