Thursday, April 19th 2007
Radeon HD 2900 XT has 102.4 GB/s bandwidth
Fudzilla claims that the Radeon HD 2900 manages an impressive 102.4GB/s memory throughput. The card uses a 512 bit memory interface and 1600 MHz GDDR3 memory. The core was clocked at 800 MHz. For comparison, NVIDIA's G80 with its odd 384 bit memory controller scores 86.4 GB/s.
The new HD 2900 XTX with GDDR 4 memory clocked at 2200 MHz, as originally planned, can theoretically have 140.8 GB/s. Both cards have twice or close to twice more memory bandwidth from ATI's Radeon X1950XTX card. This card was limited to a now modest 64GB/s.
Editors note: The NDA on the R600 makes it impossible for anyone to release accurate benchmarks of the R600. In fact, the NDA is so strict, we'll be lucky if the leaked R600 pictures have any accuracy. The theoretical memory bandwidth was attained by simple math: 512bit * 1600MHz / 8bit = 102.4GB/s.
Source:
Fudzilla
The new HD 2900 XTX with GDDR 4 memory clocked at 2200 MHz, as originally planned, can theoretically have 140.8 GB/s. Both cards have twice or close to twice more memory bandwidth from ATI's Radeon X1950XTX card. This card was limited to a now modest 64GB/s.
Editors note: The NDA on the R600 makes it impossible for anyone to release accurate benchmarks of the R600. In fact, the NDA is so strict, we'll be lucky if the leaked R600 pictures have any accuracy. The theoretical memory bandwidth was attained by simple math: 512bit * 1600MHz / 8bit = 102.4GB/s.
25 Comments on Radeon HD 2900 XT has 102.4 GB/s bandwidth
Errr... No.
It's merely calculated (theoretical) bandwidth:
512bit * 1600MHz / 8bit = 102.4GB/s
R600 will be released on May 14th.
512 bit / 8 x 1600 MHz = 102.4GB/s
8 bit = 1 Byte
The same applies to the theoretical bandwidth of the 8800GTX:
384 bit / 8 x 1800 MHz = 86.4 GB/s
Update: I just realized that largon was a tad faster uncovering the story (while I was writing my post). Anyway, I will leave my post here...
Get this in your head all TPU'ers who think the benchmarks and the info are real:
ANYONE WHO OWNS AN R600 IS NOT ENTITLED TO ALLOW ANY INFORMATION ABOUT IT LEAK OUT, NOT EVEN HOW MUCH IT KICKS NVIDIA, THERE IS THE NDA IN PLACE AND IF YOU VOID IT YOU MAY END UP IN PRISON.
Oh yeah don't go like this on another forum:Broken with consequences, its a rare occasion.
BTW TK am i in your club yet ? i posted my x1950pro w/accelero x2 pics yesterday :p
When are these friggin cards coming out.. I want one, I almost bought a 8800 yesterday but decided to stay true... isnt it funny how you like a certain brand so much and yet they do exactly the same thing as the other brand... :D
They sound like nice cards though, hope we don't see to many driver probs..
I'm getting tired of the AMD rumor mill and the delays. There product is always going to be the best but as of late is just slightly better then the one before. I'm talking about AM2 and the x1x50s.
I hope this is the sh#t though:rockout:
:rolleyes:
I hope AMD sticks to their "new" release date and can deliver these cards in volume once they are released, I think were all having fun discussing the possibilities of the new card but are all eager to just see what the damn thing can do already! :toast: