R600 to Have 512bit bus, 1gig of 2.5ghz gddr4...

[walterman]

512bit bus @ 2.5 GHz :drooling:

That's the time for a real upgrade !

2560x1600 BR2 :drooling:

[coldpower27]

From what I remember R600 is only supposed to have 16 ROP's still or something, so I dunno.

Regarding a 512Bit External Bus I will believe it when I see it.

[Dazz]

Found this intresting from beyond 3D.

Speaking at yesterday's AMD Financial Analysts Day, Executive Vice President of Visual and Media Businesses, Dave Orton, appeared to throw down the performance gauntlet in favor of AMD's upcoming R600 GPU. Having had over a month to study NVIDIA's G80, Orton did not seem the least bit intimidated. In a slide entitled "R600: Why we lead in graphics", Orton promised that even if the name of the company had changed, that the commitment to GPU performance leadership had not. He promised a "take no prisoners" approach to performance leadership for AMD's new GPU.

More interestingly, in his verbal remarks Orton reported (at roughly the 1:22:30 mark of the webcast) that one of R600's key advantages would be "new levels of memory bandwidth to the graphics subsystem, and bandwidth is critical to graphics performance." As all graphics geeks know, AMD pioneered the move to GDDR4 memory with the Radeon X1950 XTX, which gave them a temporary advantage in bandwidth. However, in the period since NVIDIA has released the 384-bit GeForce 8800 GTX, whose memory bandwidth crushes the X1950 XTX by 86.4GB/s to 64.0GB/s. It is impossible that AMD could regain a significant enough advantage in bandwidth to be cited by Orton as a major competitive advantage without following NVIDIA north of the 256-bit bus that has been a mainstay of the ATI/AMD high-end products since 2002's Radeon 9700 Pro.

R600 will therefore feature a 512-bit external memory bus, likely using 1.2GHz GDDR4 for ~153GB/sec from memory pool to chip, to back up the smack AMD's Executive Vice President laid down.

In other tidbits, Orton also vowed to be first to the 65nm technology process, but did not disclose which product he had in mind for the honor, nor even product type, GPU or chipset. Our graphics-oriented notes (and a few selected slides) on the rest of the conference are included inside, if you dare to take the red pill. Bold statements can the R600 really be that powerful? So it's not 0.80m like people said which dispite the size of the core, it's freaking huge dispite the shrink!!

[SH64]

Found this intresting from beyond 3D.

Bold statements can the R600 really be that powerful? So it's not 0.80m like people said which dispite the size of the core, it's freaking huge dispite the shrink!!
If these specs are indeed for the R600 (65nm , 512-bit bus , 1.2Ghz GDDR4) then we are speaking about a next-next gen chip or a GPU that will counter the GF8 series high-end's refresh! :D

[Richteralan]

If they really use 512bit external memory bus,

I'm curious to see the cost in making multi-layer PCBs that work with 512bit memory bus.

You cannot pump up memory bus without modify GPU pins and PCB. More layers needed for more memory bus width.

[nrdstrm]

It will be interesting for sure...But even if the R600 takes the performance crown from my beloved 8800GTX, I'll likely not buy a new card until I see BOTH refreshes (ATI/NVIDIA)...Then I'll make my final choice for this generation...R600 does sound promising though...I'm just wondering if the delays were due to seeing what the 8800 could deliver...

[walterman]

Orton reported (at roughly the 1:22:30 mark of the webcast) that one of R600's key advantages would be "new levels of memory bandwidth to the graphics subsystem, and bandwidth is critical to graphics performance."

That's exactly what i wanted to hear !

512bit bus :drooling:

[Dazz]

Well they did say the bandwith, was 136GB/sec which = 2400MHz DDR4 on a 512bit bus.