Early AMD ATI "R600" Specs, Benchmarks Leaked
Anh Tuan Huynh
December 30, 2006 5:27 PM
comment(s) - last by
Details of AMD's next generation Radeon hit the web
has leaked benchmarks and specifications of AMD’s upcoming ATI
graphics processor. The upcoming graphics processor is expected to launch in January 2007 with an expected revision arriving in March 2007. These early specifications and launch dates line up with what
has already published and are present on ATI internal roadmaps as of workweek 49.
Preliminary specifications from
of the ATI
are as follows:
64 4-Way SIMD Unified Shaders, 128 Shader Operations/Cycle
32 TMUs, 16 ROPs
512 bit Memory Controller, full 32 bit per chip connection
GDDR3 at 900 MHz clock speed (January)
GDDR4 at 1.1 GHz clock speed (March, revised edition)
Total bandwidth 115 GB/s on GDDR3
Total bandwidth 140 GB/s on GDDR4
Consumer memory support 1024 MB
DX10 full compatibility with draft DX10.1 vendor-specific cap removal (unified programming)
32FP [sic] internal processing
Hardware support for GPU clustering (any x^2 [sic] number, not limited to Dual or Quad-GPU)
Hardware DVI-HDCP support (High Definition Copy Protocol)
Hardware Quad-DVI output support (Limited to workstation editions)
230W TDP PCI-SIG compliant
This time around it appears AMD is going for a different approach by equipping the ATI
with less unified shaders than NVIDIA’s recently launched GeForce 8800 GTX. However, the unified shaders found on the ATI
can complete more shader operations per clock cycle.
ATI's interal guidance states the R600 will have 320 stream processors at launch; 64 4-way unified shaders only accounts for 256 of these stream processors.
claims AMD is expected to equip the ATI
with GDDR3 and GDDR4 memory with the GDDR3 endowed model launching in January. Memory clocks have been set at 900 MHz for GDDR3 models and 1.1 GHz for GDDR4 models. As recent as two weeks ago, ATI roadmaps had said this GDDR3 launch was canceled. These same roadmaps claim the production date for R600 is February 2007, which would be after a January 22nd launch.
Memory bandwidth of the ATI
is significantly higher than NVIDIA’s GeForce 8800-series. Total memory bandwidth varies from 115GB/s on GDDR3 equipped models to 140GB/s on GDDR4 equipped models.
Other notable hardware features include hardware support for quad DVI outputs, but utilizing all four outputs are limited to FireGL workstation edition cards.
There’s also integrated support for multi-GPU clustering technologies such as CrossFire too. The implementation on the ATI
allows any amount of
GPUs to operate together in powers of two. Expect multi-GPU configurations with greater than two GPUs to only be available for the workstation markets though.
The published results are very promising with AMD’s ATI
beating out NVIDIA’s GeForce 8800 GTX in most benchmarks. The performance delta varies from 8% up to 42% depending on the game benchmark.
contacted the site owner to get verification of the benchmarks, the owner replied that the benchmark screenshots could not be published due to origin-specific markers that would trace the card back to its source -- the author mentioned the card is part of the Microsoft Vista driver certification program.
's comments seem a little too pro-ATI, don't be too surprised. When asked if the site was affiliated in any way to ATI or AMD, the owner replied to
with the statement that "two staff members of ours are directly affiliated with AMD's business [development] division."
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RE: and does anyone see anything wrong about all this?
1/5/2007 2:14:38 PM
Actually that's a myth, probably created by american officials to avoid their population feeling bad about having an inferior electrical system. ;)
The real reason the US got stuck with 110V is, as you mentioned, the cost of converting the whole system and the early prevalence of electrical appliances in the US. A short sighted decision in my opinion, because it's been costing you ever since. Maybe also part of the reason for the much higher power use in the States compared to Europe.
Europe uses 230-240V like Australia.
I've gotten shocked by our mains (and so has lots of people I know) and yes it hurts, but it's not going to fry you. Both 110V and 240V are dangerous if you get shocked from arm to arm and the difference in danger is negliable. Skin resistance and mains voltage determines the amount of amps you get, not the total amps limit on the mains. So you might get slightly more amps with a 240V hit than 110V hit but since both can be lethal if you behave stupidly the difference has no importance. Another interesting phenomenon is that 110V has a higher tendency of locking your grip to the wire whereas 240V will cause a powerful muscle spasm that throws your hand off the electrical source.
What is important though is the huge difference in efficiency between 110V and 240V. Even more with the utility lines we use in Europe (3 phase 380V) for stoves, dryers etc.
Also ground fault interrupters that shut off power when it detects even tiny leaks to ground is mandatory in the EU (or at least here in Denmark).
This means that electrical fires (and some types of electrical shocks) caused by shorts and faulty insulation is much reduced. A cause of death and injury far far higher than from direct mains electrical shock.
To get back on subject, we enjoy having 2200-2400W available from each fuse group with only 10 amp fuses and 2860-3120W with 13 amp installations (which are the most common here now). :)
RE: and does anyone see anything wrong about all this?
1/8/2007 10:48:54 AM
The voltage has little to do with the muscle spasms. It is the Frequency of the voltage, the higher the frequency the more often the convulsions. The difference between 50 and 60 Hz is negligible. However, the lower the Hz the greater the tendency of the voltage to cut across the center of the conductor to get to the other side; therefore, the greater the chance of frying the ventricles of your heart. We "Americans" should be thanked. AC was rejected by everyone else (Hell, Tesla tried to give it away for free). Not only did we naturalize (make him a citizen) it's inventor and give him a chance, we pioneered AC and made it available to the world. Australia has only contributed the 'Roo burger and Crocodile Dundee.
"Google fired a shot heard 'round the world, and now a second American company has answered the call to defend the rights of the Chinese people." -- Rep. Christopher H. Smith (R-N.J.)
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