ATI releases more info on XENOS GPU (Xbox360 graphics)


R

Radeon350

http://www.ati.com/developer/eg05-xenos-doggett-final.pdf


Notes:

The Architect of the Xenos is ATI's Michael Dogett

- Features of System Architecture is New Rendering Performance and new
GPU Architecture

- The Features are Unified Shader, Memory Export, Texture/Vertex Fetch,
HDR Rendering, Displaced Subdivision Surfaces

- Features of the Daughter die (EDRAM) is Spix/Clix, 4xMSAA, Stencil
and Z Test Alpha Blending which is done with the 10 MB EDRAM

- The Rendering Performances are 1) Daughter to GPU: 8 pixels/clk that
means 32 BPP Color and 4 Samples Z lossless compression, 16 pixels/clk
that means 4 Samples Z Lossless Compression and 2) Alpha and Z Logic to
EDRAM interface: 256 GB/second, 32 Samples x 32 Bit color, 24 Bit Z and
8 bit stencil as well as Double Z which means 64 Samples x 24 bit z and
8 bit Stencil.

- Unified Shader means: A revolutionary Step in Graphics hardware, one
Hardware design which performs both Vertex and Pixels and has Vertex
Processing Power. Previous design was First Vertex was processed, then
Pixels were Processed, Now both will be Processed at the same time thus
increasing efficiency. It has GPU based vertex and pixel load balancing
which means between vertex and pixel resource usage. It is Based on
Directx 9, Shader Model 3.0+ .

- Memory Export means: Shader Output to computed address, Virtualise
Shader Process by Multipass, Shader Debug and Scatter write. The Memory
Export is from the GPU to the Unified 512 MB GDDR3 Ram. Randomly update
data structures from Vertex or Pixel Shader which means Ray tracing
acceleration structures, Physical simulation - GPGPU and Enabling
exploration for the future


(see the slides in the PDF at the top)
 
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B

Bikini-Whacks

http://www.ati.com/developer/eg05-xenos-doggett-final.pdf


Notes:

The Architect of the Xenos is ATI's Michael Dogett

- Features of System Architecture is New Rendering Performance and new
GPU Architecture

- The Features are Unified Shader, Memory Export, Texture/Vertex Fetch,
HDR Rendering, Displaced Subdivision Surfaces

- Features of the Daughter die (EDRAM) is Spix/Clix, 4xMSAA, Stencil
and Z Test Alpha Blending which is done with the 10 MB EDRAM

- The Rendering Performances are 1) Daughter to GPU: 8 pixels/clk that
means 32 BPP Color and 4 Samples Z lossless compression, 16 pixels/clk
that means 4 Samples Z Lossless Compression and 2) Alpha and Z Logic to
EDRAM interface: 256 GB/second, 32 Samples x 32 Bit color, 24 Bit Z and
8 bit stencil as well as Double Z which means 64 Samples x 24 bit z and
8 bit Stencil.

- Unified Shader means: A revolutionary Step in Graphics hardware, one
Hardware design which performs both Vertex and Pixels and has Vertex
Processing Power. Previous design was First Vertex was processed, then
Pixels were Processed, Now both will be Processed at the same time thus
increasing efficiency. It has GPU based vertex and pixel load balancing
which means between vertex and pixel resource usage. It is Based on
Directx 9, Shader Model 3.0+ .

- Memory Export means: Shader Output to computed address, Virtualise
Shader Process by Multipass, Shader Debug and Scatter write. The Memory
Export is from the GPU to the Unified 512 MB GDDR3 Ram. Randomly update
data structures from Vertex or Pixel Shader which means Ray tracing
acceleration structures, Physical simulation - GPGPU and Enabling
exploration for the future


(see the slides in the PDF at the top)
A tough one for the Computeractive reader.
--





If you feel you can't go on,
Call Someone Now
http://tinyurl.com/8duvg
 
M

Mark E. Smith

---chop---
*YAWNS*

--
XBL Gamertag: ScoopeX
Currently Playing: Halo 2
Be Unlimited 24mb/1mb adsl 2 BB coming december 2005
Current CD now playing - Hed Kandi - Es Vive & Base Bar Ibiza 2005


24MB/1MB ADSL coming december 2005? That is quite sad....move here to
Japan...ahem 100MB fiber both ways and dedicated....$50US/month. =)
 
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