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ATI Radeon X850 XT Platinum

Graphics Processor
R480
Pixel Shaders
16
Vertex Shaders
6
TMUs
16
ROPs
16
Memory Size
256 MB
Memory Type
GDDR3
Bus Width
256 bit
The Radeon X850 XT Platinum was a graphics card by ATI, launched in December 2004. Built on the 130 nm process, and based on the R480 graphics processor, in its R480 XT variant, the card supports DirectX 9.0b. The R480 graphics processor is an average sized chip with a die area of 297 mm² and 160 million transistors. It features 16 pixel shaders and 6 vertex shaders, 16 texture mapping units and 16 ROPs. Due to the lack of unified shaders you will not be able to run recent games at all (which require unified shader/DX10+ support). ATI has placed 256 MB GDDR3 memory on the card, which are connected using a 256-bit memory interface. The GPU is operating at a frequency of 540 MHz, memory is running at 590 MHz.
Being a dual-slot card, the ATI Radeon X850 XT Platinum draws power from 1x 6-pin power connectors, with power draw rated at 67 W maximum. Display outputs include: 1x DVI, 1x VGA, 1x S-Video. Radeon X850 XT Platinum is connected to the rest of the system using a PCI-Express 1.0 x16 interface.

Graphics Processor

GPU Name
R480
GPU Variant
R480 XT
(215RBHAGA11F)
Architecture
R400
Foundry
TSMC
Process Size
130 nm
Transistors
160 million
Die Size
297 mm²

Graphics Card

Release Date
Dec 21st, 2004
Generation
Radeon R400
(X850)
Production
End-of-life
Bus Interface
PCIe 1.0 x16

Clock Speeds

GPU Clock
540 MHz
Memory Clock
590 MHz
1180 MHz effective

Memory

Memory Size
256 MB
Memory Type
GDDR3
Memory Bus
256 bit
Bandwidth
37.76 GB/s

Render Config

Pixel Shaders
16
Vertex Shaders
6
TMUs
16
ROPs
16

Theoretical Performance

Pixel Rate
8.640 GPixel/s
Vertex Rate
810.0 MVertices/s
Texture Rate
8.640 GTexel/s

Board Design

Slot Width
Dual-slot
TDP
67 W
Outputs
1x DVI
1x VGA
1x S-Video
Power Connectors
1x 6-pin

Graphics Features

DirectX
9.0b
OpenGL
2.0
OpenCL
N/A
Vulkan
N/A
Pixel Shader
2.0b
Vertex Shader
2.0b

R480 GPU Notes

Graphics/Compute: GFX2
Video Shader HD
Programmable pixel&vertex pipelines

Retail boards based on this design (2)

Name GPU Clock Memory Clock Other Changes
Sapphire Blizzard X850 XT Platinum Edition 540 MHz 590 MHz 2x DVI 1x S-Video
Sapphire Blizzard X850 XT Platinum Edition 540 MHz 590 MHz 2x DVI 1x S-Video