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ATI Radeon X850 XT

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 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 520 MHz, memory is running at 540 MHz.
Being a dual-slot card, the ATI Radeon X850 XT draws power from 1x 6-pin power connectors, with power draw rated at 69 W maximum. Display outputs include: 2x DVI, 1x S-Video. Radeon X850 XT 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 1st, 2004
Generation
Radeon R400 PCIe
(X850)
Production
End-of-life
Bus Interface
PCIe 1.0 x16
Reviews
58 in our database

Clock Speeds

GPU Clock
520 MHz
Memory Clock
540 MHz
1080 MHz effective

Memory

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

Render Config

Pixel Shaders
16
Vertex Shaders
6
TMUs
16
ROPs
16

Theoretical Performance

Pixel Rate
8.320 GPixel/s
Vertex Rate
780.0 MVertices/s
Texture Rate
8.320 GTexel/s

Board Design

Slot Width
Dual-slot
TDP
69 W
Suggested PSU
350 W
Outputs
2x DVI
1x S-Video
Power Connectors
1x 6-pin

Graphics Features

DirectX
9.0b (9_2)
OpenGL
2.0
OpenCL
N/A
Vulkan
N/A
Pixel Shader
2.0b
Vertex Shader
2.0b

R480 GPU Notes

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

Retail boards based on this design (1)

Name GPU Clock Memory Clock Other Changes
HIS X850 XT IceQ II Turbo 540 MHz 590 MHz