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ATI Radeon X800 XT AGP

Graphics Processor
R420
Pixel Shaders
16
Vertex Shaders
6
TMUs
16
ROPs
16
Memory Size
256 MB
Memory Type
GDDR3
Bus Width
256 bit
The Radeon X800 XT AGP was a graphics card by ATI, launched in March 2004. Built on the 130 nm process, and based on the R420 graphics processor, in its R420 XT variant, the card supports DirectX 9.0b. The R420 graphics processor is an average sized chip with a die area of 281 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 500 MHz, memory is running at 500 MHz.
Being a single-slot card, the ATI Radeon X800 XT AGP draws power from 1x Molex power connectors, with power draw rated at 54 W maximum. Display outputs include: 1x DVI, 1x VGA, 1x S-Video. Radeon X800 XT AGP is connected to the rest of the system using an AGP 8x interface.

Graphics Processor

GPU Name
R420
GPU Variant
R420 XT
Architecture
R400
Foundry
TSMC
Process Size
130 nm
Transistors
160 million
Die Size
281 mm²

Graphics Card

Release Date
Mar 1st, 2004
Generation
Radeon R400 AGP
(X800)
Production
End-of-life
Bus Interface
AGP 8x
Reviews
226 in our database

Clock Speeds

GPU Clock
500 MHz
Memory Clock
500 MHz
1000 MHz effective

Memory

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

Render Config

Pixel Shaders
16
Vertex Shaders
6
TMUs
16
ROPs
16

Theoretical Performance

Pixel Rate
8.000 GPixel/s
Vertex Rate
750.0 MVertices/s
Texture Rate
8.000 GTexel/s

Board Design

Slot Width
Single-slot
TDP
54 W
Suggested PSU
350 W
Outputs
1x DVI
1x VGA
1x S-Video
Power Connectors
1x Molex

Graphics Features

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

R420 GPU Notes

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