AMD · Radeon

AMD RADEON X800 PRO

The AMD RADEON X800 PRO is a graphics card released on May 5, 2004. It has 256 MB of GDDR3 memory, 28.8 GB/s of memory bandwidth and a boost clock of 475 MHz. It scores 65 in the PassMark G3D benchmark. It supports DirectX 9.0b and OpenGL 2.

R423 (thor)

5/10 key specs recorded · 21 facts

Depth: 27 recorded fields

Specification data last verified October 1, 2026 against PassMark Videocard Benchmark and Wikipedia GPU list tables (wikigrid-2026-09). Coverage: 5 of 10 tracked specifications recorded.

PassMark Videocard Benchmark Wikipedia GPU list tables (wikigrid-2026-09)PassMark Videocard Benchmark

Shading units

n/a

Memory

256 MB

GDDR3

Boost clock

n/a

475 MHz base

Board power

n/a

Performance

The AMD RADEON X800 PRO scores 65 in the PassMark G3D benchmark, higher than 13.2% of the 2,658 GPUs benchmarked (PassMark rank #2,505), measured across 8 submitted results. Its PassMark G2D score is 190.

PassMark G3D Mark

Rank #2,505
Faster than 13.2% of 2,658 GPUs
8 samples

0relative to the fastest GPU on record (41,928)

As stated by PassMark

Category Desktop

Bus interface AGP 8x

Max memory 256 MB

Core clock 475 MHz

Memory clock 900 MHz

DirectX 9.0b

OpenGL 2

First benchmarked 2009-06-02

Samples 8

PassMark listing (collected 2026-10-01)

PassMark's own listing for the AMD RADEON X800 PRO states the AGP 8x interface, up to 256 MB of memory, a core clock of 475 MHz, DirectX 9.0b and OpenGL 2, first benchmarked on 2009-06-02. These are PassMark's figures, shown separately from the specification tables above.

Not to be confused with

This page covers the AMD RADEON X800 PRO specifically. It is a different product from AMD RADEON X800 PRO/GTO, which have their own specifications. Check the exact model name before comparing figures.

Graphics processor

Architecture Not recorded

Codename R423 (thor)

Chip Not recorded

Process node Not recorded

Transistors Not recorded

Die size Not recorded

The AMD RADEON X800 PRO uses the R423 (thor) graphics processor.

Shader configuration

Shading units Not recorded

Compute units Not recorded

Streaming multiprocessors Not recorded

Execution units Not recorded

Texture units (TMUs) 12

Render output units (ROPs) 16

Ray tracing cores Not recorded

Tensor / AI cores Not recorded

XMX engines Not recorded

Infinity cache Not recorded

The AMD RADEON X800 PRO 12 texture mapping units and 16 render output units.

The AMD RADEON X800 PRO does not use XMX engines; those are specific to Intel Arc graphics.

Clock speeds

Base clock 475 MHz

Boost clock Not recorded

Game clock Not recorded

Memory clock Not recorded

Effective memory clock Not recorded

The AMD RADEON X800 PRO runs at a base clock of 475 MHz.

Memory

Size 256 MB

Type GDDR3

Bus width Not recorded

Bandwidth 28.8 GB/s

The AMD RADEON X800 PRO is equipped with 256 MB of GDDR3 memory and delivers 28.8 GB/s of memory bandwidth.

Board and power

The AMD RADEON X800 PRO it connects over AGP 8x.

Board power (TDP) Not recorded

Total board power Not recorded

Suggested PSU Not recorded

Power connectors Not recorded

Slot width Not recorded

Length Not recorded

Width Not recorded

Height Not recorded

Cooler Not recorded

Max temperature Not recorded

Bus interface AGP 8x

Market

Launched May 5, 2004

Launch price Not recorded

Status Not recorded

Form factor Not recorded

Segment Desktop

Series Radeon

The AMD RADEON X800 PRO was released on May 5, 2004.

Benchmarks

PassMark G3D 65

PassMark G2D 190

Rank #2,505

Samples 8

Graphics and compute APIs

The AMD RADEON X800 PRO supports DirectX 9.0b and OpenGL 2.

DirectX 9.0b (stated by PassMark)

OpenGL 2 (stated by PassMark)

CUDA is an NVIDIA technology and does not apply to the AMD RADEON X800 PRO. Feex has no recorded Vulkan version for the AMD RADEON X800 PRO. Feex has no recorded OpenCL version for the AMD RADEON X800 PRO.