AMD · Radeon

AMD RADEON X800 GTO

The AMD RADEON X800 GTO is a graphics card released on December 6, 2005. It has 256 MB of GDDR3 memory, 31.4 GB/s of memory bandwidth and a boost clock of 400 MHz. It scores 115 in the PassMark G3D benchmark. It supports DirectX 9.0b and OpenGL 2.

R420 (loki)

5/10 key specs recorded · 20 facts

Depth: 28 recorded fields, 1 PassMark workload

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

400 MHz base

Board power

n/a

Performance

The AMD RADEON X800 GTO scores 115 in the PassMark G3D benchmark, higher than 18.5% of the 2,658 GPUs benchmarked (PassMark rank #2,361), measured across 31 submitted results. Its PassMark G2D score is 162.

PassMark G3D Mark

115

Rank #2,361
Faster than 18.5% of 2,658 GPUs
31 samples

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

PassMark workload tests

DirectX 9 4 fps

reference: fastest recorded 526 fps · faster than 5.1% of 1,675 GPUs

Averages of PassMark PerformanceTest submissions; frames/sec are PassMark test-scene rates, not game FPS. Tests PassMark does not report for this card are omitted. PassMark listing

In the PassMark workload tests the AMD RADEON X800 GTO averages DirectX 9 4 fps, across 31 submitted results. Frames per second are PassMark test-scene rates, not game frame rates.

As stated by PassMark

Category Desktop

Bus interface AGP 8x

Max memory 256 MB

Core clock 400 MHz

Memory clock 980 MHz

DirectX 9.0b

OpenGL 2

First benchmarked 2010-11-23

Samples 31

PassMark listing (collected 2026-10-01)

PassMark's own listing for the AMD RADEON X800 GTO states the AGP 8x interface, up to 256 MB of memory, a core clock of 400 MHz, DirectX 9.0b and OpenGL 2, first benchmarked on 2010-11-23. These are PassMark's figures, shown separately from the specification tables above.

Graphics processor

Architecture Not recorded

Codename R420 (loki)

Chip Not recorded

Process node Not recorded

Transistors Not recorded

Die size Not recorded

The AMD RADEON X800 GTO uses the R420 (loki) 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 GTO 12 texture mapping units and 16 render output units.

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

Clock speeds

Base clock 400 MHz

Boost clock Not recorded

Game clock Not recorded

Memory clock Not recorded

Effective memory clock Not recorded

The AMD RADEON X800 GTO runs at a base clock of 400 MHz.

Memory

Size 256 MB

Type GDDR3

Bus width Not recorded

Bandwidth 31.4 GB/s

The AMD RADEON X800 GTO is equipped with 256 MB of GDDR3 memory and delivers 31.4 GB/s of memory bandwidth.

Board and power

The AMD RADEON X800 GTO 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 December 6, 2005

Launch price Not recorded

Status Not recorded

Form factor Not recorded

Segment Desktop

Series Radeon

The AMD RADEON X800 GTO was released on December 6, 2005.

Benchmarks

PassMark G3D 115

PassMark G2D 162

Rank #2,361

Samples 31

Graphics and compute APIs

The AMD RADEON X800 GTO 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 GTO. Feex has no recorded Vulkan version for the AMD RADEON X800 GTO. Feex has no recorded OpenCL version for the AMD RADEON X800 GTO.

Naming and aliases

The AMD RADEON X800 GTO is also known by other names: PassMark also lists it as RADEON X800 GTO, Radeon X800 GTO (Omega 3.8.442), RADEON X800 GTO Secondary and RADEON X800 GTO (Microsoft Corporation - WDDM).

Other names (PassMark) RADEON X800 GTO; Radeon X800 GTO (Omega 3.8.442); RADEON X800 GTO Secondary; RADEON X800 GTO (Microsoft Corporation - WDDM)