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ATI FireGL X3-256

R420
Graphics Processor
12
Pixel Shaders
6
Vertex Shaders
12
TMUs
12
ROPs
256 MB
Memory Size
GDDR3
Memory Type
256 bit
Bus Width
ATI FireGL X3-256 Photo ATI R420 Photo
The FireGL X3-256 was a enthusiast-class professional graphics card by ATI, launched in August 2004. Built on the 130 nm process, and based on the R420 graphics processor, in its R420 GL 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 12 pixel shaders and 6 vertex shaders, 12 texture mapping units and 12 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 491 MHz, memory is running at 454 MHz.
Being a single-slot card, the ATI FireGL X3-256 draws power from 1x Molex power connectors, with power draw rated at 57 W maximum. Display outputs include: 2x DVI, 1x S-Video. FireGL X3-256 is connected to the rest of the system using an AGP 8x interface. Its price at launch was 1099 US Dollars.

Graphics Processor

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

Graphics Card

Release Date
Aug 3rd, 2004
Generation
FireGL
(X)
Production
End-of-life
Launch Price
1,099 USD
Bus Interface
AGP 8x

Clock Speeds

GPU Clock
491 MHz
Memory Clock
454 MHz
908 MHz effective

Memory

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

Render Config

Pixel Shaders
12
Vertex Shaders
6
TMUs
12
ROPs
12

Theoretical Performance

Pixel Rate
5.892 GPixel/s
Vertex Rate
736.5 MVertices/s
Texture Rate
5.892 GTexel/s

Board Design

Slot Width
Single-slot
TDP
57 W
Outputs
2x DVI
1x S-Video
Power Connectors
1x Molex
Board Number
A301

Graphics Features

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

R420 GPU Notes

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