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ATI Mobility Radeon X1900

Graphics Processor
Pixel Shaders
Vertex Shaders
256 MB
Memory Size
Memory Type
256 bit
Bus Width
ATI Mobility Radeon X1900 Image
The Mobility Radeon X1900 was a graphics card by ATI, launched in January 2007. Built on the 80 nm process, and based on the M68 graphics processor, the card supports DirectX 9.0c. The M68 graphics processor is an average sized chip with a die area of 230 mm² and 384 million transistors. It features 36 pixel shaders and 8 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 400 MHz, memory is running at 480 MHz.
We recommend the ATI Mobility Radeon X1900 for gaming with highest details at resolutions up to, and including, 800x600.
Its power draw is not exactly known. Mobility Radeon X1900 is connected to the rest of the system using a PCIe 1.0 x16 interface.

Graphics Processor

GPU Name: M68
Process Size: 80 nm
Transistors: 384 million
Die Size: 230 mm²

Graphics Card

Released: Jan 11th, 2007
Production Status: End-of-life
Bus Interface: PCIe 1.0 x16

Clock Speeds

GPU Clock: 400 MHz
Memory Clock: 480 MHz
960 MHz effective


Memory Size: 256 MB
Memory Type: GDDR3
Memory Bus: 256 bit
Bandwidth: 30.72 GB/s

Render Config

Pixel Shaders: 36
Vertex Shaders: 8
TMUs: 12
ROPs: 12
Pixel Rate: 4.800 GPixel/s
Vertex Rate: 800.0 MVertices/s
Texture Rate: 4.800 GTexel/s

Graphics Features

DirectX: 9.0c
OpenGL: 2.0
OpenCL: n/a
Shader Model: 3.0


Our review database contains 2 reviews of the Mobility Radeon X1900.

M68 GPU Notes