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ATI Mobility Radeon X2500

ATI Mobility Radeon X2500 Image ATI M66 Image
The Mobility Radeon X2500 was a graphics card by ATI, launched in June 2007. Built on the 90 nm process, and based on the M66 graphics processor, the card supports DirectX 9.0c. The M66 graphics processor is an average sized chip with a die area of 150 mm² and 157 million transistors. It features 12 pixel shaders and 5 vertex shaders, 4 texture mapping units and 4 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 DDR2 memory on the card, which are connected using a 128-bit memory interface. The GPU is operating at a frequency of 460 MHz, memory is running at 400 MHz.
Its power draw is not exactly known. Mobility Radeon X2500 is connected to the rest of the system using a PCIe 1.0 x16 interface.

Graphics Processor

GPU Name: M66
Process Size: 90 nm
Transistors: 157 million
Die Size: 150 mm²

Graphics Card

Released: Jun 1st, 2007
Production Status: End-of-life
Bus Interface: PCIe 1.0 x16

Clock Speeds

GPU Clock: 460 MHz
Memory Clock: 400 MHz
800 MHz effective


Memory Size: 256 MB
Memory Type: DDR2
Memory Bus: 128 bit
Bandwidth: 12.8 GB/s

Render Config

Pixel Shaders: 12
Vertex Shaders: 5
TMUs: 4
ROPs: 4
Pixel Rate: 1.84 GPixel/s
Vertex Rate: 0.575 GVertices/s
Texture Rate: 1.84 GTexel/s

Graphics Features

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


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Our review database contains 2 reviews of the Mobility Radeon X2500.

M66 GPU Notes