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ATI Radeon X550

ATI Radeon X550 Image ATI RV370 Image
The Radeon X550 was a graphics card by ATI, launched in July 2005. Built on the 110 nm process, and based on the RV370 graphics processor, in its RV370 PRO variant, the card supports DirectX 9.0. The RV370 graphics processor is a relatively small chip with a die area of only 74 mm² and 107 million transistors. It features 4 pixel shaders and 2 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 128 MB DDR memory on the card, which are connected using a 128-bit memory interface. The GPU is operating at a frequency of 400 MHz, memory is running at 250 MHz.
Being a single-slot card, the ATI Radeon X550 does not require any additional power connector, its power draw is not exactly known. Display outputs include: 1x DVI, 1x VGA, 1x S-Video. Radeon X550 is connected to the rest of the system using a PCIe 1.0 x16 interface.

Graphics Processor

GPU Name: RV370
GPU Variant: RV370 PRO
Process Size: 110 nm
Transistors: 107 million
Die Size: 74 mm²

Graphics Card

Released: Jul 1st, 2005
Production Status: End-of-life
Bus Interface: PCIe 1.0 x16

Clock Speeds

GPU Clock: 400 MHz
Memory Clock: 250 MHz
500 MHz effective


Memory Size: 128 MB
Memory Type: DDR
Memory Bus: 128 bit
Bandwidth: 8.00 GB/s

Render Config

Pixel Shaders: 4
Vertex Shaders: 2
TMUs: 4
ROPs: 4
Pixel Rate: 1.600 GPixel/s
Vertex Rate: 200.0 MVertices/s
Texture Rate: 1.600 GTexel/s

Board Design

Slot Width: Single-slot
TDP: unknown
Outputs: 1x DVI
1x VGA
1x S-Video
Power Connectors: None

Graphics Features

DirectX: 9.0
OpenGL: 2.0
OpenCL: n/a
Pixel Shader: 2.0
Vertex Shader: 2.0


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Our review database contains 6 reviews of the Radeon X550.

Retail boards based on this design

Name GPU Clock Memory Clock Other Changes
Sapphire X550 Advantage 400 MHz 200 MHz
Sapphire X550 Advantage LP 400 MHz 200 MHz 256 MB, 1x DVI 1x S-Video, 64 bit
Sapphire X550 DDR2 400 MHz 250 MHz 256 MB, DDR2
Sapphire X550 SILENT 400 MHz 250 MHz