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Matrox Parhelia 256 MB

Matrox Parhelia 256 MB Image
The Parhelia 256 MB was a graphics card by Matrox, launched in January 2001. Built on the 150 nm process, and based on the Parhelia-512 graphics processor, the card supports DirectX 8.1. It features 4 pixel shaders and 4 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). Matrox has placed 256 MB DDR memory on the card, which are connected using a 256-bit memory interface. The GPU is operating at a frequency of 200 MHz, memory is running at 250 MHz.
Being a single-slot card, its power draw is not exactly known. Parhelia 256 MB is connected to the rest of the system using an AGP 8x interface.

Graphics Processor

GPU Name: Parhelia-512
Process Size: 150 nm
Transistors: 80 million
Die Size: unknown

Graphics Card

Released: Jan 1st, 2001
Production Status: End-of-life
Bus Interface: AGP 8x

Clock Speeds

GPU Clock: 200 MHz
Memory Clock: 250 MHz
500 MHz effective


Memory Size: 256 MB
Memory Type: DDR
Memory Bus: 256 bit
Bandwidth: 16.0 GB/s

Render Config

Pixel Shaders: 4
Vertex Shaders: 4
TMUs: 4
ROPs: 4
Pixel Rate: 0.800 GPixel/s
Vertex Rate: 0.200 GVertices/s
Texture Rate: 0.800 GTexel/s

Board Design

Slot Width: Single-slot
TDP: unknown

Graphics Features

DirectX: 8.1
OpenGL: 1.5
OpenCL: n/a
Pixel Shader: 1.3
Vertex Shader: 2.0


Our review database contains 5 reviews of the Parhelia 256 MB.

Card Notes

512bit GPU
Retail Version