Matrox Parhelia HR256: specs and benchmarks

Summary

Matrox started Parhelia HR256 sales on September 2003. This is a desktop graphics card based on a Parhelia architecture and made with 150 nm manufacturing process. It is primarily aimed at gamer market. 256 MB of DDR memory clocked at 0.25 GHz are supplied, and together with 64 Bit memory interface this creates a bandwidth of 4 GB/s.

Compatibility-wise, this is a single-slot graphics card attached via PCI-X interface. Its manufacturer default version has a length of 190 mm.

Primary details

Some basic facts about Matrox Parhelia HR256: architecture, market segment, release date etc.

Place in the ranking	not rated
Place by popularity	not in top-100
Architecture	Parhelia (2002−2006)
GPU code name	Parhelia-512
Market segment	Desktop
Release date	September 2003 (21 year ago)

Detailed specifications

Matrox Parhelia HR256's specs such as number of shaders, GPU base clock, manufacturing process, texturing and calculation speed. These parameters indirectly speak of Matrox Parhelia HR256's performance, but for precise assessment you have to consider its benchmark and gaming test results.

Core clock speed	200 MHz	of 2610 MHz (Radeon RX 6500 XT)
Number of transistors	80 million	of 208,000 million (B200 SXM 192 GB)
Manufacturing process technology	150 nm	of 3 nm (Arc Graphics 140V)
Texture fill rate	3.200	of 2,554 (Radeon Instinct MI300X)
ROPs	4	of 192 (Radeon RX 7900 XTX)
TMUs	16	of 1280 (Data Center GPU Max NEXT)

Form factor & compatibility

This section provides details about the physical dimensions of Matrox Parhelia HR256 and its compatibility with other computer components. This information is useful when selecting a computer configuration or upgrading an existing one. For desktop graphics cards, it includes details about the interface and bus (for motherboard compatibility) and additional power connectors (for power supply compatibility).

Interface	PCI-X
Length	190 mm
Width	1-slot
Supplementary power connectors	None

VRAM capacity and type

Parameters of memory installed on Matrox Parhelia HR256: its type, size, bus, clock and resulting bandwidth. Note that GPUs integrated into processors have no dedicated memory and use a shared part of system RAM instead.

Memory type	DDR
Maximum RAM amount	256 MB	of 294912 (Radeon Instinct MI325X)
Memory bus width	64 Bit	of 8192 Bit (Radeon Instinct MI250X)
Memory clock speed	250 MHz	of 20000 (RTX 5000 Ada Generation Mobile)
Memory bandwidth	4 GB/s	of 5,171 GB/s (Radeon Instinct MI300X)

Connectivity and outputs

Types and number of video connectors present on Matrox Parhelia HR256. As a rule, this section is relevant only for desktop reference graphics cards, since for notebook ones the availability of certain video outputs depends on the laptop model, while non-reference desktop models can (though not necessarily will) bear a different set of video ports.

Display Connectors

2x LFH60

API compatibility

APIs supported by Matrox Parhelia HR256, sometimes including their particular versions.

DirectX	8.1
OpenGL	1.3	of 4.6 (GeForce RTX 4090)
OpenCL	N/A
Vulkan	N/A

Benchmark performance

Synthetic benchmark performance of Matrox Parhelia HR256. The combined score is measured on a 0-100 point scale.

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