GPU

Matrox Parhelia PCI

Unknown graphics card specifications and benchmark scores

256 MB
VRAM
MHz Boost
TDP
64
Bus Width

Matrox Parhelia PCI Specifications

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Matrox Parhelia PCI GPU Core

Shader units and compute resources

The Matrox Parhelia PCI GPU core specifications define its raw processing power for graphics and compute workloads. Shading units (also called CUDA cores, stream processors, or execution units depending on manufacturer) handle the parallel calculations required for rendering. TMUs (Texture Mapping Units) process texture data, while ROPs (Render Output Units) handle final pixel output. Higher shader counts generally translate to better GPU benchmark performance, especially in demanding games and 3D applications.

TMUs
16
ROPs
4
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Matrox Parhelia PCI Clock Speeds

GPU and memory frequencies

Clock speeds directly impact the Matrox Parhelia PCI's performance in GPU benchmarks and real-world gaming. The base clock represents the minimum guaranteed frequency, while the boost clock indicates peak performance under optimal thermal conditions. Memory clock speed affects texture loading and frame buffer operations. The Matrox Parhelia PCI by Unknown dynamically adjusts frequencies based on workload, temperature, and power limits to maximize performance while maintaining stability.

GPU Clock
200 MHz
Memory Clock
250 MHz 500 Mbps effective
GDDR GDDR 6X 6X

Unknown's Matrox Parhelia PCI Memory

VRAM capacity and bandwidth

VRAM (Video RAM) is dedicated memory for storing textures, frame buffers, and shader data. The Matrox Parhelia PCI's memory capacity determines how well it handles high-resolution textures and multiple displays. Memory bandwidth, measured in GB/s, affects how quickly data moves between the GPU and VRAM. Higher bandwidth improves performance in memory-intensive scenarios like 4K gaming. The memory bus width and type (GDDR6, GDDR6X, HBM) significantly influence overall GPU benchmark scores.

Memory Size
256 MB
VRAM
256 MB
Memory Type
DDR
VRAM Type
DDR
Memory Bus
64 bit
Bus Width
64-bit
Bandwidth
4.000 GB/s
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Matrox Parhelia PCI Theoretical Performance

Compute and fill rates

Theoretical performance metrics provide a baseline for comparing the Matrox Parhelia PCI against other graphics cards. FP32 (single-precision) performance, measured in TFLOPS, indicates compute capability for gaming and general GPU workloads. FP64 (double-precision) matters for scientific computing. Pixel and texture fill rates determine how quickly the GPU can render complex scenes. While real-world GPU benchmark results depend on many factors, these specifications help predict relative performance levels.

Pixel Rate
800.0 MPixel/s
Texture Rate
3.200 GTexel/s
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Parhelia Architecture & Process

Manufacturing and design details

The Matrox Parhelia PCI is built on Unknown's Parhelia architecture, which defines how the GPU processes graphics and compute workloads. The manufacturing process node affects power efficiency, thermal characteristics, and maximum clock speeds. Smaller process nodes pack more transistors into the same die area, enabling higher performance per watt. Understanding the architecture helps predict how the Matrox Parhelia PCI will perform in GPU benchmarks compared to previous generations.

Architecture
Parhelia
GPU Name
Parhelia-512
Process Node
150 nm
Foundry
UMC
Transistors
80 million
Die Size
174 mm²
Density
459.8K / mm²
🔌

Unknown's Matrox Parhelia PCI Power & Thermal

TDP and power requirements

Power specifications for the Matrox Parhelia PCI determine PSU requirements and thermal management needs. TDP (Thermal Design Power) indicates the heat output under typical loads, guiding cooler selection. Power connector requirements ensure adequate power delivery for stable operation during demanding GPU benchmarks. The suggested PSU wattage accounts for the entire system, not just the graphics card. Efficient power delivery enables the Matrox Parhelia PCI to maintain boost clocks without throttling.

Power Connectors
None
Suggested PSU
200 W
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Matrox Parhelia PCI by Unknown Physical & Connectivity

Dimensions and outputs

Physical dimensions of the Matrox Parhelia PCI are critical for case compatibility. Card length, height, and slot width determine whether it fits in your chassis. The PCIe interface version affects bandwidth for communication with the CPU. Display outputs define monitor connectivity options, with modern cards supporting multiple high-resolution displays simultaneously. Verify these specifications against your case and motherboard before purchasing to ensure a proper fit.

Slot Width
Single-slot
Length
190 mm 7.5 inches
Bus Interface
PCI-X
Display Outputs
2x DVI
Display Outputs
2x DVI
🎮

Unknown API Support

Graphics and compute APIs

API support determines which games and applications can fully utilize the Matrox Parhelia PCI. DirectX 12 Ultimate enables advanced features like ray tracing and variable rate shading. Vulkan provides cross-platform graphics capabilities with low-level hardware access. OpenGL remains important for professional applications and older games. CUDA (NVIDIA) and OpenCL enable GPU compute for video editing, 3D rendering, and scientific applications. Higher API versions unlock newer graphical features in GPU benchmarks and games.

DirectX
8.1
DirectX
8.1
OpenGL
1.3
OpenGL
1.3
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Matrox Parhelia PCI Product Information

Release and pricing details

The Matrox Parhelia PCI is manufactured by Unknown as part of their graphics card lineup. Release date and launch pricing provide context for comparing GPU benchmark results with competing products from the same era. Understanding the product lifecycle helps evaluate whether the Matrox Parhelia PCI by Unknown represents good value at current market prices. Predecessor and successor information aids in tracking generational improvements and planning future upgrades.

Manufacturer
Unknown
Production
End-of-life

Matrox Parhelia PCI Benchmark Scores

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No benchmark data available for this GPU.

About Matrox Parhelia PCI

The Matrox Parhelia PCI offers a 256 MB DDR memory configuration that was competitive for its era. Built on a 150 nm process, the card utilizes a PCI‑X interface to deliver stable bandwidth for workstation environments. Its architecture, known as Parhelia, integrates advanced pixel shading capabilities that support modern rendering pipelines. The design targets professional users who require consistent frame rates in legacy applications. Power consumption is managed through a dedicated voltage regulator, keeping thermal output within acceptable limits. The Matrox Parhelia PCI remains a viable option for legacy system upgrades where compatibility is paramount.

As a Matrox Parhelia PCI graphics solution, it provides robust video memory handling for high‑resolution textures. The DDR implementation ensures low latency and sufficient throughput for texture‑intensive workloads. Video memory bandwidth is optimized to reduce bottlenecks during complex scene rendering. Modern rendering features such as bump mapping and anisotropic filtering are supported natively. This Parhelia‑based card delivers stable performance in professional graphics pipelines despite its age. Its compatibility with PCI‑X slots allows integration into older server and workstation chassis.

The Parhelia PCI card excels in environments that demand precise color reproduction and stable driver support. Power requirements are modest, with a typical TDP that can be accommodated by standard ATX supplies. Optimal use cases include CAD applications, video playback, and legacy gaming titles. The card’s video memory subsystem is engineered to sustain high‑resolution frame buffers without degradation. For organizations maintaining older infrastructure, the Parhelia PCI card offers a cost‑effective upgrade path. Overall, the Matrox Parhelia PCI remains a reliable component for specialized enterprise deployments.

The NVIDIA Equivalent of Matrox Parhelia PCI

Looking for a similar graphics card from NVIDIA? The NVIDIA GeForce GTX 1630 offers comparable performance and features in the NVIDIA lineup.

NVIDIA GeForce GTX 1630

NVIDIA • 4 GB VRAM

View Specs Compare

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