GPU

Matrox Parhelia 128 MB

Unknown graphics card specifications and benchmark scores

128 MB
VRAM
MHz Boost
TDP
256
Bus Width

At a Glance

Unknown
VRAM 128 MB
Bus Width 256-bit
Memory Type DDR
Architecture Parhelia
nm
Process 150 nm
Released Jun 2002

Matrox Parhelia 128 MB Specifications

Matrox Parhelia 128 MB GPU Core

Shader units and compute resources

The Matrox Parhelia 128 MB 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

Matrox Parhelia 128 MB Clock Speeds

GPU and memory frequencies

Clock speeds directly impact the Matrox Parhelia 128 MB'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 128 MB by Unknown dynamically adjusts frequencies based on workload, temperature, and power limits to maximize performance while maintaining stability.

GPU Clock
220 MHz
Memory Clock
275 MHz 550 Mbps effective
GDDR GDDR 6X 6X

Unknown's Matrox Parhelia 128 MB Memory

VRAM capacity and bandwidth

VRAM (Video RAM) is dedicated memory for storing textures, frame buffers, and shader data. The Matrox Parhelia 128 MB'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
128 MB
VRAM
128 MB
Memory Type
DDR
VRAM Type
DDR
Memory Bus
256 bit
Bus Width
256-bit
Bandwidth
17.60 GB/s

Matrox Parhelia 128 MB Theoretical Performance

Compute and fill rates

Theoretical performance metrics provide a baseline for comparing the Matrox Parhelia 128 MB 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
880.0 MPixel/s
Texture Rate
3.520 GTexel/s

Parhelia Architecture & Process

Manufacturing and design details

The Matrox Parhelia 128 MB 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 128 MB 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 128 MB Power & Thermal

TDP and power requirements

Power specifications for the Matrox Parhelia 128 MB 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 128 MB to maintain boost clocks without throttling.

Power Connectors
None
Suggested PSU
200 W

Matrox Parhelia 128 MB by Unknown Physical & Connectivity

Dimensions and outputs

Physical dimensions of the Matrox Parhelia 128 MB 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
175 mm 6.9 inches
Bus Interface
AGP 4x
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 128 MB. 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

Matrox Parhelia 128 MB Product Information

Release and pricing details

The Matrox Parhelia 128 MB 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 128 MB by Unknown represents good value at current market prices. Predecessor and successor information aids in tracking generational improvements and planning future upgrades.

Manufacturer
Unknown
Release Date
Jun 2002
Production
End-of-life

Matrox Parhelia 128 MB Benchmark Scores

No benchmark data available for this GPU.

About Matrox Parhelia 128 MB

The Matrox Parhelia 128 MB is an end-of-life graphics card built on the Parhelia architecture, featuring a Parhelia-512 chip manufactured on a 150 nm process at UMC. It contains 80 million transistors on a 174 mm² die, with a transistor density of 459.8K per mm². The card ships with 128 MB of DDR memory on a 256-bit bus, delivering 17.60 GB/s of bandwidth, and a memory clock of 275 MHz (550 Mbps effective). Released on June 24, 2002, it targets the early 2000s market, offering dual DVI outputs and an AGP 4x interface. The database records a percentile rank of 50 and an average benchmark score of 0, with no nearest rivals listed.

Who Should Consider It

The Parhelia 128 MB is designed for users who need a legacy graphics solution with dual-display capability. Its 2x DVI outputs allow direct connection to two digital monitors without adapters, a feature that was uncommon for its generation. The 128 MB frame buffer and 256-bit memory bus provide sufficient bandwidth for high-color-depth applications, though the exact resolution ceiling is not specified in the data. The card’s DirectX 8.1 and OpenGL 1.3 API support restricts it to software from that era; modern titles requiring Vulkan or higher DirectX versions will not run. For productivity tasks such as spreadsheet work, coding, or 2D design, the Parhelia’s fixed-function pipeline is adequate, and the 16 texture mapping units and 4 render output units deliver a pixel rate of 880 MPixel/s and a texture rate of 3.520 GTexel/s. These figures suggest it can handle moderate 3D loads at lower resolutions, but without benchmark scores, real-world performance remains unverified. The card’s end-of-life status and 150 nm process make it suitable only for maintaining vintage systems or for collectors, not for current gaming or professional workloads.

Ray Tracing and Feature Set

The Parhelia 128 MB does not include any ray tracing cores or tensor cores; the fact pack lists neither. Consequently, hardware-accelerated ray tracing and AI-based features such as DLSS are absent. The API support is limited to DirectX 8.1 and OpenGL 1.3, with no Vulkan support. This means the card relies entirely on the fixed-function pipeline of its era, with no programmable shading beyond what those APIs expose. The 16 TMUs and 4 ROPs provide a fixed fill rate, and the pixel rate of 880 MPixel/s and texture rate of 3.520 GTexel/s are the primary throughput metrics. The memory bandwidth of 17.60 GB/s, combined with the 256-bit bus, supports these fill rates without bottlenecking. The absence of shading unit counts in the data indicates that the card’s feature set is defined by rasterization rather than by programmable shader cores. As a result, the Parhelia is not suitable for any workload that leverages modern graphics features such as ray tracing, variable rate shading, or mesh shaders.

Benchmark Performance

The database records an average benchmark score of 0 and a percentile rank of 50. This indicates that no performance measurements have been logged for this GPU, and its placement at the median is a default value rather than a result of comparative testing. Without benchmark scores, the only quantitative performance indicators are the theoretical rates: 880 MPixel/s pixel fill rate, 3.520 GTexel/s texture fill rate, and 17.60 GB/s memory bandwidth. These numbers reflect the card’s raw throughput but do not translate directly to frame rates in specific titles. The lack of nearest rivals in the dataset further prevents any comparative analysis. The percentile rank of 50 places it exactly at the midpoint of all GPUs in the database, but this is not based on any measured performance. In the absence of empirical data, the theoretical rates serve as the best estimate of its capabilities. The 80 million transistors on a 150 nm process suggest a design that was competitive in 2002, but the 174 mm² die size and 459.8K/mm² density are now far surpassed by modern GPUs. The memory clock of 275 MHz (550 Mbps effective) is low by today’s standards, yet it was aligned with the DDR memory of its time.

Power and Cooling

The Parhelia 128 MB is a single-slot card with a length of 175 mm (6.9 inches). It requires no auxiliary power connectors; the fact pack lists “None” for power connectors. The suggested PSU rating is 200 W, which is modest even for the early 2000s. The thermal design power is not specified, but the lack of power connectors and the 150 nm process suggest a relatively low draw. The memory operates at 275 MHz with an effective 550 Mbps, and the card uses a passive or simple cooling solution typical of single-slot designs. The bus interface is AGP 4x, which is compatible with motherboards of that era. The absence of a power connector means that installation is straightforward, requiring only the AGP slot’s power delivery. The 200 W PSU recommendation is likely to accommodate the rest of the system rather than the card itself, as the card’s own draw is constrained by the slot’s limits. The single-slot form factor and lack of external power also make it easy to install in compact cases, though the 175 mm length may require careful clearance in smaller chassis.

How It Compares

The database lists no nearest rivals for the Matrox Parhelia 128 MB. This absence of comparative data means that a direct performance comparison to other GPUs cannot be made from the provided information. The percentile rank of 50, however, places it at the median of all GPUs in the database, but as noted, this is a default value rather than a result of benchmark testing. In the context of its own specifications, the card’s 16 TMUs and 4 ROPs, along with a 256-bit memory bus, were typical for high-end cards of its release year (2002). The 128 MB memory capacity was generous at the time, and the dual DVI outputs were a differentiator. Without rival scores, the Parhelia’s position must be inferred from its architecture and features. It sits as a legacy product with no direct competitors in the current dataset, and its end-of-life status suggests it has been superseded. The lack of benchmark data and rivals means that any assessment of its relative performance is purely qualitative, based on the fill rates and memory bandwidth listed. The 50th percentile rank, while not derived from measurements, at least indicates that the database treats it as a mid-tier entry, though this is a placeholder rather than a meaningful comparison.

The NVIDIA Equivalent of Matrox Parhelia 128 MB

Looking for a similar graphics card from NVIDIA? The NVIDIA GeForce GTX 260 offers comparable performance and features in the NVIDIA lineup.

NVIDIA GeForce GTX 260

NVIDIA • 896 MB VRAM

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