Quadro P500 vs Matrox Parhelia 256 MB

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Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the rankingnot rated679
Place by popularitynot in top-100not in top-100
Power efficiencyno data16.27
ArchitectureParhelia (2002−2006)Pascal (2016−2021)
GPU code nameParhelia-512GP108
Market segmentDesktopMobile workstation
Release date25 June 2002 (22 years ago)5 January 2018 (6 years ago)

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA coresno data256
Core clock speed200 MHz1455 MHz
Boost clock speedno data1518 MHz
Number of transistors80 million1,800 million
Manufacturing process technology150 nm14 nm
Power consumption (TDP)no data18 Watt
Texture fill rate0.824.29
Floating-point processing powerno data0.7772 TFLOPS
ROPs416
TMUs416

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

Laptop sizeno datalarge
InterfaceAGP 4xPCIe 3.0 x16
Length175 mmno data
Width1-slotno data
Supplementary power connectorsNoneNone

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory typeDDRGDDR5
Maximum RAM amount256 MB2 GB
Memory bus width256 Bit64 Bit
Memory clock speed250 MHz1253 MHz
Memory bandwidth16 GB/s40.1 GB/s
Shared memoryno data-

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display Connectors2x DVINo outputs

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX8.112 (12_1)
Shader Modelno data6.4
OpenGL1.54.6
OpenCLN/A1.2
VulkanN/A1.2.131
CUDA-6.1

Pros & cons summary


Recency 25 June 2002 5 January 2018
Maximum RAM amount 256 MB 2 GB
Chip lithography 150 nm 14 nm

Quadro P500 has an age advantage of 15 years, a 700% higher maximum VRAM amount, and a 971.4% more advanced lithography process.

We couldn't decide between Matrox Parhelia 256 MB and Quadro P500. We've got no test results to judge.

Be aware that Matrox Parhelia 256 MB is a desktop card while Quadro P500 is a mobile workstation one.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

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Matrox Parhelia 256 MB
Parhelia 256 MB
NVIDIA Quadro P500
Quadro P500

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Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


1.6 10 votes

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3.3 29 votes

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Questions & comments

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