Matrox Parhelia 128 MB vs Radeon HD 6490M

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Primary details

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

Place in the ranking1112not rated
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation0.01no data
ArchitectureTeraScale 2 (2009−2015)Parhelia (2002−2006)
GPU code nameSeymourParhelia-512
Market segmentLaptopDesktop
Release date4 January 2011 (13 years ago)25 June 2002 (22 years ago)
Launch price (MSRP)$1,193.03 no data

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

no data

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 cores160no data
Core clock speed800 MHz200 MHz
Number of transistors370 million80 million
Manufacturing process technology40 nm150 nm
Texture fill rate6.4000.8
Floating-point processing power0.256 TFLOPSno data
ROPs44
TMUs84

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).

InterfacePCIe 2.0 x16AGP 4x
Lengthno data175 mm
Widthno data1-slot
Supplementary power connectorsno dataNone

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 typeGDDR5DDR
Maximum RAM amount512 MB128 MB
Memory bus width64 Bit256 Bit
Memory clock speed800 MHz250 MHz
Memory bandwidth25.6 GB/s16 GB/s
Shared memory-no 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 ConnectorsNo outputs2x DVI

API compatibility

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

DirectX11.2 (11_0)8.1
Shader Model5.0no data
OpenGL4.41.5
OpenCL1.2N/A
VulkanN/AN/A

Pros & cons summary


Recency 4 January 2011 25 June 2002
Maximum RAM amount 512 MB 128 MB
Chip lithography 40 nm 150 nm

HD 6490M has an age advantage of 8 years, a 300% higher maximum VRAM amount, and a 275% more advanced lithography process.

We couldn't decide between Radeon HD 6490M and Matrox Parhelia 128 MB. We've got no test results to judge.

Be aware that Radeon HD 6490M is a notebook card while Matrox Parhelia 128 MB is a desktop 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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AMD Radeon HD 6490M
Radeon HD 6490M
Matrox Parhelia 128 MB
Parhelia 128 MB

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Community ratings

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3.4 37 votes

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1.7 3 votes

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