Radeon Pro W6900X vs Matrox Millennium G550 PCIe

Primary details

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

Place in the rankingnot ratednot rated
Place by popularitynot in top-100not in top-100
ArchitectureG500 (2001−2005)RDNA 2.0 (2020−2024)
GPU code nameCondorNavi 21
Market segmentDesktopWorkstation
Release date26 November 2001 (22 years ago)3 August 2021 (3 years ago)
Launch price (MSRP)$199 $4,999

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 data5120
Core clock speed125 MHz1825 MHz
Boost clock speedno data2150 MHz
Number of transistors10 million26,800 million
Manufacturing process technology180 nm7 nm
Power consumption (TDP)no data300 Watt
Texture fill rate0.25688.0
Floating-point processing powerno data22.02 TFLOPS
ROPs2128
TMUs2320
Ray Tracing Coresno data80

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 1.0 x1PCIe 4.0 x16
Length112 mm267 mm
Width1-slotQuad-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 typeDDRGDDR6
Maximum RAM amount32 MB32 GB
Memory bus width64 Bit256 Bit
Memory clock speed166 MHz2000 MHz
Memory bandwidth2.656 GB/s512.0 GB/s

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 DVI1x HDMI, 4x Thunderbolt
HDMI-+

API compatibility

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

DirectX8.012 Ultimate (12_2)
Shader Modelno data6.5
OpenGL1.54.6
OpenCLN/A2.1
VulkanN/A1.2

Pros & cons summary


Recency 26 November 2001 3 August 2021
Maximum RAM amount 32 MB 32 GB
Chip lithography 180 nm 7 nm

Pro W6900X has an age advantage of 19 years, a 102300% higher maximum VRAM amount, and a 2471.4% more advanced lithography process.

We couldn't decide between Matrox Millennium G550 PCIe and Radeon Pro W6900X. We've got no test results to judge.

Be aware that Matrox Millennium G550 PCIe is a desktop card while Radeon Pro W6900X is a workstation one.


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

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite graphics card.


Matrox Millennium G550 PCIe
Millennium G550 PCIe
AMD Radeon Pro W6900X
Radeon Pro W6900X

Comparisons with similar GPUs

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

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


No user ratings yet.

Rate Matrox Millennium G550 PCIe on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
3.1 67 votes

Rate Radeon Pro W6900X on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about this comparison, agree or disagree with our judgements, or report an error or mismatch.