Matrox Millenium P650 vs Radeon RX 6900

Primary details

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

Place in the ranking22not rated
Place by popularitynot in top-100not in top-100
Power efficiency18.93no data
ArchitectureRDNA 2.0 (2020−2024)Parhelia (2002−2006)
GPU code nameNavi 21Parhelia-LX
Market segmentDesktopDesktop
Release date28 October 2020 (4 years ago)2 January 2002 (22 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 cores4608no data
Core clock speedno data190 MHz
Boost clock speed2105 MHzno data
Number of transistors23,000 million80 million
Manufacturing process technology7 nm150 nm
Power consumption (TDP)255 Wattno data
Texture fill rate606.20.76
Floating-point processing power19.4 TFLOPSno data
ROPs642
TMUs2884

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 4.0 x16AGP 8x
Width2-slot1-slot
Supplementary power connectors2x 8-pinNone

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 typeGDDR6DDR
Maximum RAM amount16 GB128 MB
Memory bus width256 Bit128 Bit
Memory clock speed16 GB/s230 MHz
Memory bandwidth512.0 GB/s7.36 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 Connectors1x HDMI, 2x DisplayPort, 1x USB Type-C2x DVI
HDMI+-

API compatibility

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

DirectX12 Ultimate (12_2)8.1
Shader Model6.5no data
OpenGL4.61.3
OpenCL2.0N/A
Vulkan1.2N/A

Pros & cons summary


Recency 28 October 2020 2 January 2002
Maximum RAM amount 16 GB 128 MB
Chip lithography 7 nm 150 nm

RX 6900 has an age advantage of 18 years, a 12700% higher maximum VRAM amount, and a 2042.9% more advanced lithography process.

We couldn't decide between Radeon RX 6900 and Matrox Millenium P650. We've got no test results to judge.


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 RX 6900
Radeon RX 6900
Matrox Millenium P650
Millenium P650

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