Matrox Millennium G450 vs Radeon RX 6900

Primary details

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

Place in the ranking	36	not rated
Place by popularity	not in top-100	not in top-100
Power efficiency	19.25	no data
Architecture	RDNA 2.0 (2020−2025)	G400 (1999−2002)
GPU code name	Navi 21	Condor
Market segment	Desktop	Desktop
Release date	28 October 2020 (5 years ago)	April 2000 (25 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 cores	4608	no data
Core clock speed	no data	125 MHz
Boost clock speed	2105 MHz	no data
Number of transistors	23,000 million	10 million
Manufacturing process technology	7 nm	180 nm
Power consumption (TDP)	255 Watt	no data
Texture fill rate	606.2	0.25
Floating-point processing power	19.4 TFLOPS	no data
ROPs	64	2
TMUs	288	2

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).

Interface	PCIe 4.0 x16	PCI
Length	no data	150 mm
Width	2-slot	1-slot
Supplementary power connectors	2x 8-pin	None

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 type	GDDR6	DDR
Maximum RAM amount	16 GB	32 MB
Memory bus width	256 Bit	64 Bit
Memory clock speed	16 GB/s	166 MHz
Memory bandwidth	512.0 GB/s	2.656 GB/s
Resizable BAR	+	-

Connectivity and outputs

This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.

Display Connectors	1x HDMI, 2x DisplayPort, 1x USB Type-C	1x DVI, 1x VGA
HDMI	+	-

API and SDK support

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

DirectX	12 Ultimate (12_2)	6.0
Shader Model	6.5	no data
OpenGL	4.6	None
OpenCL	2.0	None
Vulkan	1.2	N/A

Pros & cons summary

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Maximum RAM amount	16 GB	32 MB
Chip lithography	7 nm	180 nm

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