Matrox Millenium P650 PCIe vs Radeon RX 6400

Primary details

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

Place in the ranking	330	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	43.48	no data
Power efficiency	26.92	no data
Architecture	RDNA 2.0 (2020−2025)	Parhelia (2002−2006)
GPU code name	Navi 24	Parhelia-LX
Market segment	Desktop	Desktop
Release date	19 January 2022 (4 years ago)	10 May 2003 (22 years ago)
Launch price (MSRP)	$159	$234

Cost-effectiveness evaluation

The higher the ratio, the better. We use the manufacturer's recommended prices.

Performance to price scatter graph

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	768	no data
Core clock speed	1923 MHz	275 MHz
Boost clock speed	2321 MHz	no data
Number of transistors	5,400 million	80 million
Manufacturing process technology	6 nm	150 nm
Power consumption (TDP)	53 Watt	no data
Texture fill rate	111.4	2.200
Floating-point processing power	3.565 TFLOPS	no data
ROPs	32	2
TMUs	48	8
Ray Tracing Cores	12	no data
L0 Cache	192 KB	no data
L1 Cache	256 KB	no data
L2 Cache	1024 KB	no data
L3 Cache	16 MB	no data

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 x4	PCIe 1.0 x16
Width	1-slot	1-slot
Supplementary power connectors	None	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	4 GB	128 MB
Memory bus width	64 Bit	128 Bit
Memory clock speed	2000 MHz	275 MHz
Memory bandwidth	128.0 GB/s	8.8 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 2.1, 1x DisplayPort 1.4a	2x DVI
HDMI	+	-

API and SDK support

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

DirectX	12 Ultimate (12_2)	8.1
Shader Model	6.7	no data
OpenGL	4.6	1.3
OpenCL	2.2	N/A
Vulkan	1.3	N/A

Pros & cons summary

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Recency	19 January 2022	10 May 2003
Maximum RAM amount	4 GB	128 MB
Chip lithography	6 nm	150 nm