Radeon Instinct MI355X vs PRO W7900

Primary details

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

Place in the ranking	25	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	7.42	no data
Power efficiency	17.51	no data
Architecture	RDNA 3.0 (2022−2026)	CDNA 4.0 (2025)
GPU code name	Navi 31	CDNA Next
Market segment	Workstation	Workstation
Release date	13 April 2023 (3 years ago)	2025 (1 year ago)
Launch price (MSRP)	$3,999	no data

Cost-effectiveness evaluation

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

Performance to price scatter graph

Currently popular graphics cards are shown for comparison.

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Real power consumption of some graphics cards can well exceed their nominal TDP, especially if overclocked.

Pipelines / CUDA cores	6144	16384
Core clock speed	1855 MHz	1000 MHz
Boost clock speed	2495 MHz	2400 MHz
Number of transistors	57,700 million	185,000 million
Manufacturing process technology	5 nm	3 nm
Power consumption (TDP)	295 Watt	1400 Watt
Texture fill rate	958.1	2,457.6
Floating-point processing power	61.32 TFLOPS	78.64 TFLOPS
ROPs	192	no data
TMUs	384	1024
Tensor Cores	no data	1024
Ray Tracing Cores	96	no data
L0 Cache	3 MB	no data
L1 Cache	3 MB	4 MB
L2 Cache	6 MB	16 MB
L3 Cache	96 MB	256 MB

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	PCIe 5.0 x16
Length	280 mm	no data
Width	3-slot	OAM Module
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	HBM3e
Maximum RAM amount	48 GB	288 GB
Memory bus width	384 Bit	8192 Bit
Memory clock speed	2250 MHz	2000 MHz
Memory bandwidth	864.0 GB/s	8.19 TB/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

3x DisplayPort 2.1, 1x mini-DisplayPort 2.1

No outputs

API and SDK support

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

DirectX	12 Ultimate (12_2)	N/A
Shader Model	6.7	N/A
OpenGL	4.6	N/A
OpenCL	2.2	3.0
Vulkan	1.3	N/A
DLSS	-	+

Pros & cons summary

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Maximum RAM amount	48 GB	288 GB
Chip lithography	5 nm	3 nm
Power consumption (TDP)	295 Watt	1400 Watt