Radeon Instinct MI455X vs RX 9060 XT LP

Primary details

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

Place in the ranking	not rated	not rated
Place by popularity	not in top-100	not in top-100
Architecture	RDNA 4.0 (2025)	CDNA 5.0 (2026)
GPU code name	Navi 44	MI450 256CU
Market segment	Desktop	Workstation
Release date	17 December 2025 (less than a year ago)	23 July 2026 (recently)

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	2048	32768
Core clock speed	1380 MHz	1000 MHz
Boost clock speed	3050 MHz	2400 MHz
Number of transistors	29,700 million	320,000 million
Manufacturing process technology	4 nm	2 nm
Power consumption (TDP)	140 Watt	1400 Watt
Texture fill rate	390.4	2,457.6
Floating-point processing power	24.99 TFLOPS	157.3 TFLOPS
ROPs	64	no data
TMUs	128	1024
Ray Tracing Cores	32	no data
L0 Cache	512 KB	no data
L1 Cache	no data	8 MB
L2 Cache	4 MB	192 MB
L3 Cache	32 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 5.0 x16	PCIe 5.0 x16
Width	2-slot	EAM Module
Supplementary power connectors	1x 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	HBM4
Maximum RAM amount	16 GB	432 GB
Memory bus width	128 Bit	24576 Bit
Memory clock speed	2518 MHz	1900 MHz
Memory bandwidth	322.3 GB/s	23.3 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	1x HDMI 2.1b, 2x DisplayPort 2.1a	No outputs
HDMI	+	-

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	6.8	N/A
OpenGL	4.6	N/A
OpenCL	2.2	3.0
Vulkan	1.4	N/A

Pros & cons summary

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Recency	17 December 2025	23 July 2026
Maximum RAM amount	16 GB	432 GB
Chip lithography	4 nm	2 nm
Power consumption (TDP)	140 Watt	1400 Watt