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AMD Radeon Instinct MI455X
GPU
AMD
Jul 2026 Released
The AMD Radeon Instinct MI455X is a desktop-class GPU manufactured by AMD, built on AMD's officially announced 2 nm process technology, released in July 2026. This graphics card is equipped with 432GB HBM4 memory, suitable for gaming and professional graphics applications.
Graphics Card
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Release Date
Jul 2026
Generation
Radeon Instinct
Type
Desktop
Bus Interface
PCIe 6.0 x16
Clock Speeds
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Base Clock
1000 MHz
Boost Clock
2400 MHz
Memory Clock
1900 MHz
Memory
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Memory Size
432GB
Memory Type
HBM4
Memory Bus
24576bit
Bandwidth
23.3TB/s
Render Config
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Compute Units
256
Shading Units
32768
TMUs
1024
ROPs
0
L1 Cache
32 KB (per CU)
L2 Cache
192 MB
Theoretical Performance
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Pixel Rate
0 MPixel/s
Texture Rate
2457.6 GTexel/s
FP16 (half)
157.3 TFLOPS
FP32 (float)
157.3 TFLOPS
FP64 (double)
2.458 TFLOPS
Graphics Processor
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GPU Name
MI450 256CU
Architecture
CDNA 5.0
Foundry
TSMC
Process Size
2 nm
Transistors
320 billion
Die Size
Unknown
Board Design
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TDP
2300W
Suggested PSU
2700 W
Outputs
No outputs
Power Connectors
None
Graphics Features
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DirectX
N/A
OpenGL
N/A
OpenCL
3.0
Vulkan
N/A
Shader Model
N/A