AMD P30PH vs AMD Radeon Instinct MI455X
GPU · Specs Compare
Graphics Card
Release Date
Unknown
Jul 2026
Generation
Mining GPUs
Radeon Instinct
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 6.0 x16
Clock Speeds
Base Clock
1120 MHz
1000 MHz
Boost Clock
1206 MHz
2400 MHz
Memory Clock
2100 MHz
1900 MHz
Memory
Memory Size
4GB
432GB
Memory Type
GDDR5
HBM4
Memory Bus
256bit
24576bit
Bandwidth
268.8GB/s
23.3TB/s
Render Config
Compute Units
32
256
Shading Units
2048
32768
TMUs
128
1024
ROPs
32
0
L1 Cache
16 KB (per CU)
32 KB (per CU)
L2 Cache
2 MB
192 MB
Theoretical Performance
Pixel Rate
38.59 GPixel/s
0 MPixel/s
Texture Rate
154.4 GTexel/s
2457.6 GTexel/s
FP16 (half)
4.940 TFLOPS
157.3 TFLOPS
FP32 (float)
4.940 TFLOPS
157.3 TFLOPS
FP64 (double)
308.7 GFLOPS
2.458 TFLOPS
Graphics Processor
GPU Name
Polaris 20
MI450 256CU
Architecture
GCN 4.0
CDNA 5.0
Foundry
GlobalFoundries
TSMC
Process Size
14 nm
2 nm
Transistors
5.7 billion
320 billion
Die Size
232 mm²
Unknown
Board Design
TDP
180W
2300W
Suggested PSU
450 W
2700 W
Outputs
1x HDMI 2.0b
No outputs
Power Connectors
2x 8-pin
None
Graphics Features
DirectX
12 (12_0)
N/A
OpenGL
4.6
N/A
OpenCL
2.1
3.0
Vulkan
1.3
N/A
Shader Model
6.7
N/A
▲ Specs Compare
Data sourced from official specifications and benchmark tests.