NVIDIA RTX A2000 Mobile 8 GB vs AMD Radeon Instinct MI455X
GPU Specs Compare
Graphics Card
Release Date
Apr 2021
Jul 2026
Generation
Ampere-MW
Radeon Instinct
Type
Mobile
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 6.0 x16
Clock Speeds
Base Clock
1117 MHz
1000 MHz
Boost Clock
1612 MHz
2400 MHz
Memory Clock
1750 MHz
1900 MHz
Memory
Memory Size
8GB
432GB
Memory Type
GDDR6
HBM4
Memory Bus
128bit
24576bit
Bandwidth
224.0GB/s
23.3TB/s
Render Config
SM Count
20
-
Shading Units
2560
32768
TMUs
80
1024
ROPs
48
0
Tensor Cores
80
-
RT Cores
20
-
L1 Cache
128 KB (per SM)
32 KB (per CU)
L2 Cache
2 MB
192 MB
Compute Units
-
256
Theoretical Performance
Pixel Rate
77.38 GPixel/s
0 MPixel/s
Texture Rate
129.0 GTexel/s
2457.6 GTexel/s
FP16 (half)
8.253 TFLOPS
157.3 TFLOPS
FP32 (float)
8.253 TFLOPS
157.3 TFLOPS
FP64 (double)
129.0 GFLOPS
2.458 TFLOPS
Graphics Processor
GPU Name
GA107
MI450 256CU
Architecture
Ampere
CDNA 5.0
Foundry
Samsung
TSMC
Process Size
8 nm
2 nm
Transistors
8.7 billion
320 billion
Die Size
200 mm²
Unknown
Board Design
TDP
95W
2300W
Outputs
Portable Device Dependent
No outputs
Power Connectors
None
None
Suggested PSU
-
2700 W
Graphics Features
DirectX
12 Ultimate (12_2)
N/A
OpenGL
4.6
N/A
OpenCL
3.0
3.0
Vulkan
1.3
N/A
CUDA
8.6
-
Shader Model
6.8
N/A