AMD Instinct MI300X vs NVIDIA GB10
GPU Specs Compare
Graphics Card
Release Date
Dec 2023
Oct 2025
Generation
Radeon Instinct
Server Blackwell
Type
Professional
Desktop
Bus Interface
PCIe 5.0 x16
PCIe 5.0 x16
Clock Speeds
Base Clock
1000 MHz
1665 MHz
Boost Clock
2100 MHz
2418 MHz
Memory Clock
2525 MHz
1067 MHz
Memory
Memory Size
192GB
128GB
Memory Type
HBM3
LPDDR5X
Memory Bus
8192bit
256bit
Bandwidth
10.3TB/s
273.2GB/s
Render Config
Compute Units
304
-
Shading Units
19456
6144
TMUs
1216
384
ROPs
0
48
L1 Cache
16 KB (per CU)
256 KB (per SM)
L2 Cache
16 MB
50 MB
L3 Cache
256 MB
-
SM Count
-
48
Tensor Cores
-
384
RT Cores
-
48
Theoretical Performance
Pixel Rate
0 MPixel/s
116.1 GPixel/s
Texture Rate
2553.6 GTexel/s
928.5 GTexel/s
FP16 (half)
653.7 TFLOPS
29.71 TFLOPS
FP32 (float)
81.72 TFLOPS
29.71 TFLOPS
FP64 (double)
81.72 TFLOPS
464.3 GFLOPS
Graphics Processor
GPU Name
Aqua Vanjaram
GB20B
Architecture
CDNA 3.0
Blackwell 2.0
Foundry
TSMC
TSMC
Process Size
5 nm
3 nm
Transistors
153 billion
Unknown
Die Size
1017 mm²
Unknown
Board Design
TDP
750W
140W
Suggested PSU
1150 W
300 W
Outputs
No outputs
1x HDMI
Power Connectors
None
None
Graphics Features
DirectX
N/A
N/A
OpenGL
N/A
N/A
OpenCL
3.0
3.0
Vulkan
N/A
N/A
Shader Model
N/A
N/A
CUDA
-
12.1