AMD Radeon Instinct MI25 vs NVIDIA B300
GPU · Specs Compare
Graphics Card
Release Date
Jun 2017
Sep 2025
Generation
Radeon Instinct
Server Blackwell
Type
Professional
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 5.0 x16
Clock Speeds
Base Clock
1400 MHz
1665 MHz
Boost Clock
1500 MHz
2032 MHz
Memory Clock
852 MHz
2000 MHz
Memory
Memory Size
16GB
144GB
Memory Type
HBM2
HBM3e
Memory Bus
2048bit
4096bit
Bandwidth
436.2GB/s
4.10TB/s
Render Config
Compute Units
64
—
Shading Units
4096
18944
TMUs
256
592
ROPs
64
24
L1 Cache
16 KB (per CU)
256 KB (per SM)
L2 Cache
4 MB
50 MB
SM Count
—
148
Tensor Cores
—
592
Theoretical Performance
Pixel Rate
96.00 GPixel/s
48.77 GPixel/s
Texture Rate
384.0 GTexel/s
1202.9 GTexel/s
FP16 (half)
24.58 TFLOPS
1231.8 TFLOPS
FP32 (float)
12.29 TFLOPS
76.99 TFLOPS
FP64 (double)
768.0 GFLOPS
1202.9 GFLOPS
Graphics Processor
GPU Name
Vega 10
GB110
GPU Variant
Vega 10 XT GL(215-0894124)
—
Architecture
GCN 5.0
Blackwell Ultra
Foundry
GlobalFoundries
TSMC
Process Size
14 nm
5 nm
Transistors
12.5 billion
104 billion
Die Size
495 mm²
Unknown
Board Design
TDP
300W
1400W
Suggested PSU
700 W
1800 W
Outputs
No outputs
No outputs
Power Connectors
2x 8-pin
—
Graphics Features
DirectX
12 (12_1)
N/A
OpenGL
4.6
N/A
OpenCL
2.1
3.0
Vulkan
1.2
N/A
Shader Model
6.4
N/A
CUDA
—
10.3
▲ Specs Compare
Data sourced from official specifications and benchmark tests.