AMD Radeon Pro W6600M vs NVIDIA B300 SXM6 AC
GPU · Specs Compare
Graphics Card
Release Date
Jun 2021
Sep 2025
Generation
Radeon Pro Mobile
Server Blackwell
Type
Mobile
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 6.0 x16
Clock Speeds
Base Clock
1224 MHz
1665 MHz
Boost Clock
2034 MHz
2032 MHz
Memory Clock
1750 MHz
2000 MHz
Memory
Memory Size
8GB
288GB
Memory Type
GDDR6
HBM3e
Memory Bus
128bit
8192bit
Bandwidth
224.0GB/s
8.19TB/s
Render Config
Compute Units
28
—
SM Count
66
148
Shading Units
1792
18944
TMUs
112
592
ROPs
64
24
Tensor Cores
264
592
RT Cores
28
—
L1 Cache
128 KB per Array
256 KB (per SM)
L2 Cache
2 MB
126 MB
L3 Cache
32 MB
—
Theoretical Performance
Pixel Rate
130.2 GPixel/s
48.77 GPixel/s
Texture Rate
227.8 GTexel/s
1202.9 GTexel/s
FP16 (half)
14.58 TFLOPS
76.99 TFLOPS
FP32 (float)
7.290 TFLOPS
76.99 TFLOPS
FP64 (double)
455.6 GFLOPS
1202.9 GFLOPS
Graphics Processor
GPU Name
Navi 23
GB110
GPU Variant
Navi 23 WKS-XM
—
Architecture
RDNA 2.0
Blackwell Ultra
Foundry
TSMC
TSMC
Process Size
7 nm
5 nm
Transistors
11.06 billion
208 billion
Die Size
237 mm²
1628 mm²
Board Design
TDP
90W
1100W
Suggested PSU
600 W
1500 W
Outputs
Portable Device Dependent
No outputs
Power Connectors
None
—
Graphics Features
DirectX
12 Ultimate (12_2)
N/A
OpenGL
4.6
N/A
OpenCL
2.1
3.0
Vulkan
1.3
N/A
CUDA
8.9
10.3
Shader Model
6.7
N/A
▲ Specs Compare
Data sourced from official specifications and benchmark tests.