AMD Radeon Pro 5300M vs NVIDIA B300 SXM6 AC
GPU · Specs Compare
Graphics Card
Release Date
Nov 2019
Sep 2025
Generation
Radeon Pro Mac
Server Blackwell
Type
Mobile
Desktop
Bus Interface
PCIe 4.0 x8
PCIe 6.0 x16
Clock Speeds
Base Clock
1000 MHz
1665 MHz
Boost Clock
1250 MHz
2032 MHz
Memory Clock
1500 MHz
2000 MHz
Memory
Memory Size
4GB
288GB
Memory Type
GDDR6
HBM3e
Memory Bus
128bit
8192bit
Bandwidth
192.0GB/s
8.19TB/s
Render Config
Compute Units
20
—
Shading Units
1280
18944
TMUs
80
592
ROPs
32
24
L2 Cache
2 MB
126 MB
SM Count
—
148
Tensor Cores
—
592
L1 Cache
—
256 KB (per SM)
Theoretical Performance
Pixel Rate
40.00 GPixel/s
48.77 GPixel/s
Texture Rate
100.0 GTexel/s
1202.9 GTexel/s
FP16 (half)
6.400 TFLOPS
76.99 TFLOPS
FP32 (float)
3.200 TFLOPS
76.99 TFLOPS
FP64 (double)
200.0 GFLOPS
1202.9 GFLOPS
Graphics Processor
GPU Name
Navi 14
GB110
GPU Variant
Navi 14 PROA
—
Architecture
RDNA 1.0
Blackwell Ultra
Foundry
TSMC
TSMC
Process Size
7 nm
5 nm
Transistors
6.4 billion
208 billion
Die Size
158 mm²
1628 mm²
Board Design
TDP
85W
1100W
Outputs
No outputs
No outputs
Power Connectors
None
—
Suggested PSU
—
1500 W
Graphics Features
DirectX
12 (12_1)
N/A
OpenGL
4.6
N/A
OpenCL
2.1
3.0
Vulkan
1.3
N/A
Shader Model
6.5
N/A
CUDA
—
10.3
Benchmark
3DMark Time Spy
3,404
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.