NVIDIA B300 vs AMD Radeon RX 5300M
GPU Specs Compare
Graphics Card
Release Date
Sep 2025
Nov 2019
Generation
Server Blackwell
Mobility Radeon
Type
Desktop
Mobile
Bus Interface
PCIe 5.0 x16
PCIe 4.0 x8
Clock Speeds
Base Clock
1665 MHz
1000 MHz
Boost Clock
2032 MHz
1445 MHz
Memory Clock
2000 MHz
1750 MHz
Memory
Memory Size
144GB
3GB
Memory Type
HBM3e
GDDR6
Memory Bus
4096bit
96bit
Bandwidth
4.10TB/s
168.0GB/s
Render Config
SM Count
148
-
Shading Units
18944
1408
TMUs
592
88
ROPs
24
32
Tensor Cores
592
-
L1 Cache
256 KB (per SM)
-
L2 Cache
50 MB
2 MB
Compute Units
-
22
Theoretical Performance
Pixel Rate
48.77 GPixel/s
46.24 GPixel/s
Texture Rate
1202.9 GTexel/s
127.2 GTexel/s
FP16 (half)
1231.8 TFLOPS
8.138 TFLOPS
FP32 (float)
76.99 TFLOPS
4.069 TFLOPS
FP64 (double)
1202.9 GFLOPS
254.3 GFLOPS
Graphics Processor
GPU Name
GB110
Navi 14
Architecture
Blackwell Ultra
RDNA 1.0
Foundry
TSMC
TSMC
Process Size
5 nm
7 nm
Transistors
104 billion
6.4 billion
Die Size
Unknown
158 mm²
GPU Variant
-
Navi 14 XLM
Board Design
TDP
1400W
85W
Suggested PSU
1800 W
-
Outputs
No outputs
No outputs
Power Connectors
-
None
Graphics Features
DirectX
N/A
12 (12_1)
OpenGL
N/A
4.6
OpenCL
3.0
2.1
Vulkan
N/A
1.3
CUDA
10.3
-
Shader Model
N/A
6.5
📊 Benchmark
3DMark Time Spy
-
3,653