NVIDIA B300 SXM6 AC vs AMD Radeon RX 5300 XT
GPU Specs Compare
Graphics Card
Release Date
Sep 2025
Oct 2019
Generation
Server Blackwell
Navi
Type
Desktop
Desktop
Bus Interface
PCIe 6.0 x16
PCIe 4.0 x8
Clock Speeds
Base Clock
1665 MHz
1670 MHz
Boost Clock
2032 MHz
1845 MHz
Memory Clock
2000 MHz
1750 MHz
Memory
Memory Size
288GB
4GB
Memory Type
HBM3e
GDDR5
Memory Bus
8192bit
128bit
Bandwidth
8.19TB/s
112.0GB/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
126 MB
2 MB
Compute Units
-
22
Theoretical Performance
Pixel Rate
48.77 GPixel/s
59.04 GPixel/s
Texture Rate
1202.9 GTexel/s
162.4 GTexel/s
FP16 (half)
76.99 TFLOPS
10.39 TFLOPS
FP32 (float)
76.99 TFLOPS
5.196 TFLOPS
FP64 (double)
1202.9 GFLOPS
324.7 GFLOPS
Graphics Processor
GPU Name
GB110
Navi 14
Architecture
Blackwell Ultra
RDNA 1.0
Foundry
TSMC
TSMC
Process Size
5 nm
7 nm
Transistors
208 billion
6.4 billion
Die Size
1628 mm²
158 mm²
GPU Variant
-
Navi 14 XL
Board Design
TDP
1100W
100W
Suggested PSU
1500 W
300 W
Outputs
No outputs
1x HDMI 2.13x DisplayPort 1.4a
Power Connectors
-
1x 6-pin
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