NVIDIA B200 SXM6 vs AMD Radeon RX 640 Mobile
GPU · Specs Compare
Graphics Card
Release Date
Nov 2024
May 2019
Generation
Server Blackwell
Mobility Radeon
Type
Desktop
Mobile
Bus Interface
PCIe 6.0 x16
PCIe 3.0 x8
Clock Speeds
Base Clock
120 MHz
1082 MHz
Boost Clock
1830 MHz
1218 MHz
Memory Clock
2000 MHz
1500 MHz
Memory
Memory Size
180GB
2GB
Memory Type
HBM3e
GDDR5
Memory Bus
8192bit
64bit
Bandwidth
8.19TB/s
48.00GB/s
Render Config
SM Count
148
—
Shading Units
18944
640
TMUs
592
40
ROPs
24
16
Tensor Cores
592
—
L1 Cache
256 KB (per SM)
16 KB (per CU)
L2 Cache
126 MB
512 KB
Compute Units
—
10
Theoretical Performance
Pixel Rate
43.92 GPixel/s
19.49 GPixel/s
Texture Rate
1083.4 GTexel/s
48.72 GTexel/s
FP16 (half)
1109.4 TFLOPS
1.559 TFLOPS
FP32 (float)
69.34 TFLOPS
1.559 TFLOPS
FP64 (double)
34.67 TFLOPS
97.44 GFLOPS
Graphics Processor
GPU Name
GB100
Polaris 23
GPU Variant
GB100-886N-A1
Polaris 23 XT
Architecture
Blackwell
GCN 4.0
Foundry
TSMC
GlobalFoundries
Process Size
5 nm
14 nm
Transistors
208 billion
2.2 billion
Die Size
1628 mm²
103 mm²
Board Design
TDP
1000W
50W
Suggested PSU
1400 W
—
Outputs
No outputs
No outputs
Power Connectors
—
None
Graphics Features
DirectX
N/A
12 (12_0)
OpenGL
N/A
4.6
OpenCL
3.0
2.1
Vulkan
N/A
1.2
CUDA
10.0
—
Shader Model
N/A
6.4
▲ Specs Compare
Data sourced from official specifications and benchmark tests.