NVIDIA H100 SXM5 94 GB vs NVIDIA Rubin GPU
GPU Specs Compare
Graphics Card
Release Date
Mar 2023
Jan 2026
Generation
Server Hopper
Server Rubin
Type
AI GPU
Desktop
Bus Interface
PCIe 5.0 x16
PCIe 6.0 x16
Clock Speeds
Base Clock
1350 MHz
700 MHz
Boost Clock
1980 MHz
2267 MHz
Memory Clock
1313 MHz
2695 MHz
Memory
Memory Size
94GB
288GB
Memory Type
HBM3
HBM4
Memory Bus
5120bit
16384bit
Bandwidth
3.36TB/s
22.1TB/s
Render Config
SM Count
132
224
Shading Units
16896
28672
TMUs
528
896
ROPs
24
24
Tensor Cores
528
896
L1 Cache
256 KB (per SM)
256 KB (per SM)
L2 Cache
50 MB
128 MB
Theoretical Performance
Pixel Rate
47.52 GPixel/s
54.41 GPixel/s
Texture Rate
1045.4 GTexel/s
2031.2 GTexel/s
FP16 (half)
267.6 TFLOPS
260.0 TFLOPS
FP32 (float)
66.91 TFLOPS
130.0 TFLOPS
FP64 (double)
33.45 TFLOPS
32.50 TFLOPS
Graphics Processor
GPU Name
GH100
GR100
Architecture
Hopper
Rubin
Foundry
TSMC
TSMC
Process Size
5 nm
3 nm
Transistors
80 billion
336 billion
Die Size
814 mm²
1456 mm²
Board Design
TDP
700W
2300W
Suggested PSU
1100 W
2700 W
Outputs
No outputs
No outputs
Power Connectors
8-pin EPS
-
Graphics Features
DirectX
N/A
N/A
OpenGL
N/A
N/A
OpenCL
3.0
3.0
Vulkan
N/A
N/A
CUDA
9.0
10.7
Shader Model
N/A
N/A