NVIDIA Rubin GPU vs H200 SXM
GPU · Specs Compare
Graphics Card
Release Date
Jan 2026
Nov 2023
Generation
Server Rubin
Hopper
Type
Desktop
AI GPU
Bus Interface
PCIe 6.0 x16
PCIe 5.0 x16
Clock Speeds
Base Clock
700 MHz
1590 MHz
Boost Clock
2267 MHz
1980 MHz
Memory Clock
2695 MHz
1313 MHz
Memory
Memory Size
288GB
141GB
Memory Type
HBM4
HBM3e
Memory Bus
16384bit
5120bit
Bandwidth
22.1TB/s
4800GB/s
Render Config
SM Count
224
132
Shading Units
28672
16896
TMUs
896
528
ROPs
24
24
Tensor Cores
896
528
L1 Cache
256 KB (per SM)
256 KB (per SM)
L2 Cache
128 MB
50 MB
Theoretical Performance
Pixel Rate
54.41 GPixel/s
47.52 GPixel/s
Texture Rate
2031.2 GTexel/s
1045 GTexel/s
FP16 (half)
260.0 TFLOPS
1979 TFLOPS
FP32 (float)
130.0 TFLOPS
67 TFLOPS
FP64 (double)
32.50 TFLOPS
34 TFLOPS
Graphics Processor
GPU Name
GR100
GH200
Architecture
Rubin
Hopper
Foundry
TSMC
TSMC
Process Size
3 nm
4 nm
Transistors
336 billion
80 billion
Die Size
1456 mm²
814 mm²
Board Design
TDP
2300W
700W
Suggested PSU
2700 W
1100 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
10.7
9.0
Shader Model
N/A
N/A
▲ Specs Compare
Data sourced from official specifications and benchmark tests.