Home GPU Comparison NVIDIA H100 CNX vs NVIDIA H100 PCIe

NVIDIA H100 CNX vs NVIDIA H100 PCIe

AI GPUAI GPU We compared two GPUs: 80GB VRAM H100 CNX and 80GB VRAM H100 PCIe to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA H100 CNX 's Advantages
Released 1 years late
Boost Clock has increased by 5% (1845MHz vs 1755MHz)

Score

Benchmark

FP32 (float)
H100 CNX +5%
53.84 TFLOPS
H100 PCIe
51.22 TFLOPS
VS

Graphics Card

Mar 2023
Release Date
Mar 2022
Tesla Hopper
Generation
Tesla Hopper
AI GPU
Type
AI GPU
PCIe 5.0 x16
Bus Interface
PCIe 5.0 x16

Clock Speeds

690 MHz
Base Clock
1095 MHz
1845 MHz
Boost Clock
1755 MHz
1593 MHz
Memory Clock
1593 MHz

Memory

80GB
Memory Size
80GB
HBM2e
Memory Type
HBM2e
5120bit
Memory Bus
5120bit
2039GB/s
Bandwidth
2039GB/s

Render Config

-
-
-
114
SM Count
114
14592
Shading Units
14592
456
TMUs
456
24
ROPs
24
456
Tensor Cores
456
-
-
-
256 KB (per SM)
L1 Cache
256 KB (per SM)
50 MB
L2 Cache
50 MB
-
-
-

Theoretical Performance

44.28 GPixel/s
Pixel Rate
42.12 GPixel/s
841.3 GTexel/s
Texture Rate
800.3 GTexel/s
215.4 TFLOPS
FP16 (half)
204.9 TFLOPS
53.84 TFLOPS
FP32 (float)
51.22 TFLOPS
26.92 TFLOPS
FP64 (double)
25.61 TFLOPS

Board Design

350W
TDP
350W
750 W
Suggested PSU
750 W
No outputs
Outputs
No outputs
8-pin EPS
Power Connectors
1x 16-pin

Graphics Processor

GH100
GPU Name
GH100
-
-
-
Hopper
Architecture
Hopper
TSMC
Foundry
TSMC
4 nm
Process Size
4 nm
80 billion
Transistors
80 billion
814 mm²
Die Size
814 mm²

Graphics Features

N/A
DirectX
N/A
N/A
OpenGL
N/A
3.0
OpenCL
3.0
N/A
Vulkan
N/A
9.0
CUDA
9.0
N/A
Shader Model
N/A

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