NVIDIA H100 CNX vs NVIDIA H100 SXM5

VS

NVIDIA H100 CNX

NVIDIA H100 SXM5

AI GPUAI GPU We compared two GPUs: 80GB VRAM H100 CNX and 80GB VRAM H100 SXM5 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

Lower TDP (350W vs 700W)

NVIDIA H100 SXM5 's Advantages

Boost Clock has increased by 7% (1980MHz vs 1845MHz)

Larger VRAM bandwidth (3350GB/s vs 2039GB/s)

2304 additional rendering cores

Score

Benchmark

FP32 (float)

H100 CNX

53.84 TFLOPS

H100 SXM5 +24%

66.91 TFLOPS

H100 CNX

VS

H100 SXM5

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

1590 MHz

1845 MHz

Boost Clock

1980 MHz

1593 MHz

Memory Clock

1313 MHz

Memory

80GB

Memory Size

80GB

HBM2e

Memory Type

HBM3

5120bit

Memory Bus

5120bit

2039GB/s

Bandwidth

3350GB/s

Render Config

-

114

SM Count

132

14592

Shading Units

16896

456

TMUs

528

24

ROPs

24

456

Tensor Cores

528

-

256 KB (per SM)

L1 Cache

256 KB (per SM)

50 MB

L2 Cache

50 MB

-

Theoretical Performance

44.28 GPixel/s

Pixel Rate

47.52 GPixel/s

841.3 GTexel/s

Texture Rate

1045 GTexel/s

215.4 TFLOPS

FP16 (half)

267.6 TFLOPS

53.84 TFLOPS

FP32 (float)

66.91 TFLOPS

26.92 TFLOPS

FP64 (double)

33.45 TFLOPS

Board Design

350W

TDP

700W

750 W

Suggested PSU

1100 W

No outputs

Outputs

No outputs

8-pin EPS

Power Connectors

8-pin EPS

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

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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