NVIDIA A100 PCIe vs NVIDIA H100 CNX

VS

NVIDIA A100 PCIe NVIDIA H100 CNX

AI GPUAI GPU We compared two GPUs: 40GB VRAM A100 PCIe and 80GB VRAM H100 CNX to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA A100 PCIe 's Advantages

Lower TDP (250W vs 350W)

NVIDIA H100 CNX 's Advantages

Released 2 years and 9 months late

Boost Clock has increased by 31% (1845MHz vs 1410MHz)

More VRAM (80GB vs 40GB)

Larger VRAM bandwidth (2039GB/s vs 1555GB/s)

7680 additional rendering cores

Score

Benchmark

FP32 (float)

A100 PCIe

19.49 TFLOPS

H100 CNX +176%

53.84 TFLOPS

A100 PCIe

VS

H100 CNX

Graphics Card

Jun 2020

Release Date

Mar 2023

Tesla

Generation

Tesla Hopper

AI GPU

Type

AI GPU

PCIe 4.0 x16

Bus Interface

PCIe 5.0 x16

Clock Speeds

765 MHz

Base Clock

690 MHz

1410 MHz

Boost Clock

1845 MHz

1215 MHz

Memory Clock

1593 MHz

Memory

40GB

Memory Size

80GB

HBM2e

Memory Type

HBM2e

5120bit

Memory Bus

5120bit

1555GB/s

Bandwidth

2039GB/s

Render Config

108

SM Count

114

-

Compute Units

-

6912

Shading Units

14592

432

TMUs

456

160

ROPs

24

432

Tensor Cores

456

-

RT Cores

-

192 KB (per SM)

L1 Cache

256 KB (per SM)

40 MB

L2 Cache

50 MB

Theoretical Performance

225.6 GPixel/s

Pixel Rate

44.28 GPixel/s

609.1 GTexel/s

Texture Rate

841.3 GTexel/s

77.97 TFLOPS

FP16 (half)

215.4 TFLOPS

19.49 TFLOPS

FP32 (float)

53.84 TFLOPS

9.746 TFLOPS

FP64 (double)

26.92 TFLOPS

Graphics Processor

GA100

GPU Name

GH100

-

GPU Variant

-

Ampere

Architecture

Hopper

TSMC

Foundry

TSMC

7 nm

Process Size

4 nm

54.2 billion

Transistors

80 billion

826 mm²

Die Size

814 mm²

Board Design

250W

TDP

350W

600 W

Suggested PSU

750 W

No outputs

Outputs

No outputs

8-pin EPS

Power Connectors

8-pin EPS

Graphics Features

N/A

DirectX

N/A

OpenGL

N/A

3.0

OpenCL

3.0

N/A

Vulkan

N/A

8.0

CUDA

9.0

N/A

Shader Model

N/A

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