NVIDIA A100 PCIe vs NVIDIA H100 SXM5 64 GB

VS

NVIDIA A100 PCIe

NVIDIA H100 SXM5 64 GB

AI GPUAI GPU We compared two GPUs: 40GB VRAM A100 PCIe and 64GB VRAM H100 SXM5 64 GB to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA A100 PCIe 's Advantages

Larger VRAM bandwidth (1555GB/s vs 1008GB/s)

Lower TDP (250W vs 700W)

NVIDIA H100 SXM5 64 GB 's Advantages

Released 2 years and 9 months late

Boost Clock has increased by 40% (1980MHz vs 1410MHz)

More VRAM (64GB vs 40GB)

9984 additional rendering cores

Score

Benchmark

FP32 (float)

A100 PCIe

19.49 TFLOPS

H100 SXM5 64 GB +243%

66.91 TFLOPS

A100 PCIe

VS

H100 SXM5 64 GB

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

1665 MHz

1410 MHz

Boost Clock

1980 MHz

1215 MHz

Memory Clock

1313 MHz

Memory

40GB

Memory Size

64GB

HBM2e

Memory Type

HBM3

5120bit

Memory Bus

3072bit

1555GB/s

Bandwidth

1008GB/s

Render Config

-

108

SM Count

132

6912

Shading Units

16896

432

TMUs

528

160

ROPs

24

432

Tensor Cores

528

-

192 KB (per SM)

L1 Cache

256 KB (per SM)

40 MB

L2 Cache

50 MB

-

Theoretical Performance

225.6 GPixel/s

Pixel Rate

47.52 GPixel/s

609.1 GTexel/s

Texture Rate

1045 GTexel/s

77.97 TFLOPS

FP16 (half)

267.6 TFLOPS

19.49 TFLOPS

FP32 (float)

66.91 TFLOPS

9.746 TFLOPS

FP64 (double)

33.45 TFLOPS

Board Design

250W

TDP

700W

600 W

Suggested PSU

1100 W

No outputs

Outputs

No outputs

8-pin EPS

Power Connectors

8-pin EPS

Graphics Processor

GA100

GPU Name

GH100

-

Ampere

Architecture

Hopper

TSMC

Foundry

TSMC

7 nm

Process Size

4 nm

54.2 billion

Transistors

80 billion

826 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

8.0

CUDA

9.0

N/A

Shader Model

N/A

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