NVIDIA A40 PCIe vs NVIDIA H100 SXM5 80 GB

VS

AI GPU We compared a Desktop platform GPU: 48GB VRAM A40 PCIe and a GPU: 80GB VRAM H100 SXM5 80 GB to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA A40 PCIe 's Advantages

Lower TDP (300W vs 700W)

NVIDIA H100 SXM5 80 GB 's Advantages

Released 2 years and 5 months late

Boost Clock has increased by 14% (1980MHz vs 1740MHz)

More VRAM (80GB vs 48GB)

Larger VRAM bandwidth (1681GB/s vs 695.8GB/s)

6144 additional rendering cores

Score

Benchmark

FP32 (float)

A40 PCIe

37.42 TFLOPS

H100 SXM5 80 GB +78%

66.91 TFLOPS

A40 PCIe

VS

H100 SXM5 80 GB

Graphics Card

Oct 2020

Release Date

Mar 2023

Tesla

Generation

Tesla Hopper

Desktop

Type

AI GPU

PCIe 4.0 x16

Bus Interface

PCIe 5.0 x16

Clock Speeds

1305 MHz

Base Clock

1590 MHz

1740 MHz

Boost Clock

1980 MHz

1812 MHz

Memory Clock

1313 MHz

Memory

48GB

Memory Size

80GB

GDDR6

Memory Type

HBM3

384bit

Memory Bus

5120bit

695.8GB/s

Bandwidth

1681GB/s

Render Config

84

SM Count

132

-

Compute Units

-

10752

Shading Units

16896

336

TMUs

528

112

ROPs

24

336

Tensor Cores

528

84

RT Cores

-

128 KB (per SM)

L1 Cache

256 KB (per SM)

6 MB

L2 Cache

50 MB

Theoretical Performance

194.9 GPixel/s

Pixel Rate

47.52 GPixel/s

584.6 GTexel/s

Texture Rate

1045 GTexel/s

37.42 TFLOPS

FP16 (half)

267.6 TFLOPS

37.42 TFLOPS

FP32 (float)

66.91 TFLOPS

584.6 GFLOPS

FP64 (double)

33.45 TFLOPS

Graphics Processor

GA102

GPU Name

GH100

-

GPU Variant

-

Ampere

Architecture

Hopper

Samsung

Foundry

TSMC

8 nm

Process Size

4 nm

28.3 billion

Transistors

80 billion

628 mm²

Die Size

814 mm²

Board Design

300W

TDP

700W

700 W

Suggested PSU

1100 W

3x DisplayPort 1.4a

Outputs

No outputs

8-pin EPS

Power Connectors

8-pin EPS

Graphics Features

12 Ultimate (12_2)

DirectX

N/A

4.6

OpenGL

N/A

3.0

OpenCL

3.0

1.3

Vulkan

N/A

8.6

CUDA

9.0

6.6

Shader Model

N/A

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