NVIDIA A100 SXM4 80 GB vs NVIDIA H800 PCIe 80 GB

VS

NVIDIA A100 SXM4 80 GB

NVIDIA H800 PCIe 80 GB

AI GPUAI GPU We compared two GPUs: 80GB VRAM A100 SXM4 80 GB and 80GB VRAM H800 PCIe 80 GB to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA H800 PCIe 80 GB 's Advantages

Released 2 years and 4 months late

Boost Clock has increased by 24% (1755MHz vs 1410MHz)

7680 additional rendering cores

Lower TDP (350W vs 400W)

Score

Benchmark

FP32 (float)

A100 SXM4 80 GB

19.49 TFLOPS

H800 PCIe 80 GB +162%

51.22 TFLOPS

A100 SXM4 80 GB

VS

H800 PCIe 80 GB

Graphics Card

Nov 2020

Release Date

Mar 2023

Tesla Ampere

Generation

Tesla Hopper

AI GPU

Type

AI GPU

PCIe 4.0 x16

Bus Interface

PCIe 5.0 x16

Clock Speeds

1275 MHz

Base Clock

1095 MHz

1410 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

-

108

SM Count

114

6912

Shading Units

14592

432

TMUs

456

160

ROPs

24

432

Tensor Cores

456

-

192 KB (per SM)

L1 Cache

256 KB (per SM)

40 MB

L2 Cache

50 MB

-

Theoretical Performance

225.6 GPixel/s

Pixel Rate

42.12 GPixel/s

609.1 GTexel/s

Texture Rate

800.3 GTexel/s

77.97 TFLOPS

FP16 (half)

204.9 TFLOPS

19.49 TFLOPS

FP32 (float)

51.22 TFLOPS

9.746 TFLOPS

FP64 (double)

25.61 TFLOPS

Board Design

400W

TDP

350W

800 W

Suggested PSU

750 W

No outputs

Outputs

No outputs

None

Power Connectors

1x 16-pin

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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