NVIDIA A100 PCIe 80 GB vs NVIDIA H800 PCIe 80 GB

VS

NVIDIA A100 PCIe 80 GB NVIDIA H800 PCIe 80 GB

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

Main Differences

NVIDIA A100 PCIe 80 GB 's Advantages

Lower TDP (300W vs 350W)

NVIDIA H800 PCIe 80 GB 's Advantages

Released 1 years and 9 months late

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

Larger VRAM bandwidth (2039GB/s vs 1935GB/s)

7680 additional rendering cores

Score

Benchmark

FP32 (float)

A100 PCIe 80 GB

19.49 TFLOPS

H800 PCIe 80 GB +162%

51.22 TFLOPS

A100 PCIe 80 GB

VS

H800 PCIe 80 GB

Graphics Card

Jun 2021

Release Date

Mar 2023

Tesla Ampere

Generation

Tesla Hopper

Professional

Type

AI GPU

PCIe 4.0 x16

Bus Interface

PCIe 5.0 x16

Clock Speeds

1065 MHz

Base Clock

1095 MHz

1410 MHz

Boost Clock

1755 MHz

1512 MHz

Memory Clock

1593 MHz

Memory

80GB

Memory Size

80GB

HBM2e

Memory Type

HBM2e

5120bit

Memory Bus

5120bit

1935GB/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)

80 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

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

300W

TDP

350W

700 W

Suggested PSU

750 W

No outputs

Outputs

No outputs

8-pin EPS

Power Connectors

1x 16-pin

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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