NVIDIA H100 SXM5 64 GB vs NVIDIA A800 PCIe 80 GB

VS

NVIDIA H100 SXM5 64 GB

NVIDIA A800 PCIe 80 GB

AI GPUAI GPU We compared two GPUs: 64GB VRAM H100 SXM5 64 GB and 80GB VRAM A800 PCIe 80 GB to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA H100 SXM5 64 GB 's Advantages

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

9984 additional rendering cores

NVIDIA A800 PCIe 80 GB 's Advantages

More VRAM (80GB vs 64GB)

Larger VRAM bandwidth (2039GB/s vs 1008GB/s)

Lower TDP (250W vs 700W)

Score

Benchmark

FP32 (float)

H100 SXM5 64 GB +243%

66.91 TFLOPS

A800 PCIe 80 GB

19.49 TFLOPS

H100 SXM5 64 GB

VS

A800 PCIe 80 GB

Graphics Card

Mar 2023

Release Date

Nov 2022

Tesla Hopper

Generation

Ampere

AI GPU

Type

AI GPU

PCIe 5.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

1665 MHz

Base Clock

1065 MHz

1980 MHz

Boost Clock

1410 MHz

1313 MHz

Memory Clock

1593 MHz

Memory

64GB

Memory Size

80GB

HBM3

Memory Type

HBM2e

3072bit

Memory Bus

5120bit

1008GB/s

Bandwidth

2039GB/s

Render Config

-

132

SM Count

108

16896

Shading Units

6912

528

TMUs

432

24

ROPs

160

528

Tensor Cores

432

-

256 KB (per SM)

L1 Cache

192 KB (per SM)

50 MB

L2 Cache

80 MB

-

Theoretical Performance

47.52 GPixel/s

Pixel Rate

225.6 GPixel/s

1045 GTexel/s

Texture Rate

609.1 GTexel/s

267.6 TFLOPS

FP16 (half)

77.97 TFLOPS

66.91 TFLOPS

FP32 (float)

19.49 TFLOPS

33.45 TFLOPS

FP64 (double)

9.746 TFLOPS

Board Design

700W

TDP

250W

1100 W

Suggested PSU

600 W

No outputs

Outputs

No outputs

8-pin EPS

Power Connectors

8-pin EPS

Graphics Processor

GH100

GPU Name

GA100

-

Hopper

Architecture

Ampere

TSMC

Foundry

TSMC

4 nm

Process Size

7 nm

80 billion

Transistors

54.2 billion

814 mm²

Die Size

826 mm²

Graphics Features

N/A

DirectX

N/A

OpenGL

N/A

3.0

OpenCL

3.0

N/A

Vulkan

N/A

9.0

CUDA

8.0

N/A

Shader Model

N/A

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