NVIDIA A800 PCIe 40 GB vs NVIDIA H800 PCIe 80 GB

VS

NVIDIA A800 PCIe 40 GB

NVIDIA H800 PCIe 80 GB

AI GPUAI GPU We compared two GPUs: 40GB VRAM A800 PCIe 40 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 A800 PCIe 40 GB 's Advantages

Lower TDP (250W vs 350W)

NVIDIA H800 PCIe 80 GB 's Advantages

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

More VRAM (80GB vs 40GB)

Larger VRAM bandwidth (2039GB/s vs 1555GB/s)

7680 additional rendering cores

Score

Benchmark

FP32 (float)

A800 PCIe 40 GB

19.49 TFLOPS

H800 PCIe 80 GB +162%

51.22 TFLOPS

A800 PCIe 40 GB

VS

H800 PCIe 80 GB

Graphics Card

Nov 2022

Release Date

Mar 2023

Ampere

Generation

Tesla Hopper

AI GPU

Type

AI GPU

PCIe 4.0 x16

Bus Interface

PCIe 5.0 x16

Clock Speeds

765 MHz

Base Clock

1095 MHz

1410 MHz

Boost Clock

1755 MHz

1215 MHz

Memory Clock

1593 MHz

Memory

40GB

Memory Size

80GB

HBM2e

Memory Type

HBM2e

5120bit

Memory Bus

5120bit

1555GB/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

250W

TDP

350W

600 W

Suggested PSU

750 W

No outputs

Outputs

No outputs

8-pin EPS

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

Related GPU Comparisons

1

NVIDIA A800 PCIe 40 GB vs NVIDIA H100 SXM5 96 GB

2

NVIDIA A800 PCIe 40 GB vs NVIDIA A100 PCIe

3

NVIDIA A800 PCIe 40 GB vs NVIDIA A100 SXM4 40 GB

4

NVIDIA A800 PCIe 40 GB vs H200 SXM

5

NVIDIA A800 PCIe 40 GB vs NVIDIA H100 CNX

6

NVIDIA A800 PCIe 40 GB vs NVIDIA H100 SXM5 80 GB

7

NVIDIA A800 PCIe 40 GB vs NVIDIA H800 PCIe 80 GB

8

NVIDIA A800 PCIe 40 GB vs NVIDIA A800 PCIe 80 GB

9

NVIDIA A800 PCIe 40 GB vs NVIDIA A800 SXM4 80 GB

10

NVIDIA A800 PCIe 40 GB vs NVIDIA H100 PCIe 96 GB

Related News

1

Intel Confirms Panther Lake Adopts 18A Process, ES0 Samples Already Sent to Customers

2

Complete Lineup of Core Ultra 200HX/H/U and Core 200H/U Revealed: 31 Models to Dazzle the Eyes

3

Amechi Unveils V1 Mini PC: Only 0.33L Volume with 150W Power Consumption

4

iPhone 17 Series Set for Major Design Overhaul: Camera Module Transformed into Sleek Strip

5

The Thinnest iPhone Ever! iPhone 17 Air Reportedly Enters Foxconn's NPI Stage

6

Apple Allegedly Cancels M4 Extreme, Originally Planned for Mac Pro with 64-Core CPU and 160-Core GPU

7

Cyberpunk 2077 Update 2.2: Intel Arrow Lake Gaming Performance Soars by 33%!

8

Intel Finally Achieves Frame Generation! 'F1 24' Becomes the First XeSS 2 Game

9

World's First! Intel Arc B580 Graphics Card Arrives Early

10

Linux Creator Criticizes AMD and Intel's x86 Microarchitecture: A Complete Disaster