NVIDIA A100 PCIe vs NVIDIA A40 PCIe

VS

NVIDIA A100 PCIe NVIDIA A40 PCIe

AI GPU We compared a GPU: 40GB VRAM A100 PCIe and a Desktop platform GPU: 48GB VRAM A40 PCIe to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA A100 PCIe 's Advantages

Larger VRAM bandwidth (1555GB/s vs 695.8GB/s)

Lower TDP (250W vs 300W)

NVIDIA A40 PCIe 's Advantages

Boost Clock has increased by 23% (1740MHz vs 1410MHz)

More VRAM (48GB vs 40GB)

3840 additional rendering cores

Score

Benchmark

FP32 (float)

A100 PCIe

19.49 TFLOPS

A40 PCIe +91%

37.42 TFLOPS

A100 PCIe

VS

A40 PCIe

Graphics Card

Jun 2020

Release Date

Oct 2020

Tesla

Generation

Tesla

AI GPU

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

765 MHz

Base Clock

1305 MHz

1410 MHz

Boost Clock

1740 MHz

1215 MHz

Memory Clock

1812 MHz

Memory

40GB

Memory Size

48GB

HBM2e

Memory Type

GDDR6

5120bit

Memory Bus

384bit

1555GB/s

Bandwidth

695.8GB/s

Render Config

108

SM Count

84

-

Compute Units

-

6912

Shading Units

10752

432

TMUs

336

160

ROPs

112

432

Tensor Cores

336

-

RT Cores

84

192 KB (per SM)

L1 Cache

128 KB (per SM)

40 MB

L2 Cache

6 MB

Theoretical Performance

225.6 GPixel/s

Pixel Rate

194.9 GPixel/s

609.1 GTexel/s

Texture Rate

584.6 GTexel/s

77.97 TFLOPS

FP16 (half)

37.42 TFLOPS

19.49 TFLOPS

FP32 (float)

37.42 TFLOPS

9.746 TFLOPS

FP64 (double)

584.6 GFLOPS

Graphics Processor

GA100

GPU Name

GA102

-

GPU Variant

-

Ampere

Architecture

Ampere

TSMC

Foundry

Samsung

7 nm

Process Size

8 nm

54.2 billion

Transistors

28.3 billion

826 mm²

Die Size

628 mm²

Board Design

250W

TDP

300W

600 W

Suggested PSU

700 W

No outputs

Outputs

3x DisplayPort 1.4a

8-pin EPS

Power Connectors

8-pin EPS

Graphics Features

N/A

DirectX

12 Ultimate (12_2)

N/A

OpenGL

4.6

3.0

OpenCL

3.0

N/A

Vulkan

1.3

8.0

CUDA

8.6

N/A

Shader Model

6.6

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