NVIDIA A2 vs NVIDIA A40 PCIe

VS

NVIDIA A2 NVIDIA A40 PCIe

We compared two Desktop platform GPUs: 16GB VRAM A2 and 48GB VRAM A40 PCIe to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA A2 's Advantages

Released 1 years and 1 months late

Boost Clock has increased by 2% (1770MHz vs 1740MHz)

Lower TDP (60W vs 300W)

NVIDIA A40 PCIe 's Advantages

More VRAM (48GB vs 16GB)

Larger VRAM bandwidth (695.8GB/s vs 200.1GB/s)

9472 additional rendering cores

Score

Benchmark

FP32 (float)

A2

4.531 TFLOPS

A40 PCIe +725%

37.42 TFLOPS

A2

VS

A40 PCIe

Graphics Card

Nov 2021

Release Date

Oct 2020

Quadro

Generation

Tesla

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

PCIe 4.0 x16

Clock Speeds

1440 MHz

Base Clock

1305 MHz

1770 MHz

Boost Clock

1740 MHz

1563 MHz

Memory Clock

1812 MHz

Memory

16GB

Memory Size

48GB

GDDR6

Memory Type

GDDR6

128bit

Memory Bus

384bit

200.1GB/s

Bandwidth

695.8GB/s

Render Config

10

SM Count

84

-

Compute Units

-

1280

Shading Units

10752

40

TMUs

336

32

ROPs

112

40

Tensor Cores

336

10

RT Cores

84

128 KB (per SM)

L1 Cache

128 KB (per SM)

2 MB

L2 Cache

6 MB

Theoretical Performance

56.64 GPixel/s

Pixel Rate

194.9 GPixel/s

70.80 GTexel/s

Texture Rate

584.6 GTexel/s

4.531 TFLOPS

FP16 (half)

37.42 TFLOPS

4.531 TFLOPS

FP32 (float)

37.42 TFLOPS

70.80 GFLOPS

FP64 (double)

584.6 GFLOPS

Graphics Processor

GA107

GPU Name

GA102

-

GPU Variant

-

Ampere

Architecture

Ampere

Samsung

Foundry

Samsung

8 nm

Process Size

8 nm

Unknown

Transistors

28.3 billion

Unknown

Die Size

628 mm²

Board Design

60W

TDP

300W

250 W

Suggested PSU

700 W

No outputs

Outputs

3x DisplayPort 1.4a

None

Power Connectors

8-pin EPS

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.3

8.6

CUDA

8.6

6.6

Shader Model

6.6

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