NVIDIA A16 PCIe vs NVIDIA A40 PCIe

VS

NVIDIA A16 PCIe

NVIDIA A40 PCIe

We compared two Desktop platform GPUs: 16GB VRAM A16 PCIe and 48GB VRAM A40 PCIe to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA A16 PCIe 's Advantages

Released 6 months late

Lower TDP (250W vs 300W)

NVIDIA A40 PCIe 's Advantages

Boost Clock has increased by 3% (1740MHz vs 1695MHz)

More VRAM (48GB vs 16GB)

Larger VRAM bandwidth (695.8GB/s vs 231.9GB/s)

9472 additional rendering cores

Score

Benchmark

FP32 (float)

A16 PCIe

4.339 TFLOPS

A40 PCIe +762%

37.42 TFLOPS

Blender

A16 PCIe

510

A40 PCIe +717%

4170

A16 PCIe

VS

A40 PCIe

Graphics Card

Apr 2021

Release Date

Oct 2020

Tesla

Generation

Tesla

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

PCIe 4.0 x16

Clock Speeds

885 MHz

Base Clock

1305 MHz

1695 MHz

Boost Clock

1740 MHz

1812 MHz

Memory Clock

1812 MHz

Memory

16GB

Memory Size

48GB

GDDR6

Memory Type

GDDR6

128bit

Memory Bus

384bit

231.9GB/s

Bandwidth

695.8GB/s

Render Config

-

10

SM Count

84

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

54.24 GPixel/s

Pixel Rate

194.9 GPixel/s

67.80 GTexel/s

Texture Rate

584.6 GTexel/s

4.339 TFLOPS

FP16 (half)

37.42 TFLOPS

4.339 TFLOPS

FP32 (float)

37.42 TFLOPS

135.6 GFLOPS

FP64 (double)

584.6 GFLOPS

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 Processor

GA107

GPU Name

GA102

-

Ampere

Architecture

Ampere

Samsung

Foundry

Samsung

8 nm

Process Size

8 nm

Unknown

Transistors

28.3 billion

Unknown

Die Size

628 mm²

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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