NVIDIA A40 PCIe vs NVIDIA RTX A4000 Mobile

VS

We compared a Desktop platform GPU: 48GB VRAM A40 PCIe and a Professional market GPU: 8GB VRAM RTX A4000 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA A40 PCIe 's Advantages

Boost Clock has increased by 4% (1740MHz vs 1680MHz)

More VRAM (48GB vs 8GB)

Larger VRAM bandwidth (695.8GB/s vs 384.0GB/s)

5632 additional rendering cores

NVIDIA RTX A4000 Mobile 's Advantages

Released 6 months late

Lower TDP (115W vs 300W)

Score

Benchmark

FP32 (float)

A40 PCIe +117%

37.42 TFLOPS

RTX A4000 Mobile

17.2 TFLOPS

Blender

A40 PCIe +55%

4170

RTX A4000 Mobile

2682

A40 PCIe

VS

RTX A4000 Mobile

Graphics Card

Oct 2020

Release Date

Apr 2021

Tesla

Generation

Quadro Ampere-M

Desktop

Type

Professional

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

1305 MHz

Base Clock

1140 MHz

1740 MHz

Boost Clock

1680 MHz

1812 MHz

Memory Clock

1500 MHz

Memory

48GB

Memory Size

8GB

GDDR6

Memory Type

GDDR6

384bit

Memory Bus

256bit

695.8GB/s

Bandwidth

384.0GB/s

Render Config

84

SM Count

40

-

Compute Units

-

10752

Shading Units

5120

336

TMUs

160

112

ROPs

80

336

Tensor Cores

160

84

RT Cores

40

128 KB (per SM)

L1 Cache

128 KB (per SM)

6 MB

L2 Cache

4 MB

Theoretical Performance

194.9 GPixel/s

Pixel Rate

134.4 GPixel/s

584.6 GTexel/s

Texture Rate

268.8 GTexel/s

37.42 TFLOPS

FP16 (half)

17.20 TFLOPS

37.42 TFLOPS

FP32 (float)

17.20 TFLOPS

584.6 GFLOPS

FP64 (double)

268.8 GFLOPS

Graphics Processor

GA102

GPU Name

GA104

-

GPU Variant

-

Ampere

Architecture

Ampere

Samsung

Foundry

Samsung

8 nm

Process Size

8 nm

28.3 billion

Transistors

17.4 billion

628 mm²

Die Size

392 mm²

Board Design

300W

TDP

115W

700 W

Suggested PSU

-

3x DisplayPort 1.4a

Outputs

Portable Device Dependent

8-pin EPS

Power Connectors

None

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

6.7

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