NVIDIA A40 PCIe vs NVIDIA RTX 4000 Ada Generation

VS

NVIDIA A40 PCIe NVIDIA RTX 4000 Ada Generation

We compared two Desktop platform GPUs: 48GB VRAM A40 PCIe and 20GB VRAM RTX 4000 Ada Generation to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA A40 PCIe 's Advantages

More VRAM (48GB vs 20GB)

Larger VRAM bandwidth (695.8GB/s vs 360.0GB/s)

4608 additional rendering cores

NVIDIA RTX 4000 Ada Generation 's Advantages

Released 2 years and 10 months late

Boost Clock has increased by 25% (2175MHz vs 1740MHz)

Lower TDP (130W vs 300W)

Score

Benchmark

FP32 (float)

A40 PCIe +39%

37.42 TFLOPS

RTX 4000 Ada Generation

26.73 TFLOPS

Blender

A40 PCIe

4170

RTX 4000 Ada Generation +16%

4876

A40 PCIe

VS

RTX 4000 Ada Generation

Graphics Card

Oct 2020

Release Date

Aug 2023

Tesla

Generation

Quadro Ada

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

1305 MHz

Base Clock

1500 MHz

1740 MHz

Boost Clock

2175 MHz

1812 MHz

Memory Clock

2250 MHz

Memory

48GB

Memory Size

20GB

GDDR6

Memory Type

GDDR6

384bit

Memory Bus

160bit

695.8GB/s

Bandwidth

360.0GB/s

Render Config

84

SM Count

48

-

Compute Units

-

10752

Shading Units

6144

336

TMUs

192

112

ROPs

80

336

Tensor Cores

192

84

RT Cores

48

128 KB (per SM)

L1 Cache

128 KB (per SM)

6 MB

L2 Cache

48 MB

Theoretical Performance

194.9 GPixel/s

Pixel Rate

174.0 GPixel/s

584.6 GTexel/s

Texture Rate

417.6 GTexel/s

37.42 TFLOPS

FP16 (half)

26.73 TFLOPS

37.42 TFLOPS

FP32 (float)

26.73 TFLOPS

584.6 GFLOPS

FP64 (double)

417.6 GFLOPS

Graphics Processor

GA102

GPU Name

AD104

-

GPU Variant

-

Ampere

Architecture

Ada Lovelace

Samsung

Foundry

TSMC

8 nm

Process Size

5 nm

28.3 billion

Transistors

35.8 billion

628 mm²

Die Size

294 mm²

Board Design

300W

TDP

130W

700 W

Suggested PSU

300 W

3x DisplayPort 1.4a

Outputs

4x mini-DisplayPort 1.4a

8-pin EPS

Power Connectors

1x 16-pin

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

8.9

6.6

Shader Model

6.7

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