NVIDIA GeForce RTX 4080 vs NVIDIA A40 PCIe

VS

We compared two Desktop platform GPUs: 16GB VRAM GeForce RTX 4080 and 48GB VRAM A40 PCIe to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 4080 's Advantages

Released 1 years and 11 months late

Boost Clock has increased by 44% (2505MHz vs 1740MHz)

Larger VRAM bandwidth (716.8GB/s vs 695.8GB/s)

NVIDIA A40 PCIe 's Advantages

More VRAM (48GB vs 16GB)

1024 additional rendering cores

Lower TDP (300W vs 320W)

Score

Benchmark

FP32 (float)

GeForce RTX 4080 +30%

48.74 TFLOPS

A40 PCIe

37.42 TFLOPS

GeForce RTX 4080

VS

A40 PCIe

Graphics Card

Sep 2022

Release Date

Oct 2020

GeForce 40

Generation

Tesla

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

2205 MHz

Base Clock

1305 MHz

2505 MHz

Boost Clock

1740 MHz

1400 MHz

Memory Clock

1812 MHz

Memory

16GB

Memory Size

48GB

GDDR6X

Memory Type

GDDR6

256bit

Memory Bus

384bit

716.8GB/s

Bandwidth

695.8GB/s

Render Config

76

SM Count

84

-

Compute Units

-

9728

Shading Units

10752

304

TMUs

336

112

ROPs

112

304

Tensor Cores

336

76

RT Cores

84

128 KB (per SM)

L1 Cache

128 KB (per SM)

64 MB

L2 Cache

6 MB

Theoretical Performance

280.6 GPixel/s

Pixel Rate

194.9 GPixel/s

761.5 GTexel/s

Texture Rate

584.6 GTexel/s

48.74 TFLOPS

FP16 (half)

37.42 TFLOPS

48.74 TFLOPS

FP32 (float)

37.42 TFLOPS

761.5 GFLOPS

FP64 (double)

584.6 GFLOPS

Graphics Processor

AD103

GPU Name

GA102

AD103-300-A1

GPU Variant

-

Ada Lovelace

Architecture

Ampere

TSMC

Foundry

Samsung

5 nm

Process Size

8 nm

45.9 billion

Transistors

28.3 billion

379 mm²

Die Size

628 mm²

Board Design

320W

TDP

300W

700 W

Suggested PSU

700 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

3x DisplayPort 1.4a

1x 16-pin

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

8.9

CUDA

8.6

6.7

Shader Model

6.6

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