NVIDIA RTX A4000 vs NVIDIA A800 PCIe 40 GB

VS

AI GPU We compared a Professional market GPU: 16GB VRAM RTX A4000 and a GPU: 40GB VRAM A800 PCIe 40 GB to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA RTX A4000 's Advantages

Boost Clock has increased by 11% (1560MHz vs 1410MHz)

Lower TDP (140W vs 250W)

NVIDIA A800 PCIe 40 GB 's Advantages

Released 1 years and 7 months late

More VRAM (40GB vs 16GB)

Larger VRAM bandwidth (1555GB/s vs 448.0GB/s)

768 additional rendering cores

Score

Benchmark

FP32 (float)

RTX A4000

19.17 TFLOPS

A800 PCIe 40 GB +1%

19.49 TFLOPS

RTX A4000

VS

A800 PCIe 40 GB

Graphics Card

Apr 2021

Release Date

Nov 2022

Quadro Ampere

Generation

Ampere

Professional

Type

AI GPU

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

735 MHz

Base Clock

765 MHz

1560 MHz

Boost Clock

1410 MHz

1750 MHz

Memory Clock

1215 MHz

Memory

16GB

Memory Size

40GB

GDDR6

Memory Type

HBM2e

256bit

Memory Bus

5120bit

448.0GB/s

Bandwidth

1555GB/s

Render Config

48

SM Count

108

-

Compute Units

-

6144

Shading Units

6912

192

TMUs

432

96

ROPs

160

192

Tensor Cores

432

48

RT Cores

-

128 KB (per SM)

L1 Cache

192 KB (per SM)

4 MB

L2 Cache

40 MB

Theoretical Performance

149.8 GPixel/s

Pixel Rate

225.6 GPixel/s

299.5 GTexel/s

Texture Rate

609.1 GTexel/s

19.17 TFLOPS

FP16 (half)

77.97 TFLOPS

19.17 TFLOPS

FP32 (float)

19.49 TFLOPS

299.5 GFLOPS

FP64 (double)

9.746 TFLOPS

Graphics Processor

GA104

GPU Name

GA100

GA104-875-A1

GPU Variant

-

Ampere

Architecture

Ampere

Samsung

Foundry

TSMC

8 nm

Process Size

7 nm

17.4 billion

Transistors

54.2 billion

392 mm²

Die Size

826 mm²

Board Design

140W

TDP

250W

300 W

Suggested PSU

600 W

4x DisplayPort 1.4a

Outputs

No outputs

1x 6-pin

Power Connectors

8-pin EPS

Graphics Features

12 Ultimate (12_2)

DirectX

N/A

4.6

OpenGL

N/A

3.0

OpenCL

3.0

1.3

Vulkan

N/A

8.6

CUDA

8.0

6.7

Shader Model

N/A

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