NVIDIA GeForce RTX 4090 vs NVIDIA A800 PCIe 40 GB

VS

NVIDIA GeForce RTX 4090 NVIDIA A800 PCIe 40 GB

AI GPU We compared a Desktop platform GPU: 24GB VRAM GeForce RTX 4090 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 GeForce RTX 4090 's Advantages

Boost Clock has increased by 79% (2520MHz vs 1410MHz)

9472 additional rendering cores

NVIDIA A800 PCIe 40 GB 's Advantages

More VRAM (40GB vs 24GB)

Larger VRAM bandwidth (1555GB/s vs 1008GB/s)

Lower TDP (250W vs 450W)

Score

Benchmark

FP32 (float)

GeForce RTX 4090 +323%

82.58 TFLOPS

A800 PCIe 40 GB

19.49 TFLOPS

GeForce RTX 4090

VS

A800 PCIe 40 GB

Graphics Card

Sep 2022

Release Date

Nov 2022

GeForce 40

Generation

Ampere

Desktop

Type

AI GPU

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

2235 MHz

Base Clock

765 MHz

2520 MHz

Boost Clock

1410 MHz

1313 MHz

Memory Clock

1215 MHz

Memory

24GB

Memory Size

40GB

GDDR6X

Memory Type

HBM2e

384bit

Memory Bus

5120bit

1008GB/s

Bandwidth

1555GB/s

Render Config

128

SM Count

108

-

Compute Units

-

16384

Shading Units

6912

512

TMUs

432

176

ROPs

160

512

Tensor Cores

432

128

RT Cores

-

128 KB (per SM)

L1 Cache

192 KB (per SM)

72 MB

L2 Cache

40 MB

Theoretical Performance

443.5 GPixel/s

Pixel Rate

225.6 GPixel/s

1290 GTexel/s

Texture Rate

609.1 GTexel/s

82.58 TFLOPS

FP16 (half)

77.97 TFLOPS

82.58 TFLOPS

FP32 (float)

19.49 TFLOPS

1290 GFLOPS

FP64 (double)

9.746 TFLOPS

Graphics Processor

AD102

GPU Name

GA100

AD102-300-A1

GPU Variant

-

Ada Lovelace

Architecture

Ampere

TSMC

Foundry

TSMC

5 nm

Process Size

7 nm

76.3 billion

Transistors

54.2 billion

609 mm²

Die Size

826 mm²

Board Design

450W

TDP

250W

850 W

Suggested PSU

600 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

No outputs

1x 16-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

8.9

CUDA

8.0

6.7

Shader Model

N/A

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