NVIDIA GeForce RTX 4090 vs NVIDIA GeForce 8400 GS

VS

NVIDIA GeForce RTX 4090

NVIDIA GeForce 8400 GS

We compared two Desktop platform GPUs: 24GB VRAM GeForce RTX 4090 and 256MB VRAM GeForce 8400 GS to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 4090 's Advantages

Released 15 years and 5 months late

Boost Clock2520MHz

More VRAM (24GB vs 256GB)

Larger VRAM bandwidth (1.01TB/s vs 6.400GB/s)

16368 additional rendering cores

NVIDIA GeForce 8400 GS 's Advantages

Lower TDP (40W vs 450W)

Score

Benchmark

FP32 (float)

GeForce RTX 4090 +284658%

82.58 TFLOPS

GeForce 8400 GS

0.029 TFLOPS

GeForce RTX 4090

VS

GeForce 8400 GS

Graphics Card

Sep 2022

Release Date

Apr 2007

GeForce 40

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

2235 MHz

Base Clock

-

2520 MHz

Boost Clock

-

1313 MHz

Memory Clock

400 MHz

Memory

24GB

Memory Size

256MB

GDDR6X

Memory Type

DDR2

384bit

Memory Bus

64bit

1.01TB/s

Bandwidth

6.400GB/s

Render Config

-

128

SM Count

2

16384

Shading Units

16

512

TMUs

8

176

ROPs

4

512

Tensor Cores

-

128

RT Cores

-

128 KB (per SM)

L1 Cache

-

72 MB

L2 Cache

16 KB

-

Theoretical Performance

443.5 GPixel/s

Pixel Rate

1.836 GPixel/s

1290 GTexel/s

Texture Rate

3.672 GTexel/s

82.58 TFLOPS

FP16 (half)

-

82.58 TFLOPS

FP32 (float)

29.38 GFLOPS

1290 GFLOPS

FP64 (double)

-

Board Design

450W

TDP

40W

850 W

Suggested PSU

200 W

1x HDMI 2.13x DisplayPort 1.4a

Outputs

1x DVI 1x VGA 1x S-Video

1x 16-pin

Power Connectors

None

Graphics Processor

AD102

GPU Name

G86

AD102-300-A1

GPU Variant

G86-213-A2

Ada Lovelace

Architecture

Tesla

TSMC

Foundry

TSMC

5 nm

Process Size

80 nm

76.3 billion

Transistors

0.21 billion

609 mm²

Die Size

127 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

3.0

OpenCL

1.1

1.3

Vulkan

N/A

8.9

CUDA

1.1

6.8

Shader Model

4.0

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