NVIDIA GeForce RTX 4090 Mobile vs NVIDIA GeForce 8400M GS

VS

NVIDIA GeForce RTX 4090 Mobile

NVIDIA GeForce 8400M GS

We compared two Mobile platform GPUs: 16GB VRAM GeForce RTX 4090 Mobile and 256MB VRAM GeForce 8400M GS to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 4090 Mobile 's Advantages

Released 15 years and 8 months late

Boost Clock1695MHz

More VRAM (16GB vs 256GB)

Larger VRAM bandwidth (576.0GB/s vs 6.400GB/s)

9712 additional rendering cores

NVIDIA GeForce 8400M GS 's Advantages

Lower TDP (11W vs 80W)

Score

Benchmark

FP32 (float)

GeForce RTX 4090 Mobile +126746%

32.98 TFLOPS

GeForce 8400M GS

0.026 TFLOPS

GeForce RTX 4090 Mobile

VS

GeForce 8400M GS

Graphics Card

Jan 2023

Release Date

May 2007

GeForce 40 Mobile

Generation

GeForce 8M

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

MXM-I

Clock Speeds

1335 MHz

Base Clock

-

1695 MHz

Boost Clock

-

2250 MHz

Memory Clock

400 MHz

Memory

16GB

Memory Size

256MB

GDDR6

Memory Type

DDR2

256bit

Memory Bus

64bit

576.0GB/s

Bandwidth

6.400GB/s

Render Config

-

76

SM Count

2

9728

Shading Units

16

304

TMUs

8

112

ROPs

4

304

Tensor Cores

-

76

RT Cores

-

128 KB (per SM)

L1 Cache

-

64 MB

L2 Cache

16 KB

-

Theoretical Performance

189.8 GPixel/s

Pixel Rate

1.600 GPixel/s

515.3 GTexel/s

Texture Rate

3.200 GTexel/s

32.98 TFLOPS

FP16 (half)

-

32.98 TFLOPS

FP32 (float)

25.60 GFLOPS

515.3 GFLOPS

FP64 (double)

-

Board Design

80-150W

TDP

11W

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

AD103

GPU Name

G86

GN21-X11

GPU Variant

NB8M-GS

Ada Lovelace

Architecture

Tesla

TSMC

Foundry

TSMC

5 nm

Process Size

80 nm

45.9 billion

Transistors

0.21 billion

379 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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