NVIDIA GeForce RTX 5080 Mobile vs NVIDIA GeForce 8400M G

VS

NVIDIA GeForce RTX 5080 Mobile

NVIDIA GeForce 8400M G

We compared two Mobile platform GPUs: 16GB VRAM GeForce RTX 5080 Mobile and 256MB VRAM GeForce 8400M G to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 5080 Mobile 's Advantages

Released 17 years and 8 months late

Boost Clock2000MHz

More VRAM (16GB vs 256GB)

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

8184 additional rendering cores

NVIDIA GeForce 8400M G 's Advantages

Lower TDP (10W vs 175W)

Score

Benchmark

FP32 (float)

GeForce RTX 5080 Mobile +251976%

32.77 TFLOPS

GeForce 8400M G

0.013 TFLOPS

GeForce RTX 5080 Mobile

VS

GeForce 8400M G

Graphics Card

Jan 2025

Release Date

May 2007

GeForce 50 Mobile

Generation

GeForce 8M

Mobile

Type

Mobile

PCIe 5.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

1500 MHz

Base Clock

-

2000 MHz

Boost Clock

-

2500 MHz

Memory Clock

400 MHz

Memory

16GB

Memory Size

256MB

GDDR7

Memory Type

GDDR3

256bit

Memory Bus

64bit

1.01TB/s

Bandwidth

6.400GB/s

Render Config

-

64

SM Count

1

8192

Shading Units

8

256

TMUs

8

96

ROPs

4

256

Tensor Cores

-

64

RT Cores

-

128 KB (per SM)

L1 Cache

-

64 MB

L2 Cache

16 KB

-

Theoretical Performance

192.0 GPixel/s

Pixel Rate

1.600 GPixel/s

512.0 GTexel/s

Texture Rate

3.200 GTexel/s

32.77 TFLOPS

FP16 (half)

-

32.77 TFLOPS

FP32 (float)

12.80 GFLOPS

512.0 GFLOPS

FP64 (double)

-

Board Design

175W

TDP

10W

550 W

Suggested PSU

-

1x HDMI 2.13x DisplayPort 1.4a

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

GB203

GPU Name

G86

-

GPU Variant

NB8M-SE

Blackwell 2.0

Architecture

Tesla

TSMC

Foundry

TSMC

4 nm

Process Size

80 nm

Unknown

Transistors

0.21 billion

377 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

10.1

CUDA

1.1

6.8

Shader Model

4.0

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