NVIDIA GeForce 940M vs NVIDIA GeForce 8400M GS

VS

NVIDIA GeForce 940M

NVIDIA GeForce 8400M GS

We compared two Mobile platform GPUs: 2GB VRAM GeForce 940M 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 940M 's Advantages

Released 7 years and 10 months late

Boost Clock1098MHz

More VRAM (2GB vs 256GB)

Larger VRAM bandwidth (14.40GB/s vs 6.400GB/s)

496 additional rendering cores

NVIDIA GeForce 8400M GS 's Advantages

Lower TDP (11W vs 75W)

Score

Benchmark

FP32 (float)

GeForce 940M +4223%

1.124 TFLOPS

GeForce 8400M GS

0.026 TFLOPS

GeForce 940M

VS

GeForce 8400M GS

Graphics Card

Mar 2015

Release Date

May 2007

GeForce 900M

Generation

GeForce 8M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-I

Clock Speeds

1020 MHz

Base Clock

-

1098 MHz

Boost Clock

-

900 MHz

Memory Clock

400 MHz

Memory

2GB

Memory Size

256MB

DDR3

Memory Type

DDR2

64bit

Memory Bus

64bit

14.40GB/s

Bandwidth

6.400GB/s

Render Config

-

SM Count

2

512

Shading Units

16

32

TMUs

8

16

ROPs

4

-

64 KB (per SMM)

L1 Cache

-

2 MB

L2 Cache

16 KB

-

Theoretical Performance

17.57 GPixel/s

Pixel Rate

1.600 GPixel/s

35.14 GTexel/s

Texture Rate

3.200 GTexel/s

-

1124 GFLOPS

FP32 (float)

25.60 GFLOPS

35.14 GFLOPS

FP64 (double)

-

Board Design

75W

TDP

11W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GM107

GPU Name

G86

N16S-GT1-KB-B

GPU Variant

NB8M-GS

Maxwell

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

80 nm

1.87 billion

Transistors

0.21 billion

148 mm²

Die Size

127 mm²

Graphics Features

12 (11_0)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

3.0

OpenCL

1.1

1.3

Vulkan

N/A

5.0

CUDA

1.1

5.1

Shader Model

4.0

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