NVIDIA GeForce 940MX vs NVIDIA GeForce 8400M GT

VS

NVIDIA GeForce 940MX

NVIDIA GeForce 8400M GT

We compared two Mobile platform GPUs: 2GB VRAM GeForce 940MX and 512MB VRAM GeForce 8400M GT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 940MX 's Advantages

Released 8 years and 8 months late

Boost Clock1242MHz

More VRAM (2GB vs 512GB)

368 additional rendering cores

NVIDIA GeForce 8400M GT 's Advantages

Larger VRAM bandwidth (19.20GB/s vs 16.02GB/s)

Lower TDP (14W vs 23W)

Score

Benchmark

FP32 (float)

GeForce 940MX +3189%

0.954 TFLOPS

GeForce 8400M GT

0.029 TFLOPS

GeForce 940MX

VS

GeForce 8400M GT

Graphics Card

Jan 2016

Release Date

May 2007

GeForce 900M

Generation

GeForce 8M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 1.0 x16

Clock Speeds

1004 MHz

Base Clock

-

1242 MHz

Boost Clock

-

1001 MHz

Memory Clock

600 MHz

Memory

2GB

Memory Size

512MB

DDR3

Memory Type

GDDR3

64bit

Memory Bus

128bit

16.02GB/s

Bandwidth

19.20GB/s

Render Config

-

SM Count

2

384

Shading Units

16

24

TMUs

8

ROPs

4

-

64 KB (per SMM)

L1 Cache

-

1024 KB

L2 Cache

32 KB

-

Theoretical Performance

9.936 GPixel/s

Pixel Rate

1.800 GPixel/s

29.81 GTexel/s

Texture Rate

3.600 GTexel/s

-

953.9 GFLOPS

FP32 (float)

28.80 GFLOPS

29.81 GFLOPS

FP64 (double)

-

Board Design

23W

TDP

14W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

GM108

GPU Name

G86

N16S-GTR-S

GPU Variant

G86-603-A2

Maxwell

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

80 nm

Unknown

Transistors

0.21 billion

Unknown

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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