NVIDIA GeForce 8400M GS vs NVIDIA GeForce 940A

VS

NVIDIA GeForce 8400M GS

NVIDIA GeForce 940A

We compared two Mobile platform GPUs: 256MB VRAM GeForce 8400M GS and 1024MB VRAM GeForce 940A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 8400M GS 's Advantages

Lower TDP (11W vs 33W)

NVIDIA GeForce 940A 's Advantages

Released 7 years and 10 months late

Boost Clock1124MHz

More VRAM (1024GB vs 256GB)

Larger VRAM bandwidth (16.02GB/s vs 6.400GB/s)

368 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 8400M GS

0.026 TFLOPS

GeForce 940A +3219%

0.863 TFLOPS

GeForce 8400M GS

VS

GeForce 940A

Graphics Card

May 2007

Release Date

Mar 2015

GeForce 8M

Generation

GeForce 900A

Mobile

Type

Mobile

MXM-I

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1029 MHz

-

Boost Clock

1124 MHz

400 MHz

Memory Clock

1001 MHz

Memory

256MB

Memory Size

1024MB

DDR2

Memory Type

DDR3

64bit

Memory Bus

64bit

6.400GB/s

Bandwidth

16.02GB/s

Render Config

-

2

SM Count

-

16

Shading Units

384

8

TMUs

16

4

ROPs

8

-

L1 Cache

64 KB (per SMM)

16 KB

L2 Cache

1024 KB

-

Theoretical Performance

1.600 GPixel/s

Pixel Rate

8.992 GPixel/s

3.200 GTexel/s

Texture Rate

17.98 GTexel/s

-

25.60 GFLOPS

FP32 (float)

863.2 GFLOPS

-

FP64 (double)

26.98 GFLOPS

Board Design

11W

TDP

33W

-

No outputs

Outputs

No outputs

-

Graphics Processor

G86

GPU Name

GM108

NB8M-GS

GPU Variant

-

Tesla

Architecture

Maxwell

TSMC

Foundry

TSMC

80 nm

Process Size

28 nm

0.21 billion

Transistors

Unknown

127 mm²

Die Size

Unknown

Graphics Features

11.1 (10_0)

DirectX

12 (11_0)

3.3

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.3

1.1

CUDA

5.0

4.0

Shader Model

5.1

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