NVIDIA GeForce 940M vs NVIDIA GeForce GTX 870M

VS

NVIDIA GeForce 940M

NVIDIA GeForce GTX 870M

We compared two Mobile platform GPUs: 2GB VRAM GeForce 940M and 3GB VRAM GeForce GTX 870M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 940M 's Advantages

Released 1 years late

Boost Clock has increased by 14% (1098MHz vs 967MHz)

Lower TDP (75W vs 100W)

NVIDIA GeForce GTX 870M 's Advantages

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (120.0GB/s vs 14.40GB/s)

832 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 940M

1.124 TFLOPS

GeForce GTX 870M +131%

2.599 TFLOPS

GeForce 940M

VS

GeForce GTX 870M

Graphics Card

Mar 2015

Release Date

Mar 2014

GeForce 900M

Generation

GeForce 800M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-B (3.0)

Clock Speeds

1020 MHz

Base Clock

941 MHz

1098 MHz

Boost Clock

967 MHz

900 MHz

Memory Clock

1250 MHz

Memory

2GB

Memory Size

3GB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

192bit

14.40GB/s

Bandwidth

120.0GB/s

Render Config

-

512

Shading Units

1344

32

TMUs

112

16

ROPs

24

-

64 KB (per SMM)

L1 Cache

16 KB (per SMX)

2 MB

L2 Cache

384 KB

-

Theoretical Performance

17.57 GPixel/s

Pixel Rate

27.08 GPixel/s

35.14 GTexel/s

Texture Rate

108.3 GTexel/s

-

1124 GFLOPS

FP32 (float)

2.599 TFLOPS

35.14 GFLOPS

FP64 (double)

108.3 GFLOPS

Board Design

75W

TDP

100W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

GM107

GPU Name

GK104

N16S-GT1-KB-B

GPU Variant

N15E-GT-A2

Maxwell

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.87 billion

Transistors

3.54 billion

148 mm²

Die Size

294 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.1

5.0

CUDA

3.0

5.1

Shader Model

5.1

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