NVIDIA GeForce 940M vs ATI Mobility Radeon HD 3870 X2

VS

NVIDIA GeForce 940M

ATI Mobility Radeon HD 3870 X2

We compared two Mobile platform GPUs: 2GB VRAM GeForce 940M and 512MB VRAM Mobility Radeon HD 3870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 940M 's Advantages

Released 6 years and 6 months late

Boost Clock1098MHz

More VRAM (2GB vs 512GB)

192 additional rendering cores

Lower TDP (75W vs 110W)

ATI Mobility Radeon HD 3870 X2 's Advantages

Larger VRAM bandwidth (54.40GB/s vs 14.40GB/s)

Score

Benchmark

FP32 (float)

GeForce 940M +166%

1.124 TFLOPS

Mobility Radeon HD 3870 X2

0.422 TFLOPS

GeForce 940M

VS

Mobility Radeon HD 3870 X2

Graphics Card

Mar 2015

Release Date

Sep 2008

GeForce 900M

Generation

M8x

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

1020 MHz

Base Clock

-

1098 MHz

Boost Clock

-

900 MHz

Memory Clock

850 MHz

Memory

2GB

Memory Size

512MB

DDR3

Memory Type

GDDR3

64bit

Memory Bus

256bit

14.40GB/s

Bandwidth

54.40GB/s

Render Config

-

Compute Units

4

-

512

Shading Units

320

32

TMUs

16

ROPs

16

-

64 KB (per SMM)

L1 Cache

-

2 MB

L2 Cache

256 KB

-

Theoretical Performance

17.57 GPixel/s

Pixel Rate

10.56 GPixel/s

35.14 GTexel/s

Texture Rate

10.56 GTexel/s

-

1124 GFLOPS

FP32 (float)

422.4 GFLOPS

35.14 GFLOPS

FP64 (double)

84.48 GFLOPS

Board Design

75W

TDP

110W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GM107

GPU Name

M88

N16S-GT1-KB-B

GPU Variant

-

Maxwell

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

1.87 billion

Transistors

0.666 billion

148 mm²

Die Size

192 mm²

Graphics Features

12 (11_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

3.0

OpenCL

N/A

1.3

Vulkan

N/A

5.0

CUDA

-

5.1

Shader Model

4.1

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