NVIDIA GeForce 940M vs ATI Mobility Radeon HD 4870 X2

VS

NVIDIA GeForce 940M

ATI Mobility Radeon HD 4870 X2

We compared two Mobile platform GPUs: 2GB VRAM GeForce 940M and 1024MB VRAM Mobility Radeon HD 4870 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 2 months late

Boost Clock1098MHz

More VRAM (2GB vs 1024GB)

ATI Mobility Radeon HD 4870 X2 's Advantages

Larger VRAM bandwidth (89.60GB/s vs 14.40GB/s)

288 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 940M +27%

1.124 TFLOPS

Mobility Radeon HD 4870 X2

0.88 TFLOPS

GeForce 940M

VS

Mobility Radeon HD 4870 X2

Graphics Card

Mar 2015

Release Date

Jan 2009

GeForce 900M

Generation

M9x

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

700 MHz

Memory

2GB

Memory Size

1024MB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

256bit

14.40GB/s

Bandwidth

89.60GB/s

Render Config

-

Compute Units

10

-

512

Shading Units

800

32

TMUs

40

16

ROPs

16

-

64 KB (per SMM)

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

256 KB

-

Theoretical Performance

17.57 GPixel/s

Pixel Rate

8.800 GPixel/s

35.14 GTexel/s

Texture Rate

22.00 GTexel/s

-

1124 GFLOPS

FP32 (float)

880.0 GFLOPS

35.14 GFLOPS

FP64 (double)

176.0 GFLOPS

Board Design

75W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Power Connectors

None

Graphics Processor

GM107

GPU Name

M98

N16S-GT1-KB-B

GPU Variant

M98 XT L2 (216-0732023)

Maxwell

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

1.87 billion

Transistors

0.956 billion

148 mm²

Die Size

256 mm²

Graphics Features

12 (11_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

3.0

OpenCL

1.1

1.3

Vulkan

N/A

5.0

CUDA

-

5.1

Shader Model

4.1

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