AMD Radeon R9 M395X Mac Edition vs NVIDIA GeForce 940M

VS

AMD Radeon R9 M395X Mac Edition

NVIDIA GeForce 940M

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M395X Mac Edition and 2GB VRAM GeForce 940M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M395X Mac Edition 's Advantages

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (174.7GB/s vs 14.40GB/s)

1536 additional rendering cores

NVIDIA GeForce 940M 's Advantages

Boost Clock1098MHz

Lower TDP (75W vs 250W)

Score

Benchmark

FP32 (float)

Radeon R9 M395X Mac Edition +231%

3.723 TFLOPS

GeForce 940M

1.124 TFLOPS

Radeon R9 M395X Mac Edition

VS

GeForce 940M

Graphics Card

May 2015

Release Date

Mar 2015

Crystal System

Generation

GeForce 900M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-B (3.0)

Clock Speeds

-

Base Clock

1020 MHz

-

Boost Clock

1098 MHz

1365 MHz

Memory Clock

900 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

64bit

174.7GB/s

Bandwidth

14.40GB/s

Render Config

32

Compute Units

-

2048

Shading Units

512

128

TMUs

32

ROPs

16

-

16 KB (per CU)

L1 Cache

64 KB (per SMM)

512 KB

L2 Cache

2 MB

-

Theoretical Performance

29.09 GPixel/s

Pixel Rate

17.57 GPixel/s

116.4 GTexel/s

Texture Rate

35.14 GTexel/s

3.723 TFLOPS

FP16 (half)

-

3.723 TFLOPS

FP32 (float)

1124 GFLOPS

232.7 GFLOPS

FP64 (double)

35.14 GFLOPS

Board Design

250W

TDP

75W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Amethyst

GPU Name

GM107

Amethyst XT

GPU Variant

N16S-GT1-KB-B

GCN 3.0

Architecture

Maxwell

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

5 billion

Transistors

1.87 billion

366 mm²

Die Size

148 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.0

OpenCL

3.0

1.2

Vulkan

1.3

-

CUDA

5.0

6.3

Shader Model

5.1

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