AMD Radeon R9 M390 Mac Edition vs NVIDIA GeForce 940M

VS

AMD Radeon R9 M390 Mac Edition

NVIDIA GeForce 940M

We compared two Mobile platform GPUs: 2GB VRAM Radeon R9 M390 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 M390 Mac Edition 's Advantages

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

512 additional rendering cores

NVIDIA GeForce 940M 's Advantages

Boost Clock1098MHz

Lower TDP (75W vs 80W)

Score

Benchmark

FP32 (float)

Radeon R9 M390 Mac Edition +74%

1.962 TFLOPS

GeForce 940M

1.124 TFLOPS

Radeon R9 M390 Mac Edition

VS

GeForce 940M

Graphics Card

May 2015

Release Date

Mar 2015

Crystal System

Generation

GeForce 900M

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

-

Base Clock

1020 MHz

-

Boost Clock

1098 MHz

1365 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

64bit

174.7GB/s

Bandwidth

14.40GB/s

Render Config

16

Compute Units

-

1024

Shading Units

512

64

TMUs

32

ROPs

16

-

16 KB (per CU)

L1 Cache

64 KB (per SMM)

512 KB

L2 Cache

2 MB

-

Theoretical Performance

30.66 GPixel/s

Pixel Rate

17.57 GPixel/s

61.31 GTexel/s

Texture Rate

35.14 GTexel/s

-

1.962 TFLOPS

FP32 (float)

1124 GFLOPS

122.6 GFLOPS

FP64 (double)

35.14 GFLOPS

Board Design

80W

TDP

75W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Pitcairn

GPU Name

GM107

Pitcairn PRO (215-0828062)

GPU Variant

N16S-GT1-KB-B

GCN 1.0

Architecture

Maxwell

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.8 billion

Transistors

1.87 billion

212 mm²

Die Size

148 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.3

-

CUDA

5.0

5.1

Shader Model

5.1

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