NVIDIA GeForce 945M vs AMD Radeon R9 M390 Mac Edition

VS

NVIDIA GeForce 945M

AMD Radeon R9 M390 Mac Edition

We compared two Mobile platform GPUs: 1024MB VRAM GeForce 945M and 2GB VRAM Radeon R9 M390 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 945M 's Advantages

Released 11 months late

Boost Clock1189MHz

Lower TDP (23W vs 80W)

AMD Radeon R9 M390 Mac Edition 's Advantages

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (174.7GB/s vs 16.02GB/s)

640 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 945M

0.913 TFLOPS

Radeon R9 M390 Mac Edition +114%

1.962 TFLOPS

GeForce 945M

VS

Radeon R9 M390 Mac Edition

Graphics Card

Apr 2016

Release Date

May 2015

GeForce 900M

Generation

Crystal System

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1006 MHz

Base Clock

-

1189 MHz

Boost Clock

-

1001 MHz

Memory Clock

1365 MHz

Memory

1024MB

Memory Size

2GB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

256bit

16.02GB/s

Bandwidth

174.7GB/s

Render Config

-

Compute Units

16

-

384

Shading Units

1024

24

TMUs

64

8

ROPs

32

-

64 KB (per SMM)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

512 KB

-

Theoretical Performance

9.512 GPixel/s

Pixel Rate

30.66 GPixel/s

28.54 GTexel/s

Texture Rate

61.31 GTexel/s

-

913.2 GFLOPS

FP32 (float)

1.962 TFLOPS

28.54 GFLOPS

FP64 (double)

122.6 GFLOPS

Board Design

23W

TDP

80W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

GM108

GPU Name

Pitcairn

-

GPU Variant

Pitcairn PRO (215-0828062)

Maxwell

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

Unknown

Transistors

2.8 billion

Unknown

Die Size

212 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

1.2

1.3

Vulkan

1.2

5.0

CUDA

-

5.1

Shader Model

5.1

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