AMD Radeon R9 M395 Mac Edition vs NVIDIA GeForce GTX 660M

VS

AMD Radeon R9 M395 Mac Edition

NVIDIA GeForce GTX 660M

We compared two Mobile platform GPUs: 2GB VRAM Radeon R9 M395 Mac Edition and 1024MB VRAM GeForce GTX 660M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M395 Mac Edition 's Advantages

Released 3 years and 2 months late

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (174.7GB/s vs 64.00GB/s)

1408 additional rendering cores

NVIDIA GeForce GTX 660M 's Advantages

Boost Clock950MHz

Lower TDP (50W vs 250W)

Score

Benchmark

FP32 (float)

Radeon R9 M395 Mac Edition +309%

2.989 TFLOPS

GeForce GTX 660M

0.73 TFLOPS

Radeon R9 M395 Mac Edition

VS

GeForce GTX 660M

Graphics Card

May 2015

Release Date

Mar 2012

Crystal System

Generation

GeForce 600M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-B (3.0)

Clock Speeds

-

Base Clock

835 MHz

-

Boost Clock

950 MHz

1365 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

174.7GB/s

Bandwidth

64.00GB/s

Render Config

28

Compute Units

-

1792

Shading Units

384

112

TMUs

32

ROPs

16

-

L1 Cache

16 KB (per SMX)

-

L2 Cache

256 KB

-

Theoretical Performance

26.69 GPixel/s

Pixel Rate

7.600 GPixel/s

93.41 GTexel/s

Texture Rate

30.40 GTexel/s

-

2.989 TFLOPS

FP32 (float)

729.6 GFLOPS

373.6 GFLOPS

FP64 (double)

30.40 GFLOPS

Board Design

250W

TDP

50W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Amethyst

GPU Name

GK107

Amethyst PRO (216-0872004)

GPU Variant

N13E-GE-A2

GCN 3.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

5 billion

Transistors

1.27 billion

366 mm²

Die Size

118 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.0

OpenCL

3.0

1.2

Vulkan

1.1

-

CUDA

3.0

6.3

Shader Model

5.1

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