AMD Radeon R9 M395X Mac Edition vs NVIDIA GeForce GTX 675M

VS

AMD Radeon R9 M395X Mac Edition

NVIDIA GeForce GTX 675M

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M395X Mac Edition and 2GB VRAM GeForce GTX 675M 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

Released 3 years and 2 months late

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (174.7GB/s vs 96.00GB/s)

1664 additional rendering cores

NVIDIA GeForce GTX 675M 's Advantages

Lower TDP (100W vs 250W)

Score

Benchmark

FP32 (float)

Radeon R9 M395X Mac Edition +291%

3.723 TFLOPS

GeForce GTX 675M

0.952 TFLOPS

Radeon R9 M395X Mac Edition

VS

GeForce GTX 675M

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

-

1365 MHz

Memory Clock

750 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

174.7GB/s

Bandwidth

96.00GB/s

Render Config

32

Compute Units

-

SM Count

8

2048

Shading Units

384

128

TMUs

64

32

ROPs

32

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

29.09 GPixel/s

Pixel Rate

9.920 GPixel/s

116.4 GTexel/s

Texture Rate

39.68 GTexel/s

3.723 TFLOPS

FP16 (half)

-

3.723 TFLOPS

FP32 (float)

952.3 GFLOPS

232.7 GFLOPS

FP64 (double)

79.36 GFLOPS

Board Design

250W

TDP

100W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Amethyst

GPU Name

GF114

Amethyst XT

GPU Variant

N13E-GS1-A1

GCN 3.0

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

5 billion

Transistors

1.95 billion

366 mm²

Die Size

332 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.0

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

2.1

6.3

Shader Model

5.1

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