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

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

We compared two Mobile platform GPUs: 2GB VRAM Radeon R9 M395 Mac Edition and 512MB VRAM GeForce GTX 660M Mac Edition 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 2 years and 1 months late
More VRAM (2GB vs 512GB)
Larger VRAM bandwidth (174.7GB/s vs 80.00GB/s)
1408 additional rendering cores
NVIDIA GeForce GTX 660M Mac Edition 's Advantages
Lower TDP (50W vs 250W)

Score

Benchmark

FP32 (float)
Radeon R9 M395 Mac Edition +309%
2.989 TFLOPS
GeForce GTX 660M Mac Edition
0.73 TFLOPS
VS

Graphics Card

May 2015
Release Date
Apr 2013
Crystal System
Generation
GeForce 600M
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
MXM-B (3.0)

Clock Speeds

-
-
-
-
-
-
1365 MHz
Memory Clock
1250 MHz

Memory

2GB
Memory Size
512MB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
128bit
174.7GB/s
Bandwidth
80.00GB/s

Render Config

28
Compute Units
-
-
-
-
1792
Shading Units
384
112
TMUs
32
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
None

Graphics Processor

Amethyst
GPU Name
GK107
Amethyst PRO (216-0872004)
GPU Variant
-
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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