NVIDIA GeForce GTX 660M Mac Edition vs AMD Radeon R9 M395 Mac Edition
We compared two Mobile platform GPUs: 512MB VRAM GeForce GTX 660M Mac Edition and 2GB VRAM Radeon R9 M395 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GTX 660M Mac Edition 's Advantages
Lower TDP (50W vs 250W)
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
Score
Benchmark
FP32 (float)
GeForce GTX 660M Mac Edition
0.73 TFLOPS
Radeon R9 M395 Mac Edition
+309%
2.989 TFLOPS
Graphics Card
Apr 2013
Release Date
May 2015
GeForce 600M
Generation
Crystal System
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
MXM-B (3.0)
Clock Speeds
-
-
-
-
-
-
1250 MHz
Memory Clock
1365 MHz
Memory
512MB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
128bit
Memory Bus
256bit
80.00GB/s
Bandwidth
174.7GB/s
Render Config
-
Compute Units
28
-
-
-
384
Shading Units
1792
32
TMUs
112
16
ROPs
32
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
-
256 KB
L2 Cache
-
-
-
-
Theoretical Performance
7.600 GPixel/s
Pixel Rate
26.69 GPixel/s
30.40 GTexel/s
Texture Rate
93.41 GTexel/s
-
-
-
729.6 GFLOPS
FP32 (float)
2.989 TFLOPS
30.40 GFLOPS
FP64 (double)
373.6 GFLOPS
Board Design
50W
TDP
250W
-
-
-
No outputs
Outputs
No outputs
None
Power Connectors
None
Graphics Processor
GK107
GPU Name
Amethyst
-
GPU Variant
Amethyst PRO
(216-0872004)
Kepler
Architecture
GCN 3.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
1.27 billion
Transistors
5 billion
118 mm²
Die Size
366 mm²
Graphics Features
12 (11_0)
DirectX
12 (12_0)
4.6
OpenGL
4.6
3.0
OpenCL
2.0
1.1
Vulkan
1.2
3.0
CUDA
-
5.1
Shader Model
6.3
