NVIDIA GeForce GTX 660M Mac Edition vs NVIDIA GeForce GTX 860M
We compared two Mobile platform GPUs: 512MB VRAM GeForce GTX 660M Mac Edition and 4GB VRAM GeForce GTX 860M 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 75W)
NVIDIA GeForce GTX 860M 's Advantages
Released 9 months late
Boost Clock1085MHz
More VRAM (4GB vs 512GB)
Larger VRAM bandwidth (80.19GB/s vs 80.00GB/s)
256 additional rendering cores
Score
Benchmark
FP32 (float)
GeForce GTX 660M Mac Edition
0.73 TFLOPS
GeForce GTX 860M
+90%
1.389 TFLOPS
Graphics Card
Apr 2013
Release Date
Jan 2014
GeForce 600M
Generation
GeForce 800M
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
MXM-B (3.0)
Clock Speeds
-
Base Clock
1020 MHz
-
Boost Clock
1085 MHz
1250 MHz
Memory Clock
1253 MHz
Memory
512MB
Memory Size
4GB
GDDR5
Memory Type
GDDR5
128bit
Memory Bus
128bit
80.00GB/s
Bandwidth
80.19GB/s
Render Config
-
-
-
-
-
-
384
Shading Units
640
32
TMUs
40
16
ROPs
16
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
64 KB (per SMM)
256 KB
L2 Cache
2 MB
-
-
-
Theoretical Performance
7.600 GPixel/s
Pixel Rate
17.36 GPixel/s
30.40 GTexel/s
Texture Rate
43.40 GTexel/s
-
-
-
729.6 GFLOPS
FP32 (float)
1389 GFLOPS
30.40 GFLOPS
FP64 (double)
43.40 GFLOPS
Board Design
50W
TDP
75W
-
-
-
No outputs
Outputs
No outputs
None
Power Connectors
None
Graphics Processor
GK107
GPU Name
GM107
-
GPU Variant
N15P-GX-A1
Kepler
Architecture
Maxwell
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
1.27 billion
Transistors
1.87 billion
118 mm²
Die Size
148 mm²
Graphics Features
12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.1
Vulkan
1.3
3.0
CUDA
5.0
5.1
Shader Model
5.1
