NVIDIA GeForce GTX 660M Mac Edition vs NVIDIA GeForce GTX 970M
We compared two Mobile platform GPUs: 512MB VRAM GeForce GTX 660M Mac Edition and 3GB VRAM GeForce GTX 970M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GTX 970M 's Advantages
Released 1 years and 6 months late
Boost Clock1038MHz
More VRAM (3GB vs 512GB)
Larger VRAM bandwidth (120.3GB/s vs 80.00GB/s)
896 additional rendering cores
Score
Benchmark
FP32 (float)
GeForce GTX 660M Mac Edition
0.73 TFLOPS
GeForce GTX 970M
+263%
2.657 TFLOPS
Graphics Card
Apr 2013
Release Date
Oct 2014
GeForce 600M
Generation
GeForce 900M
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
MXM-B (3.0)
Clock Speeds
-
Base Clock
924 MHz
-
Boost Clock
1038 MHz
1250 MHz
Memory Clock
1253 MHz
Memory
512MB
Memory Size
3GB
GDDR5
Memory Type
GDDR5
128bit
Memory Bus
192bit
80.00GB/s
Bandwidth
120.3GB/s
Render Config
-
-
-
-
-
-
384
Shading Units
1280
32
TMUs
80
16
ROPs
48
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
48 KB (per SMM)
256 KB
L2 Cache
1536 KB
-
-
-
Theoretical Performance
7.600 GPixel/s
Pixel Rate
49.82 GPixel/s
30.40 GTexel/s
Texture Rate
83.04 GTexel/s
-
-
-
729.6 GFLOPS
FP32 (float)
2.657 TFLOPS
30.40 GFLOPS
FP64 (double)
83.04 GFLOPS
Board Design
50W
TDP
Unknown
-
-
-
No outputs
Outputs
Portable Device Dependent
None
Power Connectors
None
Graphics Processor
GK107
GPU Name
GM204
-
GPU Variant
N16E-GT-A2
Kepler
Architecture
Maxwell 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
1.27 billion
Transistors
5.2 billion
118 mm²
Die Size
398 mm²
Graphics Features
12 (11_0)
DirectX
12 (12_1)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.1
Vulkan
1.3
3.0
CUDA
5.2
5.1
Shader Model
6.7 (6.4)
