NVIDIA GeForce GTX 660M Mac Edition vs NVIDIA GeForce GT 625M
We compared two Mobile platform GPUs: 512MB VRAM GeForce GTX 660M Mac Edition and 2GB VRAM GeForce GT 625M 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
Released 6 months late
Larger VRAM bandwidth (80.00GB/s vs 14.40GB/s)
288 additional rendering cores
NVIDIA GeForce GT 625M 's Advantages
More VRAM (2GB vs 512GB)
Lower TDP (15W vs 50W)
Score
Benchmark
FP32 (float)
GeForce GTX 660M Mac Edition
+204%
0.73 TFLOPS
GeForce GT 625M
0.24 TFLOPS
Graphics Card
Apr 2013
Release Date
Oct 2012
GeForce 600M
Generation
GeForce 600M
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
-
-
-
-
-
1250 MHz
Memory Clock
900 MHz
Memory
512MB
Memory Size
2GB
GDDR5
Memory Type
DDR3
128bit
Memory Bus
64bit
80.00GB/s
Bandwidth
14.40GB/s
Render Config
-
-
-
-
SM Count
2
384
Shading Units
96
32
TMUs
16
16
ROPs
4
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
64 KB (per SM)
256 KB
L2 Cache
128 KB
-
-
-
Theoretical Performance
7.600 GPixel/s
Pixel Rate
2.500 GPixel/s
30.40 GTexel/s
Texture Rate
10.00 GTexel/s
-
-
-
729.6 GFLOPS
FP32 (float)
240.0 GFLOPS
30.40 GFLOPS
FP64 (double)
20.00 GFLOPS
Board Design
50W
TDP
15W
-
-
-
No outputs
Outputs
No outputs
None
Power Connectors
-
Graphics Processor
GK107
GPU Name
GF117
-
GPU Variant
N13M-GS-B-A2
Kepler
Architecture
Fermi 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
1.27 billion
Transistors
0.585 billion
118 mm²
Die Size
116 mm²
Graphics Features
12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
1.1
1.1
Vulkan
N/A
3.0
CUDA
2.1
5.1
Shader Model
5.1
