NVIDIA GeForce GTX 660M Mac Edition vs NVIDIA GeForce GT 520M
We compared two Mobile platform GPUs: 512MB VRAM GeForce GTX 660M Mac Edition and 1024MB VRAM GeForce GT 520M 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 2 years and 3 months late
Larger VRAM bandwidth (80.00GB/s vs 12.80GB/s)
336 additional rendering cores
NVIDIA GeForce GT 520M 's Advantages
More VRAM (1024GB vs 512GB)
Lower TDP (12W vs 50W)
Score
Benchmark
FP32 (float)
GeForce GTX 660M Mac Edition
+414%
0.73 TFLOPS
GeForce GT 520M
0.142 TFLOPS
Graphics Card
Apr 2013
Release Date
Jan 2011
GeForce 600M
Generation
GeForce 500M
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
-
-
-
-
-
1250 MHz
Memory Clock
800 MHz
Memory
512MB
Memory Size
1024MB
GDDR5
Memory Type
DDR3
128bit
Memory Bus
64bit
80.00GB/s
Bandwidth
12.80GB/s
Render Config
-
-
-
-
SM Count
1
384
Shading Units
48
32
TMUs
8
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
1.480 GPixel/s
30.40 GTexel/s
Texture Rate
5.920 GTexel/s
-
-
-
729.6 GFLOPS
FP32 (float)
142.1 GFLOPS
30.40 GFLOPS
FP64 (double)
11.84 GFLOPS
Board Design
50W
TDP
12W
-
-
-
No outputs
Outputs
No outputs
None
Power Connectors
-
Graphics Processor
GK107
GPU Name
GF119
-
GPU Variant
N12P-GV-B-A1
Kepler
Architecture
Fermi 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
1.27 billion
Transistors
0.292 billion
118 mm²
Die Size
79 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
