GeForce GTX 660M and HD Graphics 520 - video card comparison
Passmark - benchmark score GeForce GTX 660M vs HD Graphics 520
GeForce GTX 660M
1478
HD Graphics 520
856
GeForce GTX 660M
HD Graphics 520
Architecture
Kepler (2012−2018)
Gen. 9 Skylake (2015−2016)
GPU code name
N13E-GE
Skylake GT2
Market segment
Laptop
Laptop
Release date
March 2012
September 2015
Bus support
PCI Express 2.0, PCI Express 3.0
-
Interface
MXM-B (3.0)
PCIe 3.0 x1
SLI options
+
-
Boost clock speed
950 MHz
1050 MHz
Core clock speed
835 MHz
300 MHz
CUDA cores
384
-
Floating-point performance
729.6 gflops
-
Manufacturing process technology
28 nm
14 nm
Number of transistors
1,270 million
189 million
Pipelines / CUDA cores
384
24
Power consumption (TDP)
50 Watt
15 Watt
Texture fill rate
30.4 billion/sec
25.20
Memory type
GDDR5
DDR3L/LPDDR3/DDR4
Maximum RAM amount
2 GB
32 GB
Memory bus width
128bit
64/128 Bit
Memory clock speed
2000 MHz
System Shared
Memory bandwidth
64.0 GB/s
-
Shared memory
-
+
Display Connectors
No outputs
No outputs
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
Up to 2048x1536
-
DirectX
12 API
12 (12_1)
CUDA
+
-
OpenCL
1.1
2.1
OpenGL
4.5
4.6
Shader Model
5.1
6.4
Vulkan
1.1.126
+
Optimus
+
-
Quick Sync
-
+