GeForce GTX 1080 Mobile and GeForce GTX 660M - video card comparison
GeForce GTX 1080 Mobile
GeForce GTX 660M
Architecture
Pascal (2016−2021)
Kepler (2012−2018)
GPU code name
N17E-G3
N13E-GE
Market segment
Laptop
Laptop
Release date
August 2016
March 2012
Bus support
PCIe 3.0
PCI Express 2.0, PCI Express 3.0
Interface
PCIe 3.0 x16
MXM-B (3.0)
SLI options
+
+
Boost clock speed
1733 MHz
950 MHz
Core clock speed
1607 MHz
835 MHz
CUDA cores
2560
384
Floating-point performance
9,068 gflops
729.6 gflops
Manufacturing process technology
16 nm
28 nm
Number of transistors
7,200 million
1,270 million
Pipelines / CUDA cores
2560
384
Power consumption (TDP)
150 Watt
50 Watt
Maximum GPU temperature
94 °C
-
Texture fill rate
283.4
30.4 billion/sec
Memory type
GDDR5
GDDR5
Maximum RAM amount
8 GB
2 GB
Memory bus width
256 Bit
128bit
Memory clock speed
10 GB/s
2000 MHz
Memory bandwidth
320 GB/s
64.0 GB/s
Shared memory
-
-
Display Connectors
DP 1.42, HDMI 2.0b, DL-DVI
No outputs
Multi monitor support
+
-
HDMI
-
+
HDCP
-
+
Maximum VGA resolution
-
Up to 2048x1536
G-SYNC support
+
-
DirectX
12 (12_1)
12 API
CUDA
+
+
OpenCL
1.2
1.1
OpenGL
4.5
4.5
Shader Model
6.4
5.1
Vulkan
1.2.131
1.1.126
Ansel
+
-
GPU Boost
3.0
-
Optimus
-
+
VR Ready
+
-