GeForce GTX 660M and GeForce GTX 950 OEM - video card comparison
GeForce GTX 660M
GeForce GTX 950 OEM
Architecture
Kepler (2012−2018)
Maxwell 2.0 (2015−2019)
GPU code name
N13E-GE
GM206S
Market segment
Laptop
Desktop
Release date
March 2012
2016
Bus support
PCI Express 2.0, PCI Express 3.0
-
Interface
MXM-B (3.0)
PCIe 3.0 x16
Supplementary power connectors
-
None
SLI options
+
-
Boost clock speed
950 MHz
1203 MHz
Core clock speed
835 MHz
937 MHz
CUDA cores
384
-
Floating-point performance
729.6 gflops
1,946 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,270 million
2,940 million
Pipelines / CUDA cores
384
1024
Power consumption (TDP)
50 Watt
-
Texture fill rate
30.4 billion/sec
76.99
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
4 GB
Memory bus width
128bit
128 Bit
Memory clock speed
2000 MHz
5 GB/s
Memory bandwidth
64.0 GB/s
80.19 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
+
5.2
OpenCL
1.1
3.0
OpenGL
4.5
4.6
Shader Model
5.1
6.7
Vulkan
1.1.126
1.3
Optimus
+
-