GeForce GTX 960 and GeForce GTX 660 - video card comparison
Passmark - benchmark score GeForce GTX 960 vs GeForce GTX 660
GeForce GTX 960
6254
GeForce GTX 660
4119
GeForce GTX 960
GeForce GTX 660
Architecture
Maxwell (2014−2018)
Kepler (2012−2018)
GPU code name
GM206
GK106
Market segment
Desktop
Desktop
Release date
January 2015
September 2012
Bus support
PCI Express 3.0
PCI Express 3.0
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Recommended system power (PSU)
400 Watt
-
Supplementary power connectors
1x 6-pins
One 6-pin
SLI options
+
+
Boost clock speed
1178 MHz
1033 MHz
Core clock speed
1127 MHz
980 MHz
CUDA cores
1024
960
Floating-point performance
2,413 gflops
1,981 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
2,940 million
2,540 million
Pipelines / CUDA cores
1024
960
Power consumption (TDP)
120 Watt
140 Watt
Texture fill rate
72 billion/sec
78.4 billion/sec
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
2 GB
Memory bus width
128 Bit
192-bit GDDR5
Memory clock speed
7.0 GB/s
6.0 GB/s
Memory bandwidth
112 GB/s
144.2 GB/s
Shared memory
-
-
Display Connectors
Dual Link DVI-I, HDMI 2.0, 3x DisplayPort 1.2
One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort
Multi monitor support
4 displays
4 displays
HDMI
+
+
HDCP
+
+
Maximum VGA resolution
2048x1536
2048x1536
G-SYNC support
+
-
Audio input for HDMI
Internal
Internal
DirectX
12 (12_1)
12 (11_0)
CUDA
+
+
OpenCL
1.2
1.2
OpenGL
4.4
4.3
Shader Model
6.4
5.1
Vulkan
+
1.1.126
3D Blu-Ray
-
+
3D Gaming
-
+
3D Vision
-
+
GameStream
+
-
GameWorks
+
-
GeForce ShadowPlay
+
-
GPU Boost
2.0
-