GeForce GTX 660 OEM and GeForce GTX 560 - video card comparison
GeForce GTX 660 OEM
GeForce GTX 560
Architecture
Kepler (2012−2018)
Fermi 2.0 (2010−2014)
GPU code name
GK104
GF114
Market segment
Desktop
Desktop
Release date
August 2012
May 2011
Bus support
-
16x PCI-E 2.0
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin
Two 6-pin
SLI options
-
+
Boost clock speed
888 MHz
-
Core clock speed
823 MHz
810 MHz
Floating-point performance
2,046 gflops
1,088.6 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
3,540 million
1,950 million
Pipelines / CUDA cores
1152
336
Power consumption (TDP)
130 Watt
150 Watt
Maximum GPU temperature
-
99 °C
Texture fill rate
85.25
45.36
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
1 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
5600 MHz
4000 MHz
Memory bandwidth
179.2 GB/s
128.0 GB/s
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
Two Dual Link DVI, Mini HDMI
Multi monitor support
-
+
HDMI
+
+
HDCP
-
+
Maximum VGA resolution
-
2048x1536
Audio input for HDMI
-
Internal
DirectX
12 (11_0)
12 (11_0)
CUDA
3.0
+
OpenCL
1.2
1.1
OpenGL
4.6
4.1
Shader Model
5.1
5.1
Vulkan
1.1.126
N/A
3D Blu-Ray
-
+
3D Gaming
-
+