Cayman and GeForce GTX 660 OEM - video card comparison
Cayman
GeForce GTX 660 OEM
Architecture
TeraScale 3 (2010−2013)
Kepler (2012−2018)
GPU code name
Cayman
GK104
Market segment
Desktop
Desktop
Release date
-
August 2012
Interface
-
PCIe 3.0 x16
Supplementary power connectors
-
1x 6-pin
Boost clock speed
-
888 MHz
Core clock speed
-
823 MHz
Floating-point performance
-
2,046 gflops
Manufacturing process technology
40 nm
28 nm
Number of transistors
2,640 million
3,540 million
Pipelines / CUDA cores
1536
1152
Power consumption (TDP)
-
130 Watt
Texture fill rate
-
85.25
Memory type
-
GDDR5
Maximum RAM amount
-
2 GB
Memory bus width
-
256 Bit
Memory clock speed
-
5600 MHz
Memory bandwidth
-
179.2 GB/s
Display Connectors
-
2x DVI, 1x HDMI, 1x DisplayPort
HDMI
-
+
DirectX
11.2 (11_0)
12 (11_0)
CUDA
-
3.0
OpenCL
1.2
1.2
OpenGL
4.4
4.6
Shader Model
5.0
5.1
Vulkan
N/A
1.1.126