GeForce GTX 660 OEM and GeForce 615 - video card comparison
GeForce GTX 660 OEM
GeForce 615
Architecture
Kepler (2012−2018)
Fermi (2010−2014)
GPU code name
GK104
GF108
Market segment
Desktop
Desktop
Release date
August 2012
May 2012
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin
-
Boost clock speed
888 MHz
-
Core clock speed
823 MHz
660 MHz
Floating-point performance
2,046 gflops
126.7 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
3,540 million
585 million
Pipelines / CUDA cores
1152
48
Power consumption (TDP)
130 Watt
49 Watt
Texture fill rate
85.25
5.280
Memory type
GDDR5
DDR3
Maximum RAM amount
2 GB
1 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
5600 MHz
1800 MHz
Memory bandwidth
179.2 GB/s
28.8 GB/s
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
No outputs
HDMI
+
-
DirectX
12 (11_0)
12 (11_0)
CUDA
3.0
2.1
OpenCL
1.2
1.1
OpenGL
4.6
4.6
Shader Model
5.1
5.1
Vulkan
1.1.126
N/A