GeForce GTX 660 OEM and GeForce GT 240 - video card comparison
GeForce GTX 660 OEM
GeForce GT 240
Architecture
Kepler (2012−2018)
GT2xx (2009−2012)
GPU code name
GK104
GT215
Market segment
Desktop
Desktop
Release date
August 2012
November 2009
Bus support
-
PCI-E 2.0
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin
None
Boost clock speed
888 MHz
-
Core clock speed
823 MHz
550 MHz
CUDA cores
-
96
Floating-point performance
2,046 gflops
257.28 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
3,540 million
727 million
Pipelines / CUDA cores
1152
96
Power consumption (TDP)
130 Watt
69 Watt
Maximum GPU temperature
-
105C C
Texture fill rate
85.25
17.60
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
512 MB or 1 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
5600 MHz
1700 MHz GDDR5, 1000 MHz GDDR3, 900 MHz DDR3 MHz
Memory bandwidth
179.2 GB/s
54.4 GB/s
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
DVIVGAHDMI
Multi monitor support
-
+
HDMI
+
+
Maximum VGA resolution
-
2048x1536
Audio input for HDMI
-
Internal
DirectX
12 (11_0)
11.1 (10_1)
CUDA
3.0
+
OpenCL
1.2
1.1
OpenGL
4.6
3.2
Shader Model
5.1
4.1
Vulkan
1.1.126
N/A