GeForce GTX 660 and GeForce 9800S - video card comparison
GeForce GTX 660
GeForce 9800S
Architecture
Kepler (2012−2018)
Tesla (2006−2010)
GPU code name
GK106
G94
Market segment
Desktop
Desktop
Release date
September 2012
July 2008
Bus support
PCI Express 3.0
-
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
One 6-pin
-
SLI options
+
+
Boost clock speed
1033 MHz
-
Core clock speed
980 MHz
600 MHz
CUDA cores
960
64
Floating-point performance
1,981 gflops
192 gflops
Manufacturing process technology
28 nm
65 nm
Number of transistors
2,540 million
505 million
Pipelines / CUDA cores
960
64
Power consumption (TDP)
140 Watt
75 Watt
Texture fill rate
78.4 billion/sec
19.2 billion/sec
Memory type
GDDR5
GDDR3
Maximum RAM amount
2 GB
1 GB
Memory bus width
192-bit GDDR5
256 Bit
Memory clock speed
6.0 GB/s
800 MHz
Memory bandwidth
144.2 GB/s
51.2 GB/s
Display Connectors
One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort
VGAHDMISingle Link DVI
Multi monitor support
4 displays
+
HDMI
+
+
HDCP
+
-
Maximum VGA resolution
2048x1536
2048x1536
Audio input for HDMI
Internal
S/PDIF + HDA
DirectX
12 (11_0)
11.1 (10_0)
CUDA
+
+
OpenCL
1.2
1.1
OpenGL
4.3
2.1
Shader Model
5.1
4.0
Vulkan
1.1.126
N/A
3D Blu-Ray
+
-
3D Gaming
+
-
3D Vision
+
-