GeForce GTX 650 Ti Boost and GeForce GT 640 - video card comparison
Passmark - benchmark score GeForce GTX 650 Ti Boost vs GeForce GT 640
GeForce GTX 650 Ti Boost
3438
GeForce GT 640
1209
GeForce GTX 650 Ti Boost
GeForce GT 640
Architecture
Kepler (2012−2018)
Kepler (2012−2018)
GPU code name
GK106
GK107
Market segment
Desktop
Desktop
Release date
March 2013
June 2012
Bus support
PCI Express 3.0
-
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
One 6-pin
None
SLI options
+
-
Boost clock speed
1033 MHz
-
Core clock speed
980 MHz
902 MHz
CUDA cores
768
-
Floating-point performance
1,585 gflops
692.7 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
2,540 million
1,270 million
Pipelines / CUDA cores
768
384
Power consumption (TDP)
134 Watt
65 Watt
Maximum GPU temperature
97 °C
-
Texture fill rate
62.7 billion/sec
28.86
Memory type
GDDR5
DDR3
Maximum RAM amount
2 GB
2 GB
Memory bus width
192 Bit
128 Bit
Memory clock speed
6.0 GB/s
1782 MHz
Memory bandwidth
144.2 GB/s
28.51 GB/s
Display Connectors
One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort
1x DVI, 1x HDMI, 1x DisplayPort
Multi monitor support
4 Displays
-
HDMI
+
+
HDCP
+
-
Maximum VGA resolution
2048x1536
-
Audio input for HDMI
Internal
-
DirectX
12 (11_0)
12 (11_0)
CUDA
+
3.0
OpenCL
1.2
1.2
OpenGL
4.3
4.6
Shader Model
5.1
5.1
Vulkan
1.1.126
1.1.126
3D Blu-Ray
+
-
3D Gaming
+
-
3D Vision
+
-
3D Vision Live
+
-