GeForce GTX 550 Ti and GeForce GT 640 - video card comparison
Passmark - benchmark score GeForce GTX 550 Ti vs GeForce GT 640
GeForce GTX 550 Ti
1599
GeForce GT 640
1210
GeForce GTX 550 Ti
GeForce GT 640
Architecture
Fermi (2010−2014)
Kepler (2012−2018)
GPU code name
GF116
GK107
Market segment
Desktop
Desktop
Release date
March 2011
June 2012
Bus support
16x PCI-E 2.0
-
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Supplementary power connectors
One 6-pin
None
SLI options
+
-
Core clock speed
900 MHz
902 MHz
CUDA cores
192
-
Floating-point performance
691.2 gflops
692.7 gflops
Manufacturing process technology
40 nm
28 nm
Number of transistors
1,170 million
1,270 million
Pipelines / CUDA cores
192
384
Power consumption (TDP)
116 Watt
65 Watt
Maximum GPU temperature
100 °C
-
Texture fill rate
28.8 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
4.1 GB/s
1782 MHz
Memory bandwidth
98.4 GB/s
28.51 GB/s
Display Connectors
Two Dual Link DVI-IMini HDMI
1x DVI, 1x HDMI, 1x DisplayPort
Multi monitor support
+
-
HDMI
+
+
Maximum VGA resolution
2048x1536
-
Audio input for HDMI
Internal
-
DirectX
12 (11_0)
12 (11_0)
CUDA
+
3.0
OpenCL
1.1
1.2
OpenGL
4.2
4.6
Shader Model
5.1
5.1
Vulkan
N/A
1.1.126