GeForce GT 645 OEM and GeForce GT 440 OEM - video card comparison
GeForce GT 645 OEM
GeForce GT 440 OEM
Architecture
Fermi 2.0 (2010−2014)
Fermi (2010−2014)
GPU code name
GF114
GF106
Market segment
Desktop
Desktop
Release date
April 2012
October 2010
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
-
None
Core clock speed
776 MHz
810 MHz
Floating-point performance
894.0 gflops
466.6 gflops
Manufacturing process technology
40 nm
40 nm
Number of transistors
1,950 million
1,170 million
Pipelines / CUDA cores
288
144
Power consumption (TDP)
102 Watt
65 Watt
Texture fill rate
37.25
19.44
Memory type
GDDR5
DDR3
Maximum RAM amount
1 GB
1536 MB
Memory bus width
192 Bit
192 Bit
Memory clock speed
3828 MHz
1800 MHz
Memory bandwidth
91.87 GB/s
43.2 GB/s
Display Connectors
2x DVI, 1x mini-HDMI
1x DVI, 1x HDMI, 1x VGA
HDMI
+
+
DirectX
12 (11_0)
12 (11_0)
CUDA
2.1
2.1
OpenCL
1.1
1.1
OpenGL
4.6
4.6
Shader Model
5.1
5.1
Vulkan
N/A
N/A