GeForce GT 240 and GeForce GT 645 OEM - video card comparison
GeForce GT 240
GeForce GT 645 OEM
Architecture
GT2xx (2009−2012)
Fermi 2.0 (2010−2014)
GPU code name
GT215
GF114
Market segment
Desktop
Desktop
Release date
November 2009
April 2012
Bus support
PCI-E 2.0
-
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
-
Core clock speed
550 MHz
776 MHz
CUDA cores
96
-
Floating-point performance
257.28 gflops
894.0 gflops
Manufacturing process technology
40 nm
40 nm
Number of transistors
727 million
1,950 million
Pipelines / CUDA cores
96
288
Power consumption (TDP)
69 Watt
102 Watt
Maximum GPU temperature
105C C
-
Texture fill rate
17.60
37.25
Memory type
GDDR5
GDDR5
Maximum RAM amount
512 MB or 1 GB
1 GB
Memory bus width
128 Bit
192 Bit
Memory clock speed
1700 MHz GDDR5, 1000 MHz GDDR3, 900 MHz DDR3 MHz
3828 MHz
Memory bandwidth
54.4 GB/s
91.87 GB/s
Display Connectors
DVIVGAHDMI
2x DVI, 1x mini-HDMI
Multi monitor support
+
-
HDMI
+
+
Maximum VGA resolution
2048x1536
-
Audio input for HDMI
Internal
-
DirectX
11.1 (10_1)
12 (11_0)
CUDA
+
2.1
OpenCL
1.1
1.1
OpenGL
3.2
4.6
Shader Model
4.1
5.1
Vulkan
N/A
N/A