GeForce GT 640 Rev. 2 and Mobility Radeon HD 5470 - video card comparison
GeForce GT 640 Rev. 2
Mobility Radeon HD 5470
Architecture
Kepler 2.0 (2013−2015)
Terascale 2 (2009−2015)
GPU code name
GK208
Park XT
Market segment
Desktop
Laptop
Release date
May 2013
January 2010
Interface
PCIe 2.0 x8
PCIe 2.0 x16
Supplementary power connectors
None
-
Core clock speed
1046 MHz
750 MHz
Floating-point performance
803.3 gflops
120 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
915 million
292 million
Pipelines / CUDA cores
384
80
Power consumption (TDP)
49 Watt
13-15 Watt
Texture fill rate
33.47
6.000
Memory type
GDDR5
DDR2, GDDR2, DDR3, GDDR3, GDDR5
Maximum RAM amount
1 GB
512 MB
Memory bus width
64 Bit
64 Bit
Memory clock speed
5008 MHz
1800 MHz
Memory bandwidth
40.06 GB/s
25.6 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 1x VGA
No outputs
HDMI
+
-
DirectX
12 (11_0)
11.2 (11_0)
CUDA
3.5
-
OpenCL
1.2
1.2
OpenGL
4.6
4.4
Shader Model
5.1
5.0
Vulkan
1.1.126
N/A