HD Graphics and GeForce GT 640 Rev. 2 - video card comparison
HD Graphics
GeForce GT 640 Rev. 2
Architecture
Generation 7.0 (2012)
Kepler 2.0 (2013−2015)
GPU code name
Ivy Bridge GT1
GK208
Market segment
Desktop
Desktop
Release date
April 2012
May 2013
Interface
PCIe 1.0 x16
PCIe 2.0 x8
Supplementary power connectors
-
None
Boost clock speed
1050 MHz
-
Core clock speed
166 MHz
1046 MHz
Floating-point performance
15.6 gflops
803.3 gflops
Manufacturing process technology
22 nm
28 nm
Number of transistors
392 million
915 million
Pipelines / CUDA cores
48
384
Power consumption (TDP)
35 Watt
49 Watt
Texture fill rate
6.300
33.47
Memory type
System Shared
GDDR5
Maximum RAM amount
System Shared
1 GB
Memory bus width
System Shared
64 Bit
Memory clock speed
System Shared
5008 MHz
Memory bandwidth
-
40.06 GB/s
Display Connectors
No outputs
1x DVI, 1x HDMI, 1x VGA
HDMI
-
+
DirectX
11.1 (11_0)
12 (11_0)
CUDA
-
3.5
OpenCL
1.2
1.2
OpenGL
4.0
4.6
Shader Model
5.0
5.1
Vulkan
1.1.80
1.1.126