HD Graphics 4400 and GeForce GT 640 OEM - video card comparison
HD Graphics 4400
GeForce GT 640 OEM
Architecture
Gen. 7.5 Haswell (2012−2013)
Kepler (2012−2018)
GPU code name
Haswell GT2
GK107
Market segment
Laptop
Desktop
Release date
June 2013
April 2012
Interface
PCIe 1.0 x16
PCIe 3.0 x16
Supplementary power connectors
-
None
Boost clock speed
1100 MHz
-
Core clock speed
200 MHz
797 MHz
Floating-point performance
46 gflops
612.1 gflops
Manufacturing process technology
22 nm
28 nm
Number of transistors
392 million
1,270 million
Pipelines / CUDA cores
20
384
Power consumption (TDP)
20 Watt
50 Watt
Texture fill rate
22.00
25.50
Memory type
System Shared
DDR3
Maximum RAM amount
System Shared
2 GB
Memory bus width
64/128 Bit
128 Bit
Memory clock speed
System Shared
1782 MHz
Memory bandwidth
-
28.51 GB/s
Shared memory
+
-
Display Connectors
No outputs
1x DVI, 1x HDMI, 1x DisplayPort
HDMI
-
+
DirectX
12 (11_1)
12 (11_0)
CUDA
-
3.0
OpenCL
1.2
1.2
OpenGL
4.3
4.6
Shader Model
5.1
5.1
Vulkan
1.1.80
1.1.126
Quick Sync
+
-