GeForce GT 640 and HD Graphics P4000 - video card comparison
Passmark - benchmark score GeForce GT 640 vs HD Graphics P4000
GeForce GT 640
1209
HD Graphics P4000
531
GeForce GT 640
HD Graphics P4000
Architecture
Kepler (2012−2018)
Generation 7.0 (2012)
GPU code name
GK107
Ivy Bridge GT2
Market segment
Desktop
Desktop
Release date
June 2012
May 2012
Interface
PCIe 3.0 x16
PCIe 1.0 x16
Supplementary power connectors
None
-
Boost clock speed
-
1250 MHz
Core clock speed
902 MHz
650 MHz
Floating-point performance
692.7 gflops
-
Manufacturing process technology
28 nm
22 nm
Number of transistors
1,270 million
1,200 million
Pipelines / CUDA cores
384
128
Power consumption (TDP)
65 Watt
45 Watt
Texture fill rate
28.86
20.00
Memory type
DDR3
System Shared
Maximum RAM amount
2 GB
System Shared
Memory bus width
128 Bit
System Shared
Memory clock speed
1782 MHz
System Shared
Memory bandwidth
28.51 GB/s
-
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
No outputs
HDMI
+
-
DirectX
12 (11_0)
11.1 (11_0)
CUDA
3.0
-
OpenCL
1.2
1.2
OpenGL
4.6
4.0
Shader Model
5.1
5.0
Vulkan
1.1.126
1.1.80