Radeon HD 7640G + HD 7670M Dual Graphics and GeForce GT 640 OEM - video card comparison
Radeon HD 7640G + HD 7670M Dual Graphics
GeForce GT 640 OEM
Architecture
Terascale 3 (2010−2013)
Kepler (2012−2018)
GPU code name
-
GK107
Market segment
Laptop
Desktop
Release date
May 2012
April 2012
Interface
-
PCIe 3.0 x16
Supplementary power connectors
-
None
Core clock speed
655 / 600 MHz
797 MHz
Floating-point performance
-
612.1 gflops
Manufacturing process technology
40 nm
28 nm
Number of transistors
-
1,270 million
Pipelines / CUDA cores
736
384
Power consumption (TDP)
-
50 Watt
Texture fill rate
-
25.50
Memory type
-
DDR3
Maximum RAM amount
-
2 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
1800 MHz
1782 MHz
Memory bandwidth
-
28.51 GB/s
Shared memory
+
-
Display Connectors
-
1x DVI, 1x HDMI, 1x DisplayPort
HDMI
-
+
DirectX
11
12 (11_0)
CUDA
-
3.0
OpenCL
-
1.2
OpenGL
-
4.6
Shader Model
-
5.1
Vulkan
-
1.1.126