Radeon HD 7640G + HD 7670M Dual Graphics and GeForce Go 7900 GTX - video card comparison
Radeon HD 7640G + HD 7670M Dual Graphics
GeForce Go 7900 GTX
Architecture
Terascale 3 (2010−2013)
G7x (2005−2007)
GPU code name
-
G71M
Market segment
Laptop
Laptop
Release date
May 2012
April 2006
Interface
-
PCIe 1.0 x16
Supplementary power connectors
-
None
Boost clock speed
-
500 MHz
Core clock speed
655 / 600 MHz
8 MHz
Manufacturing process technology
40 nm
90 nm
Number of transistors
-
278 million
Pipelines / CUDA cores
736
32
Power consumption (TDP)
-
45 Watt
Texture fill rate
-
12.00
Memory type
-
GDDR3
Maximum RAM amount
-
512 MB
Memory bus width
128 Bit
256 Bit
Memory clock speed
1800 MHz
1200 MHz
Memory bandwidth
-
38.4 GB/s
Shared memory
+
-
Display Connectors
-
No outputs
DirectX
11
9.0c (9_3)
OpenCL
-
N/A
OpenGL
-
2.1
Shader Model
-
3.0
Vulkan
-
N/A