G86-741-A2 is the Renewed version of The NVIDIA GeForce 8600M G86-740-A2 which is a BGA Graphic processor Chipset. 

Through the design and use of white gum package thermal transistor crystal surface, improved thermal performance, the entire production process is done in Japan, Hitachi.
Codenamed G86 
Manufacturing Process 80 nm 
Core Width 256bit 
Memory Interface 128bit 
Standard Memory Type DDR3 
Core frequency of 600MHz 
Memory Frequency 1400MHz 
Memory bandwidth of 22.4GB / s 
Rendering Pipeline 16 Stream Processors, 1200MHz 
Vertex shader 16 Stream Processors, 1200MHz 
Graphics Interface PCI Express X16 
RAMDAC 400MHz 
DirectX version 10