So I have AMD Radeon HD 7620G + HD 8670M Dual Graphics and system says 7620G have around 768 mb memory and 8670M have 2024 MB memory, now when I run any game it says I have 768 or 968 sometimes.Can someone tell me where is the rest of memory from 8670M which is around 2 gigs.
For more information the amd software say it as AMD Radeon HD 7620G + HD 8670M Dual Graphics with 768 Mb mem
then 8670M as Linked Card with 2024 mb mem. This is the info by Dxdiag
Card name: AMD Radeon HD 7620G + HD 8670M Dual Graphics
Manufacturer: Advanced Micro Devices, Inc.
Chip type: AMD Radeon Graphics Processor (0x9907)
DAC type: Internal DAC(400MHz)
Device Type: Full Device
Device Key: Enum\PCI\VEN_1002&DEV_9907&SUBSYS_216C103C&REV_00
Display Memory: 6243 MB
Dedicated Memory: 2787 MB
Shared Memory: 3456 MB
Please help me to use my device with it's full potential and I am using the legacy driver which was last support for 7620G, no other driver works since 7620G is marked as primary card.