Gigabyte GA-Q57M-S2H User Manual page 49

On-Chip Frame Buffer Size
Frame buffer size is the total amount of system memory allocated solely for the onboard graphics con-
troller. MS-DOS, for example, will use only this memory for display. Options are:
32MB+2MB for GTT, 64MB+2MB for GTT (default), 128MB+2MB for GTT.
- 49 - BIOS Setup