Before revision: Typically, the board area decreases four times with each of these steps, so a brassboard is one fourth as large as an EVB, four times larger than a wingboard and around sixteen times larger than a production device.
After revision: In a single example the botherd therea decreases four times with each of these steps, so a brassboard is one fourth as large as an EVB, four times larger than a wingboard and around sixteen times larger than a production device.