GRAM/512S-A00 - 512KB geoRAM clone for Commodore 64/128Submitted by GG on Wed, 05/20/2015 - 19:37
A new version of this project is available here
The geoRAM is a 512KB memory expansion for the Commodore 64 and 128 designed by Berkeley Softworks for use with GEOS. While not as fast as the Commodore REU due to its lack of DMA capabilities, it still provides a significant performance boost. GRAM/512S is a geoRAM compatible cartridge based on a single 512Kx8 SRAM.