PowerLogix today announced two new CPU upgrade cards based on the IBM PowerPC 750 GX that deliver clock speeds up to 1GHz with a full megabyte of cache also running at 1GHz. The 1GHz Blue Chip G3 Pismo (US$399), which is compatible with all Pismo G3 PowerBooks, is 2 to 2.5 times faster than the clock speed of a stock machine. The 1GHz PowerForce G3 ZIF ($349), which is compatible with the Power Mac G3 Beige, Blue & White, and original PCI Power Mac G4, offers up to four times the performance of the original Power Mac.