PowerLogix today announced the PowerForce G4 1.4GHz upgrade card for the Power Mac G4 Cube. Running at a speed of 1.4GHz, the new CPU card has twice the L2 cache (512K) of the previous 7455-based cards (256K) for additional performance. In addition, the new 7457 draws 40 percent less peak power than the previous chip for “cool and reliable, high-performance operation.” The card includes 2Mb of L3 cache. The upgrade is priced at US$599 and will be shipping in approximately 1-2 weeks.