On the CPU front, Puma-based notebooks will be based on the AMD Turion X2 Ultramobile processor which uses Hypertransport 3 bus for extremely fast (2.6GB/s) data transfer between CPU and chipset, power management that can turn whole segments of the chip off on a millisecond-by-millisecond basis to save power. Intel is only now catching up to AMD’s use of Hypertransport after many years, with its competing QuickPath technology, which will debut in its Nehalem-class Core 2 Duos later this year.