The Athlon 64 X2 4800+, the high-end of the announced desktop X2 lineup, is a 2.4GHz CPU fabricated on AMD's 90nm SOI (Silicon on Insulator) process with 128 KB of L1 cache and 1 MB of L2 cache per core -— essentially two Athlon 64 4000+s in a single chip in terms of clock speed and cache sizes. Based on the new Toledo core, a Rev-E stepping for AMD's 1 MB L2 cache CPUs, the X2 processors have a total transistor count of roughly 233 million for the entire die.

The X2 4600+ is also clocked at 2.4GHz, but offers a reduced L2 cache of 512 KB. The 4400+ and 4200+ likewise follow this pattern: both processors are clocked at 2.2GHz, with the higher model number offering a larger cache (1 MB) per core. These clock speeds, matching the frequencies of AMD's current single-core offerings, are a sharp contrast with Intel's 840 processor and its 600MHz clock rate disparity in comparison to the company's fastest single-core processor.



Link: SimHQ