With AMD's 0.13-micron transition finally going as planned and 90nm still a 2004 item, it is no surprise that Barton is another 0.13-micron core. Replacing the short-lived Thoroughbred, Barton adds one major feature to the Athlon XP's list - a 512KB L2 cache. Other than a larger cache (and a respectively larger die), Barton is no different from Thoroughbred.
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