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The chips will compete head to head with Intel's fastest mobile Pentium III-M and mobile Celeron processors.
Both the mobile Athlon 4 and mobile Duron processors use a 200MHz front-side bus and AMD's PowerNow power-management technology, which the company claims can extend battery life by up to 30%. The mobile AMD Athlon 4 has 384Kb of on-chip cache and the mobile Duron has 192Kb of on-chip cache.
The 1.2GHz mobile Athlon 4 costs $525 (£363) and the 950MHz mobile AMD Duron processor costs $160 (£122) per 1,000 units. By comparison, Intel's 1.2GHz mobile Pentium III-M processor costs $722(£500) and the 933MHz mobile Celeron processor costs $134 (£92), in 1,000-unit quantities.
The 1.2GHz mobile Athlon 4 and 950MHz mobile Duron will both find homes in Compaq's Presario 700 notebook series, AMD said. The systems are expected to be available from 21 November.