HP 646760-001 - Intel Celeron processor B810 - 1.6GHz (Sandy Bridge, 2MB Level-3 cache, 35W TDP) - Includes replacement thermal material Retail
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HP 677153-001 - Intel Celeron B815 Dual-Core processor - 1.6GHz (Sandy Bridge, 1333MHz memory speed, 2MB Level-3 cache, 35W TDP) - Includes replace Retail
HP 664660-001 - Intel Celeron B710 processor - 1.50GHz (Sandy Bridge, 1MB Level-3 cache, 35W TDP) Retail