Lenovo Intel Xeon E5420, Intel® Xeon®, LGA 771 (Socket J), 45 nm, Box, E5420, 2,5 GHz Lenovo Intel Xeon E5420. Processor family: Intel® Xeon®, Processor socket: LGA 771 (Socket J), Processor lithography: 45 nm. Market segment: Server. L1 cache: 0,128 MB