Lenovo Intel Xeon Silver 4208 Processor Option Kit for ThinkSystem SR550/SR590/SR650, Intel Xeon Silver, LGA 3647 (Socket P), 14 nm, 2.1 GHz, 64-bit, 2nd Generation Intel® Xeon® ScalableLenovo Intel Xeon Silver 4208 Processor Option Kit for ThinkSystem SR550 SR590 SR650. Processor family: Intel Xeon Silver, Processor socket: LGA 3647 (Socket P), Processor lithography: 14 nm. Memory channels: Hexa channel, Maximum internal memory supported by processor: 1 TB, Memory types supported by processor: DDR4 SDRAM. Market segment: Server, Supported instruction sets: AVX 512, Scalability: 2S. Processor package size: 76 x 56. 5 mm.