Core i7-5557U is a mobile processor from Intel released on 1 March 2015, and it is in active production status now. It belongs to Core i7 family and has a Broadwell-U architecture. This processor is built on Intel BGA 1168, and uses unknown PCI express connection. 14 nm process is used in production.
Processor has 2 cores and 4 threads, with the base frequency of 3.1 GHz. It has DDR3 memory support. As for the cache, it supports L1 64K (per core), L2 256K (per core) and L3 4MB (shared).