A comparison of Intel Core i5 2400S, Intel Core i5 2500K, Intel Core i5 3470, and Intel Core i7 3770K processors from the Sandy Bridge and Ivy Bridge Intel families under Ubuntu Linux. Benchmarking by Michael Larabel for a future article on Phoronix.com. All four Intel CPUs were running at their stock settings on Ubuntu 12.10 with the Linux 3.5 kernel.