2500S should auto clock from 2.7 GHz to 3.7 GHz depending on load, and should have the limited 4 bin turbo boost clock to hit 4.1 GHz on one core with a p67, z68 or z77 motherboard.
2500S should auto clock from 2.7 GHz to 3.7 GHz depending on load, and should have the limited 4 bin turbo boost clock to hit 4.1 GHz on one core with a p67, z68 or z77 motherboard.
I forgot about the old Turbo bin overclock. I think some later BIOS revisions actually removed it from LGA 1155 due to Intel not being pleased about it.
The 2500S is also a lower voltage part. 65w vs 95w for the 2500.