Intel had added 9 new chips to its line of processors based on its 4th-generation Core architecture. They range from a Core i7 chip that sells for more than $1000 to more affordable low-voltage processors priced under $300.
All of the new processors are aimed at notebooks and other mobile devices, but some are designed for high-performance machines while others will show up in value-priced devices or systems that prioritize long battery life over bleeding edge performance.
For instance, the Core i5-4310U is a 2 GHz dual-core chip with Intel HD 4400 graphics and a list price of $281 while the Core i5-4310M is a higher-power version of the same chip with a 2.7 GHz dual-core processor, Intel HD 4600 graphics and a lower price of $225 — but the latter chip will probably be a bit less power efficient.
The folks at CPU World have a more detailed run-down of the new chips.