A leaked roadmap has revealed a few more details about the timeframe in which Intel will launch its new Core i3, i5 and i7 processors. Among the upcoming launches are two low-powered "S" versions of the Core i5 750 and i7 860 Lynnfield chips, which will be clocked at 2.4GHz and 2.53GHz (and scale up to 3.2GHz/3.46GHz). The new S chips consume only 82W of power versus 95W, both feature 8MB of L2 cache and should appear in the first quarter of 2010.

It wouldn't be much of a leak if it didn't provide a glimpse at the Clarkdale products to come. If the roadmap is legit, Intel will roll out a new Clarkdale-based Pentium G6950 clocked at 2.8GHz with 3MB of L2 cache. The Core i3 530 and 540 will be introduced with frequencies of 3.06GHz and 2.93GHz, and 4MB of L2 cache.

A few dual-core Clarkdale Core i5 processors are also slated for Q1. The i5 650, 660/661, and 670 will boast clocks of 3.2-3.46GHz, 3.33-3.6GHz, and 3.46-3.73GHz -- much higher than the presently available quad-core i5 750's 2.66GHz. All of the mentioned Clarkdale i5 chips will have a thermal envelope of 73W, except the 661, which will consume 87W.

The roadmap lists Gulftown for release in the second quarter of 2010 -- though, that's not exactly breaking news.