From Intel’s first disclosure of Nehalem we knew that the architecture, albeit optimized for quad-core processors, would scale up to 8 cores and down to 2:

Lynnfield, however, does not scale Nehalem’s core count in any direction. The eight-core derivative is Nehalem-EX and the two-core versions will appear later this year in 32nm mobile form. Lynnfield is a direct replacement for the quad-core Penryn CPUs that have dominated the market for the past year and a half.
| Name | Manufacturing Process | Cores | Target Market | Release |
| Gulftown | 32nm | 6 | High End Desktop | 1H 2010 |
| Core i7 (Bloomfield) | 45nm | 4 | High End Desktop | Q4 2008 |
| Lynnfield | 45nm | 4 | Performance Desktop | Q3 2009 |
| Clarksfield | 45nm | 4 | High End Mobile | Q3 2009 |
| Clarkdale | 32nm | 2 | Mainstream Desktop | Q4 2009 |
| Arrandale | 32nm | 2 | Mobile | Q4 2009 |
A few places have published rumored Intel roadmaps for Lynnfield, indicating that three Lynnfield chips will be launched in the second half of this year:
| Model Number | Clock Speed | Cores / Threads | Maximum Single Core Turbo Frequency | TDP | Price |
| ? | 2.93GHz | 4 / 8 | 3.60GHz | 95W | $562 |
| ? | 2.80GHz | 4 / 8 | 3.46GHz | 95W | $284 |
| ? | 2.66GHz | 4 / 4 | 3.20GHz | 95W | $196 |
All of the processors are quad-core Nehalems with the same cache sizes as the Core i7. The only crippled beast is the entry level Lynnfield that has Hyper Threading disabled. Note the ridiculously high turbo frequencies which are, I believe, Lynnfield’s secret weapon.
| Processor | Price |
| Intel Core i7-940 (2.93GHz) | $562 |
| Intel Lynnfield 2.93GHz | $562 |
| Intel Core i7-920 (2.66GHz) | $284 |
| Intel Lynnfield 2.80GHz | $284 |
| Intel Lynnfield 2.66GHz | $196 |
| Intel Core 2 Quad Q9650 (3.00GHz) | $316 |
| Intel Core 2 Quad Q9550 (2.83GHz) | $266 |
| Intel Core 2 Quad Q9400 (2.66GHz) | $213 |
| Intel Core 2 Quad Q8400 (2.66GHz) | $183 |
| Intel Core 2 Quad Q8200 (2.33GHz) | $163 |
With a 2.66GHz Lynnfield and a $100 P55 motherboard you now have the ability to deliver a good quad-core system at around $150 - $200 cheaper than the cheapest Core i7. Price-wise the 2.66GHz Lynnfield would be priced cheaper than today's Core 2 Quad Q9400, and as you'll see Lynnfield is clearly a faster bet.
The 2.80GHz Lynnfield should also be able to outperform the i7-920 without a problem, at a lower total system cost as well.
There is exactly zero reasons to release so many different chips, except for crap manufacturing.
Buy an i7, be done. i5 = celeron = piss off Intel. ATI and NVIDIA can piss off as well for release 10 different versions of video cards per generation.