Two yet unseen CPUs, the Core i7 950 and 975 Extreme, that will replace existing Core i7 940 and 965 Extreme models, were detailed today by etailers PCs For Everyone and PROVANTAGE. The Core i7 950 model is now up for preorder at PCs For Everyone, priced at $649. It is set at 3.06 GHz, with 8 MB shared L3 cache, 4 cores with HT, and 130 W TDP (full specs below). Availability date according to the etailer is May 31st. The second and more powerfull CPU, the Core i7 975 Extreme is yet to receive release date, for now you can only wish list it. If right, the CPU will be clocked at 3.33 GHz, have 8 MB shared L3 cache, and cost well over $1,100.
Intel Core i7 950 Specifications:

Product Type: Desktop
Product Line: Core i7
Socket: LGA1366 Socket
Clock Speed: 3.06 GHz
QuickPath: 4.8 GT/s
L3 Cache: 8 MB Shared
L2 Cache: 4 x 256 KB
L1 Cache: 4 x 64 KB
Package Type: 1366-land Flip-Chip Land Grid Array (FC-LGA8)
Threads: 8
Manufacturing Process: 45 nm
Thermal Design Power: 130W
Thermal Specification: 67.9°C
Core Voltage: 0.8 - 1.375V
Intel VT: Yes

Source: Neowin