Numerous online stores have started to sell Intel Corp.’s yet unannounced microprocessors. The move indicates that the world’s largest chipmaker is about to officially release them and improve its performance leadership in the high-end market.
The new processors are Intel Core i7 975 Extreme Edition (four cores, 3.33GHz, 1MB L2 cache, 8MB L3 cache, 6.40GT/s quick path interconnect bus) as well as Intel Core i7 950 (four cores, 3.06GHz, 1MB L2 cache, 8MB L3 cache, 4.80GT/s quick path interconnect bus). The new Extreme processors costs about $1100, whereas the highest-end non-Extreme processor for $600 to $650.
Intel Core i7-975 Extreme Edition chip that works at 3.33GHz uses newer stepping and can boast with lower power consumption and hence overclockability compared to its predecessor. It is highly likely that the Core i7-950 is also based on the same D0 processor stepping.
Intel Core i7 processors are based in the Nehalem micro-architecture, use QuickPath Interconnect instead of traditional processor system bus (PSB), integrate triple-channel memory controller and are made using 45nm process technology.