Intel’s next generation of desktop and mobile processors will retain the chip giant’s Core brand, the company said this morning. No great surprise there, but they won’t be ‘Core 3′ parts.

Nehalem architecture chips will be marked ‘i7′, instead, though Intel further muddied the waters by telling us to expect other such codes for different next-gen CPUs as the roll-out continues through 2009.

The logos Intel published today suggest that while it will continue to offer Extreme-class CPUs, aimed at gamers, they’ll be distinguished visually simply by a black version of the blue logo to be attached to boxes and machines containing regular desktop Core i7s.

There’s logic to the use of ‘i7′: just as Pentium was Intel’s fifth-generation processor architecture, so the new Cores will be its seventh major x86 CPU design.

The fourth quarter will see the introduction of a pair of mainstream desktop quad-core parts and a single Extreme chip. All three processors are codenamed ‘Bloomfield’. The Extreme part is set to clock at 3.2GHz and connects directly to 1333MHz DDR 3 memory. The other two Bloomfields will run at 2.93MHz and 2.66GHz, respectively, and connect to 1066MHz DDR 3.

All three chips can link to three channels of memory.