Well i dunno what your on about but i think your talking about Intels new way to renaming thier processors... i think they just heat up too much and would go with AMD, also AMD are better for gaming too!
Yeah, but that's the 600 line (Its very nice though! 2Megs Cache, 1,066Mhz FSB) but moving on hmmm... the 300s are Celeron Ds. They are pretty good budget processors - and will do games. But it really depends on the game as there are a number of games that just won't play, and a good number that won't work well.