I Bought this CPU as a Replament for my Pentium D 3.0mhz , and this CPU is very very fast I can easley overlok my new core duo to 4100mhz without the temperatures increasing dramatecley For gamming is faster than most quad cores even for games that actualy use the 4 cores However if you are in to video converting , music coverting or Multi theread appilication a Quad Core would be faster but even on this applications I suggest a Core duo if you have a graphic card you can use the gpu to do this tasks and is at least 4 times faster than any quad core Reasons Why Core 2 duo is KING ? Cpus only have one Front side bus and are 32bit & 64 bit If you 4 cores in the same Cpu they actually have to share the same resources and some times there is false sharing betewen this same resources wich causes fraps or less fluid game play.