just a quick quesiton, will i notice any difference interms of multitask( having 10 firefox explorers , playing music, aiming) , boot time if i moved to e6550?
The E2160 and E6550 are both dual-core processors, so one won't inherently be better at multi-tasking at once. However, especially if you're not overclocking, the E6550 has a higher clock speed, and also has four times as much L2 cache, so will certainly be faster. It would be a bad purchase today though, the E8190 is the same list price and is both faster and 45nm (cooler/lower power), provided your motherboard is okay with the new processors - it might need a BIOS update.
As for whether you'd notice the difference - do you find that you're approaching 100% CPU utilisation, or find your system sluggish? If so, then it would probably help.
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