Hi guys,

[Budget]: TBD based on necessity

[Purpose]: Heavy Multitask - easily 40-50 tabs of website, 30-40 taskbars

[Monitor resolution]: Perhaps i will change to dual or tri-monitor setup (different budget to be used for this of course)

[Games & softwares that use frequently]: Well, loads of microsoft words, excels, chrome tabs, taskbars, PDF, and some messaging platforms.

[Personal preferences]: Current rig is sometimes a little too loud when i use too much resources. I know people always say i5 is enough but my current i5 feels lacking.

[Current Rig]:

Intel Core i5 2400
Intel DH67BL Mobo
16GB (8GB x 2) DDR3 Ram
GTX750 Ti 4GB
Crucial MX100 512GB SSD
Samsung Spinpoint 1TB HDD
Corsair HX650W

The above feels laggy to me, i honestly don't know why - is it the CPU's problem? Will changing to i7 make any difference?

Thanks.

Physical Memory is below 50% most of the time.

But CPU Usage jumps a lot. Sometimes can be below 10% jump to over 80%. Is it heat issue? The lag issue i mentioned is like spikes.