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GamerNewb: You forgot to post the CPU specification of both your laptop and PC (exept laptop's CPU is Intel Atom to be precise) and if you feel comfortable by playing with PC instead of laptop, then just upgrade it because upgrading the specs of a laptop is hard to do (most of the laptops can't be upgraded at all like upgrading their CPU) so i suggest to upgrade your PC to play games and S3 (when S3 will be released) without lags and such, and S3 won't requie high specs at all.