http://www.intel.com/consumer/produc...comparison.htm
2.8 ghz i7 with 4 gb ram Final answer
I7 has much more processors speed
And in the future you can always upgrade the Ram to 8gig or more, just make sure the latop/desktop doesn't have an integrated graphics, anything ATI or Nvidia. 1.0 or 1.5 at best for laptops.