Upgrades are always an option - just depends upon the lengths you are willing to go to. 90% of the time the value is not there for the cost/effort when dealing with laptops - especially if "reballing" is required. But if you check out that vid, you'll see that removal of those three components is (relatively) easy. don't even have to watch three minutes to see Ram, CPU and GPU removed - with nothing more than a screwdriver and plastic shim.what do you mean? I don't think that you can replace the CPU after you bought it.
You can customize the GT 70 before you buy..