I have question about my alienware 15 for VR

i found this q&a in some web page....

Q: Can you run Virtual Reality through the Alienware Graphics Amp? 
A: The short answer is Yes, but it does depend on the system specs of the computer and the graphics card in the Graphics amp. Users should follow the recommended specs for VR and check out the certified VR ready PC’s as posted by HTC or Oculus. For VR through an Alienware Graphics Amplifier on Alienware notebooks, we would recommend using only the Alienware 15 and Alienware 17 with 8 GB of memory or higher and an Intel Core i7 or Core i7k processor in the system. For the Alienware X51 R3 we would recommend a Core i5 processor with 8 GB of memory or higher. Do note, VR setups using the Alienware Graphics Amplifier are not a supported configuration of either the Oculus Ready or HTC Vive Optimized programs and each setup will vary in the ease of use and compatibility. 

ok i got it so i get  graphics amplifier and gtx970 or hight then 970... i can play VR

ok... i get it but here is my question this Q&A says.. 

Intel Core i7 or Core i7k processor in the system for play vr

now my alienware 15 has i7 4720HQ and it's 4th generation cpu 

so.. if i want to play VR i need 6th generation cpu for vr?

and if i can't play vr whit my i7 4720HQ .... do i have to change my cpu to 6th generation cpu?

and if i pay some money... can i change my cpu in alienware 15?

please give me some advice for me!!!