New Laptop

[ash23]

Hi everyone,

I would appreciate some help from the tech savvy people on here please.. I am buying a new laptop for mostly 5 boxing dungeon groups in wow for Legion. I decided on MSI and the configuration is below:

MSI GT72S 6QF Dominator Pro 4K-059 i7-6820HK 2.7GHz 8G 980 Desktop 16G RAM 256G RAID SSD 1TB HDD 17.3"

Intel Core i7-6820HK Quad Core Processor, 2.7 GHz (Max Turbo Frequency 4.2GHz)
Kingston HyperX Impact 32GB Dual Channel DDR4 at 2400MHz (4 x 8GB)
NVIDIA GeForce GTX 980 GDDR5 8GB (Desktop Version)
17.3" 3840 x 2160 4K UHD (16:9) IPS LED
Samsung 950 Pro 512GB M.2 NVMe PCIe x4 3D-VNAND SSD
Samsung SM951 128GB M.2 PCIe x4 SSDM.2 SATA SSD Slot 1
Samsung 850 EVO (3D VNAND TECH) 500GB M.2 SATA3 6Gb/s SSD
1TB 7200 RPM SATA 6Gb/s Hard Drive
1TB 7200 RPM SATA 6Gb/s Hard Drive
Windows® 10 Home, 64bit, English

MyWir
Now i am stuck on whether to get the same configuration without 4k but with a 6920 processor

http://www.hidevolution.com/msi-gt72...-hdd-17-3.html

or go for something similar with the 6820 processor.. ?

so my question is: is the faster processor and the $600 increase in price will make the games run noticeably smoother when multiboxing?

Thank you for your help.