Dear Clevo P650RS Users, I'd like some advice on CPU x GPU combo.

I am going to make the purchase this week and one last thing has been bugging me. Some advice from guys with first hand experience will be very much appreciated. Is the i7 6700hq a good pair up with the GTX 1070 or will I better off with a i7 6820hk? See I'm seriously thinking about the life of the laptop in the long run. Sure the 6820hk can be overclocked but that will cause the machine to run even hotter (correct me if I'm wrong) thus shortening lifespan and other more annoying ****. While I'm not that interested in overclocking the cpu, I am definitely interested and willing try undervolting (currently researching) to reduce temps. So I'm kinda torn. How are these cpus performance wise (bottlenecks, etc)? Is a 6820hk worth it even though I most like won't overclock?

Here's is my current build from a generated quote that I shortened a bit: Chassis & Display Defiance Series: 15.6" Matte Full HD IPS LED Widescreen (1920x1080)

Processor (CPU) Intel® Core™ i7 Quad Core Processor 6700HQ (2.6GHz, 3.5GHz Turbo)

Memory (RAM) 8GB HyperX IMPACT 2400MHz SODIMM DDR4 (1 x 8GB)

Graphics Card NVIDIA® GeForce® GTX 1070 - 8.0GB GDDR5 Video RAM - DirectX® 12.1, G-SYNC

M.2 SSD Drive 512GB SANDISK X400 M.2 2280 (up to 540MB/R, 520MB/W)

Memory Card Reader Integrated 6 in 1 Card Reader (SD /Mini SD/ SDHC / SDXC / MMC / RSMMC)

AC Adaptor 1 x 230W AC Adaptor

Power Cable 1 x 1 Metre UK Power Cable (Kettle Lead)

Thermal Paste ARCTIC MX-4 EXTREME THERMAL CONDUCTIVITY COMPOUND

Sound Card Intel 2 Channel High Def. Audio + MIC/Headphone + SoundBlaster X-Fi MB3

Bluetooth & Wireless GIGABIT LAN & WIRELESS INTEL® AC-8260 M.2 (867Mbps, 802.11AC) + BLUETOOTH

USB Options 3 x USB 3.1 Type A, 2 x USB 3.1 Type C AS STANDARD

Battery Defiance Series 4 Cell Lithium Ion Battery (60WH)

Operating System Genuine Windows 10 Home 64 Bit - inc DVD & Licence