New Alienware R6 Thermal Temps

Hello, 

I recently got a new aurora R6 and I did a GTA V benchmark test and the GPU went up to 83c and my knowledge of computers says that's a tad High. Can you guys shine some light if it's just my paranoia or something is not right. 

 specs:

i7 7700K - Alienware OEM closed loop water cooled 

GTX 1080 OEM Dell 

460w PSU - I know bad move

16GB Memory 

I recently started monitoring my Temps with CAM but when I saw the 83c I was using HWMONITOR by CPUID

Thanks You