CPU bottleneck or gpu bottelneck

[Shreyash 22]

Hello 

I have recently purchased a 1070ti after my 970 died . Now after I assembled the PC there are some issues which are occurring in my build 

1.stuttering while gaming like rainbow six siege , lot of stuttering and FPS drop close to 60 FPS from 140.

2. FPS not stable keeps fluctuating  between 80 to 140

3.cpu usage remaining to 80%-100%

4.gpu usage spikes to 50% at times otherwise it stays at 5% 

other then the stuttering issue none of this issue happed with my 970 on th same game settings 

i just wanted to know if there is any bottelneck issue with my card or my cpu ,

i have not oc’Ed my cpu as not a fan of it.

If anyone can help me on this plz do.

 

my system specs

cpu-i5 6600k

mobo-z270 strix gaming F

Gpu- 1070ti

Ssd-850evo 250gb

hdd-sea hate barracuda 512gb

psu-Corsair 650watts

ram- Corsair vengeance 8go 2100

coolrr-hyper 212led

(if this is not in the right forum s change)

 

[bellabichon]

That's a CPU bottleneck. It's time to upgrade. For your system, I would recommend the 8600K. New, lightning fast, and not too expensive.

[m0k]

if your cpu usage is that high - and your gpu usage is that low = your cpu is the bottleneck

if your cpu overclocked? if not i woudl highly recommend overclocking to get some more use out of it

or else i would recommend an i7 6700k if your games and apps are optimized for more threads

[Jurrunio]

cpu bottleneck. OC that. Your cooler will limit your OC though, just watch the temps and dont let it get past 75C under P95 stress test.

[mr_bres]

He has an Asus Strix z270 so i would imagine it will have an auto overclock function, try using one and keep and eye on temps and see if your FPS increases.

[Shreyash 22]

Okk thank you I’ll do the overclocking then.thank u for the help