[SOLVED] Is my PC being bottlenecked or is something else causing the LAG?

[shnek]

So I recently bought a GTX 1080Ti because I had a really old GPU before. I have an i5-4690 (yes, I know, and old i5 with a 1080Ti) and 16GB DDR3 RAM. I was upgrading my PC about 3 years ago for about as much money, as is only the GPU now, so that's why just DDR3 and i5.

Anyways, I thought, getting this powerful GPU would make my PC run any game pretty well regarding FPS. Well, a lot of games are still lagging. I get like 200 FPS on Fortnite (don't judge me, I'm not playing it anymore) but fairly often, it drops for a second or so to like 30. So I tried locking the FPS to 60 (I have a 60Hz monitor anyway), the drops were still there, but not as much, because the drops weren't so significant.

I think that my CPU is slowing down my GPU and am thinking of getting a new one for Christmas, but I don't want to buy it, if I don't really need it because the lag is caused by something else.

 

[ebosss03]

If you get a new CPU, Mobo and RAM it should be fixed however there are some temporal solution to get less stutters.
1. try getting rid of background cpu usage
2. Turn down some lightning effects and shaders since that is a great hit in cpu
3. you can upscale the game in NVIDIA's config (LMB on desktop) to run at 2k or 4k to get more load on the GPU to decrease stutters.

 

[Lutfij]

Might want to pass on your specs like so:
CPU:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:

Are you on the latest BIOS update for your motherboard? Did you uninstall and reinstall your GPU drivers? Have you seen the same issue crop up on other games?

At this point of time, you should look into a concurrent platform.