Random FPS average tank mid game

[HtotheG]

Here's what you are dealing with. Mid game i.e. Cs Go or Overwatch I'll be playing solid over 100 fps overkill for a 60hz monitor so I cap it at 90 just to keep temps down and not overrun anything for no reason. Out of nowhere without opening any programs or nothing new showing up on task manager the fps will drop to 6-7 fps and that's it, it becomes a slideshow out of nowhere. Now I know what you are running to, the temps on both my CPU and GPU do not spike and keep at like 30C. The memory cap doesn't fill on either ram or Vram so we're good there. Complete parts list below, no software updated or changed prior to this issue so it's not a new update or driver issue. No programs installed anywhere near this. In addition, I ran malware bytes and defender not the best but just wanted to try to rule out viruses. The only thing that can fix it is a restart which is strange because you would figure at that point it's a memory cap issue of some sort but there is no indication when watching the VRAM and ram charts that it hits any allocation cap. All other programs still run fine during this I can still manage to watch a video and have excellent ping on the in-game server its literally the hardware. Yes, it pushes the CPU and GPU to full capacity but that's usual. Trying to turn down the graphical settings does nothing and has made it worse while not touching the frame rate it just stays at 6-8 fps. 

 

Parts:

Cpu i5 4670k OC@ 4.2 Ghz stable for a year at the overclock

Cooler Hyper 212 Evo pretty standard

GPU EVGA 750ti Ftw not high end but always ran games on medium-high settings at 1080p with pretty high frame rate

Motherboard Asus Z87- pro 

Power Supply Cooler master M2 silent pro 620W (slightly overkill I know it was cheaper than less dw)

4 case fans 2 stock 2 cooler master 

Case: Corsair vengeance c70 arctic white

 

Hoping to hear some advice as to what I can do. Thanks for your time in advance I'll be on frequently if you need any additional information from me I tried to cover the basics. Good luck because I am clueless

[The Sloth]

update all drivers 

[HtotheG]

1 minute ago, nerdslayer1 said:

update all drivers 

It was an idea and I will but I wanted to rule out it being an issue of a new update that is causing it 

[The Sloth]

1 minute ago, HtotheG said:

It was an idea and I will but I wanted to rule out it being an issue of a new update that is causing it 

drivers on my 1070 has caused issues in the past, that's why i usually update my drivers after i seen a forum post saying its good. downgrade and do the same thing i do.