Time for CPU Upgrade?

kilrath81 · November 29, 2019

I have a i7 6700k on liquid overclocked to 4.6ghz. Im running 64gb 2166 ram (only got 64gb because i was using the system to host game servers). I just recently bought a Gigabyte Windforce 2070 Super and a 144hz 1440p Monitor. The issue im now having is games like Rust, Wreckfest, etc gaining basically 0 fps going from my 1080 i used to have in 1080p and barely being able to met or sustain 144fps in 1080p or 1440p. Games are installed on a NVMe 4gbps m.2 and os is on raid0 SSDs.

The 2070 Super should be able to do this in its sleep you would think which leads me to think either CPU and/or Ram. I have read that using 4x16gb chips could cause some speed loss on dual channel due to memory controller load but i also read that on a 6700k 2133mhz and 3200mhz basically will perform the same in games. The 2133mhz i have is 2 x "HyperX Fury 32GB DDR4 2133MHz CL14 Dual Channel Kit (2 x 16GB), Black". I have a "TX Series TX750M Semi-Modular 80+ Gold Power Supply, 750W" so i dont think it is a power issue causing things to slow down either.

Rust runs usually around 80-120fps which it also did with the 1080 (unoptimized game but thought maybe cpu bottleneck). Wreckfest runs mostly at 144fps even in 1440p excpet in some corners i get a fps drop into the 70s which makes controlling the car a bit challenging when you all of a sudden get that stutter entering a corner. Even a game i recent got My time in Portia has had some issues here and there. Its not even that intensive of a game.

So the question is, is it the 6700k that is holding up the works? will an upgrade to say a 9700k really make much difference? or is there something else i should look at? The 2070 Super is already got a decent overclock on it and custom fan curve.

Husky · November 29, 2019

I have a 6700K myself and it is not overclocked as high as yours, and I play Rust and other games and not once have I felt that it was a bottleneck, now I don't have a 2070 SUPER but my R9 390X (overclocked to the point that it is screaming for death) is no slouch.

You should maybe open Task Manager on another monitor (if you have) or run some monitoring software like Rivatuner (part of MSI Afterburner) so that you can get an On Screen Display while playing games that you can use to check CPU utilization to see if it is pegging above 90% in any cores in which case you might be CPU bottlenecked.

kilrath81 · November 29, 2019

I had a R9 290 overclocked to hell and back with dual 120mm fans zip tied to the sucker and Rust gave me 70-120 FPS. I then upgraded to a 1080 and again Rust gave me 80-120fps (some spikes higher but never sustained). The R9 290 went into the wifes computer and died recently so the 1080 went to her and i upgraded to the 2070 super for that sweet sweet 80-120fps still in 1080p. Havent even tried 1440 yet.