Question about overclocking my PC

auzzey

Prominent
Dec 16, 2017
2
0
510
Hi, I have some questions about OC.
My PC is 5 years old, and having some troubles with framerates in newer and heavy games, like Witcher 3: Wild Hunt (In intense areas drops to 24-28 fps), and I want to increase minimum FPS for more comfortable experience.
I've already overclocked my GPU (1050MHz GPU Clock/1350x4 MHz Memory Clock, and have no questions about overclocking it, but I have some questions about CPU and RAM).
My components are:
Motherboard: ASUS P8H77-M LE
CPU: Intel i5-3330@3ghz (I know that it's not K series, so can't overclock too much)
RAM: Kingston 8GB PC10666 CL9 1333MHz 9-9-9-24 (kvr1333d3n9/8g)
GPU: ASUS HD7850 2GB
PSU: 500W
No SSD installed, only HDD.
What can I do with my PC without upgrading it? Thanks in advance.
P.S. I know that Witcher 3 is more GPU intensive, so another question, will overclocking CPU and RAM (if it's even possible) help even bit?