does it make sense to upgrade my 12 y o pc
for about $100-200
some motherborad LGA1155 = around $50
some i5 CPU = around $30-40
sdd - 120gb for system $25
8gb ddr3 = $40-50
does it make any sense or not?
100s down a drain for a still insufficient pc that you won't be satisfied with. So no. At minimum, plan ahead for ryzen 5 2400g system.
Edit: seems that 2400g is all outta stocks and thus overpriced where found. Thus 3400g is what i'd call as starting point.
If your PC is 12 yo the PSU will be nearing end of life anyway.
Also, you'll be upgrading to a PC that still probably won't perform anywhere near what you want.
Better to save a little more and build a budget PC new or recent second hand (ryzen 2nd gen etc).
No, save up for new PC, current 200€ is enough for ryzen 3600, save up 500€ more and you can get decent gaming rig.
Msi b450 max
2x8gb DDR4 3200mhz
550w 80+ PSU
Alternatively you can also get cheap 90$ ryzen 1600, b350 mobo and rest the same