Low FPS in minecraft?

hdgro11

Prominent
Jul 9, 2018
75
1
635
Hello, so my friend recently built his own PC. It has an i3 2100, an ACER H61H2-AD motherboard with 8 GB of CL9 1333MHz RAM. He currently doesn't have a dedicated graphics card, and minecraft vanilla runs at 80-100 FPS on lowest graphics settings, with GPU usage hovering at around 14% in MSI Afterburner. When he loads some mods (around 70, his cpu and ram should be able to handle them) his FPS drops to 2-3 FPS while looking forward, around 80 while looking up and 12 while looking down. His CPU usage is around 60% and only 5GB of RAM are used. GPU usage stays the same, so I've been wondering what causes all that lag.
 
Solution
It's also going to come down to the mods themselves, you could have 100 minor mods for a game like Skyrim and have it run smoothly or have 20 major graphic mods that could bring a newer high end system to it's knees. Deleting one mod at a time and playing the game may show you which one is causing the low FPS.

Adjusting the mod load order may help as well.

spdragoo

Splendid
Ambassador


Definitely got to agree.

Looks like that's a prebuilt Acer system, & it's limited to Sandy Bridge/2nd generation Core i3 & i5 CPUs (see here & here). Best bet for the CPU upgrade would be an i5-2400 (same speed, but upgrades from 2C/4T to 4C/4T), but he'll still be limited on the integrated graphics. It has a PCIe x16 (2.0) slot, & since it's a mATX board I don't think it'll be limited to low-profile GPUs. Probably getting at least a GTX 1050 would be a big improvement...but again, having 70 mods is going to punish just about any PC.
 

hdgro11

Prominent
Jul 9, 2018
75
1
635


He is going to buy a GT 1030 to go along with his cpu, but he is currently saving up to buy one. My Athlon II x3 455 can handle around 64 mods at 30 fps, and it's quite a bit slower than the i3. It can handle SkyFactory 3 with over 100 mods with ease too.
 

WildCard999

Titan
Moderator
It's also going to come down to the mods themselves, you could have 100 minor mods for a game like Skyrim and have it run smoothly or have 20 major graphic mods that could bring a newer high end system to it's knees. Deleting one mod at a time and playing the game may show you which one is causing the low FPS.

Adjusting the mod load order may help as well.
 
Solution