What's the better processor for Rust?

So at the moment i’m having a6-6400k dual core 4,1ghz processor, but i have an option to upgrade to AMD Athlon x4 740 quad core 3,7ghz cpu. a6-6400k has around 20% better single core performance while x4 740 has around 60-70% better multi-core performance. Also i have AMD Radeon R7 360 2GB GDDR5 graphics card and 4gb 1600mhz cl9 ram, which processor will cause less bottleneck for gpu and give more fps in Rust?

Rust requires 8gb RAM minimum.

Yeah i plan on adding 4gb of ram, but what do you think which processor is better of those 2?

Am not sure, I got an old FM1 AMD A8-3870 (4 cores 3ghz).

It depends where I am ingame but most of the time I get a minimum of 50 fps.

How’s your performance ingame?

What’s your graphics card? My performance is great in like low-building areas that dont have much grass either but drops when there a lot of trees and stuff. For example 20-30 in high build areas, but around 40-45 in low build areas.

Sapphire Nitro R9 380 4gb

EDIT: I guess I give alot potential away with my old core but I dont know for sure lol.

Yeah for sure. R9 380 is beast. What options are u playing at?

Am playing on fantastic with some tweaks here and there.

Okay ty for answer.