Ryan333: You may want to check out this article which does some benchmarking and comparison between the i3-8100 and i5-8400 in terms of building a budget-minded PC:
http://minimalisticpc.com/blog/hardware/test-intel-core-i3-8100-i5-8400/
The i3 and i5 will perform very close to each other in many games. In situations where you're playing with minimal graphics demands and trying to push high frame rates, the i5 pulls ahead since the CPU will be the bottleneck in these situations. Otherwise, you'll typically be GPU-constrained -- in which case both CPUs should be able to keep up with a mid-range graphics card running at 1920x1080 resolution and medium to high graphics settings.
For more CPU-intensive tasks like video encoding and file compression, the i5 will have an advantage with its higher turbo speed, as well as it's two extra physical cores and slightly larger cache. You mentioned wanting to keep the system for 6 to 8 years -- the extra cores and cache may help a few years from now as well, as hardware demands increase.
thanks for the reply, 1920x1080 medium to high graphics settings is fine, never gonna use or need it because:
old VGA 1024x768 default ( 85hz (or 75hz)
i'm considering this card:
GeForce® GTX 1050 Ti G1 Gaming 4G ( 4GB ram)
cause the same with only 2 GB might be insufficient, current GPU on win7 = 2 GB , so the 4GB might be better is only a few EU expensive
PC case of course with at least 2 large airfans, trying to geteeven 3,4 or maybe 5 fans( topfan might not fit) ( case will be crowded but cooling is needed.
check attachment ( gpu_vgamonitor.png) to see old current setup ( monitor and GPU)
Winddoze 10 will need at least 16 GB cause 8 is not gonna do the job ,and frustrations of having to use Windoze 10 is bad enough, ist become more like a Winfoes 10 :D
don't need ectra load stress :D
Good old win7 has 8 and it works like a charm. :D
Lin545: they all are same... 8100 has 4 cores which is sufficient. Depends if you are willing to pay extra for 10% more performance or there is a game which is bottlenecked by 4 cores; then 8400.
Well the main reason i need power is because too many 'unitygames' are burning rubber, or in this case burning the cpu, i mean i see many Unitygames claiming the min. req. is 1.6 and sometimes 2.6 ghz, without mentioning double or quad so i assume they refer to old single core, if not, they shoud start to inform users better and also tell if they used unity (so i can skip the games if i know that)
as for a few $ ( euros in my case but few $ more sounds better) more:
it is forced upon us, and me to get Windoze 10, so buying a new pc is not with a smile but with a meh, i have to get it or ... so its not that i really like the idea wasting precious money.
Melvinica: Any of the i5's would do just fine.
Okay , thanks for the info, i also read other replies and they talked about the mhz like 3ghz or 2.x and a turbo...
since Windoze 10 is dumpware anyway i have no choice but to try and make the horrible experience as less horrible as possible.