This is good pc for gaming?

Sooo this is essentially my setup. My processor is low power tho so clocked a little slower and my graphics card isn't exactly the same but isn't too much more than yours. You'll want to upgrade to 8gb of RAM, do it with two 4gb's rather than one 8gb if possible. Otherwise you should be pretty good. It should run everything. Max settings will push it and tend to run under 30FPS at 1080p for the newest titles (like say Witcher 3) but I have yet to find a game where turning down some settings you couldn't get at least 30FPS and usually 60FPS. Your experiences may vary though.

So yeah, it's not a max machine but it'll run everything... sometimes turning down stuff is needed but so far pretty much everything still look awesome. I haven't had to go below medium yet in any game.

Also games, websites etc will sometimes recommend minimum settings, heck even Geforce Experience will recommend it because the i3 4130 is dual core so games will lump it in with the other dual cores aka usually below the quad core recommended spec. However the i3 4130 has hyperthreading which allows it to process like a quad core and more power than the standard dual core of old.

The last thing I'll note as I've run into it myself is i3 has a bit of a stigma in the PC gaming community. It's by no means some kind of miracle processor no but it's not as bad as most people will have you think. They'll be quick to say it won't work at all, run bad etc etc. In my experience will this processor, it's not been that bad at all. It definitely could use a boost, it's not completely ideal for gaming but it hasn't been completely choking either. It's held up.

If you have any plans to livestream/record you'll want something better unless you're OK with shadowplay. For new games the processor won't have enough left over most of the time. Shadowplay does a really fine job though if you don't need the advanced settings of a set program.