E-cig

[~Axis~]

I have got an offer to buy a used pc. Is this pc will be good for online gaming?
OS: Windows 8.1 64 bit
CPU: AMD FX-8350 Black Edition
GPU: MSI GeForce GTX 760 Gaming 4GB
Motherboard: ASUS M5A99X EVO R2.0, Socket-AM3+
Memory: Corsair Vengeance DDR3 1600MHz 8GB CL9
Storage: Corsair Force Series GS 128GB and WD Caviar Blue 1TB 7200RPM
Optical drive: ASUS DVD Writer, DRW-24F1ST
Power supply: Corsair CX 600M, 600W PSU
Case: NZXT Phantom 410

That depends on the game. Are the games you have in mind require many resources? The specs you mentioned should be able to play any pc game pretty well. I guess that's the same for online gaming. Keep in mind that some games don't really perform well during online play (reduced frame rate, lagging, frequent disconnections, etc...). That's just how some are made. I hope I helped.