Seasonic G series 550w good enough for gtx980?

[projenk]

Hi guys, as per the title I would like to know if my actual PSU would be good enough to run a gtx980 in my system. At the moment I have a Msi GTX 970 and wanted to go for the gigabyte 980. So far I didn't have any problem with my PSU, sometimes witcher 3 crashes, but I figure that's normal and I am not so sure it depends by the PSU. The rest of my configuration is: i5 4670k, gigabyte z87 g1 sniper, two Samsung ssd, cooler Master 412, 1tb hard drive and 4x4 GB crucial Ballistix sport ddr3 1600Mhz.
The psu link is this: https://www.overclockers.co.uk/showproduct.php?prodid=CA-018-SS
Thank for your help

 

[projenk]

Thanks guys, then now it's time to ask in the other section about which gtx 980 would be better, but I think it all comes down to liking... Thanks again

 

[projenk]

I am giving my gtx970 as a present.. Otherwise i wouldn't even think of changing it for the 980 and the 980ti is just too expensive, considering that I don't plan to go for 2 or 4k.... Unless prime day will do miracles but I wouldn't count on it too much