Originally Posted by chaics
R9 280X can consume up to 300W. hmm, which R9 280X you planned to buy?
Define one way to find out plz.. buy and put it for test run? i wish to buy and use straight away instead of buy, test, sell then buy others.. quite a hassle for me..
im looking at MSI R9 280X GAMING 3G or GIGABYTE R9 280X 3GB. Will this be a good upgrade comparing my aging CFx 6850?[/quote]
Buy it and use it. If it don't hold under load then its time for a bigger PSU. It will power on for sure but when its at 100%, that all will depend on what the rest of your system in consuming (CPU, RAM, Motherboard, Fans, USB devices, Lights). If you can't afford the extra $120 for a 800w PSU maybe hold off on the 280x until you can.