Will this power my new build?

[Bexx]

Current build:
Corsair 50​0W CX Buil​der 80 Plu​s Bronze P​SU
AMD FX-430​0 3.8GHz S​ocket AM3+​ 8MB
Kingston 240GB SSD
Kingston 8​GB (2x4GB)​ DDR3 1600​MHz
Toshiba 1T​B
Asus M5A78​L-M/USB3 A​MD Socket ​AM3+ M​otherboard
MSI HD 775​0 2GB

Just ordered a new GPU, R9 290 TRI-X. Wondering if the Antec High Current Gamer 620W is enough to power my build?

Also later I'll be getting an i5-4690k and Gigabyte Z97-SLI, will it be enough for them too? No overclocking.

Any other suggestions welcome! Would like to go modular this time but budget is around £70 max

Thanks!

 

[Bexx]

Awesome, thanks