Is my PSU Good enough???

[F1REF1GHTER]

I have a Rx 470 4GB....I have tried around 4-5 PSU calculators online ...all says I need a power supply around 300w.....so is ANTEC SMPS BP450PS - 450 WATT PSU enough for me (does it have a 8 pin connector required by my GPU) OR should I buy
A Corsair VS Series VS450 - 450 Watt SMPS ???

 

[n0ns3ns3]

both your choices are very basic. would be better to get a unit with better quality.
Something like corsair CX450M. Even Antec VP450 would be much better.
As for your question, it does have all required connectors.