[SOLVED] what psu wattage is recommended ?

May 31, 2020
Hi, I'm fairly new to building and have been upgrading my pc for over a year now.
I have recently purchased a new GPU GTX 1660 super ddr6 by MSI upgrading from my GTX 1050 TI LP by msi. which led to me needing to upgrade my PSU as I need a 8 pin pcie connector to power the new GPU as my older psu fps 350W does not have one.

My current build at the moment is:
Asrock Phantom gaming 4 B365M Motherboard
Intel i5 9400f CPU with Corsair AiO H100I cooler
2x 8gb dual channel RAM
128gb M.2 SSD
currently using GTX 1050 TI but switching to GTX1660 Super once I figure out what PSU to get.

Just wanted to know what wattage is required to power the build. I was looking at Corsair TX550M 80 plus Gold.
Is the wattage enough? or should I go for 600 plus?
I have a budget of £70 to spend on new psu.

Any suggestions will be much appreciated!!
Thanks in advance