TheGoolian

On the 10-110% load tests.
 

well, in real life, there are other factors within the case which can be noisy. Case Fans, CPU cooler fans, HDD, graphics card : )  That's why I usually think, one can get away with a louder PSU, without noticing too much of annoying noise.

Download the report and scroll down to the 10-110% load tests
 

You seem to have a loose definition of "a tad". From Cybenetics, the TX550M spins its fan at 1510 RPM at 55W, 1660 RPM at 220W, and 1840 RPM at 385W until full load. Meanwhile, the PP10 500W spins its fan at 568 RPM from idle until 300W, and 1280 RPM at full load. This is at 40C ambient, however it is a large difference either way.

Cybenetics.
https://www.cybenetics.com/index.php?option=power-supplies
 
The PP11 is just a minor revision, so the fan curve should be fairly similar

I would still get the TXm Corsair. Better topology than the PP11, and better quality components, longer warranty time. The PP11 is a tad quieter though.

Out of those 3, the Pure Power 600 would be the quietest. Ignore the efficiency, it won't make a big difference, just get a good PSU and ignore the efficiency. I would suggest the Formula 450W, RM550x or Leadex III 650W over any of those. The Formula is well priced, and the RMx and Leadex are probably the quietest PSUs within your budget. You can find test results on Cybenetics

After looking at a couple of builds around here, mine is by any means anything fancy or out of the ordinary, but it's mine, I built it with my own money and sweat and I couldn't be more proud of it (although there are things I would change).
 
Coming from a country that's relatively poor (look under my profile picture and you'll get it :D) and salaries being relatively low, I could never afford to just toss out money on the parts I would've dreamed off, so I settled for something decent, I waited until the times were right and about two years ago I have started working on a new rig because my old one couldn't keep up by any means. I started off with the CPU and Motherboard, then waiting ensued and after a couple of months, I purchased the PSU, RAM and a generic cheap case. Saving the GPU, HDD + SSD and CPU cooler from my old build, I was ready to go but I always felt I could improve in some areas. Given these things, I managed to get my hands on a new SSD + HDD + CPU cooler around last November and a better GPU around last December (my Christmas gift to myself :P). Around January I also managed to go for a better case and this is when I started putting what would be my current rig to my building abilities. And so, without further introduction, this is the build I have managed to... well, build: 
CPU: Intel i5-9600K OC'ed to 4.6 GHz CPU Cooler: Be quiet! Dark Rock 4 Motherboard: Gigabyte Z390 UD RAM: 2 x 8GB HyperX Fury Black @3200 MHz GPU: Palit Windforce GeForce GTX 1080 Ti Storage: Samsung 860 EVO SSD 500 GB + WD Blue 7200 RPM HDD 1 TB PSU: nJoy Woden 650W 80+ Gold Case: Armis AR5X TG RGB Coolers: Sigma HP Corona 6 x 120mm(5 intake + 1 exhaust) + Sigma HP Corona 2 x 140mm (2 exhaust) All things considered, what I would change is the controller to put all of my fans into (the current one only supports 6 so I can't light up the fans at the bottom of the case), the PSU (the ketchup and mustard cables truly make for an unpleasant sight at a closer look) and that's about it if I'm being honest. Overall, I'm pretty satisfied with what I have.
 
Editor's note: Please do overlook the camera quality, boxes in the background, poor cable management in the back (in my defense, I did try to make it look good but the stickers of the tunnels I would put my cables through didn't hold) and whatever else that has nothing to do with the case and its contents.

Exactly what I was looking for and more. Will take the 1660 Super over the RX 590 and keep my original power supply for now.
And as I come into more money later will upgrade my PSU with something from the TX line / use the tier list @Oswin provided. ?

I'd go for a TX550M from Corsair, but a CX550 would be just fine too and is a little more inexpensive.
Also, unless you found some crazy good deal on that RX 590 and you're getting it for really cheap, I'd suggest considering a GTX 1660 Super, as it consumes about 100W less and is also a good bit faster, for about the same price. 

500W is plenty and even has some headroom for OC. But dont do crazy LN2 lol. Check or PSU recommendations list and get a B or up from there unit that you can acquire for a nice price and fits what you like ascetics wise.
 
Also about the build: Get a MSI B450 A Pro Max. Cheaper than the tomahawk but only with a bit less bling and aesthetic stuf mounted to the board. Features and perf are exactly the same. Some say that the A Pro Max VRM cooler is allso a LIIIIITLE bit better

you should be fine with 500 watts as long as you are not doing any crazy overclocking 
 
here is a tier list if you need it

Exactly what I was looking for and more. Will take the 1660 Super over the RX 590 and keep my original power supply for now.
And as I come into more money later will upgrade my PSU with something from the TX line / use the tier list @Oswin provided. ?

Exactly what I was looking for and more. Will take the 1660 Super over the RX 590 and keep my original power supply for now.
And as I come into more money later will upgrade my PSU with something from the TX line / use the tier list @Oswin provided. ?

Just to clarify I only have one PSU - the EVGA 500B 500W 80+ Bronze.