Guide me to get a new psu

[ashwinmsunder]

Processor - intel core i7-4770
Graphics - zotac gt 630 4gb ddr3
PSU - Antec 300W (200v-240v)
RAM - 16gb (2 x 8gb)

I have a msi r7850 2 gd5 graphic card now, and planning to replace it for my existing zotac gt 630 4gb ddr3. I understand that I must get a suitable psu for my msi r7850. I hear i should go for a 500watt psu.

I would like some guidance on this,
1. Is this upgrade reasonable?
2. Am i going to see any difference in performance between these two graphics cards?
3. If yes, then is the 500w psu upgrade a valid move?
4. If yes for the 500w upgrade, which one should I choose between the cooler master and the corsair?

Note: I live in India. My system rests for about 6-7 hours everyday. the rest of the day it is almost in non-stop usage.
apart from the regular browsing, I do a ton of Photoshop work and also into gaming. I know it is not any massive upgrade that I am doing, I am on very tight budgets so please help me around with this.

 

[dark_globe]

there is a huge gap between gt 630 and amd 7850 so you will see a big improvement
and the upgrade is definitely worth it.
http://www.game-debate.com/gpu/index.php?gid=676&gid2=588&compare=radeon-hd-7850-vs-geforce-gt-630

that being said hd 7850 is an old video card itself and it is not that good for 1080p gaming anymore
but it can handle older games at med/high and new games at low or even medium settings (if they are less demanding) .

your processor would be able to support much more powerful video card
but if you are on a tight budget and you already have radeon 7850 it will do .

as for the power supply :
cheap cooler master psus are not very good ,
and you should also avoid cheap VS corsair units .

you can get good old seasonic S12II 520w or new corsair CX450M (black and white paint)

 

[ashwinmsunder]

Hey thanks.

The seasonic S12II 520w and the corsair CX450M are still way beyond my current budget crunch.

I was just looking at this *Cooler Master MWE 500 Watt 80 Plus Bronze certified power supply* which is under my preferred pricing.
I know you just told me cheap cooler masters aren't any good. Could you tell me if this particular one is any good?
If I can keep this as an option at least?

 

[dark_globe]

it is a mediocre entry level PSU
worse compared to S12II or CXM
but if you can´t find anything better in your price range
it is certainly more reliable than generic "tier 5" units .
plus your system will not put high pressure on it since it will consume roughly 250w of power
which is ideal scenario for 500-550w power supply .

here is the only review i could find on it: https://tech4gamers.com/cooler-master-mwe-500-mpw-5002-acabw-review/