Graphic Cards Need Help With My Old Machine

rupaidasofficial

Apprentice
Hello Guys,
I need some help with my old pc which is Intel Core i5-4590s, 12 GB RAM, 450 Watt Deepcool 80+ Bronze Psu.
My concern is which GPU will best for this system ? (Budget Max 9K)
Thank You Guys.
 

Attachments

If you wanna go second hand, something like the 1060 or rx580 would be the max you could go without serious bottleneck.