Gt 1030 performance is close to the gtx 750ti and is better then the gtx 750. You change to gt 1030 you will not feel any difference one. You want brand new gpu to upgrade from your gtx 750 with budget of $150. Can only think of rx 570, rx 580, gtx 1060 3gb, gtx 1060 6gb. Check all qoo10, carousell, lazada, shopee for any.
Last time got asus promotion to clear the rx 570 rx 580 cards. RX 570 selling for only $139, rx 580 selling for only $179 around there cannot remember. Out of stock very fast people fast hand fast leg snap up very fast. Can only find in SLS somemore. Some retailer never list on online website very weird.
Now no more already. If you lucky maybe can find the powercolor rx 570 from pc themes for $165. But mostly sold out very fast one. GTX 1060 3gb or 6gb if lucky can find brand new at $179 around there but very hard to find now also. Stock almost gone already. Can only find those expensive 1660 cards only. I manage to buy one gtx 1060 3gb palit one from pc themes at $140 brand new from lazada 9/9 sale with bank voucher + lazada voucher really good deal. Very happy with the card. Huge upgrade from my gt 1030. Gaming has never felt so smooth for me ever since the upgrade.
All this are for brand new cards. For second hand one can find for around $150 more or less, but you have to look out and check how old is the card and got warranty or not.
Last tips. If you want can drop your settings to 720p low, medium or high. Games should still be playable at that settings with the gtx 750.
Someone from the Hoot thread shared that RX580 were going at $180 brand new. You can go check if they are available.
I thought that's the rx 570 @ $169? The screenshot is showing powercolor rx 570.
But if rx 580 at $180 is available it's a steal.