It’s nowhere here or there.

I’m not too sure if your z68 mobo supporting i7 3770 (the last pinnacle of 1155 socket), but even doing so it’s not gonna be overwhelming improvement either.

Just grab a “reasonably priced” GTX1050TI or GTX1060 and call it a day, live within what your 2500k can push for; save whatever extra for future. Just FYI nowadays, 2nd hand 1050TI around RM700; 2nd hand 1060 3GB around RM800 and 2nd hand 1060 6GB around RM1k+; all are quite ridiculously high for 6+ years out of warranty legacy cards…

A proper system upgrades will cost several times more than what you budgeted, let’s keep them for other years.

p/s: just noticed that your RAM is kind of limited (and single stick?), consider adding another 8GB stick to it, won’t cost too much extra. Also your SSD is likely quite full already so can consider some slight upgrade there too. 2.5” SATA3 drive will do as your mobo don’t have proper NVME M.2 support.

Pretty much all cards inflated 1.5-2x  it's worth thanks to this GPU scarcity.

1060 which cost only 1k+ when it's launched 6 years ago is worth the same price in year 2021. During the previous mining crash, miner 1060 goes under RM500 each card...

2060 which cost under RM2k back then now pushed more than RM2k.

Now is the worst time to be in need of GPU. I rather invest in a PS or iGPU than buying into these scalping madness (though I cukur this allow me to let go my old 1060 without depreciation for a practically free ownership of past 6 years )

sound like seller scrapped the gpu. i saw alot of them selling off the pc cheap. just have to make sure the warranty is valid when ur pc is as per original state. (without the original gpu)