[rudra]

olx is an awesome place to find nice deals on graphics cards. but graphics cards are also the item which gets least reduction in price there. 1060 or 1070 are awesome for fullhd gaming or 4k edit or tinkering with neutral nets and you can find them on olx at a price ranging from 9000 to 18000 with some warranty for your peace of mind. never buy without checking extensively under load and also make sure you have some warranty. best deals come when people upgrade to top level cards soon after buying a mid-level one and are in a hurry to sell it off. especially people who have lots of easy money somehow; but that's obvious.. just my observation.

1070 has 8gb and will be able to handle mid to moderately high level experiments with big data sets. 1060 has 6gb vram.

the awesome thing about rtx cards is their ai enabled cores and they can be used with 16 bit chunking of data with enough precision. that effectively doubles the capacity of ram compared to normal 32 bit operation. we are talking about mainly matrix multiplication here... huge numbers of such operations.

1650/1660 may come within this range too and will be slightly faster than 10xx.

Google collaboratory or collab is a great free option to practice python and ai coding in python. though it is limited to python cores through jupyter notebooks. but it's awesome and you can use free and free gpu accelerations too. can use gdrive and git ub with it and even use big data sets directly from online..kaggle etc. it just has some limitations but they can be worked with.

finally, no. I'm not insane enough to do 4k online.

thanks