I just Googled "rs to usd" and found out that "rs" meant Indian Rupees, so I will go off that. I could be wrong, so please feel free to correct me if need be. according to Google, 4000 rs is equal to ~$70. at that price the only card that you would be able to buy is the that is vaguely worth the money is the AMD R7 240 for around $60-$70, or 3514.12-4099.80 rs. I don't know what deals or anything that are going on in India (I assume that's we're you are, because of the Indian Rupees), but that's what you could get in the US. Feel free to correct me on the currency or location, and I will update my answer according to that.