Can I play gta v rp on gtx 660 gpu, xeon e3 1220 processor and 4gb ram
Short answer is not very well. Don’t expect to run it on anything higher then medium-low kind of settings. But it really depends on what you find as acceptable framerates. But yes, it should run on low settings without too many issues.
If you do then you’ll for sure need to overclock your cpu and gpu which could be dangerous for your computer. You’ll also need to optimise your pc to the most optimal state. If you’re on Windows 10 you can try to use the “Game Mode” feature but judging from your specs I don’t guess that you’re on Windows 10.
The gpu will have issues keeping up. The lowest GPU I’ve ever been able to play on is a GTX750. I highly recomend no less than a GTX1050 though tbh.
If you can enable all processors through windows the CPU might be able to handle the pressure but it may not still.
The biggest hurdle is the ram. Some servers have a lot of code going out so you will likely find yourself crashing alot due to memory dumps. Granted that most servers run lua scripts which are very lightweight on memory but with other things such as ymaps and streamed vehicles you may quickly find yourself sol.