i would love to upgrade my GPU but i do not know if it will bottleneck ? would like to know if i5 760
can support gtx 760 ? and does that card be able to play gta v on maybe low on a 1080p monitor ?
Those components will work fine together and no bottleneck. You should be able to play GTA V @1080P with a mix of low-med settings, maybe lower to hold around 60 FPS.
Yes the GTX 760 will work fine with your i5 CPU. You'll need a good quality 500 watt power supply with two 6-pin PCIe power cables for the GTX760.
You should be able to play GTA V on medium settings.