Your specifications are a bit higher than the recommended specifications, minus the ram. Just as Razer said, you'll probably sit around medium to high, probably around 45-50 fps in most areas, maybe a bit lower. But of course, there's no definitive way of knowing until it's actually released. It could end up being like Dying Light for the first few weeks, and play absolutely horridly, and though your specs are fine. I seriously doubt that'll happen though, Rockstar knows exactly what they're doing with this masterpiece.