The minimum specs listed on the wiki under FAQ were based on the piss poor laptop I had at the time. None 1080p games ran fine, but 1080p games such as Chains of Satinav (satinavs ketten) had lag issues & I would have to wait at least 20 seconds to over a minute for each scene to fully load before it would play smoothly.
It's possible that the minimum has increased with the new VS editor & updates to the player, but the minimum you should really be aiming at with a 1080p game is probably dual core, with 2GB ram & about 512mb of dedicated VRAM, though 1GB would be better - a system along those lines should run any VS game unless it's 1080p & has a lot of large animations running at the same time.
To better gauge what your minimum & recommended target specs are you would need to run some tests by providing your game to different people with different pc/laptop builds to see how it runs on their machines.