i have the almighty HD1000 on my celeron and it works pretty well for a few older games. i've recently been playing gta3/VC and flatout 2. i can have the resolution set to 1080p and framerates have been mostly fine but one thing that bothers me is that movement can be quite twitchy. i'm just wondering if anyone else has noticed this?

the HD4000 on the i5 is pretty good, it can even run battlefield 3 on the lowest settings (not very smooth and barely playable) but its impressive that it can run it at all 