To enable more slider movement go to C:\Program Files (x86)\MSI Afterburner (for my win7 64bit installation at least) and open MSIAfterburner.CFG in text edit. Third from the bottom is EnableUnofficialOverclocking. Set it to 1 and restart Afterburner.
From what Ive heard, overclocking the Core will be of more benefit than the memory. So I would lower the memory clock a little. For me I could get higher core clocks without raising voltage, by not having the memory that high.
E.g.
900 Core, 1076 mem works on stock voltage (1149)
974 Core, 1031-1076 mem is on 1206
And there is no benefit to having 4xAA as well as MLAA. I'd only use it if he needs AA but is unable to use 2xAA because of performance hits.
From what Ive heard, overclocking the Core will be of more benefit than the memory. So I would lower the memory clock a little. For me I could get higher core clocks without raising voltage, by not having the memory that high.
E.g.
900 Core, 1076 mem works on stock voltage (1149)
974 Core, 1031-1076 mem is on 1206
And there is no benefit to having 4xAA as well as MLAA. I'd only use it if he needs AA but is unable to use 2xAA because of performance hits.