[citation][nom]elric42[/nom]k let start with the ddr 3 1333 k if the apudoes not support ddr 3 1600 u can make it by do so if the bios suports it underclock the apu then raise the front bus to where it is 1600 that would raise the gpu clocks to just under or a little over there stock speed but like i sais bios has to suppor the under clocking of the apu and u have to set the ram voltage to 1.5.I know this works i have done this with my wifes laptop it running just 22 ghz faster then stock but ram is running at 1600 and u dont have to raise the front bus a hole lot to get it to 1600 so there is not that much of a heat differents.One other thing i like to say is Trinity gpu side is just find if u get the desktop apu part then the Trinity gpu would bitch slap intels 4000 hd back to the stone ages its like one reader said its the speed of the apu that make the differents in how fast the gpu runs so if u get a laptop that unlocks the apu then u could kill intels 4000 hands down.[/citation]
For what you suggested to work, a laptop's BIOS would need to support both multiplier underclocking of the GPU and CPU and BLCK overclocking and those are two fairly unlikely situations in my experience. A laptop would also need to be able let the RAM not be automatically underclocked when the BLCK is increased. Also, there is no way that your wife's laptop is running anything at 22GHz, let alone over 22GHz, so I have to assume that you meant 22MHz, although you don't specify what part of the laptop is running 22MHz over stock. Next, I have no idea what you mean by the APU part of anything. An APU is just a brand name for AMD's CPUs with powerful IGPs (relative to the CPU), such as Llano, Brazos, and Trinity. It's not a part of Trinity or Llano, it's the name for the entire chip.
You're correct in that if the BIOS allows it, you're workaround for getting 1600MHz memory on a non-MX Llano laptop should work. However, the rest of your post simply does not make sense to me. The APU, IE Accelerated Processing Unit, is just the name for AMD's processors that have more or less equal parts of the die dedicated to GPU hardware as is dedicated to CPU hardware. There is no part of them that is an APU part because the whole chip is an APU. I can say that for desktops, Trinity would truly kill HD 4000 and that even on laptops, if you either plug the laptop in or set it to a high performance profile, it would probably also kill HD 4000, although the difference probably still wouldn't be as great as the difference on the desktop market.