Specs of the 8400gs
I'm trying to play a game and I'm only getting 20~ fps with everything set on low. I know this isn't the best card for gaming, but it's all I have :/
The speeds that are given seem to be consistant with what EVGA lists on their website - I'm guessing the memory speed being 'half' since the ram's DDR/GDDR of some sort. If there's any overclocking in play, its a factory overclock, and that's the speed it was shipped from the factory. Non factory overclocks are controlled by software in most modern video cards anyway, so there's little chance of it being overclocked otherwise.
You should be able to check this (and do overclocking) by installing EVGA precision (or MSI afterburner, same application, different skins, and the latter works on non MSI video cards too). I'd note, while overclocking may be a slight improvement, its unlikely to be a major improvement - you're unlikely to get drastically better frame rates.