Nope I am up in JHB bud.
For gaming...not really no, the only game I know of that likes faster ram is Battlefield 4, where I gained about 10fps by ocing the memory. Memory clocking is more for benchmarking, you can score some serious points by ocing ram and its actually quite easy.
As for CPU overclocking, also makes very little difference in games, mainly for benchmarking.
GPU overclocking combined with CPU overclocking can net you some awesome gaming performance increases.
Edit: The only thing I've ever lost due to overclocking was a weak Kingston memory module.
Its actually hard to mess up when overclocking if you just do a little bit of research and keeping your voltage and temps in check, you'll be fine.




