About Gaming Computers
If you enjoy playing games on your PC, you need to choose your spec carefully. You don't want to end up paying for facilities you don't need. Pre-built gaming systems usually have the very highest specs, and consequently the highest prices. Decide how much you can afford and stick to it. You may have to opt for a refurbished or second hand model if money is tight.
Graphics or CPU?
Your ideal PC will largely depend on what you play. If you prefer modern shoot-em-ups, graphics hardware is more important than CPU speed. However, all games require a good graphics card, so you should go for the best that your budget allows for.
Turn based war games do require a faster CPU. Many high end gaming PCs have multiple quad core processors, which is a bit over the top for pure gaming use. If you like turn based games, it's probably best to give equal priority to graphics and CPU.
You'll need at least 8 GB memory if you're running 64 bit version of Windows. Beware that Windows 7 Home Premium can currently only run up to 16 GB Ram. Anything above this will go to waste.
If you're using your PC just for games (as opposed to video editing or backup storage) a solid state drive is a good idea. You'll get much faster boot times, faster gaming loads, lower power use and less noise.
If you can't find the right PC for your budget, and you're not in a hurry, you'll probably be better getting one custom built. That way you won't be paying over the odds for facilities you don't need. You'll also have some budget left for the next release of your favourite game.