The list author says: "Computers for gaming are among the most expensive machines for home users. With today’s video games getting more and more demanding of high-spec hardware, you’ll want to get the most powerful system that you can afford. You can never have too much processing power or memory for a gaming computer.
By far the most important aspect of a gaming computer is the graphics card. You can think of the graphics card as a separate computer within the machine itself. It provides its own processor cores and memory which are entirely dedicated to rendering 3D graphics. A dedicated graphics card is an absolute essential for playing anything but the oldest and least demanding games.
Most mid-range graphics cards are capable of handling any current game on mid- to high settings although, if you want to play on a larger screen, you’ll need an even more powerful one. Any machine advertised as a gaming machine should provide at least four gigabytes of RAM, a quad-core or better processor and a graphics card with at a gigabyte or more of memory.
You should also consider the upgradability of your gaming machine. Make sure that you buy something which uses the latest technology and connectivity standards.
If you want to enjoy immersive surround sound of exceptionally high quality, a dedicated sound card is also an essential in any true gaming machine.
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