I'm saving up for a new laptop/pc, but I know next to nothing about computers. I want something that will run my games smoothly, but be within my price range (less than NZ$2100). So what is a rough outline of a good rig? What sort of processor am I looking for, how much RAM, and what sort of Hard drive do I want?
Do you need a pre-assembled PC? ...or can you build your own?
What is needed other than the PC tower? Monitor, speakers, mouse, keyboard, Windows OS disc? All these can affect the price.
CPU: For a new system right now, try to get a SandyBridge chip. The Core i5 2500K is a monster processor with great overclocking potential.
RAM: 4GB (2X2GB) or 8GB (2X4GB) G Skill Ripjaws.....at least DDR3 1333. Corsair, Crucial, and Kingston are typically decent too.
HDD: If not SSD, then the 1TB Samsung F3, WD Caviar Black, or Hitachi 7K1000.C are great drives.
Can help you out with a build if you wish. Just answer the questions above.
The only good advice I can give is get a desktop for games. Laptops become obselete quite fast. A desktop is easy to upgrade and over time, it's cheaper. I've had the same desktop for more than 6 years now, but the only original pieces I have are the hard drive, dvd drives/burner and... huh, the case. A multi-core cpu is the now and future, but you also have to consider the gHz, 2.5 and up. Some old games (like OB and Morrowind) don't deal well with multicore, so if you have one or many cores set to 3 gHz, you'll be fine. What else? If you plan on building it, or getting it built for you, stick with one company, that is, Nvidia graphic card/Intel cpu or ATI/AMD.
For a 32bit system, having more than 4Gb of ram is a waste. For a 64bit, more is nice... but most programs don't use the 64 advantages as of now, they will run like a 32 on your 64bit system. In computers, the bigger the number (of whatever, like gHz, Gb), the better. That is, except for refresh rate of monitors, speed of the hard drive read/write, latency of ram...
p.s. if I am way over my head, here, please tell me, those are the simple things I gathered over time and I might have understood them wrongly.
FYI, too many generalizations here. Sure, more GHz is beneficial for CPUs, but it's way more about the technology in the chip. Frequency of one CPU is only comparable to other CPUs that are within the same technology. A Pentium 4 @ 2.5GHZ gets destroyed by any Core 2 chip...even the 1.6GHz ones. It's not a apples to apples comparison. There are certainly CPUs under 2.5GHz that would run games very well.
The "stick with one company" suggestion doesn't do much but limit oneself. I use a Intel CPU with a AMD video card just fine....many do. There's nothing wrong with mixing an AMD CPU with a Nvidia card...and many do this as well. You should just buy the best performance for your money.
And it's not always the bigger the number the better. This is especially true among video cards and CPUs, as I've indicated above with the higher frequency Pentium 4 getting pounded by most modern CPUs that have a lower frequency. With video cards, the common misconception is that the higher the model number, the better. That's not always true. A GTX 560 is not faster than a GTX 480....nor would a Radeon 5450 be faster than a Radeon 4890....again it's all about the technology architecture and specs.