You may wish to PRINT/COPY this. I gave a few highlights.
*Intel is the only good choice for a CPU in a gaming PC.
AMD has dropped the ball and can't compete in that market at all. Anyone who recommends an AMD CPU for a gamer doesn't know what they're talking about. If unsure, look up gaming benchmarks for the i5-3570K and keep in mind it's also much cooler/quieter than any AMD equivalent.
Currently the motherboard and CPU of choice is:
a) 1155 socket, Z77 motherboard, and
b) i5-3570K Intel CPU
**Some tips:
1) 8GB DDR3 RAM 1600MHz (or higher frequency)
- this won't change. 8GB is ideal. More is a waste for gamers. Don't pay more for anything fancy. (G.Skill is one of the good brands)
2) CPU
- "K" means overclockable for Intel. Get this even if not used
- beyond an i5-3570K there's little value to gamers
- so $200 to $300 is the budget for a high-end gamer
3) CPU HSF:
- get an after-market CPU heatsink + fan. Several choices you can research.
- water cooling is another option but pump noise and other issues can make it hard to recommend
4) Motherboard:
- high-end gamer should spend about $100 to $250 depending on features
- USB3 rear, and USB3 front
- Realtek sound OR better Creative type chip?
- Asrock, Gigabyte, Asus, MSI (Asrock my current favourite for value)
- Virtu MVP (interesting feature. Not quite ready. worth reading about. Can disable.)
5) Case:
- spend $50 to $150
- water cooling MAY need special case (like Corsair 500R + H100 cooler)
- cable management
- extra fans
- front USB3 etc.
6) Graphics:
- multiple cards (SLI, Crossfire) create micro-stutter
- micro-stutter can be minimized with THREE CARDS but not gone
- single GTX680 can run MOST games at 100% quality (single monitor 1920x1080)
- NVidia's PhysX is nice eye candy for some games but can cause huge FPS hit (even with a GTX680) but don't have to turn PhysX on.
- NVidia has the nod IMO (driver support, TXAA and Unreal 4 support, PhysX, Adaptive VSYNC)
*Graphics is usually the bottleneck for gamers. I usually recommend one card only and the best card (arguably the GTX680 presently).
**ALWAYS spend a little more money (not much) and do research for a card that uses non-reference cooling. You should READ THIS to start:
http://www.hardwarecanucks.com/forum/hardware-canucks-reviews/55064-asus-gtx-680-directcu-ii-top-review.html
7) OS:
Windows 7 Premium 64-bit OEM ($100) or Windows 8 equivalent
- *MUST BE 64-bit!!
8) PSU:
- always get a quality brand (Corsair, Antec, several others)
- spend a little time researching
- spend $80 to $150 (look for sales, i.e. NCIX.com )
- 550Watts CAN be enough but may be noisy (noise ramps up after 50% load)
- recommend 750W or 850W for below build
9) accessories
- XBox 360 wired gaming controller (wireless receiver prone to failure, other similar controllers have issues. trust me.)
- gaming mouse (Logitech MX518 or similar. very few good mice. No good wireless gaming mice)
- Keyboard (lots of choices depending on wants/needs)
- BluRay burner? (don't bother unless you know you'll read or burn BluRays). Otherwise get a $30 LG/Liteon or similar DVD burner
10) MONITOR?
- 27", 2560x1440 monitors are currently expensive (i.e. Dell U2711). May wish to wait for prices to come down
- recommend 22" 1920x1080 Samsung or similar monitor
- $250 is what I'd spend on your budget
- don't get speakers in the monitor
- spend time researching (can be confusing)
- anti-gloss screen recommended (glossy screen for basements ONLY)
11) SOUND:
- onboard Realtek is "okay" but not as good as a quality sound card when paired with good speakers (I recently took out my sound card and was truly shocked at how poor movies and games sounded with the Realtek chip. I'm "spoiled" by my present sound quality).
- strongly recommend this combo:
a) Auzentech X-Fi Forte sound card, and
b) M-Audio AV40 stereo speakers
- don't buy a 2.1 system unless the POWER is controlled from the speaker NOT the
subwoofer
- Headphones require a lot of research (Note the Auzentech X-Fi Forte can output to BOTH a stereo AND a stereo or 5.1 system at the same time. Most audio cards can't do this).
SUMMARY:
- building a PC is about balance
- spending too much on a CPU is a waste of money (Intel for gamers)
(i5-3570K CPU will likely be replaced by a similar CPU in several months as the recommended "gaming" CPU)
- 8GB of DDR3 RAM is optimal for gamers
- get a single, high-end graphics card
- 1155/Z77 motherboard (Ivy Bridge) currently (replaced by Haswell in 2013)
FINAL, EXAMPLE BUILD:
- Intel i5-3570K
- Asus GTX680 ("TOP" model)
- Asrock Z77 Pro 4 motherboard
- 8GB DDR3 1600MHz G. Skill RAM
- Antec three hundred (are better cases)
- Corsair TX750 V2 (on sale for $90)
- Windows 7 Premium 64-bit OEM