For $1,500 you could almost build a high-end Watercooled system, so you have lots of room to work with.
First up, lets start off with a 1366 socket CPU and motherboard. This ensures forward compatibility with the future:
i7 920 (D0 Stepping)
EVGA X58
The i9 CPU's (6 cores, 12 threads) come out in 2~ years or something, and they will be socket 1366 and compatible with this motherboard.
As for GPU, I would not buy one until ATI's 5870's come out in mid September, because all existing GPU's from ATI & nVidia will drop in price at that point, saving you a good chunk of change. So if you want a 4890 or GTX 285, they'll both probably nose-dive $50 at that time, or at least have some good mail-in rebates/combo-deals.
All that is left is some RAM. Any DDR3 RAM is good. Timings/Bandwidth has very little effect on gaming (less than 1%), and a mediocre effect on benchmarking (5%). Some DDR3 1333 CL7 or CL8 should be good, buy what ever RAM is cheapest at that time, but make sure it is a triple-core kit. Corsair has the highest quality RAM, but there are plenty of other companies out there with the same quality, just not as many years on their track record (like OCZ, G-Skill, or Mushkin). Your timings are how many clock-cycles have to pass before the RAM can send the requested memory. The only timing that has any effect on gaming is your "CAS" (or "CL") timing, which is the first timing in your numbers (
8-8-8-24 would be CAS 8 or CL8). The easy math behind it is:
(2000 / AA) * BB = How many nanoseconds it will take for your RAM to respond
AA = RAM Speed in DDR Format
BB = CAS or CL Amount
DDR 1333 has a 1333MHz effective rate, and at 8-8-8-24 you have a CAS or CL of 8 so:
(2000 / 1333) * 8 = 12ns Delay
12ns RAM is cheapest, somewhat old.
9ns RAM is middle of the line, somewhat newer
7ns is top-end memory
Your Timing delay has more of an effect on your FPS than total memory bandwidth. So low speed RAM but with decent timings will benefit you more than high speed RAM with mediocre timings. Some people are now buying 1866 RAM with CL9 thinking it'll be better than slower 1333 or 1600 stuff, but it really isn't. Game's don't need bandwidth, they need faster random access.
Quote:
Originally Posted by Burst Cancel
i7 is generally a poor value for gaming; its primary strength is in encoding, rendering, HPC, etc. For games, you are much better off getting a cheaper platform (AM2+/AM3 or heck, even LGA775) and investing the savings in a better video card and peripherals (monitor, mouse, keyboard, etc.). People often spend a lot of time worrying about the hardware that goes into the case, but for entertainment applications, the reality is that how you interface with the machine is just as important than the machine itself.
Trying to futureproof yourself is a lost cause. Within a year, pretty much everything you buy now will be cheaper/obsolete. The most reusable components are the ones that have little bearing on raw performance: case, PSU, optical drive, cooling, and sound card.
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What BC is saying is true, futureproofing yourself is somewhat of a lost cause. It really only works if you buy a good motherboard with a newer chipset, that way you have a plausible upgrade path for RAM, CPU, and GPU in the future. Spending $1500 on a gaming rig in this day and age is quite a lot, as I said, you're a few hundred away from a high-end Watercooled rig. You might want to buy a top-end AM3 motherboard, drop a Triple-Core in there (AMD 720), and save most of your cash for a 5870X2 and huge monitor (25" or higher, 2048x1152 or higher).