On June 2nd Intel's Devil's Canyon is being released. It will be a 5GHz 4770K with a number of 4790K. That would be an excellent time. Do not wait for the September release of the Haswell E. It would be useless. The DDR4 memory is worthless. The 4770K processors, with only two RAM channels are plenty fast in the RAM department. the 2011 series processors have four channels so they have twice the RAM speed, yet they are not any quicker except for heavily threaded non gaming apps.
With an unlimited budget, but not wasting money, I'd get this:
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CPU: Intel Core i7-4770K 3.5GHz Quad-Core Processor ($309.99 @ NCIX US)
Of course replace this with the 4790K. It will cost about $350, but will give you the best speed per core which is what games want. The hyperthreading is just starting to help in a couple games now, more in the future, might as well get this and not the 4690K.
CPU Cooler: Noctua NH-C14 CPU Cooler ($60.80 @ NCIX US)
The best and quietest cooler out their. Only water coolers that are four times noisier run cooler. Will cool the RAM and motherboard too.
Motherboard: Asus MAXIMUS VII HERO ATX LGA1150 Motherboard ($218.99 @ SuperBiiz)
The best overclocking motherboard there is for the Devil's Canyon processors.
Memory: Mushkin Essentials 16GB (4 x 4GB) DDR3-1866 Memory ($164.99 @ Newegg)
Get low profile ram so it will fit easily under the cooler. The Noctua cooler will cool this ram so you don't need heat spreaders. Plenty fast and you can probably overclock it but that will result in minimal improvements.
Storage: Samsung 840 EVO 1TB 2.5" Solid State Disk ($458.99 @ Best Buy)
Huge SSD will hold most everything and be blazing fast and will last for a decade plus.
Storage: Western Digital Caviar Black 2TB 3.5" 7200RPM Internal Hard Drive ($148.98 @ OutletPC)
For storing music and movies.
Video Card: Sapphire Radeon R9 290X 4GB Vapor-X Video Card (2-Way CrossFire) ($659.99 @ Amazon)
Video Card: Sapphire Radeon R9 290X 4GB Vapor-X Video Card (2-Way CrossFire) ($659.99 @ Amazon)
With a high resolution screen 3GB won't be enough. These cards have an amazing cooling system that will keep the GPU in the seventies under maximum stress and be silent too.
Case: Rosewill BLACKHAWK-ULTRA ATX Full Tower Case ($189.99 @ Amazon)
The biggest and best case to keep those graphics cards cool. A huge fan on the side blows cool air right on them.
Power Supply: Corsair AX1500i 1500W 80+ Titanium Certified Fully-Modular ATX Power Supply ($449.99 @ NCIX US)
Okay, perhaps a bit indulgent, but really, how can you turn down Titanium effeciency? When operating normally, this thing will be at its most efficient and will be several percent better than your typical 1000 to 1200W platinum supplies. That several percent equals 30W which is a lot of heat to dump into your case.
Operating System: Microsoft Windows 7 Home Premium SP1 (OEM) (64-bit) ($89.98 @ OutletPC)
Windows 8.1 is an insult. Windows 9 is coming out next year. But for now, Windows 7 is the best operating system Microsoft has ever put out.
Monitor: Dell U3014 60Hz 30.0" Monitor ($1049.99 @ Adorama)
Total: $4462.67
I have one of these at home and two at work. So good they hurt. The ultra high resolution 4K displays are very slighty better but bring today's graphic cards to their knees. Your two R9 290X's will drive this display beyond 60 FPS on any game with the eye candy.
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-05-27 01:38 EDT-0400)