Tweaking an Enthusiast build for highest performance.

I've gotten to the point where I would like to get as much performance as I can possibly get from my rig. I primarily do heavy gaming, a lot of time streaming video and gameplay. I by no means NEED to upgrade anything at this point, and I understand that. However, as a hobby and just for kicks, I wanted to see what other suggestions for performance increases I can do. Here is my rig:

PCPartPicker part list:
Price breakdown by merchant:

CPU: Intel Core i7-4770K 3.5GHz Quad-Core Processor ($333.97 @ OutletPC)
CPU Cooler: Noctua NH-D14 65.0 CFM CPU Cooler ($64.99 @ NCIX US)
Motherboard: MSI Z87-G45 Gaming ATX LGA1150 Motherboard ($133.98 @ SuperBiiz)
Memory: Corsair Vengeance 8GB (2 x 4GB) DDR3-1600 Memory ($82.99 @ NCIX US)
Storage: Seagate 600 Series 240GB 2.5" Solid State Drive ($129.99 @ TigerDirect)
Video Card: EVGA GeForce GTX 780 Ti 3GB Superclocked ACX Video Card (2-Way SLI) ($679.99 @ NCIX US)
Video Card: Zotac AMP! Edition 780 Ti 3GB Overclocked Video Card (2-Way SLI) ($679.99 @ NCIX US)
Case: Cooler Master HAF 922 (Black) ATX Mid Tower Case ($79.99 @ Newegg)
Power Supply: EVGA SuperNOVA 1000G2 1000W 80+ Gold Certified Fully-Modular ATX Power Supply ($149.99 @ NCIX US)
Operating System: Microsoft Windows 8 (OEM) (64-bit) ($97.98 @ OutletPC)
Wireless Network Adapter: Asus PCE-AC68 802.11a/b/g/n/ac PCI-Express x1 Wi-Fi Adapter ($97.99 @ Amazon)

I currently have major issues getting a stable overclock for my 4770k, especially when I enable the X.M.P profile for my ram to go from 1333 to 1600. Temperatures are not an issue at all. I don't even reach 80 degrees at 4.4, but it crashes soon after. I don't want to raise the voltage enough to permanently damage my CPU, and I've heard that 1.3 is the sweet spot for that. However, even at 1.3, I can't get stable at 4.2. What can I do? Also, If I upgrade my ram to a G. Skill Trident X 2400mhz, will I get an even lower ceiling for my CPU's overclock?

Delidding is another option, but I don't feel confident in my ability to do so, and I don't even know if it would make overclocks any more stable. Again, heat isn't the problem with my chip. Also, I would have to invest like 30 bucks in a vice anyways.

My Motherboard has some issues. I want to make sure that I am running my pci-e lanes at 8x/8x for my Graphics cards, but I also use my wireless network adapter in the bottom most pci-e lane. Does that mean my graphics cards are running in 8x/4x/4x? If so, how much of a performance loss would I be losing with sli 780tis?

Graphics card wise, I'm not too disappointed with my overclock ceiling, but I am getting artifacts at +120 Clock/+200 Mem. Should I stick with about +100/+190 Mem and be happy with it? Or, do people usually get higher overclocks than that? I figure with them already being Factory overclocked, the ceiling would be lower. Also, should I be keeping both cards in sync because they are different brands? Or does that not factor into the equation anymore?

Other than that, is there any part that would lead to any type of decently cost effective performance increase from where I am at the moment?

Thanks for any help you can provide!
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  1. Best answer
    I'm not sure why it crashed when XMP is enabled but if I were you I would disable XMP and have a higher CPU overclock. The difference between 1333 and 1600 is minimal. I would also lower the overclock on your GPUs if they're artifacting and keep them in sync. It doesn't matter that they're different brands. Very nice build! :-)
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