Here are three builds that fall close to your budget using the three CPU's you list. But questions are:
What are you using this system for? Are you sure you need an i7? Why do you need an 800W PSU (that is pretty big)?
Do you need the following
- Monitor
- keyboard
- mouse
- Wifi connection (card)
- speaker
- Operating System (Windows)
- anything else you can think of
i7 4790k Build
PCPartPicker part list:
http://pcpartpicker.com/p/mjtzqs
Price breakdown by merchant: http://pcpartpicker.com/p/mjtzqs/by_merchant/
CPU: Intel Core i7-4790K 4.0GHz Quad-Core Processor ($329.99 @ SuperBiiz)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($24.88 @ OutletPC)
Motherboard: ASRock Z97 EXTREME6 ATX LGA1150 Motherboard ($122.98 @ Newegg)
Memory: G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1600 Memory ($47.99 @ Newegg)
Storage: Samsung 850 EVO-Series 250GB 2.5" Solid State Drive ($87.89 @ OutletPC)
Storage: Seagate 1TB 3.5" 7200RPM Hybrid Internal Hard Drive ($69.89 @ OutletPC)
Video Card: MSI GeForce GTX 970 4GB Twin Frozr V Video Card ($329.99 @ NCIX US)
Case: Cooler Master Storm Enforcer ATX Mid Tower Case ($87.99 @ NCIX US)
Power Supply: EVGA SuperNOVA G2 650W 80+ Gold Certified Fully-Modular ATX Power Supply ($84.98 @ Newegg)
Optical Drive: Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer ($15.99 @ Newegg)
Operating System: Microsoft Windows 10 Home OEM (64-bit) ($87.95 @ OutletPC)
Total: $1290.52
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-01-22 11:03 EST-0500
i7 6700 Build
PCPartPicker part list:
http://pcpartpicker.com/p/4dKvpg
Price breakdown by merchant: http://pcpartpicker.com/p/4dKvpg/by_merchant/
CPU: Intel Core i7-6700K 4.0GHz Quad-Core Processor ($399.99 @ NCIX US)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($24.88 @ OutletPC)
Motherboard: Asus Z170-A ATX LGA1151 Motherboard ($153.99 @ SuperBiiz)
Memory: Patriot Viper 4 8GB (2 x 4GB) DDR4-2666 Memory ($47.99 @ Amazon)
Storage: Samsung 850 EVO-Series 250GB 2.5" Solid State Drive ($87.89 @ OutletPC)
Storage: Seagate 1TB 3.5" 7200RPM Hybrid Internal Hard Drive ($69.89 @ OutletPC)
Video Card: MSI GeForce GTX 970 4GB Twin Frozr V Video Card ($329.99 @ NCIX US)
Case: Cooler Master Storm Enforcer ATX Mid Tower Case ($87.99 @ NCIX US)
Power Supply: EVGA SuperNOVA G2 650W 80+ Gold Certified Fully-Modular ATX Power Supply ($84.98 @ Newegg)
Optical Drive: Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer ($15.99 @ Newegg)
Operating System: Microsoft Windows 10 Home OEM (64-bit) ($87.95 @ OutletPC)
Total: $1391.53
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-01-22 10:49 EST-0500
i7 5820k Build
PCPartPicker part list:
http://pcpartpicker.com/p/JpfQXL
Price breakdown by merchant: http://pcpartpicker.com/p/JpfQXL/by_merchant/
CPU: Intel Core i7-5820K 3.3GHz 6-Core Processor ($374.99 @ SuperBiiz)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($24.88 @ OutletPC)
Motherboard: ASRock X99 Extreme4 ATX LGA2011-3 Motherboard ($184.98 @ Newegg)
Memory: Patriot Viper 4 8GB (2 x 4GB) DDR4-2666 Memory ($47.99 @ Amazon)
Storage: Samsung 850 EVO-Series 250GB 2.5" Solid State Drive ($87.89 @ OutletPC)
Storage: Seagate 1TB 3.5" 7200RPM Hybrid Internal Hard Drive ($69.89 @ OutletPC)
Video Card: MSI GeForce GTX 970 4GB Twin Frozr V Video Card ($329.99 @ NCIX US)
Case: Cooler Master Storm Enforcer ATX Mid Tower Case ($87.99 @ NCIX US)
Power Supply: EVGA SuperNOVA G2 650W 80+ Gold Certified Fully-Modular ATX Power Supply ($84.98 @ Newegg)
Optical Drive: Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer ($15.99 @ Newegg)
Operating System: Microsoft Windows 10 Home OEM (64-bit) ($87.95 @ OutletPC)
Total: $1397.52
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-01-22 10:51 EST-0500