Looking for advice on build

[ToDarkness]

Advice on this build looking to play at 1920 x 1080. Thanks for any help or advice

PCPartPicker part list: http://pcpartpicker.com/p/IAjm
Price breakdown by merchant: http://pcpartpicker.com/p/IAjm/by_merchant/
Benchmarks: http://pcpartpicker.com/p/IAjm/benchmarks/

CPU: Intel Core i5-3570K 3.4GHz Quad-Core Processor ($189.99 @ Microcenter)
CPU Cooler: Corsair H100i 77.0 CFM Liquid CPU Cooler ($101.99 @ Newegg)
Motherboard: Gigabyte GA-Z77X-UD4H ATX LGA1155 Motherboard ($164.99 @ Amazon)
Memory: G.Skill Ripjaws Series 8GB (2 x 4GB) DDR3-1600 Memory ($62.99 @ Newegg)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($72.98 @ Outlet PC)
Storage: Samsung 840 Series 120GB 2.5" Solid State Disk ($92.99 @ Adorama)
Video Card: PowerColor Radeon HD 7870 XT 2GB Video Card (2-Way CrossFire) ($239.99 @ Newegg)
Video Card: PowerColor Radeon HD 7870 XT 2GB Video Card (2-Way CrossFire) ($239.99 @ Newegg)
Wired Network Adapter: Intel EXPI9301CTBLK 10/100/1000 Mbps PCI-Express x1 Network Adapter ($29.99 @ Newegg)
Case: NZXT Switch 810 (White) ATX Full Tower Case ($168.98 @ SuperBiiz)
Power Supply: SeaSonic X Series 850W 80 PLUS Gold Certified ATX12V / EPS12V Power Supply ($149.99 @ Newegg)
Optical Drive: Lite-On iHAS124-04 DVD/CD Writer ($18.98 @ Outlet PC)
Operating System: Microsoft Windows 8 Full (64-bit) ($99.99 @ Newegg)
Total: $1633.84
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-03-09 14:56 EST-0500)

 

[Outlander_04]

You would only need a 600 watt PSU for that build . 650 at most
http://www.realhardtechx.com/index_archivos/Page362.htm

Not sure why you need a network adapter . The mb has one