GPU help

[ShadowGaming]

What should i get in my build a single 680 or sli 670's ?? my set up is this with the sli :

Case
NZXT PHANTOM WHITE GAMING CASE

Processor (CPU)
Intel® Core™i7 Quad Core Processor i7-3770K (3.5GHz) 8MB Cache

Motherboard
ASUS® P8Z77-V: PCI-E 3.0 READY, WIFI, SLI, CROSSFIREX

Memory (RAM)
16GB SAMSUNG DUAL-DDR3 1333MHz (4 X 4GB)

Graphics Card
2GB NVIDIA GEFORCE GTX 670 - 2 DVI, HDMI, DP - 3D Vision Ready

2nd Graphics Card
2GB NVIDIA GEFORCE GTX 670 - 2 DVI, HDMI, DP - 3D Vision Ready

Memory - 1st Hard Disk
2TB WD CAVIAR BLACK WD2002FAEX, SATA 6 Gb/s, 64MB CACHE (7200rpm)

1st DVD/BLU-RAY Drive
24x DUAL LAYER DVD WRITER ±R/±RW/RAM

Power Supply
CORSAIR 850W ENTHUSIAST SERIES™ TX850 V2-80 PLUS® BRONZE (£99)

Processor Cooling
SPIRE THERMAX ECLIPSE II UNIVERSAL DT EXTREME CPU COOLER (£39)

Sound Card
ONBOARD 6 CHANNEL (5.1) HIGH DEF AUDIO (AS STANDARD)

Network Facilities
GIGABIT LAN & WIRELESS 802.11N 300Mbps PCI CARD (£16)

USB Options
6 x USB 2.0 PORTS @ BACK PANEL (MIN 2 FRONT PORTS) AS STANDARD

Operating System
Genuine Windows 7 Home Premium 64 Bit - inc DVD & Licence (£79)

Office Software
FREE Microsoft® Office Starter 2010 (Limited functionality Word & Excel)

Anti-Virus
BULLGUARD INTERNET SECURITY - FREE 90 DAY TRIAL

Monitor
IIYAMA E2473HDS 24" LED WIDESCREEN, 2 HDMI/DVI-D 1920x1080 (£159)

Keyboard & Mouse
Razer® Black Widow Ultimate Mechanical Gaming Keyboard (£108)

Mouse
Razer® Naga MMO Gaming Mouse - 12 Button Thumbgrid (£65)

 

[Narcotics]

sli 670's

 

[dangro474]

Definitely 670's. The price increase for a 680 simply isn't worth it for the paltry performance increase, and the 670's overclock better.

 

[baron75mk2]

GTX 670s - SLI , two of them will outperfom a single GTX680 considerably in terms of FPS.