Best gtx 6xx to go for in Australia

[robomartion]

I've gone through amazon (everywhere else in aus is ridiculously priced) to see which GTX 670s and 680s were shipping to australia for a reasonable price and have whittled down my options to:

$399 Galaxy 670
http://www.amazon.com/gp/product/B007Z33SYA/ref=ox_sc_act_title_2?ie=UTF8&smid=ATVPDKIKX0DER

$440 Galaxy 670 (with after market cooling)
http://www.amazon.com/gp/product/B007ZSYC72/ref=ox_sc_act_title_1?ie=UTF8&smid=ATVPDKIKX0DER

$470 Asus DC2T 670
http://www.amazon.com/gp/product/B0081IFO3G/ref=ox_sc_act_title_4?ie=UTF8&smid=A37VHTD60S0G3C

$500 Galaxy 680
http://www.amazon.com/gp/product/B007KFDFW8/ref=ox_sc_act_title_5?ie=UTF8&smid=ATVPDKIKX0DER

there was also the galaxy 680 soc edition for $560 but it has no dual link dvi

(the nicely piced gb wind force (670 or 680) isn't shipping to Australia..)

the only evga cards are a reference 670 for $399 and a 680 sc2 for $520 but I believe evga bins their chips so all the good ones would go to ftw etc (which aren't shipping to aus) and these two cards would get the worst performing ones.

Im leaning torwards the galaxy 670 oc or the galaxy reference 680.

whats gonna be my best bet?

I will most likely add another in the future for SLI.

I have 1080p vg278h and am hoping for 120fps 2d/60fps 3d on acceptable settings

If anyone could link me to a benchmark/forum or just give some insight comparing performance/overclockability between:
670 reference
670 w/ after market cooling
680 reference
680 w/ after market cooling
that would be great

thanks

 

[verbalizer]

http://www.hardocp.com/article/2012/07/30/msi_geforce_gtx_680_lightning_overclocking_redux/6
MSI GeForce GTX 680 Lightning Overclocking Redux

Gameplay Summary

The highest stable overclock with voltage on the MSI GeForce GTX 680 Lightning using the default BIOS had a significant performance increase compared the overclock without voltage tweaking. In Max Payne 3 it was 8.9% faster than the overclocked MSI GeForce GTX 680 Lightning without voltage tweaking and 14.1% faster than the stock video card. BF3 Singleplayer the highest overclock was 16.1% faster than its stock settings. In BF3 Multiplayer it averaged 74 FPS and was 9.8% faster than the overclock without voltage tweaking, and 15.3% faster than the stock video card. In Batman it was 7.7% faster than the overclock without voltage tweaking and 14.5% faster than the stock video card. In The Witcher 2 it was 8.9% faster than the OC without voltage tweak and 14.3% faster than the stock MSI GeForce GTX 680 Lightning.

Basically, the performance increase between the overclock with and without voltage tweaking was higher than the performance increase the stock MSI GeForce GTX 680 Lightning experienced from the overclock without voltage tweaking. In other words, voltage tweaking provided over double the performance increase compared to the overclock without voltage tweaking.

With fans at 100% the GPU temperature on the default BIOS increased to 62c using voltage tweaking.

The LN2 BIOS had an even higher overclock which pushed the GPU extremely close to 1400MHz, and put the memory over 7GHz GDDR5. In MP3 it was 8.1% faster than the Overclocked AMD Radeon HD 7970 and 18.1% faster than its stock settings. In BF3 SP it was 4.3% faster than the Overclocked AMD Radeon HD 7970 and 17.9% faster than the stock MSI GeForce GTX 680 Lightning. In Batman the overclocked MSI GeForce GTX 680 Lightning was 16.2% faster than its stock settings, and 19.3% faster than the Overclocked AMD Radeon HD 7970. In The Witcher 2 it was 2.4% faster than the Overclocked AMD Radeon HD 7970 and 14.3% faster than the stock settings. The overclock on the LN2 BIOS increased the performance above the Overclocked AMD Radeon HD 7970 in every game.

With the fans at 100% the GPU temperature on the LN2 BIOS increased to 73c using voltage tweaking and 300% Power Limit.

http://hothardware.com/Reviews/GeForce-GTX-680-RoundUp-EVGA-Zotac-Gigabyte-Asus/?page=6

 

[robomartion]

Best answer selected by robomartion.