Crossfire HD 7770 PSU ??!?

[hunter86_bg]

Hello guys , i'm building my own rig but i got a problem choosing a PSU.
I got the AMD FX-8120 chip, 8 GB of ram, 1 HDD 500GB drive,and I will use 2 HD 7770 (i got 1 and i plan to get a second one).
I am planing to buy them from amazon uk as it oly ships to my country. I have picked those 2 PSUs and i need your recommendation .
1)Antec EarthWatts Green Series EA-650 650W Power Supply Unit - http://www.amazon.co.uk/Antec-EarthWatts-Series-EA-650-Supply/dp/B0071I55PY/ref=sr_1_146?m=A3P5ROKL5A1OLE&s=computers&ie=UTF8&qid=1358533752&sr=1-146#productDetails

2)Zalman ZM600-GT 600W ATX Power Supply- http://www.amazon.co.uk/Zalman-ZM600-GT-600W-Power-Supply/dp/B007MJGFY2/ref=sr_1_144?m=A3P5ROKL5A1OLE&s=computers&ie=UTF8&qid=1358533244&sr=1-144

Sadly my budged will be around 60-70 pounds so i need a good PSU with less extras but that will support the future Crossfire mod and will have some power for OC-ed CPU.

 

[Rammy]

Neither of those are bad PSUs as such, but for the price you might be better off with one of these-

550W http://www.amazon.co.uk/XFX-P1-550S-XXB9-PRO550W-Edition-Supply/dp/B004RJ8EKI/
650W http://www.amazon.co.uk/XFX-Edition-Bronze-Certified-Wired/dp/B006ZT8X90/

Also the Antec HCG series are very good too, and based on the same Seasonic stuff but usually cheaper.

 

[clutchc]

Of Rammy's choices, I would recommend the OCZ. Of your choices, I would select the Antec. But keep in mind that mid-range cards (especially AMD) have an issue with micro-stutter when paired up.
http://www.tomshardware.com/reviews/radeon-geforce-stutter-crossfire,2995.html

 

[hunter86_bg]

Could you give me a link to Rammy's choice of OCZ ? I'm quite new to the forum. Thanks in advance.

 

[clutchc]

Could you give me a link to Rammy's choice of OCZ ? I'm quite new to the forum. Thanks in advance.

Sorry, I mis-typed. I meant to say the Xfx 650W PSU. I confused this post with another I was working on.

 

[hunter86_bg]

What do you think about this one :
Antec EarthWatts Green Series EA-650 650W Power Supply Unit - http://www.amazon.co.uk/gp/product/B0071I55PY/ref=ox_sc_sfl_title_3?ie=UTF8&psc=1&smid=A3P5ROKL5A1OLE

 

[clutchc]

What do you think about this one :
Antec EarthWatts Green Series EA-650 650W Power Supply Unit - http://www.amazon.co.uk/gp/product/B0071I55PY/ref=ox_sc_sfl_title_3?ie=UTF8&psc=1&smid=A3P5ROKL5A1OLE

That would be fine. I have used and liked all the Antec PSUs I've had. But remember, with that unit you will be limited to 2 cards that only require a single 8/6 pin PCIe pwr cable each (like your 2 x HD 7770s) or a single card that takes 2 8/6 pin cables. Not an issue probably, just thought I'd mention it. Oh, and remember that it doesn't come with a power cable. They assume you will be using your old cable.
http://www.antec.com/pdf/flyers/EA650_Green_EN.pdf

Here is a review from one of the most respected PSU evaluation sites: http://www.kitguru.net/components/power-supplies/zardon/antec-earthwatts-ea-650w-review-green-2011/

 

[hunter86_bg]

What do you think about this one: Corsair TX650W V2? I can't find what type of connectors it has and if it could support crossfire of 2 7770s.It seems to be quite a deal.

 

[Rammy]

Corsair TX650 V2 has been discontinued, which is perhaps why there are deals to be had.
It comes with 2 (6+2) PCIe connectors which is perfectly sufficient for 7770 Xfire.
It's a good unit, if it's on offer for a good price then definitely grab one.

 

[hunter86_bg]

Thanks Rammy!It's really on a deal.

 

[hunter86_bg]

Best answer selected by hunter86_bg.