7970 8 Pin Power supply

[Fathead Mcgyver]

Hello, I was looking to buy the 7970 and I know it has one 6 pin and one 8 pin requirements. My question was if I am able to use a 2x 4 pin to 8 pin converter for the 8 pin?

My PSU has 2 6 pin and is 700 W and is as follows:
http://imgur.com/fB6yqi5

Thanks in advance

Edit: From reading around I have gotten the impression that a single 6 to single 8 pin converter leads to the GPU not getting enough power. I would like to know more on this as well

 

[HiTechObsessed]

Most of the GPUs come with 6pin to 8pin adapters, why not use the 6 pin PCIe leads?

 

[lonewolf7]

Hello mate, HD 7970 requires 30 Ampere on +12V rail of a 500W decent PSU, though the card will pull only 250W on max load.

Your PSU says its a 720W PSU with dual +12V rail which supplies 44A combined, but I think its a fake calculation, cause a decent 550W PSU will deliver 44 A. And that PSU of yours is also not a trusted unit, may break in stressful situation. The makers inflate the wattage to fool you. And a decent 500/550W PSU has equipped with 1 x 6, 1 x 8 pin connectors, but yours one is missing the 8 pin connectors. So I think it will be better if you replace the PSU.

Here is a solid one :

PCPartPicker part list / Price breakdown by merchant / Benchmarks

Power Supply: XFX 550W 80+ Bronze Certified ATX Power Supply ($59.99 @ NCIX US)
Total: $59.99
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-01-22 13:40 EST-0500)