PowerColor HD6790 on 18A 12V rail

[roniellodelmoro]

Hello,

My system specs are:
i3-2100
P8H61-M LE/USB3
500GB WDC WD5000AAKX
ATAPI iHAS124
4GB Kingston DDR3 1333
2x 8mm chasis fan
PowerColor HD6790 (150W on 1 pcie)

Am I safe with my FSP Supersonic 500W 550W peak with two 12V rail, 18A each?
According to reviews, PowerColor HD6790 will draw 150W so am I right with my simple calculation 12V*18A=216W? Will 216W be enough to power my gpu?

This is my PSU http://www.conversense.net/power-supply/24-fsp-super-sonic-500

 

[rockyjohn]

Yes you should be safe. According to the following review the benchmark system - the total used - used 240w at fuill stress and the recommendation for minimum PSU is 450w.

http://www.guru3d.com/article/radeon-hd-6790-review/6

Here is a review on the PowerCooler HD 6790.

http://www.overclockersclub.com/reviews/powercolor_6790/

However, PowerCooler is not one of the top brands. See the list of good brands here:

http://www.upgradevideocards.com/brands.html

I recommend paying $5 more to get the XFX HD 6790 with a lifetime warranty:

http://www.newegg.com/Product/Product.aspx?Item=N82E16814150564

 

[roniellodelmoro]

Yes you should be safe. According to the following review the benchmark system - the total used - used 240w at fuill stress and the recommendation for minimum PSU is 450w.

http://www.guru3d.com/article/radeon-hd-6790-review/6

Here is a review on the PowerCooler HD 6790.

http://www.overclockersclub.com/reviews/powercolor_6790/

However, PowerCooler is not one of the top brands. See the list of good brands here:

http://www.upgradevideocards.com/brands.html

I recommend paying $5 more to get the XFX HD 6790 with a lifetime warranty:

http://www.newegg.com/Product/Product.aspx?Item=N82E16814150564

Thank you. I already bought my rig components. I just wondering if I have to replace my PSU. Luckily, I don't have to. As you said I'm safe with that. My budget is so tight to spend more for branded PSU.

 

[c3h8]

If you use both rails you shouldn't have any fear 2(18*12)=432watts
Your CPU eats a measly 65 watts, 240 watts for the Graphics card, 305/432 watts used
You should be fine. Based on brand name, I would ditch the PSU for one from a reputable company (ABS, Antec, Corsair, Enermax, OCZ, SilverStone, XFX)

 

[iam2thecrowe]

the ati 6850 actually uses less power than the 6790 and is faster, i would get that instead.

 

[roniellodelmoro]

I think 6850 is overkill for me because I am only playing at 1366x768.