Yet Another "Does my PSU have enough wattage?" question

Hardware Hub PSU
1

Yeah...

I downgraded my theoretical build from a Rosewill 550W, to an EVGA 500W. Unfortunately, this might be a problem for what it'll be powering.

FX-8320 (Not exactly overclocked, but I'll enable the built in Turbo boost it has which brings it up to 4 GHz)

Sapphire HD 7950: Overclocked from 860 MHz to around 1000MHz

The estimated wattage on PCPartPicker is 434W however, I doubt this includes overclocking. I'm leaning towards that this won't be enough. Especially since I know that you want headroom on your PSU so it'll last longer.

2

Try this out, it worked well for me and was accurate to about 10 watts. http://www.thermaltake.outervision.com/

I would go for a 600 or 650 watt, they aren't really any more expensive than a 500w PSU. I got a Bronze rated EVGA 600 watt PSU from newegg and it's great and was only $40 at the time. http://www.newegg.com/Product/Product.aspx?Item=N82E16817438014

AMD FX 6300 Vishera

8GB Crucial Ballistix 2x4 DDR3

MSI 970A G46

MSI GTX 660 TF 2GB

EVGA 600 watt PSU 

 

3

A good 550-600W should suit your purposes.

If you're going to be overclocking, I would prefer 600W as to not stress out the PSU as much.

4

FX-8350 + 7970 GHz Edition uses less than 400W in BF3. You'll be fine with 500W.

5

You'll be fine.

6

You're everywhere, aren't you?