Which Seasonic X-series for new build?

[Salamander 2]

I'm collecting parts for a new build, and am looking for advice regarding which Seasonic X-series PSU I should get. NOTE: Please do NOT give me suggestions on other brands of PSUs.

I'm looking at the following parts:

- Mobo - yet to be determined
- Intel Core I7-2600K Sandy Bridge 3.4GHz
- HSF - yet to be determined
- Corsair Performance Pro Series CSSD-P256GBP-BK SSD
- Two - 2 TB Western Digital hard drive
- Plextor PX-LB950SA burner
- HT Omega Claro Halo sound card
- Gigabyte GV-R7970C-3GD Radeon 7970 graphics card
- AFT Pro-57U card reader
- Seasonic X-series PSU - specific one yet to be determined
- Cyberpower UPS - specific one yet to be determined
- 16-32 GB of memory (haven't decided how much yet)
- Corsair 550D case
- 3 Noctua NF-P12 case fans

Given the above, which Seasonic X-series would people recommend?

[OldChap]

Overclocked, if you were to consider that MB, a couple of fans and an HDD or two falls around 200w and the designed max for the vid card is 300w ish You might get away with a 560 but my recommend would be the x660. Buying an x750 or (760?) would do no harm and would mean that you may be running a little more efficiently at full load if you expect to be doing that a lot.

[Salamander 2]

Overclocked, if you were to consider that MB, a couple of fans and an HDD or two falls around 200w and the designed max for the vid card is 300w ish You might get away with a 560 but my recommend would be the x660. Buying an x750 or (760?) would do no harm and would mean that you may be running a little more efficiently at full load if you expect to be doing that a lot.

I probably will do some overclocking. I'll take a look at the x-750 (haven't seen the X-760 available much). Thanks!

[Andrea deluxe]

x-850 like mine...

the best psu i ever had.

[Darrelj]

You could go with the x-660 and be fine as the other poster stated. X-760 is a great choice too. I have owned it since last year and it is very steady. I admit they are someone tougher to find now.

[Salamander 2]

I'm leaning towards the X-650 (X-660 doesn't seem to be available).

[NKrader]

platinum 1000w. so much win