Corsair HX620 vs Corsair HX650W

[NIM]

Hi to all,

I am using Corsair VX550W PSU for 2 years now and all I can say that IT ROCKS!

I've recently changed my chassis and since my PSU is now separated from the motherboard in the means of another chamber (Antec P183), I have 3rd Hard drive in the same chamber and PSU. Since this is a mid tower and I don't have much space as in the big tower, I've decided to go with the modular PSU.

I was looking at the HX520W since I think it should be sufficient for my current setup, but not sure if it will be enough if I decided to upgrade my components.

I was looking at HX620W which is a bit too expensive for me, but then I've found out that HX650W is available and is even cheaper than HX620, at least here in Croatia, but I don't get why??? Is HX620W offering something more than HX650 to justify the bigger price?

Explanation and recommendations are highly appreciated.

Here's my current system specs:

MBO ASUS P5E, X38/ICH9R

Intel Quad Core Q6600 - 4 x 2.4 GHz

Corsair 4GB, 2x2GB, 800 MHz DDR2, XMS2-6400

nVidia XFX GF8800GT/512MB/Dual DVI/PciEx 600M

Creative Labs Audigy 4 24 bit Sound Card

3 hard drives (320GB + 200GB + 1500GB)

Pioneer DVR-212BK DVD+RW/-RW/RAM, SATA

Corsair v550W PSU

[ccl0]

if you plan on upgrading in the future the 650 would give more headroom.

i *think* the hx620 is the older model and the hx650 is the newer version that replaces it, i found review for the 620 back from 2007. maybe since its old and possibly discontinued then the surplus is low so the price is still high.