well it all depends what your trying to power, if you have a system that takes say 400 watts then the artic one will be better as the quality is better but if you have a sytem that take 500 watts then the other power packs would be better. if a psu as a better name than the other the wattage it gives out is still the same only better made ones are more realible, better mad and cost more but for ordinary everyday use a cheaper one would be adiquate but thats really up to you the wattage of your system and how much your willing to spend! hope this helps Dave :good: