Corsair VX450 vs CM extreme power 600 (some key differences)
(1) Rated at 50 degreesC (iirc/afaik) vs rated at 25 degreesC
(2) Active PFC (0.99) vs passive PFC
(3) 80%+ efficiency guranteed vs 65-70% roughly.
(4) Hi-Qual Jap caps vs not so Jap caps
(5) Double ball bearing fan vs sleeve bearing fan most prolly
(6) 5 yr warranty vs 2/3 yr warranty (heard that low end CM psu like Extreme power series have only 2yr warranty now. )
(7) Seasonic vs Seventeam budget/value range.
CM600 is a Seventeam 500 tweaked to show a peak of 600W- so i hope u get the idea.
CM prefers to call the Seveanteam500 with the same components a 600 watter- something smells fishy.
Plus they conveniently miss out on mention of rails in specs and pic of specs chart sticker on the psu on their site- i couldn't find it.
Secondly, this part of psus cannot be approached in a pure mathematical way- seems u have't understood what efficiency means.
If we go forth by your way of interpreting efficiency>
If u need 360W from a VX 450, as per ur calculations, it will draw 450W from the wall socket.
Then the CM 600 at 65% will draw 553W from the mains to provide that same 360W.
Still Who's the Bakra??
A lot of reputed reviewers have stated that the Corsair units are very conservatively rated.
If one were to follow CM's rule of rebadging a known not so efficient 500watter as 600W, then maybe the VX450 can easily be badged as a 550-600W unit.
And maybe Corsair, as per their standards, will call the CM600 a 400W unit, if they make a not so efficient, not so good quality psu i.e..
check out
The percentage part for efficiency cannot be directly applied to the amps per rail or total amperage over just the 12v rail, i think.
If that was the case, then maybe we could have managed to manufacture quite efficient psus easily- efficiency is measure over the entire range of power outputted. iirc. .
Plus you cannot add up 2 rails directly for total amps on 12v rail- this is most basic of all rules wrt multi-rail psus.
Plus just numbers on paper have nothing to do with the stability and purity of the various o/p signals, etc... which is one of the biggest factors in choosing a psu
Oh i m learning
.Never enter a battle of wits unarmed
.Keep talking, someday you'll say something intelligent!.