Specifications
The EVGA SuperNOVA 550 GS and 650 GS Gold power supplies are rated for a combined, continuous output power of up to 550 watts and 650 watts respectively at 50°C operating temperature. Both PSUs incorporate a single +12V rail. The 550 GS can deliver up to 45A (540W) on the +12V outputs while the 650 GS can deliver up to 54A (648W). And both PSUs include universal AC line input (automatically adjusts the AC line voltage) and active PFC, which make the units more environmentally friendly to the local power grid.
EVGA SuperNOVA 550 GS PSU Specifications:
(Courtesy of EVGA)
EVGA SuperNOVA 650 GS PSU Specifications:
(Courtesy of EVGA)
Do you know which Seasonic
Do you know which Seasonic platform EVGA is using? XP2S? Do they compare to the Corsair AX series (I think that’s the same platform, maybe not)? Are there any other supplies on the same platform for a compare/contrast?
These aren’t XP series.
These aren’t XP series. These are a derivitive of the G Series.
Why not use the latest Power
Why not use the latest Power Supply Design Guide for Desktop Platform Form Factors, Revision 1.31, April 2013 (http://cache-www.intel.com/cd/00/00/52/37/523796_523796.pdf)? It calls for ENERGY STAR compliance, which are tighter than the 2.2 standard you use.
Note in Table 15, for 100%, 50% and 20% loads:
REQUIRED Minimum Efficiency 70% 72% 65%
RECOMMENDED Minimum Efficiency 82% 85% 82%