P Efficiency Power Supplies
Browse 175 P efficiency units with full specs.
Search through power supply units by various criteria including brand, wattage, tier, topology, ODM, and more
Showing 75 of 175 entries in P efficiency
↪ Notes: FDB fan; Hong Hua
↪ Notes: Fan is of questionable quality. Yate Loon DBB. Loose 12V transient response.
↪ Notes: Semi-digital
↪ Notes: Semi-digital
↪ Notes: The OCP trggering point for the 5VSB line allows for extremely excessive ripple.
↪ Notes: Updated R series
High Current Gamer (HCG) Pro Platinum
DC-DC
Seasonic
Vertex PX
↪ Notes: Excellent electrical performance, component quality, and noise profile. 12V-2x6 connector has thermistors to act as an "OTP", optional "5V Boost."
↪ Notes: The 5VSB OCP triggering point allows for excessive ripple. Ripple exceeds requirements for tier A under crossload, 100% load, and 110% overload.
↪ Notes: Not to be confused with the Xigmatek Loki.
↪ Notes: 5VSB OCP set high, poor 3.3V transient response in the 200% excursion
↪ Notes: Fan profile is extremely relaxed, OCP is set way too high on the minor rails, no FFP despite being an extremely expensive platform.
↪ Notes: Much better performance than the 1200W model and fewer issues despite using the same platform.
↪ Notes: Multitude of minor issues leading to low overall performance, does not meet requirements for tier A in Aris' testing. Possible bad sample?
Straight Power 11 Platinum
DC-DC
FSP
Hydro PTM Pro high-wattage
↪ Notes: Double-sourced between FSP and HEC. FSP provides the 1200W variant for the US market and HEC supplies it for the European market. Good noise profile and electrical performance. First be quiet! PSU with semi-passive operation.
↪ Notes: Double-sourced between FSP and HEC. FSP provides the 1200W variant for the US market and HEC supplies it for the European market. Good noise profile and electrical performance. First be quiet! PSU with semi-passive operation.
↪ Notes: First be quiet! PSU with semi-passive operation.
↪ Notes: 3.3V transient response could be better, overall performance is good, alongside a relatively quiet noise profile.
↪ Notes: Semi-digital
V-Series
"Vanguard" Platinum Standard
DC-DC
Delta Electronics
GM
↪ Notes: Single/multi-rail switchable.
V-Series
"Vanguard" Platinum 30th Anniversary
DC-DC
Delta Electronics
GM
↪ Notes: No internal changes, but 1300W only.
↪ Notes: Same platform as SilverStone HELA 2050 Platinum.
V-Series
"Vanguard" Platinum V2
DC-DC
Gospower
G1398 (Custom)
↪ Notes: One review showed ripple on the 12V rail at 62mV for the 1600W, other samples were within 50mV. 5VSB OCP is set high.
↪ Notes: Same internals as the Plus Platinum without the screen, ARGB fan, or digital control.
↪ Notes: Built-in screen, ARGB fan, and digital fan control and monitoring via MasterPlus software.
↪ Notes: Rated for 850W under 115VAC and advertised as 850W in North America.
↪ Notes: Rated for 1100W under 230VAC, but can still be used under 115VAC for 850W.
↪ Notes: Same platform as the Edge Platinum but with active cooling; full 1300W rating regardless of input range.
V-Series
"Vanguard" Platinum SFX ATX 3.0
DC-DC
Sysgration
Custom
↪ Notes: 230V input only
V-Series
"Vanguard" Platinum SFX ATX 3.0
DC-DC
Sysgration
Custom
↪ Notes: Braided cables, some units manufactured between Oct. 2019 to Mar. 2020 (lot codes 194448xx to 201148xx) recalled for potential failures.
↪ Notes: Blue label. Tiering is based on electrical performance and should not preclude the usual caveats if buying used power supplies.
↪ Notes: Blue label. Tiering is based on electrical performance and should not preclude the usual caveats if buying used power supplies.
↪ Notes: Gray label. Per-connector 40A OCP when multi rail is enabled
↪ Notes: Class-leading performance, excellent build quality, relatively quiet for the capacity.
↪ Notes: Black label, triangle fan grille. Digital monitoring and semi-passive operation controlled via USB-C connector in software.
↪ Notes: Refresh with included 12V-2x6 cable and listed ATX 3.1 compliance. Actual design appears to be the same internally.
↪ Notes: Gray label. Per-connector 40A OCP when multi rail is enabled
↪ Notes: Refresh with included 12V-2x6 cable and listed ATX 3.1 compliance. Actual design appears to be the same internally.
↪ Notes: Minor changes on the primary side, overall very similar; merely a refresh. Embossed cables instead of flat cables from older generations. (Fancy)
↪ Notes: Black label, triangle fan grille. Digital monitoring and semi-passive operation controlled via USB-C connector in software.
↪ Notes: Refresh with included 12V-2x6 cable and listed ATX 3.1 compliance. Actual design appears to be the same internally.
↪ Notes: Semi-digital. Outstanding performance per Aris' review.
↪ Notes: OCP originally set way too high; fixed in later reviews from July 2024. Excellent electrical performance. ATX 3.1 and ATX12VO compatible.
↪ Notes: 13 year warranty. 5VSB OCP still allows for extremely excessive ripple. Good performance otherwise.
↪ Notes: Claims necessary protections but weren't evaluated in Aris' testing, OTP was kicked in during voltage regulation testing.
↪ Notes: Solid electrical performance, however let down by poorly modulated protections and mediocre ripple performance.
↪ Notes: No OCP on 12V, OCP on the minor rails and OPP are both set way too high to be effective, no OTP, poor build quality.
↪ Notes: Poor transient response on 3.3V.
↪ Notes: The base platform of the EVGA G7, which is well reviewed with protections working in similar configurations.