P Efficiency Power Supplies
Browse 167 P efficiency units with full specs.
Sort 1
Sort 2
Sort 3
Showing 167 of 167 entries in P efficiency
Brand
Series
Wattages
Tier
Year
Size
ATX Ver.
Input
Modular
Eff.
Topology
ODM
Platform
↪ Notes: FDB fan; Hong Hua
↪ Notes: Fan is of questionable quality. Yate Loon DBB. Loose 12V transient response.
↪ 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?
↪ Notes: First be quiet! PSU with semi-passive operation.
↪ Notes: Semi-digital
↪ Notes: Single/multi-rail switchable.
↪ 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
SF Platinum 2019
DC-DC
Great Wall
Modified SF Gold platform
↪ 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.
↪ Notes: Fails EMI testing, 2 EPS connectors on one cable, minor rails are either failing or near failing with regards to transient response.
Hydro PTM Pro
DC-DC
FSP
Hydro PTM Pro high-wattage
↪ Notes: One EPS cable with two connections, transient response on the minor rails are very subpar, OCP needs tuning per Aris' testing.
↪ Notes: Identical to the PTM X Pro made for ATX 3.0 compliancy.
↪ Notes: Highly likely a similar platform to the PTM Pro ATX 3.0, OTP works in similar configurations (PTM Pro). Superb electrical performance.
Aurum Platinum (PT)
DC-DC
FSP
Aurum Platinum
↪ Notes: Solid electrical performance (A tier) but nothing regarding protections has been tested. B+ until further notice.
↪ Notes: YL rifle bearing fan.
↪ Notes: Good overall electrical performance and component quality. Version 1.0 is ATX 3.0, Version 1.1 is ATX 3.1 to replace 12VHPWR with 12V-2x6.
↪ Notes: Good overall electrical performance and component quality. Version 1.0 is ATX 3.0, Version 1.1 is ATX 3.1 to replace 12VHPWR with 12V-2x6.
↪ Notes: The OCP triggering point on the 5VSB rail allows for extremely excessive ripple; 5V rail hot triggering point allows for a voltage drop out of spec.
↪ Notes: The OCP triggering point on the 5VSB rail allows for extremely excessive ripple; 5V rail hot triggering point allows for a voltage drop out of spec.
↪ Notes: Malfunctioning OCP on 3.3V, and transient response on 3.3V is out of spec, questionable choices of components.
↪ Notes: OTP either not present or set too high per Aris' review. Multi-rail 12V OCP is negated by being set high (>490W), but OPP is functional.
↪ Notes: Power cord isn't available unless bought with the unit, extremely noisy, missing tiny quality of life features.
↪ Notes: Protections need serious tuning; abundant amount of minute issues
↪ Notes: German bulk caps; dual-chamber L-shape design; platform is an EPS-0100 modified to put the modular inputs on the main PCB.
↪ Notes: Good electrical performance and reasonably quiet for the category.
↪ Notes: Rotatable power outlet. 5VSB OCP is high. Includes a USB 2.0 hub.
↪ Notes: Protections need tuning and mediocre ATX 3.0 transient response; overall performance is dwarfed by the CWT-built Titan Gold.
↪ Notes: Interleaved PFC, semi-digital
↪ Notes: Yate Loon rifle bearing fan. The OCP triggering point for the 5VSB line allows for extremely excessive ripple.
↪ Notes: Yate Loon rifle bearing fan. The OCP triggering point for the 5VSB line allows for extremely excessive ripple.
↪ Notes: Semi-digital, interleaved PFC, magnetic levitation (maglev) bearing fan
↪ Notes: Dual system. Load regulation on 12V could be better.
↪ Notes: Modular board protudes from the unit
↪ Notes: Overall good performance, uses a YL rifle-bearing fan.
↪ Notes: OTP is set over >200C (doesn't function as intended). 850/1000W might not be similar to the 1200W.
↪ Notes: Semi-digital, Razer Chroma integration with other Razer products.
↪ Notes: Claims OTP but not tested in Aris' review, B+ until further notice.
↪ Notes: The OCP and OPP triggering points need tuning. Very good ripple suppression, and decent component quality. Excellent noise profile.
↪ Notes: Based on the same platform as the Black Hole; OTP untested; some parts remain unidentifiable; white variant available.
↪ Notes: Some units produced before 2018 may experience shutdowns with high transient draw GPUs.
↪ Notes: White versions of Focus (yes) Gold / Platinum and Prime Titanium.
↪ Notes: Malfunctioning OTP per Aris' testing
↪ Notes: Failed 3.3V transient response (although by 0.02V), 5V OCP needs tuning. Rifle bearing fan. Decent electrical performance.
↪ Notes: EPS cable melted during efficiency testing, so protections were not tested. Possible bad sample. Avoid until further notice. No claimed OTP.
↪ Notes: The OCP (+12V and 5VSB lines) and OPP triggering points are set way higher than necessary. Mediocre transient response. 7 year warranty.
↪ Notes: OOS transient response on 3.3V. The OCP and OPP triggering points are insane, particularly 5VSB OCP, which is set over 200%. 7 year warranty.
↪ Notes: Fanless
↪ Notes: Updated for ATX 3.0 to include dual 12VHPWR. Only 1650W under 120VAC
↪ Notes: Only 1650W under 120VAC
↪ Notes: Excellent overall performance, component, and build quality, quietest SFX unit in its class.
↪ Notes: SX-G upgraded to Platinum efficiency.
↪ Notes: Very poor transient response and ripple on 3.3V.
↪ Notes: Bad power good signal.
↪ Notes: Good electrical performance let down by no inrush protection; bad power good signal.
↪ Notes: OTP either set over 200C or not present; extremely loud (over 42dbA) under full load, and mediocre performance all around.
↪ Notes: OTP either set over 200C or not present.
↪ Notes: Interleaved PFC. Good performance, but OPP & 12V OCP allow the unit to exceed the AC receptacle's current rating. OOS 3.3V transients.
↪ Notes: Numerous issues capped off by malfunctioning OPP that either doesn't exist or is set way too high, which caused the unit to explode.
↪ Notes: Malfunctioning OCP and OPP that fails to kick in before the unit's line voltages drop out of spec.
↪ Notes: Hold-up time fails to meet the ATX minimum specification.
↪ Notes: 1200W hold-up time fails to meet the ATX minimum specification.
↪ Notes: 230V only since 115VAC sockets cannot supply 2kW of power.
↪ Notes: Unusually tight OCP triggering points and 20 gauge wire for the far-end PCIe connectors. Treat capacity as ~100W lower than advertised.
Leadex VI Platinum Pro
DC-DC
Super Flower
Leadex VI Platinum
↪ Notes: OCP on 3.3V rail is not properly implemented.
Leadex Platinum (ATX 3.1)
DC-DC
Super Flower
Leadex GTX heavily mod.
↪ Notes: Bridgeless PFC, exceptional electrical performance per Cybenetics' entry & confirmed internal shots per Quasar Zone and Aris.
↪ Notes: No OTP and OCP (12V) present; low hold-up time (out of spec); poor soldering quality.
↪ Notes: Aggressive fan profile, ~40+ dbA output.
↪ Notes: Questionable fan quality, two EPS connectors on the same cable. Otherwise qualifies for A tier based on performance.
↪ Notes: Excellent noise profile despite uncompetitive overall performance. Poor load regulation on the 5VSB rail and poor transient response on 3.3V.
↪ Notes: Quite loud under full load, ~39dbA
↪ Notes:
↪ Notes: Single-sided PCB, voltage drops right before protection trip points on the minor rails; however, the protections did engage in time.
↪ Notes: OTP doesn't work
↪ Notes: No MOV
↪ Notes: No proper transient testing, too old.
↪ Notes: OTP works on the 1200W model, however the 5VSB OCP is so out of tune, ripple suppression exceeds 100mV.
↪ Notes: Malfunctioning protections that don't engage in time before the minor rails experience a huge voltage drop out of spec.