Tier A Power Supplies

↪ Notes: FDB fan; Hong Hua

↪ Notes: Costdown Core Reactor II

↪ Notes: 1000W model has poor transient response on 12V under 200% spike, other models mediocre. 850/1000W avail. in white.

↪ Notes: 12V-2x6 connector (GPU side) has thermistors to act as an "OTP". Stellar ripple suppression, especially on the minor rails.

↪ Notes: OCP is set way higher than necessary on the 12V and 5VSB rails. Good noise profile given its capacity.

↪ Notes: FSP-57AZB. 12V-2x6 connector (GPU side) has thermistors to act as an "OTP".

↪ Notes: 650W has poor 3.3V 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: Not to be confused with the downgraded non-modular Pure Power 12!

↪ Notes: Bridgeless PFC, OCP needs tuning on all rails

↪ Notes: Excellent noise profile.

↪ Notes: Bridgeless PFC, very high component and build quality. OCP needs tuning on all rails. Excellent noise profile.

↪ Notes: Excursion response in the 200% test could be better compared to other units in its class. Excellent noise profile.

↪ Notes: Design modified for multiple 12V rails: 3 on ≤550W, 4 on ≥650W

↪ Notes: Good build and component quality, with good ripple suppression and a decent noise profile. Notably, Aris received a PPG-C sample with a higher capacitance bulk capacitor, different from what other reviews had. PPG-C and PPG-S are identical aside from modularity.

↪ Notes: Good build and component quality, with good ripple suppression and a decent noise profile. Notably, Aris received a PPG-C sample with a higher capacitance bulk capacitor, different from what other reviews had. PPG-C and PPG-S are identical aside from modularity.

↪ Notes: Basically G1278 updated to ATX 3.0

↪ Notes: Still essentially G1278 with further updates to ATX 3.1

↪ Notes: Single/multi-rail switchable.

↪ Notes: Extremely high build quality; made in Japan; decent performance.

↪ Notes: No internal changes, but 1300W only.

↪ Notes: Same platform as SilverStone HELA 2050 Platinum.

↪ Notes: Braided cables, some units manufactured between Oct. 2019 to Mar. 2020 (lot codes 194448xx to 201148xx) recalled for potential failures.

↪ Notes: Standard cables

↪ Notes: v2, 160mm long, doesn't have 1000W version; custom Corsair rifle bearing fan.

↪ Notes: v1, 160mm long

↪ Notes: Blue label. Tiering is based on electrical performance and should not preclude the usual caveats if buying used power supplies.

↪ Notes: v1, 180mm long

↪ Notes: v1, 180mm long, individually sleeved cables; custom Corsair rifle bearing fan.

↪ Notes: v2, 160mm long; custom Corsair rifle bearing fan.

↪ Notes: v1, 180mm long. Production continued far past other 2015 RM-x units as the 2018 revision has no 1kW variant.

↪ Notes: Blue label. Tiering is based on electrical performance and should not preclude the usual caveats if buying used power supplies.

↪ Notes: ATX 3.0 compliant; uses dual 8-pin to 12VHPWR.

↪ Notes: No performance data, however platform is well reviewed with protections working in similar configs.

↪ Notes: OCP originally set way too high; fixed in later reviews from July 2024. Excellent electrical performance. ATX 3.1 and ATX12VO compatible.

↪ Notes: Old but gold (no pun intended.)

↪ Notes: Same internals as the original G2, but with white LEDs (yes, really.)

↪ Notes: Old but gold (no pun intended.)

↪ Notes: Old but gold (no pun intended.)

↪ Notes: Fundamentally a Hydro G refresh. OTP isn't tested but platform is well reviewed with OTP working in similar configurations.

↪ Notes: The base platform of the EVGA G7, which is well reviewed with protections working in similar configurations.

↪ Notes: 850W has excellent noise graph.

↪ Notes: Identical to the ASRock Taichi, however until further testing exists, it will not receive a "+" grade. See teardown here.

↪ Notes: P1 refreshed for ATX 3.1; Falsely claimed Cybenetics Gold certification, units were never tested.

↪ 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: German bulk caps; dual-chamber L-shape design; modular inputs on the main PCB. 1000W and up models come with a USB/fan hub.

↪ 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: Excellent performance and noise profile. OPP and OCP on the minor rails need tuning. They do work but are set way higher than necessary.

↪ Notes: Multi-rail functionality effectively negated by per-rail 12V OCP being set especially high. OPP is still functional.

↪ Notes: ATX 3.0 refresh

↪ Notes: Semi-digital.

↪ Notes: Only one 8-pin PCIe cable! Dual 12VHPWR. Good performance in pre-production sample, but needs fine-tuning. Semi-digital.

↪ Notes: Digital primary & 12V; analog minor rails & standby.

↪ Notes: Added MCU and secondary supervisor IC.

↪ Notes: Fan grille without island about the fan hub. 140mm fan

↪ Notes: Fan grille with islands above the fan hub and for fan mounting holes. 120mm fan

↪ Notes: Excellent noise profile.

↪ Notes: A refreshed Phanteks AMP 1000W with a 12+4 cable. White variant is available.

↪ Notes: Semi-digital, Razer Chroma integration with other Razer products.

↪ Notes: The OCP and OPP triggering points need tuning. Very good ripple suppression, and decent component quality. Excellent noise profile.

↪ Notes: Some units produced before 2018 may experience shutdowns with high transient draw GPUs.

↪ Notes: SFX-L

↪ Notes: Minor changes with a "V3" model released in 2019.

↪ Notes: Some units produced before 2018 may experience shutdowns with high transient draw GPUs.

↪ Notes: Some units produced before 2018 may experience shutdowns with high transient draw GPUs.

↪ Notes: Minor changes with a "V3" model released in 2019.

↪ Notes: White versions of Focus (yes) Gold / Platinum and Prime Titanium.

↪ Notes: White versions of Focus (yes) Gold / Platinum and Prime Titanium.

↪ Notes: Modification of Focus with separate modular piece, extremely similar to the Syncro Connect.

↪ Notes: Basically a Prime Gold with a slightly different exterior appearance and extra fan modes.

↪ Notes: The OCP, OPP, and OTP triggering points, while functional, are set way higher than necessary. Very high build quality. 10 year warranty.

↪ Notes: Fanless

↪ Notes: Updated for ATX 3.0 to include dual 12VHPWR. Only 1650W under 120VAC

↪ Notes: Only 1650W under 120VAC

↪ Notes: Hold-up time fails to meet the ATX minimum specification.

↪ Notes: 850W has weak 3.3V transient response, but otherwise works well. 1000W seems to lack proper efficiency certifications, but meets gold criteria.

↪ Notes: 1200W hold-up time fails to meet the ATX minimum specification.

↪ Notes: Initial testing from 2024 showed 5VSB OCP was set too high leading to failure of the unit. The unit was retested in June 2025 and passed.

↪ Notes: 230V only since 115VAC sockets cannot supply 2kW of power.

↪ Notes: BE WARY OF ATX 3.1 2024 VARIANT! Poor transient response on 3.3V and load regulation on 5VSB. Very good electrical performance otherwise.