NZXT C1000 ATX v3.1 PSU Review

The NZXT C1000 uses a modern platform, provided by CWT, which allows it to achieve top performance and also have a quiet operation. The unit is ATX v3.1 compatible, thanks to the 12V-2×6 connector on its modular board, so it is as future proof as it gets. 

The NZXT C1000 is included in my best ATX v3.x & PCIe 5.x PSU picks article.

After the powerful NZXT C1500 that I evaluated a while ago, it was time to look at a lower model of the line, the C1000, which can deliver up to 1000W max power continuously. Such a power amount is enough to cover the needs of a potent gaming system, leaving stronger PSUs for special situations where users have either overclocked the PC parts or have more than one GPU installed. Under overclocking conditions, the power consumption can go wild, and the funny part is that you cannot tell how much it will increase since this has to do mainly with the specific part that you will overclock and its behavior under increased clocks and of course, the overclock percentage. This is why you must ensure enough power room in your PSU before you overclock your system. If it doesn’t, you must replace it with a stronger one.

The NZXT C1000 is not quite affordable at 185 dollars. If it used the semi-digital platform of the C1500, this amount would be justified since MCUs are expensive, but this is not the case. The C1000, the C1200, and C850 use CWT’s CXT platform, which uses analog controllers. Only the C1500 has the more advanced CTT platform.

ATX v3.1 1000W PSU Reviews:

Technical Specifications:
  • Manufacturer (OEM): CWT
  • Max Power: 1000W
  • Cybenetics Efficiency: [115V] Cybenetics Gold (87-89%) [230V] Cybenetics (89-91%)
  • Noise: Cybenetics A (20-25 dB[A])
  • Compliance: ATX v3.1, EPS 2.92
  • Operating Temperature (Continuous Full Load): 0 – 50 °C (derating from 100% to 80% from 40 °C to 50 °C)
  • Alternative Low Power Mode support: Yes
  • Power 12V combined: 1000W
  • Number of 12V rails: 1
  • Power 5V + 3.3v: 120W
  • Power 5VSB: 15W
  • Cooling: 135mm Fluid Dynamic Bearing Fan (HA13525H12SF-Z)
  • Semi-Passive Operation: ✓ (selectable)
  • Modular Design: Yes (Fully)
  • High Power Connectors: 2x EPS (2x cables), 3x PCIe 6+2 pin (3x cables), 1x PCIe 12+4 pin (600W)
  • Peripheral Connectors: 12x SATA (3x cables), 4x 4-pin Molex (1x cable)
  • ATX Cable Length: 600mm
  • EPS Cable Length: 700mm
  • 6+2 pin PCIe Cable Length: 650mm
  • 12+4 pin PCIe Cable Length: 650mm
  • Distance between SATA / 4-pin Molex: 145mm
  • In-cable capacitors: No
  • Dimensions (W x H x D): 150 mm x 85 mm x 160mm
  • Weight: 1.83 kg (4.03 lb)
  • Warranty: 10-years
  • MSRP (including VAT): $185

Power Specifications

Rail 3.3V 5V 12V 5VSB
Max. Power Amps 22 22 83.3 3
Watts 120 1000 15
Total Max. Power (W) 1000
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4 thoughts on “NZXT C1000 ATX v3.1 PSU Review

  1. Very impressive work! Thank you very much! 🙂

    I was wondering if you heard anything about the Straight Power 12 from be quiet? I have barely heard about this unit and I was hesitating between the Straight Power 12, a Corsair RMx/e or a NZXT C Gold for an RTX 4070 ti Super + i5-14600K system (850 – 1000W range).

    Thank you againt!

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