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Antec Signature 1300W Platinum Power Supply Review (Page 1)

Antec Signature 1300W Platinum Power Supply Review

Antec's Signature 1300W Platinum PSU gets fully examined. Should you consider it? Let's find out.

Shannon Robb | Mar 30, 2020 at 9:10 am CDT - 4 mins, 36 secs time to read this page
Rating: 98%Manufacturer: AntecModel: X8000A506-18

Introduction, Specifications, and Pricing


Antec is no stranger to PSU's as Antec has made a name for themselves in the PC DIY market as far back as I can remember. While Antec may have been mainly known in its early enthusiasts' days for their chassis such as the Nine Hundred, but they have been creating varying levels of power supplies along this timeline as well. Antec offers units from value segment 80 Plus Bronze supplies up to high current units with platinum and even titanium efficiency ratings.

With that, today, we have one of the latter, with the new Signature series platinum supply we have in hand. The unit we have is the Antec Signature 1300W platinum. This is going to be one of the highest current power supplies I have featured to date, and we are excited to get it under our real-world test system to see how the Signature Platinum holds up at full burn. The Signature platinum comes initially in 1000W and 1300W variants for the platinum model along with offering a titanium certified model in the 1000W range for those looking for that extra few percents of efficiency.

The key features of the Signature Platinum 1300 (or SP1300 as I will call it going forward to simplify things) are listed below:

  • Guaranteed 1300W of continuous power from Antec
  • 100% Modular - Reduce clutter and enhance airflow
  • 80 PLUS Platinum Certified - Up to 92% efficient
  • Phasewave Design - Server class full-bridge LLC design with a synchronous rectification based on a DC-DC topology
  • 10-year warranty
  • 135mm FDB fan - quiet and long lifetime
  • Zero RPM Manager - Zero fan mode under lower loading
  • 99% +12V - Output for maximum GPU and CPU support
  • Circuitshield - Full suite of protection (OCP, OVP, UVP, SCP, OPP, OTP, SIP, NLO)
  • 100% Japanese Capacitors
  • 28 (18+10) pin MBU socket for possible future MBU connection
  • ATX12V 2.4 - Engineered for the latest CPU generation compatibility
  • 40C rated consistent delivery
  • OC Link - Allows two Signature PSUs to work in tandem for demanding extreme applications

Yes, this is a laundry list of features, but for the price point and position in the market, you must expect that every box will be ticked in these sorts of models. One of the exciting features would be the OC Link, which connects compatible supplies so they can start together, allowing for extreme enthusiasts to double the PSU potential by using two units for things such as LN2 benchmarking. Overall I do not see many users employing this feature for a regular or even extreme desktop build as most circuits in North America can push around a 1600W at 115V. A dedicated 20A circuit can push more, but to be realistic, we have to account that most houses are wired with several outlets or devices on the same circuit, so I leave some room for that fall off.

Antec Signature 1300W Platinum Power Supply Review 55 |

The Signature series of PCU from Antec are relatively new additions, and they come with 1000W and 1300W for the Platinum models. The 1300W we have today is a part number of SP1300 US according to the labeling on the outer box, but there is also another model number that traces back to the certification That part number is X8000A506-18, which is a bit more confusing and may only be used for regulatory bodies, but it is worth noting as you will see it listed in the spec chart above.

The 1300W Signature platinum comes in at just 170mm length, which is quite good power density for a smaller PSU. Many of the high-end enthusiast's supplies we have seen push into the 200mm range, which can limit chassis compatibility. Some examples of this would be the EVGA 1300 G2 or the SilverStone ST1300, which is a Titanium unit at 180mm.

The pricing for the new Signature series is as follows.

  • SP1000 - US$ 229.99 (Platinum)
  • SP1300 - US$ 269.99 (Platinum)
  • ST1000 - US$ 279.99 (Titanium)

The unit we are looking at today is the SP1300, and that places it in the 1000W range primarily when compared to other Platinum rated units. For example, the HX1000i is in the $285 range, while the EVGA Supernova 01300 G2 is found at $259.99 but is only a gold-rated unit. The closest we have for comparison of like supplies would be the Seasonic Prime 1300 unit, which is Platinum rated, but it costs 12 dollars more coming in at $282.99. If Antec has a good showing with its new signature series with no major issue, I see no reason why it would not be an applicable performance and value fit in your new build. Now let's dig in and see if it does just that.

Shannon's Power Supply Test System Specifications

Last updated: Apr 14, 2020 at 01:48 pm CDT

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Shannon Robb


Shannon started his PC journey around the age of six in 1989. Now till present day, he has established himself in the overclocking world, spending many years pushing the limits of hardware on LN2. Shannon has worked with design and R&D on various components, including PC systems and chassis, to optimize the layout and performance for enthusiasts.

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