Technology and gaming content trusted in North America and globally since 1999
8,618 Reviews & Articles | 61,064 News Posts

Antec Signature 1300W Platinum Power Supply Review (Page 5)

Shannon Robb | Mar 30, 2020 at 9:10 am CDT - 1 min, 55 secs time to read this page
Rating: 98%Manufacturer: AntecModel: X8000A506-18

Real World Test System & Observations


We started testing on the SP1300 with the single GPU as we usually do. One note is we tweaked the 2990WX CPU for an all-core overclock to pull more AMPS/Watts. Here you can see that the SP1300 barely even gets warm (33C) at 762W pull. Let's add another GPU and see what shakes.

Antec Signature 1300W Platinum Power Supply Review 20 |

Putting a 2080 Ti in with the TITAN V helped raise the load a fair bit with 1000W now a reality. As you can see, the PSU is now hitting up to 44C, and the PSU fan is not even audible. I guess its time to stack it further.

Antec Signature 1300W Platinum Power Supply Review 21 |

Adding a custom 2080 Ti from ASUS jumps our power pull to 1270-1300 Watt range. The fan is still not audible over the other components, but it is starting to move now. If I place my ear up to it, I can hear it. The sustained load after two hours was fully stable, and completing work units with no errors. While I'm a bit apprehensive about adding more, I think its necessary, you know, for science.

Antec Signature 1300W Platinum Power Supply Review 22 |

Well, things are getting a bit messy now as I installed a 1080 Ti in place of where the 2080 Ti was so that I could ensure the 2080 Ti could breathe and vent properly. The Zenith Extreme alpha does not have dual slot spacing for all slots, so we rigged up a riser for the GPU so that we could fit four. We now see an average draw of over 1400W with peaks into the 1470 range during workloads. The PSU leveled out at 46C, and the fan ramped a bit more. The PSU chassis itself started to get warm as well, but it did not falter or error any work units for several hours running.

I do want to add as a word of note that I would never recommend running a PSU to this level consistently, and would recommend splitting load to ensure you do not overload or lower the lifespan and stability of your PSU or other components. However, it is quite the accomplishment that the Antec unit can draw more than its rated spec and even keep itself under 50C, which some PSUs fail to do below their rated capacity.

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

Buy at Amazon

Antec Earthwatts Gold Pro Series EA550G Pro 550W

TodayYesterday7 days ago30 days ago
Buy at Amazon
* Prices last scanned on 6/2/2020 at 10:24 pm CDT - prices may not be accurate, click links above for the latest price. We may earn an affiliate commission.
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.

We openly invite the companies who provide us with review samples / who are mentioned or discussed to express their opinion. If any company representative wishes to respond, we will publish the response here. Please contact us if you wish to respond.

Related Tags