Box & Bundle
The box is enormous since it contains one of the largest PSUs in today’s market. The rich bundle includes cable combs, an ATX jump-start plug, a case badge, zip ties, Velcro straps, and fixing bolts. Shame that there is no Cybenetics badge on the box, but Seasonic certified them late. Almost everything passes the 80 PLUS tests, but this is not the case in Cybenetics testing. Moreover, the Cybenetics reports are the only ones including ATX v3.0 compatibility.
Product Photos
The silver parts of the fan grille, extending to the sides, provide a luxury note. The vents on the sides remind me of a sports car, assisting in the nice looks. Although this is a huge PSU, its design makes it look appealing and does not frighten the users that will have to fight with its increased weight and footprint to install it into the chassis.
Cables
| Modular Cables | ||||
| Description | Cable Count | Connector Count (Total) | Gauge | In Cable Capacitors |
|---|---|---|---|---|
| ATX connector 20+4 pin (620mm) | 1 | 1 | 16-18AWG | No |
| 4+4 pin EPS12V (700mm) | 3 | 3 | 16AWG | No |
| 6+2 pin PCIe (760mm) | 6 | 6 | 16AWG | No |
| 12+4 pin PCIe (750mm) (600W) | 2 | 2 | 16-28AWG | No |
| SATA (510mm+155mm+155mm+155mm) | 4 | 16 | 18AWG | No |
| SATA (410mm+150mm) | 1 | 2 | 18AWG | No |
| 4-pin Molex (460mm+125mm+125mm) | 1 | 3 | 18AWG | No |
| AC Power Cord (1360mm) – C19 coupler | 1 | 1 | 16AWG | – |
Three EPS, six 6+2 PCIe, and two 12VHPWR connectors on dedicated cables are enough to deliver way more than this unit’s capacity. Seasonic covers every usage scenario with its vast amount of cables and connectors, with the only exception being the three 4-pin Molex. An additional connector of this type would be ideal.
With 18 SATA connectors available, you can build the server of your dreams; if this is what you want to do, of course. Lastly, the pair of 12VHPWR connectors is overkill, even for a 1600W PSU.
Thanks, super useful stuff. Where did the XPG Fusion 1600 results come from? Have you tested that one as well?
From the Cybenetics database 🙂
Saw some conflicting information on the net, so I wanted to ask the expert. Are the 12vhpwr connectors on this PSU capable of outputting the full 600 watts? I know the 12vhpwr cable itself supports 600 watts (melting issues aside), but I saw some forums stating the PSU only outputs 450 from the connectors. For context, I have Gigabyte 4090 Gaming OC which has a power limit of 600 watts, so I want to make sure I pick a PSU that can feed it if I decide to tinker with overclocking. Thanks.
Yes they are. Also please note that according to my measurements, 450W vs 600W on an RTX 4090 doesn’t provide anything significant on performance perspective.
I found it in the US and ordered from Newegg today!
No I didn’t. I accidentally ordered the Platinum. Newegg only has the 1300 Titanium.
Now I for real found this available in the US on Amazon.
Hello, this might be a dumb question, but this PSU isn’t available as of now (14th June 2023), is it? I looked all over Seasonic’s website and all I can find is a ATX 2.5 TX-1600 PSU, which is not ATX 3.0 and therefore PCI Gen 5 ready.
Hi! Nope, it is not out yet. Seasonic told me after Computex would release it to the market.
There are reddit rumors that some guy contacted them and they informed him about an ATX 3.1 version coming sooner or later so maybe we will never see the ATX 3.0 en masse in the EU.
Excuse my ignorance but i can’t understand one point. How can transient response reach %200 load, when OPP or OCP set to %130?
It is for a very short period, passing under OPP’s and OCP’s radar.
Great review. Any information on when this will be available in Europe or US? Can’t seem find it on Seasonics site either.
No ideal when they will bring it to the EU, sorry. I guess after Computex.
I find it funny that every time it appears that analog PSU tech is dead Seasonic says “hold my beer.” I don’t remember which PSU review it was for on Tomshardware, but you said that to hit ATX 3.0 specs you figured Seasonic would need to go digital. They now have two ATX 3.0 PSUs that are still analog and are some of the best in their class.
They did pretty well yes. Seasonic’s engineers don’t stop to push the analog technology high. Basically I was saying digital not for ATX v3.0, but for totem-pole and efficiency because to achieve even higher than Titanium, you definitely need totem-pole and by that time only through digital you could control such a PFC converter.
Perhaps it would be useful to include a dummy result on each chart representing the next Cybenetics efficiency rating up from what Cybenetics rate the reviewed PSU at (and also the minimum spec for the actual rating of the PSU).
For example:
Average Efficiency
115V AC Input (Higher is better)
Silverstone DA1650-G: 89.27%
Corsair HX1500i: 89.52%
Thermaltake Toughpower GF3 1650W: 89.76%
> [Cybenetics Titanium PSU min. spec.]: 91%
be quiet! Dark Power Pro 12 1500W: 91.04%
Thermaltake Toughpower TF1 1550W: 91.05%
EVGA SuperNOVA 1600 T2: 91.35%
ASUS RoG Thor 1600W: 91.73%
XPG Fusion 1600W: 91.97%
Corsair AX1600i: 92.22%
Seasonic Prime TX-1600 (ATX 3.0): 92.27%
Wentai Aidan – T616: 92.71%
> [Hypothetical Cybenetics Diamond PSU]: => 93%
This is a good idea!!