Image: Seasonic / Montage: Sven Bauduin

Seasonic has presented the two new top models in the Prime TX and Prime PX series with 1,600 watts and two 12VHPWR plugs . With this, the manufacturer is already taking into account the probable development of the power loss of future graphics cards. AMD’s RDNA 3 and Nvidia’s Ada are said to be thirsty.

Seasonic is expanding its portfolio of high-end power supplies with 80Plus Platinum and Titanium certification to include two new top models with 1,600 watts and, with two 12VHPWR connectors, is already serving the upcoming AMD Radeon RX 7000 and Nvidia GeForce RTX 4000 graphics card series will face the duel for the GPU throne by the end of the year at the latest. However, Intel’s first dedicated graphics card generation , the Alchemist , is not yet ready for a real three-way battle.

Seasonic Prime PX-1600 (Image: Seasonic)

Stronger power supplies for even more power loss

Which of the sometimes wild speculations in the rumor mill, which give the hybrid “chiplet GPUs” based on RDNA 3 and the monolithic Ada graphics processors strongly fluctuating TDP and TGP ratings of 450 to 900 watts almost every week, will really be correct , remains to be seen – but it is no longer a secret that the peak power consumption will increase significantly again.

    Full feature set and lots of accessories

    The two power supply units of the Prime PX and Prime TX series are prepared for the general conditions to be expected from the upcoming graphics cards and offer the following specifications:

    Seasonic Prime TX and PX 1600
    • 1,600 watts
    • Intel ATX 12V
    • 80Plus Titanium
      80Plus Platinum
    • 135mm hybrid fan
    • 210 × 150 × 86mm (L × W × H)
    • An MTBF of
      • 150,000 hours (power supply)
      • 50,000 hours (fan)
    • 12 year manufacturer guarantee

    The Prime TX-1600 and Prime PX-1600 each deliver 25A (125W) on the 3.3V and 5V rails and 133.3A for the 12V rail. Both models come with a variety of different connection cables, including two PCIe 5.0 alias 12VHPWR.

    Seasonic Prime PX-1600 (Image: Seasonic)

    Both power supplies are designed to be fully modular and are already commercially available. The Seasonic Prime TX-1600 is offered at a price of 509 euros , while the Prime PX-1600 is currently being asked for 397 euros . The two product pages of the Prime TX-1600 and Prime PX-1600 as well as the official specifications of the two power supplies provide further information .