Grab this gigantic, 1600W 80+ Platinum power supply for just 33 cents per watt — Seasonic's Prime TX 1600W is down to just $532
Source: Tom’s Hardware

Image credit: Seasond / Future
While CPUs and GPUs often take the front seat as the most important components in a gaming PC, the power supply fueling the system is just as crucial. If you’re rocking a high‑end build, a good PSU can be the deciding factor between your computer running smoothly or catching fire in the middle of an intense session. That’s why it’s best not to cheap out and go for something as reliable as Seasonic’s Prime TX‑1600, which is on sale for just $532.99 on Amazon.
Overview
The Prime TX‑1600 is a 1600 W power supply manufactured by Seasonic itself. Key points:
- 100 % Japanese capacitors
- Fully modular design
- 80 + Titanium certification (the highest efficiency tier)
- PCIe 5.0 compatible and ATX 3.1 ready
- Dual 12 V‑2×6 connectors for the latest Nvidia RTX 50 series and AMD RX 9000 series GPUs
The Prime series in general offers exceptional efficiency, load handling, ripple suppression, and transient response, and the TX‑1600 is no exception. It’s relatively quiet thanks to a 135 mm fluid‑dynamic‑bearing fan with high static pressure, earning an A rating for noise level from Cybernetics. The box includes high‑quality PVC‑embossed cables.
Review Highlights
The original unit launched in 2022, and we gave it a glowing review for its overall excellent performance:
The subsequent Noctua edition still sits in our best PSUs tier list:
- Tier list: Best PSUs (Tom’s Hardware)
Seasonic revised the Prime TX‑1600W platform to be ATX 3.1 compliant in early 2022, with this unit featuring native PCIe 5.0 connectors for the newest GPUs.

Image credit: Tom’s Hardware
Why Upgrade?
If you’re planning to add a high‑end graphics card, a power‑supply upgrade is often necessary. Seasonic is widely regarded as one of the most reliable names in the PSU market, offering a 12‑year warranty on their units. At $532.99, the Prime TX‑1600 provides 1600 W for just 33 cents per watt, making it a compelling deal for enthusiasts seeking top‑tier efficiency and stability.