With a stated 3,000 W, the ROG Thor Titanium III Edition 20 far exceeds our build’s needs, even with an RTX 5090. We chose it to complete our PC dedicated to ROG’s 20th anniversary. In use, we most appreciated its sleeved cables, easy installation and semi-passive operation.
Our test conditions
Our partner Absolute PC purchased this unit. We installed it in the ROG GR20 Edition 20 with the Crosshair X870E Edition 20, a Ryzen 9 9950X3D2 and the ROG Astral GeForce RTX 5090 Edition 20. We used only the supplied cables and kept semi-passive mode throughout testing.
This article covers our unboxing, installation and usage experience. We did not perform electrical measurements on a load bench, so efficiency and voltage regulation are not evaluated here.
Cables that immediately catch the eye
The sleeved cables in the anniversary collection’s colours were the first thing to catch our eye. We appreciate this finish extending to the connections, even though we later hid most of the cable lengths in the GR20.
The PSU itself is massive, and its finish seemed flawless. It delivers the build quality we like in ROG Thor units and makes an excellent first impression in the hand.
A particularly easy installation
Despite its size, installation in the GR20 was extremely easy. We had no particular difficulty positioning the PSU or connecting the cables.
The cables are long and flexible enough to route easily. We could put them where we wanted and stow excess length neatly. That is a real benefit during assembly, especially in a build where appearance matters so much.
A screen you can put on display
ASUS supplies a detachable magnetic OLED screen with an extension cable for remote placement [1]. We used this to put it at the front of the GR20, where it remained clearly visible.
Placement is very simple. Cable length, attachment and readability all suited us perfectly. In our setup, the screen displayed power in watts in real time.
We did not find it especially useful for conducting our tests, but seeing that figure at a glance is pleasant. We did not use it as a power-consumption measurement in the motherboard or graphics-card reviews.
Far more power than we need
The Thor is rated for 3,000 W on 220–240 V mains, versus 1,600 W at 115 V. ASUS states 80 PLUS Titanium certification and ATX 3.1 and PCIe 5.1 compliance [1]. The 3,000 W figure is its maximum capacity, not the PC’s constant consumption.
It also includes the ROG Equalizer 12V-2x6 cable. ASUS presents it as a way to distribute current more evenly among the graphics-card power cable’s conductors [1]. We did not specifically measure this feature.
For our single-RTX 5090 PC, this capacity is vastly oversized. Professional multi-GPU systems may have different needs, but we chose it mainly to bring the Edition 20 components together.
A fan that stayed off during our observations
We used semi-passive mode. During our sessions, including games, we did not observe the fan starting. We particularly appreciated this in a PC with exposed components.
ASUS provides fan-stop operation at low loads, also accounting for cooling needed after heavy use [1]. Our observation applies to the configuration and workloads used in this test.
We had no shutdowns or restarts during games or benchmarks. Operation was trouble-free.
Key takeaways
At around €1,000 during our test, this Thor remains very expensive. Given its stated 3,000 W capacity, Titanium certification and elaborate special-edition design, though, the price seems understandable.
We had also tried the ASUS Pro WS 3000W Platinum [2], priced around €650 during that earlier test, and found it noisy in use. The Thor was much quieter in our configuration, its fan remaining off during our observations. This is a subjective comparison, not one based on a shared acoustic protocol.
Flexible, neatly finished cables, easy installation and a remotely placeable screen make this PSU pleasant to use. It fits our Edition 20 PC well. For a single-GPU gaming build, however, we see no reason to aim for this much power. Here, the choice is also about the enjoyment of building the complete collection.