Closer Look
The interior of the VITA GM 1kW PSU reminds me of the Hydro G Pro 1kW I reviewed over a year ago. The layout is not much different, but there are also some minor changes. The power delivery, main capacitors, and most other components are without significant changes.
Everything inside is clean, the soldering is good, and we can compare it to other, higher FSP PSU series. The whole design suggests there were no problems with overheating any component. Still, as I mentioned earlier, we had a good experience with the Hydro G Pro 1kW unit, so we don’t expect any problems with the VITA GM, either.
All the visible capacitors are rated at 100°C or more. Many, if not all, are Japanese, as we can see from the main features. The single main capacitor is made by Nippon Chemi-Con. We also see Rubycon capacitors in other FSP PSUs. Either way, we get the best components, so there is nothing to worry about. The capacitor is rated at 450V, 680uF, and 105°C, which is precisely the same as in the Hydro G Pro 1kW PSU.
Considering what we see inside, it’s a pretty good option for gamers and overclockers. The mentioned Hydro G Pro PSU has been in constant use for over a year, and there are no issues, so the VITA GM is expected to be not worse.
The VITA GM lacks a semi-passive cooling option, but we shouldn’t hear it until 30%, when the passive cooling switches into active on the higher FSP PSU series.
The VITA GM 1kW uses a hydraulic-bearing Yate Loon D12SH-12 fan rated at 12V 0.30A. The fan measures 120x120x25mm and is designed for up to 2200 RPM. At the maximum speed, it has an airflow of 88CFM, but based on the FSP specifications, it shouldn’t even reach 1000RPM.
The generated noise is about as high as in the FSP specifications, but we also couldn’t load the PSU to 100% using popular components and couldn’t register more than 33dB (measured from 1m). The typical home noise during the day is around 35dB, and the office is even higher, so it’s hard to separate the PSU noise from the ambient noise.
Performance
Tests were performed on the Intel platform, containing the overclocked i9 14900K CPU, ASUS Z790 APEX motherboard, overclocked Colorful RTX4080 Advanced OC graphics card, and additional components to bump the wattage. The peak wattage is around 850W.
All results were performed on a PC with an open case and idle temperature of around 24-25°C.
There were no stability issues during all tests. The VITA GM’s efficiency is exceptional, but it was expected after the Hydro G Pro review.
The +12V voltage was nearly perfect in mixed load tests and while gaming. Other voltages are less important on new computers, as most devices use only the 12V rail. The PSU also uses a single 12V rail design, which is already standard in the high PSU series. It’s optimal for new, power-hungry graphics cards.
All the results seem just right for the 80 PLUS Gold certification.
The PSU was silent during idle and mixed load tests. As I mentioned earlier, the fan was barely audible under full load. It’s one more FSP PSU that doesn’t make problems with the noise.
The mixed load test will be the closest to the daily usage, which is about what we can expect while playing less demanding games or some more demanding office tasks. During this work, the PSU is just perfect. It’s quiet and delivers stable voltages.
During the high-load tests, there were no problems with voltage ripple. The +12V rail was around 11.91-11.95V, so it was within the specifications. The PSU was acting about the same as FSP or competitive brand top series. It’s nice that FSP keeps the top performance in the lower PSU series.
The PSU is designed to work with the latest graphics cards from Nvidia and AMD. The new Nvidia graphics cards use 12VHPWR or 12V-2×6 standards. The VITA GM officially supports 12V-2×6 but is backward compatible with 12VHPWR. The power connector will probably remain the same in the Nvidia RTX5000 series.
The VITA GM offers the same optimal performance as the higher series FSP PSUs with an 80+ Gold certificate but is expected to be more affordable.
