Summary and conclusion
The overall performance is high for both voltage inputs and not bad for a Gold-certified power supply either:
Thermaltake’s power supply division is committed to providing high-quality and high-performance products, and collaboration with manufacturers such as CWT plays an important role in this. The ToughPower GF3 1200 uses the proven CSZ platform, which is equipped with high-quality components. The performance of this unit was best at 115 V input voltage, and at 230 V input voltage, the power supply came in second in my charts. Most of the power supplies I used for comparison are Platinum power supplies, and one of them is Titanium power supply (be quiet! Dark Power Pro 12), which shows that I chose particularly tough competitors for the GF3 1200. There aren’t many 1200-watt gold power supplies out there, so I had only two choices: either a lower-capacity gold power supply or a similar-capacity platinum power supply, and I opted for the latter.
The lower-capacity GF3 models, 750W and 850W, also successfully passed the relevant tests, but it gets harder for the 1200W model, as it has to go up to 2400W for the 0.1ms transient response test! Considering that the highest power peaks I measured on a low-end Palit RTX 4090 were 700W, the PSU must not be able to handle such high power peaks, so the GF3 1200W won’t have a problem with an RTX 4090 even if you were to raise the power limit to 600W.Especially since this power supply is very efficient in the low load range and only gets noisy at higher loads. a street price of 250 Euros is definitely justified here.
Nevertheless, NVIDIA will raise the bar even higher and will soon ask PSU manufacturers to tune their platforms for power spikes of up to 235%! Either NVIDIA knows something I don’t, or it’s preparing the ground for the next generation of GPUs. Either way, 200% power peaks were already crazy and now the bar is being raised even higher in secret (so far)!
| Per | Contra |
| Full power at 47°C High total power Top build quality Properly adjusted OCP at 12V and OPP 12VHPWR connection (600W) Good transient response Excellent ripple rejection High efficiency at light loads High PF at 230V Low vamp power Long holdup time Low inrush currents at 115V ALPM support FDB fan Fully modular 10 year warranty |
Noise at high loads Load regulation at 12V and 3.3V exceeds 1% deviation High OCP on the side rails High inrush current at 230V |
Many thanks to Aris, whose data I am allowed to use in the future and will do so, if readers want such network tests. Today’s article is once again a gauge of whether this topic resonates with you. And I also specifically chose this power supply this time because I had it myself in practical use with an NVIDIA RTX 4090 FE cranked up to 600 watts. From this point of view, the price of 250 Euros on average is really okay.
- 1 - Introduction, technical data and test report
- 2 - Unboxing, cables and protection circuits
- 3 - Teardown: topology, components, workmanship
- 4 - Load Regulation, Ripple Suppression, Transient Resonse
- 5 - Hold-Up Time, Timings, Inrush-Current
- 6 - Average Efficiency and PF
- 7 - Noise and fan
- 8 - ´Summary and conclusion
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