Thermaltake ToughPower GF A3 ATX 3.0

The Thermaltake Toughpower GF A3 650W is the lowest capacity ATX v3.0 and PCIe 5.0 compatible PSU that I have evaluated so far. This means that it can deliver double its power for short periods (0.1ms) through its 12VHPWR cable, which is set at 300W max power output.

Big power often comes at a big price, but I think Thermaltake has been pretty realistic with their cost saving here, trimming back in a few places but still keeping their investment in the most important aspects of the PSU aesthetics and component options. It’s well made, and while there is room for some minor improvements, they would again just push the price up. If you need big power without spending big bucks, this is the way to go. If you didn’t want a little more power and efficiency, the next step up is the PF3 1200W, and that’s around £100 more expensive, making the GF A3 look like a pretty sweet deal.

The Thermaltake Toughpower GF A3 850W is an ATX v3.0 and PCIe 5.o compatible unit, featuring a 12VHPWR connector that is set at 450W, which is enough for most modern GPUs. Its footprint is small, thanks to the 140mm depth, so you won’t have a tough time during installation. The fully modular design will help there, too.

The Thermaltake Toughpower GF A3 750W is an ATX v3.0 and PCIe 5.o compatible unit, featuring a 12VHPWR connector that is set at 300W, which is enough for mid-range graphics cards. Its footprint is small, thanks to the 140mm depth, and along with the fully modular design, will be of great assistance during installation.

In conclusion, the Thermaltake Toughpower GF A3 presents itself as a robust contender in the PC power supply market, offering a judicious blend of performance, quality, and aesthetics. The build quality is commendable, featuring a premium all-black exterior, fully modular cables, and high-grade Japanese APFC capacitors. The secondary capacitors from CapXon also maintain a high standard. However, it's worth noting that the active components from lesser-known Chinese manufacturers raise a modicum of concern due to the lack of publicly accessible datasheets. From an electrical engineering standpoint, the power quality stands out. The unit adheres to the ATX 3.0 design guide requirements and showcases praiseworthy voltage filtering capabilities, ensuring voltage ripple values below 30 mV even under significant stress. While the voltage output is marginally high, it stays within acceptable limits. The unit ostensibly meets 80Plus Gold energy conversion efficiency requirements at an input voltage of 115VAC, although formal certification for this model remains unpublished. Thermal performance is one area where compromises have been made, seemingly to prioritize low-noise operation. While the unit runs at high operating temperatures, there is minimal evidence of thermal stress, which attests to its well-engineered design. Noise levels remain impressively low, making the PSU a viable option for those who require a quiet working environment. However, this comes at the cost of elevated thermal readings, primarily due to the small and slow fan. The Thermaltake Toughpower GF A3 offers a fair proposition in terms of overall value. Priced at $91 on Amazon, the PSU provides an attractive quality, performance, and aesthetic appeal package. It suits mid-range gaming systems and workstations well but is in a fiercely competitive market segment. Thermaltake's own advanced PSU series, which is priced only slightly higher, serves as formidable competition. In summary, this unit is a persuasive option that offers a balanced blend of key performance attributes, making it a viable choice for those seeking a quality, efficient, and relatively quiet power supply unit. A slightly lower retail price would tremendously help the Toughpower GF A3 find its rightful place in the market.