Epilogue
The GEX X2 850W achieves decent performance but doesn’t fare as well as the GEX X2 1000W in the respective category. I noticed the high deviation at 12V load regulation between the units mentioned above, which affects, to a degree, overall performance. Moreover, the GEX X2 850’s price is close to competing units, including the Thermaltake GF3 850W, but the latter achieves slightly lower overall performance and is noisier, too. A more extended warranty supports the GF3 850, ten years instead of seven, that Cougar provides to its X2 models. Still, you cannot call short any warranty exceeding five years!
It is always good to see more ATX v3.0 platforms from other OEMs than the usual ones. XHY has potential, and I would like to see more designs from this OEM. Moreover, it is an intelligent move from Cougar to utilize other OEMs and not stick to HEC, which is its mother company. HEC is highly experienced in budget and mid-end platforms but still cannot compete in high-end designs OEMs like Seasonic, CWT, and Great Wall.
To check all alternative PSU offerings, read my Best ATX v3.0 PSUs article before investing in a new power supply. You help me a lot by using my affiliate links, which don’t increase the product’s price. I get a commission from Amazon every time you do it, which can make a difference for me, especially now that I am on my own, working exclusively for my media and not for someone else.
- Delivered full power at 47°C
- Satisfactory overall performance
- ATX v3.0 and PCIe 5.0 ready
- Decent transient response at 12V in normal scenarios
- Efficient
- Silent operation
- Decent ripple suppression
- Highly efficient 5VSB rail
- Long hold-up time
- Long and accurate power ok signal
- Low vampire power at 115V
- Alternative Low Power Mode (ALPM) compatible
- Fully modular
- 12VHPWR connector (450W)
- Seven-year warranty
- Not tight load regulation at 12V
- Protection features need more tuning
- Mediocre transient response on the minor rails
- The 12V rail’s voltage drops low in the 200% transient response test
- Low Power Factor (PF) readings
- Increased inrush current at 115V
- Efficiency could be higher at light loads and 115V input
- Small distance (115mm) between peripheral connectors
- Only two 4-pin Molex connectors