https://wccftech.com/mindfactory-report-amd-gpus-fail-more-often-than-those-from-nvidia/

One of the most popular statistical sources for AMD fans, german retailer Mindfactory.de has reported RMA statistics and it turns out they saw a higher failure rate for AMD Radeon 5000 series GPUs than NVIDIA Turing parts. This is a very large data set of roughly 44,000 AMD GPUs and 76,000 NVIDIA GPUs. It is very likely statistically significant although you should always be mindful when extrapolating trends from a single data source (that applied before and it applies now as well).

Interestingly, most of AMD's bad luck seems to be skewed by PowerColor failures. While for other vendors making AMD RX 5700 GPUs, the failure rate hovers between 2-4% just like NVIDIA, PowerColor breaks from the trendline at a whopping 6% failure rate - which almost no other vendor has. The GPU SKU with the worst failure rate is also a PowerColor based design of the RX 5700 XT.