We highlight VRM temperatures when using each cooler on our Gigabyte B550 Aorus Master motherboard with the overclocked Ryzen 9 5950X. Do note that the results are heavily influenced by the specific layout of the Gigabyte B550 Aorus Master test motherboard with respect to top-side or rear IO-side VRM components. Your findings may vary if you have a different motherboard VRM layout and heatsink design.
VRM cooling proficiency was also positive. This is an interesting one, as the larger dimension fans of the competing 135mm coolers should provide greater incidental airflow to the motherboard VRM heatsink. But the SilentiumPC Fera 5 Dual still managed to match the VRM cooling performance shown.
Perhaps that extra 120mm fan helps just as much as the oversized 135mm diameter alternative.