Exploring Thunderbolt 3 eGFX Performance, Feat. PowerColor’s Gaming Station & Radeon RX Vega 56 Nano

See the original posting on Anandtech

Thunderbolt 3 has enabled a number of interesting use-cases that were simply not possible with earlier high-speed external interfaces. The technology allows for four lanes of PCIe 3.0 to become available over a USB Type-C interface, which can be further combined with power, DisplayPort video, and other forms of data. As a result, one of the most prominent use-cases for Thunderbolt 3 has been using it to attach an external GPU. DIY enthusiasts have previously tried this with Thunderbolt 2 enclosures, but, there was no official support from the vendors. This changed with Thunderbolt 3 and the creation of an official eGFX standard.

These days, a number of eGFX enclosures are already available in the market. For today’s review we’re taking a look at PowerColor’s Gaming Station eGFX enclosure and their Radeon RX Vega 56 Nano GPU. Along with looking at the eGFX setup itself, we’re also using the chance to take a look at identifying how the performance of the same eGFX solution can vary across systems with different capabilities, to give us an idea of how much the host system influences performance versus GPU or bandwidth bottlenecks.