The Lenovo ThinkPad T490 is compatible with external graphics processing units (eGPUs) via its Thunderbolt 3 port. Users have reported successful setups where an eGPU is connected, especially when paired with an external monitor to enhance performance. For instance, a Reddit thread confirms that the T490 supports eGPUs and can deliver good performance here.

Furthermore, a detailed build shared on eGPU.io discusses the use of the T490 with an RTX 4060 GPU, which demonstrates that it can effectively manage high-performance graphics tasks through specific adapter setups link.

However, some discussions on platforms like Ars Technica reveal potential issues such as overheating of the Thunderbolt 3 cable and eGPU shutdowns, which indicates that while the setup is feasible, monitoring temperature and power usage is important link. Additionally, users considering the purchase of an eGPU for gaming have shared insights into expected performance and compatibility challenges tailored to their T490 setups link.

Overall, the T490 can work with eGPUs, offering an upgrade path for improved graphics performance, although users should be aware of the associated thermal management concerns.

Sources

Does anyone know if the T490 supports an egpu? : r/thinkpad - Reddit2019 14" Lenovo ThinkPad T490s [8th,4C,U] + RTX 4060 ... - eGPU.ioeGPU box and card for Thinkpad T490 and modest gaming?T490 + eGPU = HOT TB3 cable and eGPU shutdown | Ars OpenForumBest Thinkpad for value eGPUEgpu-support-on-thinkpad-3490 - English Community - Lenovo ForumT490 comes with default graphics card(NVIDIA), but discrete ... - Quora

Related Questions

Does Lenovo ThinkPad support eGPU?

Does the Lenovo T490 have Thunderbolt?

Is Lenovo T490 upgradable?

Can you put a GPU in a ThinkPad?