A 2.5GbE switch does not improve 1440p gaming merely because the display resolution is higher. It becomes worthwhile when the local network regularly moves data faster than gigabit Ethernet, such as large transfers to a capable NAS or several multi-gig devices sharing the same link.
Find the actual network bottleneck
The verified facts do not contain a confirmed 2.5GbE-switch model or price. Check current Evetech availability for port count, uplink design, management features, cooling, power supply, warranty and the exact speed supported by every port. The computer, router, NAS and cabling must also support the faster link.
Run a wired gaming test and measure latency, packet loss and connection stability. Then copy a large file between local devices and observe whether gigabit networking is saturated. Faster switching can reduce local transfer time, but it cannot make the internet service exceed its own speed or repair congestion outside the home.
Check motherboard network capability before adding an adapter, and confirm that existing cable runs negotiate reliably at the target rate. A basic gigabit switch remains enough for many gaming setups. Choose multi-gig equipment when local transfers repeatedly hit the present limit or a planned storage workflow needs it, not as a resolution accessory for the monitor in normal daily play.
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