Choosing between Belkin AC 1750 DB and Mi 4A Gigabit?

I am using Mi4A gigabit router (Dual Core Mediatek MT7621), bought it for about $20. I am planning to buy another router for a new location. I am getting a deal of $35 for Belkin AC 1750 DB (single core QCA9558 [Belkin F9K1115 v2]). I don't need usb ports. Seems, I cannot use samba properly for device with just 16MB flash and 128MiB memory running on single core CPU.
In the forum, people mentioned that Qualcomm SoC are better optimized due to driver availability. But mediatek chipsets deriver support has come a long way.
Which one should I go for? Thank you in advance for your responses.

Edit: seems belkin 1700db has 3X3 spatial streams but Mi4A may have 2X2.

The Xiaomi has the more powerful SoC compared with the Belkin. QCA wireless is also more memory hungry than MediaTek's radios.

QCA being 'better optimised' is a thing of the past, back in the 802.11n days when ath9k made waves (and ironically, it wasn't QCA that developed that...). MediaTek is the go-to solution basically for newer WiFi hardware.

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Thank you. I will go for Mi 4A. Been using Mi router for 3 months and its working great.

Flashing the Xiaomis can be a PITA though.

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Actually, i falshed mi 4a easily following online guide.

Assuming the hw in the new one is supported, Xiaomi have a tendency to swap out the components now and then.

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Yes. For the Mi4A gigabit, they changed the flash chip in v2. I am lucky I got the old international version. The seller sent the pretty old stock, dating 08/2021. I thought to go for TPlink, but TP Link seems to be using TP Link chips, heaven know who manufactured those chips

Go for the MI4A. It's quite capable with MTK hw acceleration, just don't put any other services on it - MT7621 is not a powerfull all-purpose SOC. The first generation is the best. On later revisions xiaomi skimped on parts: no shielding on chips, less capacitors on input power filtering. I was using one as a wired router on 1000/500 fiber, and later as dumb AP. If you don't need AX, wireless is decent. On used market it's really cheap device with excellent openwrt support.

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