For most of the 4G years, MediaTek was the chip you got and did not brag about. It powered the phone your carrier handed to your parents, and Qualcomm owned everything anyone actually wanted. Then 5G arrived, and MediaTek did something I did not see coming: it treated the expensive new modem as a way in rather than a tax. The MediaTek Dimensity 5G line is the result, and between 2019 and 2021, it took the company from budget afterthought to shipping more smartphone chips than anyone on earth. I followed the whole climb, mostly in a French explainer series, and here it is in order.

2019: the first 5G SoC, and a name to put on it

MediaTek moved early. In September it shipped its first all-in-one 5G SoC, with CPU, GPU, APU and modem on a single die while Qualcomm was still selling 5G as a separate modem you bolted on. By November the strategy had a brand: the Dimensity 1000 was the flagship that gave the whole line its name, and I went digging into what it actually cost the integrators, because the price is the entire pitch. The first real customer signal came from Redmi, which had already leaned on MediaTek for the Note 8 Pro and kept going for its 5G phones. That partnership is the one that mattered, because Xiaomi’s budget arm could put Dimensity in front of millions of buyers overnight.

2020: a full stack, not a hero chip

This is the year MediaTek did the unglamorous work of filling a range. The 720 fleshed out the middle, the Dimensity 800U sat above it, and the Dimensity 700 dragged 5G down to properly cheap phones. MediaTek lined up the Dimensity series to power a wave of devices and put its name on the first MediaTek-powered 5G smartphone. It also looked past phones, with an Intel partnership aimed at 5G laptops, a T750 chip for fixed-wireless routers, and the flashy stunt of the first public test of 5G over satellite. None of it was a single hero chip. That was the point: Qualcomm sold the crown, MediaTek sold the whole shelf.

2021: going up-market

By 2021 MediaTek wanted the part of the market it had never owned, the top. I broke the lineup down in a run of posts, starting with Part 0 of the Dimensity tech explainer and working through the 8-series mid-range, the 1100 and 1200 at the high end, and the 7-series, before the M80, its first mmWave-capable 5G modem and the Dimensity 900 closed it out, with a Kompanio 1300T detour into tablets. I called it the year MediaTek broke through on the strength of the Dimensity 1200, and the receipts kept coming: MediaTek detailing the M80 modem itself, the 900 built on 6nm, 5G carrier aggregation demoed with Swisscom, Ericsson and Oppo, an open resource architecture to get Dimensity into more designs, and the T750 powering NEC 5G gear. The budget brand was now negotiating with carriers and infrastructure names as a peer.

Beyond phones: edge AI and the living room

The Dimensity story gets the attention, but MediaTek was quietly pushing AI silicon into places that were not phones at all. In 2020 it introduced the i350 edge AI platform, aimed at the always-on, low-power inference that lives in cameras and IoT gear rather than handsets. A year later the MT9638 brought a new era of AI into the 4K smart TV, the chip running upscaling and smart-home features in the living room. Neither made headlines, but together they show MediaTek treating on-device AI as a whole-catalog play, not a flagship-phone gimmick.

The full timeline

Here is the part the spec sheets miss. MediaTek did not beat Qualcomm on the high end, and mostly still has not. What it did was make 5G boring and cheap two years faster than anyone expected, and boring and cheap is how you end up in the most phones. By the end of this stretch, MediaTek was the largest smartphone chip vendor by volume, and it got there by selling the thing Qualcomm treated as a premium feature to people who were never going to pay premium prices. The crown stayed in San Diego. The shelf went to Taiwan.

Also from this era, beyond the Dimensity phones

The Dimensity phones took the headlines, but MediaTek spent 2020 and 2021 spreading into everything around them: connectivity silicon, IoT and AIoT, laptop and TV chips, and a run of carrier and test-house partnerships.

Two decades of MediaTek, oldest to newest: Turnkey Empire (2006-2015) · Helio Years (2015-2019) · Dimensity 5G (2019-2021) · Flagship Assault (2022-2023) · The AI Turn (2024-2026)