Samsung may put an in-house Exynos processor back inside its top-tier phone for the first time in five years. Internal testing inside the company's Mobile eXperience division revealed that Qualcomm's upcoming Snapdragon 8 Elite Extreme Gen 6 is running into severe thermal ceilings, according to industry sources cited by the Seoul Economic Daily. During sustained heavy workloads, the processor repeatedly exceeded temperature thresholds and throttled clock speeds, prompting Samsung to prepare its own Exynos 2700 as an emergency substitute for the Galaxy S27 Ultra.
The timing puts Qualcomm on a tight leash. Samsung shared its benchmark findings last month and set a mid-October deadline for Qualcomm to bring operating temperatures under control. Component choices have to be finalized this month because mass assembly for the Galaxy S27 family begins late this year. If Qualcomm cannot tame the heat in time, Samsung plans to pivot the Ultra to the Exynos 2700, built on Samsung Foundry's second-generation 2nm process node. That would mark the first Ultra handset to carry proprietary silicon since 2022.
Qualcomm engineered the Snapdragon 8 Elite Extreme Gen 6 around local multi-step computing, building out CPU and GPU blocks to run autonomous on-device tasks without cloud assistance. Those workloads generate intense heat. When a mobile processor hits its thermal limit during long gaming sessions or video capture, it drops clocks to protect internal components. That throttling directly compromises performance. Samsung's System LSI group developed the Exynos 2700 on the SF2P node to prioritize power efficiency and sustained throughput, and while Qualcomm remains in contention, the clock is running down.
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