Samsung gives Qualcomm until mid-October to fix Galaxy S27 Ultra chip heat or consider Exynos

Seoul Economic Daily built the report on unnamed industry sources who spoke on the 16th ^[5], so everything below carries that limit. The chip is Qualcomm's top-end part, unveiled last month ^[12], and Samsung had test results to hand back within the same month ^[17]. One industry official put the current position this way: "Both sides are working to resolve the overheating issue" ^[3].

In our view the Snapdragon stays in the Galaxy S27 Ultra more often than not, because the fallback has its own thermal record. The Exynos 2100 in the domestic S21 Ultra drew complaints over heat and performance degradation ^[6], and the report notes that Samsung must weigh heat, power consumption and supply timelines on the Exynos 2700 as well as on the Snapdragon ^[4]. The counter-thesis is not weak, though. An Exynos Ultra would let System LSI raise shipments, let the foundry lift utilization on its 2-nanometer lines and give the mobile experience business room to trim spending on outside processors ^[9].

Money is the second variable. Samsung's spending on mobile application processors was 13.8272 trillion won last year ^[10] against 6.2116 trillion won in 2021 ^[11], a rise of 7.6156 trillion won ^[16], or about 2.2 times ^[15]. That pool is not Qualcomm's alone. The report does not say how much of it goes to Qualcomm, how much the Ultra accounts for, or in which markets an Exynos Ultra would sell.

The market question matters because earlier Exynos Ultras were regional. The Exynos 2200 went into the S22 Ultra sold in Europe, and Qualcomm has supplied the Ultra worldwide since the S23 Ultra in 2023 ^[14]. Exynos also sits in the Korean S26 and S26+ this year, outside the Ultra tier ^[7]. If a return followed the 2022 pattern, Qualcomm would lose some markets on one model and the five-year gap would end ^[8].

The pass mark is sustained load. Throttling cuts operating speeds to protect the device, and the cost shows up in long gaming sessions or AI tasks, not in an instantaneous peak score ^[13]. Samsung is making AI features the core selling point of its next Galaxy phones ^[12], and mass production of the S27 series is set for late this year ^[18].

We would be wrong if Samsung confirms the Exynos 2700 for the Ultra. We would be wrong in a different way if the Snapdragon clears the retest and Samsung switches anyway, since the choice would then sit on the spending lines and not on heat.