Galaxy S25 FE Shows Heavier Throttling Than S24 FE In Early Tests, Despite Similar Hardware
Samsung’s new Galaxy S25 FE arrives with nearly the same on-paper firepower as the Galaxy S24 FE, yet early firmware-based tests suggest it heats up faster and throttles harder under sustained load. That’s surprising, especially since the S25 FE is equipped with a larger vapor chamber designed to improve cooling.
What’s inside each phone is largely the same. Both models use 4nm silicon and share the same GPU, the Samsung Xclipse 940, running at 1,095 MHz. Their CPUs are also nearly identical:
– 4 Cortex-A520 cores at 1.95 GHz
– 3 Cortex-A720 cores at 2.60 GHz
– 2 Cortex-A720 cores at 2.90 GHz
– 1 Cortex-X4 prime core at 3.21 GHz on the S25 FE and 3.11 GHz on the S24 FE
In short, the S25 FE’s prime core has a slightly higher clock speed, but everything else mirrors the S24 FE.
Where the two phones diverge is sustained performance. According to initial testing on early firmware, the Galaxy S25 FE is quick to heat up and pulls back its performance more aggressively during prolonged GPU workloads. In GPU stress tests, it sustains roughly 59% to 66% of peak performance. The Galaxy S24 FE, by comparison, holds closer to 71% to 72% of its peak, suggesting better stability under continuous load.
Two likely explanations stand out:
– Early firmware may be unoptimized and could improve through upcoming software updates.
– The larger vapor chamber may not be performing as intended, limiting heat dissipation in real-world scenarios.
For buyers who care about gaming or long, intensive sessions, sustained GPU performance and thermal management matter just as much as peak speeds. If you’re eyeing the Galaxy S25 FE, it’s worth watching for software updates and additional testing to see whether these early results change over time.
We’ll continue to monitor the situation and share meaningful updates as they become available.
