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Samsung Galaxy S25 Ultra battery life may improve due to better GPU

The Samsung Galaxy S25 Ultra is expected to have a better battery life than its predecessor. However, the improvement is being largely attributed to a better chipset, and not due to Samsung embedding a larger battery in the upcoming flagship smartphone.

Samsung to embed next-gen Snapdragon 8 Gen 4 inside S25 Ultra?

While the Samsung Galaxy S24 Ultra packs the Qualcomm Snapdragon 8 Gen 3, the Galaxy S25 Ultra should have the next-gen Snapdragon 8 Gen 4. Incidentally, neither Samsung nor Qualcomm have officially unveiled the top-end chipset.

Although the Galaxy S25 Ultra may pack the same battery as its predecessor, it may have better battery endurance, a new leak suggests. The latest rumor is allegedly based on internal testing of the flagship chipset from Qualcomm.

The abovementioned Tweet claims to show findings of internal testing data of the Snapdragon 8 Gen 4 SoC. TSMC is producing the chipset using its second-gen 3nm process node (N3E).

The internal testing allegedly shows TSMC has significantly optimized the Snapdragon 8 Gen 4’s GPU (Graphics Processing Unit). In other words, end-users can expect incredible performance from the Adreno 750 GPU.

Will the Samsung Galaxy S25 Ultra have improved battery endurance?

The Samsung S24 Ultra has a 5000mAh battery, which supports 45W wired Fast Charging via USB Type-C. Multiple rumors suggest Samsung will retain the same battery and even charging technology for the upcoming Galaxy S25 Ultra.

Several leaks seem to agree on Samsung not embedding a larger battery. However, the Snapdragon 8 Gen 4 should put it marginally ahead of its predecessor.

The peak performance of the Adreno 750 GPU embedded inside the Snapdragon 8 Gen 4 was reportedly similar to the GPU inside the powerful MediaTek Dimensity 9300 AP. What’s interesting is that Qualcomm managed to get the performance at half the power consumption of the MediaTek chipset.

This data could be extrapolated to mean the Snapdragon 8 Gen 4 SoC could have a much better battery endurance owing to its GPU. Although this would be an improvement, the leaker suggests skipping the upcoming Galaxy S25 Ultra.

It appears that Qualcomm hasn’t managed to significantly improve the Snapdragon 8 Gen 4’s performance. Specifically speaking, the custom Oryon CPU cores manage only a single-digit performance increase compared to the Snapdragon 8 Gen 3 Prime Performance Core. Moreover, some reports suggest smartphones packing this flagship SoC will need larger batteries.