The Galaxy S26 Ultra has been benchmarked in the wild — and two of the three numbers are exactly what Samsung needed. A production unit posted by tipster Sahil Karoul on X shows an AnTuTu score of 3,720,219, Geekbench 6 single-core of 3,648 and multi-core of 10,898, and a 3DMark Wild Life Extreme Stress Test stability of 53.2% with a 34°C–44°C temperature range. That last result is the headline: the S25 Ultra hit 70% stability but ran nearly 20°C hotter under the same test — meaning the S26 Ultra is running cooler in sustained load despite the more powerful chip.

Galaxy S26 Ultra vs S25 Ultra: Benchmark Comparison

The Snapdragon 8 Elite Gen 5 for Galaxy is a custom Samsung-tuned version with prime cores overclocked to 4.74GHz — higher than the standard chip used by other Android flagships.

Benchmark	Galaxy S26 Ultra	Galaxy S25 Ultra	Change
AnTuTu	3,720,219	2,441,258	+52%
Geekbench 6 Single-Core	3,648	3,057	+19%
Geekbench 6 Multi-Core	10,898	9,846	+11%
3DMark WLE Stability	53.2%	~70%	Lower stability
Peak Temperature (3DMark)	44°C	~63°C	19°C cooler
Temperature Rise	34°C → 44°C (+10°C)	~43°C → 63°C (+20°C)	Half the rise
Chipset	Snapdragon 8 Elite Gen 5 for Galaxy	Snapdragon 8 Elite for Galaxy	Gen bump
Prime Core Clock	4.74GHz (×2)	4.47GHz (×2)	+6%
Perf Core Clock	3.63GHz (×6)	3.53GHz (×6)	+3%
GPU	Adreno 840	Adreno 830	One generation
Cooling	Larger vapor chamber (confirmed)	Standard vapor chamber	Bigger
RAM	Up to 16GB	Up to 12GB	+4GB top tier

What 53.2% Stability Actually Means

The 3DMark stability number looks worse on paper — the S25 Ultra’s 70% is a higher percentage. But stability in this context measures how consistently the device maintains peak GPU output across the full stress test. A lower stability with a much lower temperature tells a different story: the S26 Ultra’s Adreno 840 is being allowed to push higher GPU frames early in the test, which then drops more as thermals accumulate — but it’s doing all of this at 44°C peak, not 63°C.

The practical implication: in 15–20 minute gaming sessions, the S26 Ultra runs meaningfully cooler and more comfortably in hand. The larger vapor chamber Samsung confirmed is doing real work — halving the temperature rise from 20°C delta to 10°C delta is a significant engineering achievement given the prime cores are running 6% faster than the S25 Ultra’s.

The AnTuTu jump of 52% over the S25 Ultra is the biggest single-generation gain in the Galaxy S Ultra line in at least three years. The multi-core Geekbench crossing 10,000 for the first time in Galaxy history is a milestone Samsung will lean into heavily in its Unpacked marketing.

The one caveat: these are pre-launch results from a production unit sold early at a Dubai retail store. Software optimisation isn’t final, and launch-day One UI 8.5 tuning could shift any of these numbers in either direction.

Check our Samsung Galaxy S26 Ultra India review on TechnoSports and our Snapdragon 8 Elite Gen 5 vs Dimensity 9400 performance comparison.

FAQs

What are the Galaxy S26 Ultra AnTuTu and Geekbench scores?

The Galaxy S26 Ultra scored 3,720,219 on AnTuTu — up 52% from the S25 Ultra — and 3,648 single-core / 10,898 multi-core on Geekbench 6, the first Samsung Ultra to cross 10,000 multi-core.

Has Samsung fixed the Galaxy S26 Ultra thermal throttling problem?

Yes — the S26 Ultra peaks at 44°C during sustained GPU load, versus ~63°C on the S25 Ultra under the same test, a 19°C improvement attributed to a larger confirmed vapor chamber and One UI thermal tuning.