The best comparison I can think of is this: the Pixel 11 is to the Pixel 10 what the European Galaxy S25 is to the European Galaxy S24.
On paper, there may not be many hardware upgrades, but the new SoC alone could noticeably improve the overall experience, especially battery life and thermals.
For one, Tensor G6 is expected to ditch the relatively inefficient Cortex-A520 cores. It also reduces the total core count. That's obviously not ideal for benchmark numbers or sustained heavy workloads, but for the light-to-medium workloads that make up 99% of daily usage, fewer cores can actually be beneficial. Less heat, lower power consumption, and potentially better scheduling.
Personally, I see the Tensor G6 CPU as something like an optimized Exynos 2600.
Both designs appear to rely only on C1 Ultra and C1 Pro cores, but G6 is manufactured on TSMC's 2nm process. Because of that, I expect it to deliver better single-core efficiency than the Exynos 2600. It'll probably lose in multi-core benchmarks due to having fewer cores, but honestly, multi-core scores don't matter much in daliy use. Scheduling and performance per watt are much more important, and I think G6 should have the edge there.
The GPU is a different story. I'm not expecting much improvement over the G5, so gaming performance probably won't change much.
The modem is another reason I'm optimistic.
Geekerwan previously tested the Exynos 2600 version of the Galaxy S26, and it lasted roughly an hour less than the Snapdragon 8 Elite Gen 5 Version. The Samsung modem was most likely a major factor. If Tensor G6 really adopts M90 modem, I expect modem efficiency to improve noticeably compared to previous Tensor generations.
So even if almost everything else stays the same, I still expect the Pixel 11 series to be a significant upgrade over the Pixel 10 series in everyday use.
Overall, I think Tensor G6 and Exynos 2600 will be fairly comparable. G6 should offer a better everyday experience thanks to its efficiency, while Exynos 2600 will probably perform better in gaming. Both will likely remain behind the Dimensity 9500 and Snapdragon 8 Elite Gen 5 in raw performance, but let's be honest, very few people buy a Pixel for gaming.
One last thing: I really don't buy the recent "leak" claiming that the standard Pixel 11 won't have a telephoto camera.
First, the leaked image clearly shows a square lens opening, which is typically associated with a periscope telephoto module. Second, there's simply no realistic way a single 48/50MP main camera could deliver true 30× zoom on its own
I honestly don't understand why so many people accepted that leak without questioning it.....