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The Qualcomm Snapdragon 875 might have a secret weapon against the Samsung Exynos 2100: ARM's latest X1 cores

The ARM X1 could give the Snapdragon 875 a considerable edge over Samsung's Exynos 2100 (Image source: Qualcomm)
The ARM X1 could give the Snapdragon 875 a considerable edge over Samsung's Exynos 2100 (Image source: Qualcomm)
Tipster @UniverseIce claims that only Qualcomm's Snapdragon 875 will be utilizing ARM's high-performance X1 cores this generation. This is bad news for Samsung fans, as it means that the Exynos 2100 might fall behind considerably in single-threaded performance.
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Tipster @UniverseIce recently claimed that only the Qualcomm Snapdragon 875 will feature ARM's latest X1 high-performance CPU core. If true, this would put Samsung's home-grown Exynos 2100 at a significant disadvantage in terms of single-threaded performance. This could lead to the upcoming Samsung Galaxy S21 Plus trailing behind competing flagship devices in benchmarks. 

Both the Snapdragon 875 and Exynos 2100 feature a heterogenous CPU design, with one large core, paired with performance and efficiency cores. The Snapdragon 875 will likely utilize a single X1 as its large core, for optimal single-threaded performance, together with a number of ARM A78 and ARM A55 cores. 

Initial reports suggested that Samsung would utilize a similar core configuration with the Exynos 2100, with the large core clocked at nearly 3 GHz. If @UniverseIce's claim pans out, Samsung might simply utilize a higher-clocked A78 as the "large" core, together with 3 lower-clocked A78s. The X1 itself is based on the ARM A78 architecture but redesigned to maximize performance over power efficiency. ARM claims a roughly 30 percent performance uplift over the A77.

We don't know exactly how much faster it is relative to the A78. However, significant differences in IPC could translate into a big gap in performance between Exynos 2100-equipped devices and devices that ship with the Snapdragon 875. 

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Arjun Krishna Lal
Arjun Krishna Lal - Tech Writer - 507 articles published on Notebookcheck since 2019
I've had a passion for PC gaming since 1996, when I watched my dad score frags in Quake as a 1 year-old. I've gone on to become a Penguin-published author and tech journalist. Apart from working as an editor at Notebookcheck, I write for outlets including TechSpot and Gamingbolt. I’m the Director of Content at Flying V Group, one of the top 5 digital marketing agencies in Orange County. When I'm not traveling the world, gathering stories for my next book, you can find me tinkering with my PC.
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> Notebook / Laptop Reviews and News > News > News Archive > Newsarchive 2020 10 > The Qualcomm Snapdragon 875 might have a secret weapon against the Samsung Exynos 2100: ARM's latest X1 cores
Arjun Krishna Lal, 2020-10- 6 (Update: 2020-10- 6)