The arrival of the Lenovo Legion Go S in the portable console segment has sparked a new debate: which operating system offers the best gaming experience, SteamOS or Windows 11? And the answer, after weeks of comparisons and analysis by the specialized press and the community, seems clearer than ever: SteamOS leads the way in performance and battery life on the Lenovo Legion Go S..
This paradigm shift has not gone unnoticed. If a year ago most gamers assumed that Windows was the best—and often the only—viable option for PC gaming, now the results show that opting for SteamOS brings not only a noticeable improvement in frame rate, but also much greater autonomy, something key for this type of device. Let's break down in detail all the tests, figures, and arguments presented by media and industry experts.
SteamOS and the portable revolution: a little context
SteamOS is the Linux-based operating system designed by Valve, which until recently was only available on the Steam Deck. However, in May 2025, it became officially available for other devices, including the Lenovo Legion Go S and the Asus ROG Ally X. The possibility of choosing between Windows 11 and SteamOS on the same machine was, until recently, unthinkable..
While Windows 11 is an operating system designed for a general-purpose desktop experience, SteamOS is built with efficiency, game optimization, and optimal hardware utilization in mind for portable consoles. Valve has placed special emphasis on eliminating unnecessary background processes, intrusive telemetry, and unnecessary power consumption.All of this, combined with its integration with Steam and Proton, a compatibility layer that allows you to run Windows games on Linux, has positioned SteamOS as a real and competitive alternative.
Performance comparison: figures that speak for themselves
The debate over whether Linux can outperform Windows in gaming has been ongoing for years, but the arrival of SteamOS, along with objective testing, has turned things on its head: The results obtained on the Lenovo Legion Go S are overwhelming..
According to tests by experts such as Dave2D and media outlets such as ComputerHoy, El Chapuzas Informático, ITC.ua, Tarreo, and HardZone, the performance differences between SteamOS and Windows 11 are more than evident:
- Cyberpunk 2077: With SteamOS, the Legion Go S achieves 59 FPS with low/medium graphics, compared to the 46 FPS of Windows 11. This is practically a 30% improvement.
- The Witcher 3: Jump from 66 FPS with Windows 11 a 76 FPS with SteamOS.
- Doom Eternal: Upload from 66 FPS in Windows 11 to 75 FPS with SteamOS.
- helldivers 2: Win 5 FPS on average with SteamOS, something less spectacular but significant.
- Spider-Man 2:Interestingly, the only title where Windows 11 gets slightly more FPS (1 frame difference, an anecdotal difference).
In terms of performance, The improvement is between 20% and 30% in demanding titles simply by changing the operating system, without modifying the hardware.
Consumption and autonomy: the great leap forward of
If the performance boost is already a major blow to Windows 11, what's happening with battery life is even more striking. Tests show that SteamOS can double the battery life of the Legion Go S in some games, and improve it by 25% even in the most demanding ones..
- Cyberpunk 2077: Playing on SteamOS takes approximately 30 minutes more autonomy against Windows 11.
- Hades: On Windows 11, the console shuts off after 2 hours of play; on SteamOS, it lasts an impressive XNUMX hours. 4 17 hours and minutes.
- Dead Cells: SteamOS allows more than three and a half extra hours of gaming on a single charge compared to Windows 11.
What is the reason behind this jump? On the one hand, Windows 11 runs multiple background processes, including telemetry and data collection services, which unnecessarily load the system and constantly consume resources.On the other hand, SteamOS minimizes power consumption and optimizes sleep and suspension functions, allowing energy to be dedicated almost exclusively to the game.
Hardware and specifications: the differences are in the software
Both versions of the Lenovo Legion Go S (SteamOS and Windows 11) feature exactly the same hardware, so the differences can only be attributed to the operating system:
- AMD Ryzen Z2 Go Processor (4 cores, Zen 3, RDNA 2 graphics).
- 16 GB of RAM y 512 GB SSD NVMe.
- 8-inch WUXGA PureSight display (1920 x 1200, up to 120 Hz, VRR, 500 nits brightness, 100% sRGB).
- 55 Wh battery.
These details reinforce the idea that The performance jump is an inherent advantage of SteamOS, not the specific hardware.. In addition, the Legion Go S also enjoys improved heat dissipation and ergonomics that facilitate extended gaming.
Versatility: strengths and limitations of each system
One of the big arguments in favor of Windows 11 is its versatility: allows you to install applications, emulators and games from other platforms such as GOG, Epic or Xbox Game Pass, something that SteamOS, by default, does not facilitate to the same extent.
In counterpart, SteamOS is fully focused on the gaming experience, with a screen-optimized interface and handheld controls.. Additionally, it can be installed in dual-boot mode, allowing users to choose which operating system to use based on their needs or preferences.
It should also be noted that SteamOS still presents certain compatibility challenges with some components and games outside of Steam.However, thanks to Proton's development and ongoing updates, the list of supported games and hardware continues to grow every day.
Upgrade, price and ease of installation
The Lenovo Legion Go S is on the market for an attractive price (with the Windows version hovering around 579 Euros, and SteamOS even cheaper in some cases). The SteamOS installation process, according to the official Steam website and multiple reviews, consists of Disable Secure Boot and boot the system from an external USB drive; a simple task for users with some experience.
The ability to choose between Windows 11, SteamOS, or both via dual boot allows each user to tailor the console to their profile. Additionally, NVMe storage ensures SteamOS meets future compatibility and update requirements, paving the way for a smooth, Steam Deck-like experience.
Comparison with Steam Deck and other handheld consoles
The Lenovo Legion Go S not only competes with Valve's model, but even can outperform the Steam Deck in performance at the same power consumption. For example, at 15W, the Legion Go S performs as well as the Deck, and by increasing the TDP to 33W, The Legion Go S can double its performance.This, combined with a significantly larger display and more advanced controls, makes the Legion Go S one of the most attractive options on the market today.
Still, The Steam Deck still maintains a slightly longer battery life in some circumstances., but it's losing ground in raw power. On the other hand, the Asus ROG Ally X and other similar consoles are starting to receive support for SteamOS, which promises increasingly tough competition in this segment.
Implications for Microsoft, Valve, and the Future of PC Gaming
The arrival of SteamOS on portable consoles like the Legion Go S could be a major setback for Microsoft. Many users are forced to use Windows to play games, but if a dedicated gaming operating system now offers More FPS and longer battery life, migration may be a matter of timeIf this trend continues, it is estimated that Windows could lose millions of users to SteamOS or similar solutions.
Valve's merit is twofold: Not only does it manage to run games originally designed for Windows, but it does so through a translation layer (Proton) and still outperforms native Windows 11 performance.However, it's important to remember that Windows remains the king of application compatibility and productivity, office automation, and multimedia.
User perspective and real experience
Beyond the numbers, those who have tested the Legion Go S with SteamOS highlight the fluid feel, no interruptions from updates or annoying Windows processes, and almost instant startup. Additionally, the sleep mode management and speed of returning to the game stand out compared to the traditional Windows experience.
Of course, for those who prefer a versatile device capable of working, browsing, and playing on any platform, the option of maintaining both systems via dual booting remains viable. For pure gaming enthusiasts, SteamOS is presented as the best option, now with the added benefit of being able to be installed on more powerful consoles or with better screens than the Steam deck original.
Competition in the portable PC console space has only intensified. The introduction of SteamOS on the Lenovo Legion Go S represents a quantum leap in what a gaming-optimized operating system can offer: improved performance, longer battery life, and a smoother user experience. With the ability to choose or even combine both systems, users are more empowered than ever to get the most out of both their games and their portable hardware. Share the information so that other users know about the topic.