Razer Cortex is a free software that optimizes your PC for gaming performance, boosting FPS, and organizing your games.
Best GameMode Alternatives ranked by AI · updated Aug 2026
GameMode is an open-source Linux daemon that lets games request temporary performance-related system optimizations. It is intended for Linux gamers and integrates with supported launchers and games rather than providing a conventional graphical booster.
Top 6 GameMode alternatives
Game Fire is a PC gaming optimization software that improves gaming performance by optimizing system resources and settings.
Free with a Pro version available for $29.95
Wise Game Booster is a free game speedup tool that helps optimize your PC for smoother and more responsive gaming performance.
Mz Game Accelerator is a Windows utility for reallocating system resources and adjusting running processes while playing games. It targets casual PC...
Pros
- Lightweight and simpler than full PC optimization suites
- One-click game-mode activation requires little configuration
- Free for Windows users
Cons
- Older interface and limited documentation compared with newer boosters
- Offers fewer game-library and driver features than Razer Cortex
- Performance improvements depend heavily on the PC and game
MSI Afterburner is a graphics card utility that enables you to adjust the core voltage, core clock, and memory clock of your...
Pros
- Overclocking features
- Customizable user interface
Cons
- Focused on overclocking, may not provide as much detailed information as GPU-Z
6
Smart Game Booster
IObit
Smart Game Booster is a Windows utility that combines game launching, driver updates, system optimization, and frame-rate monitoring. It targets gamers who...
Pros
- Combines game boosting with driver-update and FPS-monitoring features
- Supports game library management and automatic optimization
- More feature-rich than Mz Game Accelerator
Cons
- More bundled functionality and notifications than a minimal booster
- Driver updates can be less desirable than using hardware-vendor tools
- Some optimization options require Pro
Freemium, Pro from $14.99/year
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