From what I could find out it clears out old files Windows files, defragments hard disks, and turns off non key window process during games. Rather or not it will help much I guess depends on how much RAM you have. (I not used cortex but I left the links I used to get the information above) Sources https://www.razer.com/cortex/system-booster https://www.techradar.com/uk/reviews/razer-cortex Edit: to what you were asking about if its shake oil. the process being turned off would free up some RAM but if you knew what you are doing you could turn them off yourself like the video Alex did on the windows 10 video (although you probably want need to go that extreme) Answer from _tommar_ on reddit.com
Epic Games
store.epicgames.com › en-US › p › razer-cortex
Razer Cortex | Download for Free - Epic Games Store
Download Razer Cortex for FREE at the Epic Games Store. Check for platform availability and play today!
Microsoft Store
apps.microsoft.com › detail › 9pk9w5qv2pkx
Razer Cortex - Free download and install on Windows | Microsoft Store
Enable the Razer Cortex (Beta) widget in the Xbox Game Bar to boost your gaming performance with just one step. The Razer Cortex BOOST feature helps end unnecessary processes and services running in the background to free up more resources to your PC. Plus, get easy access to other popular Cortex features like PAID TO PLAY and the top GAME DEALS.
Videos
05:37
Razer Cortex On vs Off | Is this program worth it? - YouTube
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I Tested Razer Cortex... The Results Will SHOCK You 🔥 - YouTube
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Razer Cortex Review: Boost FPS and Optimize Graphics Settings? ...
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I Tried the BEST Razer Cortex Settings for Gaming 🎮 | Ultimate ...
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Razer Cortex : Does it really works... - YouTube
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How To Use RAZER CORTEX To BOOST FPS in ALL GAMES ✅ (Best Game ...
Uptodown
razer-cortex.en.uptodown.com › windows › games › utilities › razer cortex
Razer Cortex for Windows - Download it from Uptodown for free
November 27, 2025 - Download Razer Cortex for Windows for free. Enhance your gaming experience with software from Razer. Razer Cortex is the official Razer app that includes...
Razer
razer.com › cortex
Game Booster For PC and Laptops | Razer Cortex | Razer United States
It boosts your system performance for higher framerates and faster load times so you can game at your best, helps you find the best gaming deals, and is the central app to launch your favorite games quickly and easily—all on one powerful platform. DOWNLOAD NOW ... Get early access to unreleased games and help shape the future of gaming. Sign up for the Razer Cortex: Playtest Program – Powered by Side and earn Razer Silver rewards for the insights you submit.
TechRadar
techradar.com › pro › software & services
Razer Cortex review | TechRadar
Razer Cortex review
Anyone who’s a gamer would likely recognize the Razer name. It’s a premium brand known for its high-tech gaming PCs and accessories. The company developed Razer Cortex as a free add-on tool to help familiarize people with its brand. Razer Cortex is a system optimization tool for Windows-powered ... Can Razer Cortex help improve your gaming rig’s performance?
Reddit
reddit.com › r/lowspecgamer › is razer cortex good for optimisation, or just snake oil?
r/lowspecgamer on Reddit: Is Razer Cortex good for optimisation, or just snake oil?
April 9, 2018 -
Ive been playing modded mc for a while now and have noticed some hate towards game boosters/optimisers on this subreddit, but I have noticed something (at least with my system):
Razer Cortex actually does a very good job of boosting performance by allowing for my game to use more RAM (around 1GB extra RAM to use)
So my question: is Razer Cortex actually any good? Or is something else behind my performance increase?
SPECS:
Type: Laptop
CPU: i3-4005U
GPU: Intel HD 4400
RAM: 4GB DDR3
OS: Windows 7 Pro
Top answer 1 of 17
7
From what I could find out it clears out old files Windows files, defragments hard disks, and turns off non key window process during games. Rather or not it will help much I guess depends on how much RAM you have.
(I not used cortex but I left the links I used to get the information above)
Sources
https://www.razer.com/cortex/system-booster
https://www.techradar.com/uk/reviews/razer-cortex
Edit: to what you were asking about if its shake oil. the process being turned off would free up some RAM but if you knew what you are doing you could turn them off yourself like the video Alex did on the windows 10 video (although you probably want need to go that extreme)
2 of 17
5
Probably a stupid question but do you use optifine?
GitHub
github.com › razer-cortex-download
🚀 Razer Cortex – Game Booster & Performance Optimizer for Windows
Razer Cortex for Windows is a free game booster and performance optimizer that improves FPS, manages background processes, and helps gamers maximize system performance.
Lo4d
razer-cortex.en.lo4d.com › customization › windows tweaking
Razer Cortex - Download
Razer Cortex is provided under a freeware license on Windows from Windows tweaking software with no restrictions on usage.
Quora
quora.com › Does-Razer-Cortex-actually-work
Does Razer Cortex actually work? - Quora
Answer: Final verdict. Razer Cortex is a great free tool that can help improve performance in games, particularly if you're running titles that demand a large amount of RAM. Razer Cortex can help you recover 1 or 2 GB of memory from background ...
Google Play
play.google.com › store › apps › details
Razer Cortex Games: Rewards - Apps on Google Play
Play free games. Earn rewards like Razer hardware to popular gift cards and more with Rewarded Play! Meet Razer Cortex Games: 🎮 Play to Earn! Discover your new favorite games curated by Razer and play to earn with daily logins and Game Rewards ...
Razer Cortex
razer-cortex.en.softonic.com › home › windows › games › utilities › razer cortex
Razer Cortex - Download
3 weeks ago - Razer Cortex, free and safe download. Razer Cortex latest version: Game performance optimization and library management. Razer Cortex is a desktop app
TechSpot
techspot.com › downloads › 6952-razer-cortex.html
Razer Cortex Download Free - 11.4.10.0 | TechSpot
November 27, 2025 - Access free and paid VR experiences in an ever expanding library of games, cinematic VR, documentaries and other downloadable experiences in Razer Cortex: VR. OSVR - Open Source Virtual Reality is the largest open source virtual reality platform ...
CNET
download.cnet.com › razer-cortex › 3000-18512_4-10913645.html
Razer Cortex for Windows - Free download and software reviews - CNET Download
August 22, 2025 - Download Razer Cortex latest version for Windows free. Razer Cortex latest update: August 22, 2025
Razer
razer.com › pc › software
Razer Software | Synapse, Razer Chroma RGB, Razer Cortex and More | Razer United States
From combing the web for the best game deals, improving your PC performance while gaming or broadcasting your in-game moments, Cortex is the best free all-in-one software to get the best out of your gaming sessions.
Gizmodo
gizmodo.com › download › utilities › razer cortex: game booster
Download Razer cortex: Game booster (free) for Windows | Gizmodo
December 2, 2025 - Boost your games with Razer Cortex—a free tool that organizes your library, cleans up background tasks, and helps your PC run smoother, faster, and smarter. For Windows systems only. ... Razer Cortex is a free performance-enhancing utility that ...
Razer
razer.com › cortex › booster
Razer Cortex: Game Booster and System Booster | Razer United States
Razer Cortex features dynamic gaming and system optimization. Enjoy automatic resource management and enhanced gaming speed. Download today!
MakeUseOf
makeuseof.com › home › gaming › what is razer cortex and does it actually work?
What Is Razer Cortex and Does It Actually Work?
July 15, 2021 - In reality, most of what this Booster Prime mode seems to do is to reduce your graphical settings for you and give you somewhere to launch the game. Other than that, the boosting techniques seem to be mostly the same. Razer Cortex also includes a system booster, which scans for junk files and ...
Softpedia
softpedia.com › windows › gaming related › razer cortex
Razer Cortex - Download - Softpedia
Feather-light and free antivirus solution from renowned developer that keeps the PC protected at all times from malware without requiring user configuration