What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
Microsoft Edge includes a user-set RAM limit that can force the browser to reduce memory use when it reaches your chosen ceiling. In Edge 125 and later, you can apply the limit only while PC gaming or set it to run Always. Edge responds by putting more inactive tabs to sleep or discarding them, which can mean more reloads and slower performance if the cap is too low.
What Edge’s resource controls do
Resource controls are a memory-management setting in Edge 125 and newer. Open Settings and more (…) > Settings > System and performance, enable the resource-controls feature, and choose when the limit applies. The default mode manages RAM during PC gaming; selecting Always keeps the cap active during normal browsing as well.
As an Amazon Associate I earn from qualifying purchases.
When Edge reaches the limit, Microsoft says it will try to reduce memory use by sleeping more tabs and discarding some tab data. Microsoft’s published warning is that users “may notice increased page reloads with more tabs being slept and discarded.” The setting is therefore a tuning control, not a guarantee that Edge will stay below an exact number at every moment.
Monitor the limit in Browser essentials
Edge’s Browser essentials sidebar shows the RAM limit and information about memory recovered from sleeping tabs. Use it after changing the cap to see whether tabs are being suspended frequently and whether the browser remains responsive for your workload.
#1 Best Overall
- A-Tech 16GB RAM Module, DDR4 SO-DIMM 260-Pin, 3200MHz PC4-25600 (PC4-3200AA)
- Non-ECC Unbuffered, JEDEC DDR4 Standard 1.2V Operating Voltage
- Compatible with select Laptop, Notebook, Mini PC, and All-in-One (AIO) systems. Please verify your system's memory type, form factor, and maximum supported capacity before purchasing
- Not compatible with desktop DIMM, non DDR4 memory, or ECC memory types such as RDIMM, LRDIMM, and ECC UDIMM
- Increases available memory capacity to enhance system responsiveness, application performance, and multitasking capabilities.
How sleeping tabs save memory
Sleeping tabs pause inactive pages so the operating system can reuse memory and CPU for active work. Microsoft’s support guidance says tabs normally become eligible after two hours without activity, although the timeout can be changed in Edge’s performance settings.
Sleeping a tab is different from closing it. Microsoft says sleeping tabs resume without reloading, so returning to one is usually quicker than reopening a discarded page. A tab may still reload when Edge has to discard it to meet the RAM limit or to handle heavier memory pressure.
Rank #2
- Boosts System Performance: 32GB DDR5 RAM laptop memory kit (2x16GB) that operates at 5600MHz, 5200MHz, or 4800MHz to improve multitasking and system responsiveness for smoother performance
- Accelerated gaming performance: Every millisecond gained in fast-paced gameplay counts—power through heavy workloads and benefit from versatile downclocking and higher frame rates
- Optimized DDR5 compatibility: Best for 12th Gen Intel Core and AMD Ryzen 7000 Series processors — Intel XMP 3.0 and AMD EXPO also supported on the same RAM module
- Trusted Micron Quality: Backed by 42 years of memory expertise, this DDR5 RAM is rigorously tested at both component and module levels, ensuring top performance and reliability
- ECC Type = Non-ECC, Form Factor = SODIMM, Pin Count = 262-Pin, PC Speed = PC5-44800, Voltage = 1.1V, Rank And Configuration = 1Rx8
Keep important sites awake
If a web app, document, call, dashboard or form cannot tolerate suspension, add it to Edge’s list of sites that should remain active in the performance settings. This uses more memory for those pages but avoids interruptions caused by sleeping or discarding them.
Do these 3 things before closing this tab:
1Repair Windows errors before they cause bigger problems2Scan for outdated or missing drivers - takes under a minute3Clear out junk files and repair common Windows errorsWhat Microsoft’s memory figures mean
| Figure | What it measures | Qualification |
|---|---|---|
| 83% average memory saved per sleeping tab | Microsoft Edge Team update | Published December 6, 2022; an average vendor-reported result, not a universal guarantee |
| 85% average memory saved and 99% average CPU saved per sleeping tab | Microsoft Edge Team update | Published April 7, 2022; vendor-reported averages under Microsoft’s test conditions |
| 1.38 billion tabs slept | Edge deployment statistic | Microsoft reported this total for September 2022, following Edge 105 |
| Up to 40% and 10 GB less memory | Chrome desktop performance claim | Google’s launch claim from 2022; “up to” potential reduction, not a current Edge-versus-Chrome benchmark |
The percentages should not be read as a ranking between browsers. They come from separate companies, products and test conditions, and neither establishes how much RAM one browser will use on your particular computer.
Rank #3
- Boosts System Performance:16GB DDR4 laptop memory that operates at 3200MHz to improve multitasking and system responsiveness for smoother performance
- Easy Installation: Upgrade your laptop RAM with ease—no computer skills required Follow step-by-step how-to guides available at Crucial for a smooth, worry-free installation
- Compatibility Guaranteed: Ensure seamless compatibility with your laptop by using the Crucial System Scanner or Crucial Upgrade Selector—get accurate recommendations for your specific device
- Trusted Micron Quality: Backed by 42 years of memory expertise, this DDR4 RAM is rigorously tested at both component and module levels, ensuring top performance and reliability for your Mac system
- ECC Type = Non-ECC, Form Factor = SODIMM, Pin Count = 260-pin, PC Speed = PC4-25600, Voltage = 1.2V, Rank and Configuration = 1Rx8 or 2Rx8
Edge versus Chrome Memory Saver
Chrome has a related feature under Settings > Performance > Memory Saver. Its current controls are Moderate, Balanced and Maximum. Chrome deactivates tabs you are not using so active tabs can run more smoothly; an inactive tab reloads when you return to it.
| Capability | Microsoft Edge | Google Chrome |
|---|---|---|
| User-facing RAM cap | Yes, with a PC gaming mode or an Always mode in Edge 125+ | Not stated in the supplied official guidance; Memory Saver uses levels instead |
| Inactive-tab automation | Sleeping tabs, with an adjustable inactivity timeout; resource controls can increase sleeping and discarding | Memory Saver deactivates inactive tabs; reopened tabs reload |
| Protected sites | Performance settings let you keep critical sites active | Memory Saver also provides performance controls, but the available behavior depends on Chrome’s current settings |
| Reload trade-off | More reloads are possible when the RAM limit is reached | Inactive tabs reload when reopened |
Both browsers now reclaim resources from inactive tabs. Edge’s distinguishing option is the visible RAM ceiling, which gives heavy multitaskers a more direct way to trade tab persistence for a predictable memory target.
Rank #4
- A-Tech 8GB RAM Module, DDR4 SO-DIMM 260-Pin, 2666MHz / 2667MHz PC4-21300 (PC4-2666V)
- Non-ECC Unbuffered, JEDEC DDR4 Standard 1.2V Operating Voltage
- Compatible with select DDR4 SODIMM capable Laptop, Notebook, Mini PC, and All-in-One (AIO) computer systems. Please verify your system's memory type, form factor, and maximum supported capacity before purchasing
- Not compatible with desktop (DIMM), DDR2, DDR3, DDR5, ECC Registered (RDIMM), ECC Load Reduced (LRDIMM), or ECC Unbuffered (ECC UDIMM) memory types
- Increases available memory capacity to enhance system responsiveness, application performance, and multitasking capabilities.
Set up an Edge RAM limit safely
- Open the performance controls: select Settings and more (…) > Settings > System and performance.
- Enable resource controls: turn on the RAM-management feature.
- Choose the scope: leave the default PC-gaming behavior if you only need it during games, or select Always for continuous enforcement.
- Check Browser essentials: watch the RAM limit and sleeping-tab information while using your normal tabs and extensions.
- Adjust gradually: if pages reload often or interactive sites become sluggish, raise the limit or protect those sites from sleeping.
Why Edge tabs reload after you set a limit
The cap is too low
A low limit leaves Edge little room for active pages, extensions and background work. The browser compensates by sleeping or discarding more tabs, increasing the chance that a tab must reload.
The site cannot stay suspended cleanly
Some web applications depend on a live session, continuous audio, real-time updates or unsaved form state. Keep these domains active in performance settings rather than lowering the cap further.
Normal memory pressure is still involved
The RAM limit is not the only factor. The operating system, other applications, extensions and the number of open tabs all compete for memory, so behavior can vary even when the Edge setting is unchanged.
Does Edge really use less RAM than Chrome?
The available official figures do not prove that Edge uses less RAM than Chrome for every workload. Microsoft reports large average savings from sleeping tabs, while Google reports a potential reduction for Chrome’s own Memory Saver; these are not neutral, side-by-side measurements. Compare the browsers on your own mix of tabs, extensions, web apps and games, paying attention to reloads, site compatibility, responsiveness and battery life.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
