Microsoft has reworked Windows 11 to run noticeably better on PCs with 8GB of RAM — and it brought numbers, from its own lab.
"On 8 GB PCs, Windows is now up to 20 percent more responsive, and multitasking is up to 40 percent faster in our lab test," Windows chief Pavan Davuluri said. The core of the update is compression: Windows can now keep up to 2 GB more of your active data in memory instead of paging it to slower storage, so an app or tab you left open is less likely to reload when you come back.
The rest of the savings are a list of things Windows stops doing to itself. Word, PowerPoint, Excel and Outlook together account for 360 MB; committed-memory growth across Windows, Edge and Microsoft 365 falls by up to 900 MB. Widgets no longer load on an 8GB machine until you open the panel, saving around 200 MB, and inactive Edge tabs sleep after 15 minutes.
The timing is the interesting part. Memory has become the scarce input of 2026: DRAM prices are climbing, manufacturers are building inventory, and even single-board computers are getting more expensive. Rather than asking for more RAM, Microsoft is optimising for the configuration the market actually sells. It is also a correction of its own ledger — some of the megabytes being recovered belong to features Redmond added in the first place.
Further work is promised but undated: compression will get "smarter and more efficient", Windows features and apps will share common components — widgets and search running on a single web engine — and Microsoft will work with PC makers and chipmakers on how much memory a machine must reserve for its hardware.
Anyone checking the claims should watch the "up to". These are lab figures for selected scenarios, not a guarantee for every 8GB device, and responsiveness is not throughput. What holds regardless: an operating system that gets faster on the weakest hardware still being sold is, for now, the cheaper answer to an expensive memory market.
