Windows 11’s latest pre-release and insider builds fix its AMD Ryzen performance issues

Windows 11's latest pre-release and insider builds fix its AMD Ryzen performance issues

Windows 11’s newest early access builds fix its AMD Ryzen performance issues

Microsoft’s latest Beta and Release Preview versions of Windows 11 contain important fixes for AMD Ryzen processors, addressing an L3 cache latency buy that has been causing performance issues on compatible AMD Ryzen processors. 

These new patches will be released next week for mainstream Windows 11 users, offering PC users the performance levels that they expect from their Ryzen series processors. This issue caused performance losses of around 5% in many applications and performance degradations as high as 10-15% in apps that were particularly latency-sensitive. 

Here is what Microsoft has to say in their latest Windows 11 Preview Build Blog Post. 


    We fixed an L3 caching issue that might affect performance in some applications on devices that have AMD Ryzen processors after upgrading to Windows 11 (original release).

Why L3 Cache Latency Matters 

There is more to PC performance than the raw power of your processor. Memory matters, and before your processor accesses DRAM, its L1, L2 and L3 caches come into play. 

These on-CPU caches keep important data close to your CPU cores, allowing that data to be accessed quickly and with tonnes of bandwidth. Accessing data from these caches is much faster than accessing it from DRAM, making a processor’s cache structure a vitally important part of modern CPU design. 

Memory latency is significant for modern processors, as the more latency your memory possess, the more time your processor may be sitting waiting for data. Lowering cache and DRAM latency allows your processor to spend less time waiting and more time computing, resulting in increased performance and power efficiency. That is the main reason why many PC enthusiasts recommend memory modules with tight CL timings, as these memory modules offer the lowest DRAM latencies. 

Windows 11’s L3 Cache bug is damaging to the overall performance of AMD’s Ryzen series processors, making this fix a vital one for users of AMD-based processors. This is especially true for hardcore gamers, as gaming workloads are more latency-sensitive than most. 

Thankfully, AMD and Microsoft have been quick to spot this performance issue, and Windows 11 will soon be updated to grant Ryzen users access to the full potential of their processors. As we mentioned before, these updates are due to be distributed to mainstream Windows 11 users next week. 

You can join the discussion on Microsoft releasing previews for Windows 11’s Ryzen-fixing update on the OC3D Forums.

Microsoft's Windows 11 Ryzen-fixing PC patches are due to be released next week