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  1. Home
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  5. Should you upgrade to Windows 11 for Rendering?

Should you upgrade to Windows 11 for Rendering?

Posted on October 8, 2021 by Kelly Shipman
Always look at the date when you read an article. Some of the content in this article is most likely out of date, as it was written on October 8, 2021. For newer information, see Should you upgrade to Windows 11 for Rendering?

Table of Contents

  • Introduction
  • Test Setup
  • Cinebench
  • OctaneBench
  • Redshift
  • V-Ray CPU & GPU
  • Should you Upgrade to Windows 11 for Rendering?

TL;DR: Is Windows 11 ready for Rendering?

Windows 11 is very new, and many of the most popular rendering applications have not release updates to take full advantage of what Windows 11 offers. Due to this alone, we recommend waiting to upgrade to Windows 11 until the applications you rely on are fully supported.

Our early testing shows in many cases, Windows 11 is actually slower than Windows 10 when it comes to rendering. Often any change is performance is minor, though in V-Ray CPU rendering, any CPU with more than 32-cores was significantly hindered. Only V-Ray's GPU based rendering showed any improvement across all platforms tested. What ever your renderer is, we recommend waiting for official word from the application's developer that Windows 11 is ready for production work.

Introduction

Windows 11 is finally here, featuring an updated UI, better support for virtual desktops, improved window snapping, and a wealth of other changes. For details on what is new, check out our article outlining some of the more exciting features. However, a new OS can also improve, or in some cases hinder the performance of existing applications.

In this article, we will be looking at a few of the most popular 3d rendering applications to see how they perform and behave in Windows 11 – namely Redshift, V-Ray, Octane, and Cinebench. Many of these applications may not officially support Windows 11, and we are likely to see updates on both the application side and OS side in the coming weeks.

Once Windows 11 support is officially added to these applications, things are very likely to change. But, we know a lot of users are excited to upgrade to Windows 11, so we wanted to see how things are in these early days post-launch.

Windows 10 vs Windows 11 for Rendering
Image
Windows 10 vs Windows 11 for Rendering
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Test Setup

Listed below are the specifications of the systems we will be using for our testing:

Intel Core 11th Gen Test Platform
CPU Intel Core i9 11900K 8 Core
CPU Cooler Noctua NH-U12S
Motherboard Gigabyte Z490 Vision D
RAM 4x DDR4-3200 32GB (128GB total)
AMD Ryzen 5000 Series Test Platform
CPU AMD Ryzen 9 5950X 16 Core
CPU Cooler Noctua NH-U12S
Motherboard Gigabyte X570 AORUS ULTRA
RAM 4x DDR4-3200 32GB (128GB total)
AMD Threadripper 3000 Series Platform
CPU AMD TR 3970X 32 Core
CPU Cooler Noctua NH-U14S TR4-SP3
Motherboard Gigabyte TRX40 AORUS PRO WIFI
RAM 4x DDR4-3200 16GB (64GB total)
Intel Xeon W Test Platform
CPU Intel Xeon W-3375 38 Core
Intel Xeon W-3365 32 Core
CPU Cooler Noctua NH-U12DX i4
Motherboard Supermicro X12SPA-TF 64L
RAM 8x DDR4-3200 16GB Reg. ECC (128GB total)
AMD Threadripper PRO 3000 Series Test Platform
CPU AMD TR Pro 3995WX 64 Core
AMD TR Pro 3975WX 32 Core
CPU Cooler Noctua NH-U14S TR4-SP3
Motherboard Asus Pro WS WRX80E-SAGE SE WIFI
RAM 8x DDR4-3200 16GB Reg. ECC (128GB total)
Shared PC Hardware/Software
GPU NVIDIA GeForce RTX 3080 10GB
Storage Samsung 980 Pro 2TB
Software Windows 10 Pro (Ver. 2009)
Windows 11 Pro (Ver. 2009)
Redshift 3.0.33
OctaneBench 2020.1.5
V-Ray Benchmark 5.00.01

*All the latest drivers, OS updates, BIOS, and firmware applied as of October 4th, 2021

To examine rendering performance in Windows 11, we will be using the respective benchmarks available for each application. For the sake of simplicity, we will be covering both CPU and GPU-based rendering in this article.

To look at a wide range of system platforms, we are testing one CPU from the Intel Core 11th Gen, AMD Ryzen 5000 series, and AMD Threadripper 3000 series of processors. We will also be looking at two CPUs from the Intel Xeon W-3300 and AMD Threadripper Pro 3000 series (a 32 core model, and a 38/64 core model) in order to see if Windows 11 handles CPUs with >32 cores better than Windows 10. CPUs with more than 32 cores have to be split into multiple logical processor groups by Windows, which can often introduce performance issues, and we are curious to see if Windows 11 has improved this behavior.

Cinebench

Cinebench Windows 10 vs Windows 11
Image
Cinebench Windows 10 vs Windows 11

Starting off with Cinebench, we see very little change between Windows 10 and Windows 11. Some CPUs see slight improvements, some see slightly worse scores. The biggest performance loss we see is on the 38 core Xeon W-3375, but even then it was a decrease of roughly 4%. Hardly enough to matter, and could probably be overcome with a few settings tweaks.

Cinebench Single Core Windows 10 vs Windows 11
Image
Cinebench Single Core Windows 10 vs Windows 11

Similarly, in single-core performance, we see very little deviation from the Windows 10 scores. Some are ever so slightly faster, some slightly slower. All are close enough to be within the margin of error.

OctaneBench

Octane Windows 11 performance
Image
Octane Windows 11 performance

Octane is a GPU renderer, so we should see consistent scores from all systems, as they are all using an Nvidia RTX 3080. In Windows 10, all results are within the margin of error. However, in Windows 11, we see a few anomalies. All systems see a very slight drop in scores, however, the three Intel systems all see a bigger drop in performance. While any drop in performance is discouraging to see, these results should give Intel users pause if considering the jump to Windows 11.

Redshift

Redshift performance in Windows 11
Image
Redshift performance in Windows 11

Redshift is another GPU-based renderer. Again, we see slight performance dips across the board. The one exception is the Intel Xeon W-3375 38 Core which was actually showed slightly improved times. We were able to repeat this score in multiple runs. Somewhat ironically, this was using Window’s “Balanaced” power plan, but switching “High Performance” returned a lower score. This isn’t the ideal system for GPU rendering anyway, but it is an interesting result.

V-Ray CPU & GPU

V-Ray CPU performance in Windows 11
Image
V-Ray CPU performance in Windows 11

V-Ray offers both CPU and GPU options. Looking at CPU rendering first, we see our biggest discrepancy yet. The 64-core/128-thread AMD Threadripper Pro 3995WX sees significantly lower performance in Windows 11 than it does in Windows 10. The score matches that of it’s 32-core sibling, the 3970X. Watching task manager during the test confirms that only 32 cores are active at any given time. This tells us that the V-Ray/Windows 11 combo has an issue with using more than 64 logical processors. This was verified with a non-pro Threadripper 3990X. We can see a similar effect with the Intel Xeon X-3375, though not as pronounced as it is only losing 6 cores. Users of CPU rendering tended to gravitate towards the 64-Core Threadripper because of its amazing performance. These users should steer clear of Windows 11 until a fix is in place.

V-Ray GPU performance in Windows 11

Turning to V-Ray’s GPU performance, we see another interesting result. Across the board, we see a big performance improvement. Windows 11 sees an average increase of 18% V-Ray’s GPU rendering no matter which CPU is selected. This is a highly encouraging result. We will have to see if this is across all video cards but for now, this might give V-Ray GPU users a nudge to check out Windows 11 soon, or at least check with Chaos Group on their plans.

Image
V-Ray GPU performance in Windows 11

Should you Upgrade to Windows 11 for Rendering?

Again we’d like to stress that this is a very early stage for an OS, and many things will be subject to change in the coming weeks and months. This article aims to give a very brief snapshot of the state of Windows 11 at launch, and only looks into the rendering performance. There are many other factors to consider before upgrading.

No matter what, we recommend waiting to upgrade to Windows 11 until the applications you use have official support. And if you are thinking about upgrading to Windows 11 anyway, we would heavily caution you against doing so at this time. In most cases, we saw worse performance in Windows 11, sometimes very minor, sometimes significant. The major exception is V-Ray GPU rendering. As is typical with an OS launch, there will be many performance improvements and bug fixes coming from both Microsoft and the software developers in the coming weeks and months.

If you want to learn more about Windows 11, we have a Windows 11 FAQ article that we are keeping up to date as more questions and information comes up. In addition, we have a growing number of Windows 11 support guides available to help guide you when you decide to upgrade to Windows 11.

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Tags: 3970X, 3975WX, 3995WX, 5950X, After Effects, AMD Ryzen 5000 Series, AMD Ryzen Threadripper PRO 3000 Series, AMD Threadripper 3rd Gen, GPU Acceleration, i9 11900K, Rendering, W-3365, W-3375

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