How to make Blender run faster on old hardware

In this video, we will discuss how to make Blender run faster on old hardware…

Watch the Video: https://www.youtube.com/watch?v=NIkFIF9y8ag
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Discuss this on Reddit: https://www.reddit.com/r/IdeasOfHakki/comments/1jt3sol/how_to_run_blender_faster/

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Deleted my post. Sorry, I didn’t realise you were sharing your own solutions, thought you were asking for feedback :man_facepalming:

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Oh it is okay. But wait, did I post this on the wrong category? I thought this is a place where we can share our tutorials? It is funny because I see that our comments have a “Solution” checkbox to accept comments as solutions. There is also a “Support” category in the forum. Should not “Tutorials, Tips and Trick” not have this “solution” checkbox? I thought this was a category solely made to share our own solutions… I’d love if @bartv clarified.

@Michael_Campbell , I love your tutorials btw!

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This tutorial came at the absolute right time for me–I read the written version of the tutorial.

I’ve been worrying about how the tariff nonsense here in the US basically ensures I will not be able to upgrade my laptop in 2026 as planned. My laptop, with its RTX 3060 GPU, is still quite fast overall, thankfully, but I’m specifically worried about my laptop breaking down while GPU and laptop prices are still insanely high, if not higher than they are now, so I’ve been looking for ways to optimize my scenes while ensuring my laptop lasts quite a bit longer than I originally intended–in better economic times, I tend to upgrade my hardware every 3-5 years.

This tutorial of yours not only will help me take better care of my current hardware and potentially make it last longer, but also shows me the TRUE upsides of learning extreme optimization techniques–the more I optimize things, the more I can ADD details and advanced lighting that I didn’t add before because it added too much to the render times of my animations in the past. Using my GPU at all outside of PC gaming is now optional as I can get some surprisingly-nippy render times now even with Cycles + Denoising solely on my CPU.

The only thing is that some of the names and settings have been either moved around in more recent Blender versions or given different names now. For example, I was confused when you talked about settings like “Direct Light” “Fast Global Illumination” and “Full Global Illumination” (especially since I do remember seeing those exact setting in older versions of Blender), but in my version of BforArtists (the fact I’m using a fork instead of actual Blender could also be a source of confusion, to be fair), all those settings have basically been replaced with a simple checkbox that turns “Fast Global Illumination Approximation” on (with some advanced settings under it if you so choose), and/or unfortunately manually changing Cycle’s too-high default values for Light Paths yourself.

But I figured out everything that I wanted to change to get more reasonable render times even on just my CPU, so it’s still a great intermediate/advanced Blender tutorial for those that want a little help, but don’t need to have the tutorial completely hold their hand every step of the way anymore.

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I should probably update that the tariff situation now exempts basically all electronics made in China, unless something suddenly changes (and it will in this crazy country), I should be able to upgrade my hardware just fine and continue to use my GPU for rendering if I so choose.

However, again this advice on optimization is still useful overall for allowing me to use my current hardware as efficiently as possible, as well as making rendering on, say, a Steam Deck via Desktop Mode (Blender does not recognize the handheld’s APU as a GPU), an actual possibility.

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Thank you very much for your supportive replies. This really motivates me to continue making educational content.

I also updated the article to mention the Blender version I am using. Thanks for the heads up about the names of the buttons.

I never thought of these new political developments to be so relevant to this article I wrote! Just, wow! Indeed getting newer computers will get more difficult, I guess.

Advice for you: I am not sure what exactly are you using your laptop for, but RTX 3060 Laptop GPU is pretty good. As you read in my article, I don’t even have a GPU, and I am doing more or less fine. I mean people were doing just fine in 2012 when my laptop was somewhat of a cutting edge at the time. New technology made us get results faster, but it did not exactly “enable” us to do new things. In my opinion, there has been more “ground-breaking” developments in Software side, not in the Hardware side. Since the inventions of GPUs in circa 1999, there has not beed a groundbreaking new hardware: They have only gotten faster. There has been new hardware like programmable circuits (FPGA), but that’s more interesting for people in engineer fields, not for us 3D guys. In short, rejoice because your hardware is pretty darn good. I would say, unless the laptop breaks down, it should be quite sufficient for all your use cases for a quite a while. My lower estimate is 15 years. My upper estimate is 20, maybe 25 years.

I mean imagine 10 years down the road we get quantum desktop computers which can simulate all the world’s polygon and render in realtime. Now we will be thirsting over getting our hands on one of these new shiny quantum computers. And yet, for all the reasons why you are using your laptop at this given moment, you will be able to continue to use your laptop in 10 years down the road, as well. This means: You won’t be able to simulate all the world’s polygons on your current laptop, but you did not want to do it in 2025 anyways, why would you suddenly want to do it in 2035? Just because some new computer tech can do it? Sometimes meditating over what we need and realizing that that was never our goal, is more helpful than getting a new device.

New developments in tech will always try to make you feel that you need this newest hardware, but no, you don’t really need them. It is generally more like “nice to have”.

Second advice for you: If you also have a strong CPU, you can use both your CPU and GPU in a smart way to speed up your animation renders (or any render where you need to render more than a ample amount of frame, shots etc.) →

Say you have a 10 minute animation. You copy your file and set 1st file to render the first 5 minutes in GPU. Then you open the 2nd file and you set it to render the last 5 minutes with the CPU. Then you start both files to render at the same time.

The CPU is generally used in just more than rendering. Whenever the GPU focused file prepares the new frame to render, it will also use your CPU. During that time, the other file who is rendering in CPU will slow down. But if you only render in 1 file with GPU only, then there will be a lot of time where your CPU is underused. If you can configure things in a good balance, then you will achieve actual CPU + GPU rendering. Using this method, you laptop will turn into a render farm powerhouse.

Also you may have noticed, Blender already has as GPU + CPU setting for rendering. But a CPU is generally slower than a GPU, hence trying utilize them both in Blender settings will actually result in a slower render time. However in the method I described above, you are using each device in a seperate file to render separate things. This way you will use both devices to their full extent.

I hope this helps. Thanks again for your supportive words. I hope it all works out with the tariffs situation. Happy Blending!

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Thanks for the additional advice! If you haven’t already, it would be nice if you had a tutorial or something that explained how to keep a laptop working in good condition for longer. I guess my concern is that I have never been the best at taking care of my hardware and it has often resulted in me having to upgrade every 5 years simply because I somehow seem to break the hardware. Naturally, because of unfortunate and totally-avoidable real life economic events, I would certainly like my current setup to last me until at least 2029.

I’d also imagine that, at some point, I’d probably have to switch to Linux because Microsoft and Windows may force me to upgrade anyway if, say, they discontinue Windows 11 and Windows 12 would only work on even beefier future hardware for no apparent reason. Not too much of a hassle, thankfully, I have installed Ubuntu Studio (which includes several FOSS art programs, including Blender) on an old hand-me-down laptop before and I enjoyed the experience very much, so I wouldn’t mind doing that again if Windows updates end up forcing my hand.

Perhaps the most immediate benefit to your optimization strategies for me, though, is the fact that working in the 3D Viewport feels vaguely more comfortable and intuitive to me now (can’t quite explain how or why), and as a result I am opening up and actually practicing with Blender more frequently, no longer feeling a vague sense of dread about even booting up Blender that I seem to have had when my scenes were a lot heavier and less optimized.

Honestly, probably the biggest “bottleneck” for me at this point is not the hardware or software, just my over-ambition when making scenes I make alone, with no help, making them needlessly detailed and work-intensive. “Scope-creep” is a real thing for 3D artists, apparently, not just for game developers. I can’t even imagine making a 3+ minute animation, yet, let alone the 10-minute animation in your example, unless I end up working for a decent-sized team…

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  • Generally speaking, desktop hardware is faster even for the same models of CPU & GPU (more computational power, can draw more W from the grid: consumes more power and more performant in general)
  • Desktop hardware last longer, also easier to replace individual pieces
  • You should learn how to run a VNC server on your desktop. Or just a simple Anydesk setup, to be honest. Now your laptop can access the power the desktop. For all you know, you might be one of those unhinged people who use a tablet with a keyboard and a mouse attached, who has a secret RTX 4080 GPU under the hood (via anydesk connection to the desktop)
  • Using Linux is always a better idea. It does not come with spyware or bloatware installed. Does not use your CPU for no reason. This decreases wear-and-tear on your electronic devices. Usually software like Blender will also run faster on Linux. Have you heard of Steam’s Proton or Wine Software? With these, you might be able to run some of your beloved Windows-only software (if you have any) on Linux.
  • In Blender, always focus on what is visible to the camera. Fake things as if that’s the real goal. Model something, take a render of the model, then put that render in the scene instead of the real model, dammit. We are not doing scientific visualization. And remember, even then, scientists use comical optimization techniques to be able to simulate real life on von Neumann machines. Like dividing a 3D space into square grids and calculating events on each square one by one. That’s not how reality works. Even the physical formulas we have, to describe the reality, are optimizations to fit our observations of the real as best as we can. Got some shiny quantum physics formulas? They don’t work in macro scale. Got some General Relativity to explain stars’ movements? They don’t work for atomic scale. Scientists wish they would, but they don’t. And yet we can invent lasers or send probes to Oort Cloud. For the time being, those formulas bring results. Basically we should focus on the results. We 3D artists don’t have any excuse not to optimize.

Final advice:

  • I am still not sure how come your laptops end up in bad condition in 5 years. I suggest that you should perhaps invest in computer cleaning kits? You can invest in one those air duster devices, use it once in a year. Obviously don’t spill things on them. Don’t let the air ways of the laptop obscured by other things.
  • There is unfortunately artificial life-time coded into all sorts of devices in the world. So they get old and consumers buy again. Usually Thinkpad laptops were very good at it. Then Lenovo bought the brand from IBM and ruined it a bit. But I heard recently that Lenovo is trying to bring Thinkpad back to its old glory. Don’t know if it is true. Basically keep an eye out for Thinkpad series, and other laptop brands that are known for being sturdy. I’d invest in those.
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