Lenovo Ideapad L340 15 Versus Dell - G15 for Unreal Engine 5


I am just starting with Unreal Engine 5 and I need help with what laptop to buy. I already recently bought a DELL Inspiron 15 3000. It met all the requirements and recommendations that UE5 needed to run. But then I started up UE5 only to find that it was extremely laggy on a blank third person game, so I can’t imagine how bad it would be on an actual game. I have no idea why this laptop isn’t working very well for UE5, even though it met all the requirements.

I’ve been looking for a new laptop now and I am going to return the old one. I found two laptops that people have said work good for UE5, but I don’t know for sure if they work. Here they are: Lenovo: https://www.amazon.com/Lenovo-L340-15-Quad-Core-i5-9300HF/dp/B09CCZXBCG/ref=cm_cr_arp_d_pl_foot_top?ie=UTF8&th=1 — Dell: https://www.bestbuy.com/site/dell-g15-15-6-fhd-gaming-laptop-amd-ryzen-5-8gb-memory-nvidia-geforce-rtx-3050-graphics-512gb-solid-state-drive-phantom-grey-with-speckles/6461723.p?skuId=6461723 —If anybody knows which one runs UE5 well and can run a normal UE5 game without a problem, please let me know. I have no idea which one would be better so I’m hoping someone can help. Thank you in advance

If you rummage around this forum enough, you’ll find a lot of people asking about which laptop is best for the engine.

The basic advice is always the same, don’t develop on a laptop.

To be clear, it’s totally possible to do, and that laptop looks ok ( apart from drive space ), but you’re basically halving the life of your laptop by doing this.

If you’re ok buying a laptop every couple of years, then that’s fine. But most people aren’t.

If you do get it, then at least also get a cooling pad, that will help a lot.

I had a really nice laptop and literally blew it up using UE4 ( not even 5! ).


In addition to what @ClockworkOcean said, if you absolutely want to go for a laptop, try to reduce load to avoid heating up to save energy and preserve lifetime.
I also work with a quite old Fujitsu H910 Workstation Laptop (10 years old). The most important parameters for me

  • reduce frame rate by t.maxfps command (I use 10)
  • disable realtime in viewport (ctrl-R).

For blueprint and coding, this works perfectly fine - CPU and GPU load at a minimum.

But as soon as it comes to physics for example, the framerate limiting can cause issues. So be prepared for such side effects as well.

I also had to take the decision and did decide for a new Desktop machine, although I do not use it for simple things like blueprint testing, where the laptop is sufficient while consuming less energy. So most of the time I use my old notebook for energy saving reasons and preserving lifetime of the hardware, but this is only possible using these settings.


Thank you for the quick response,

I was thinking about getting a desktop, but I would like to be able to not have it limited to one spot. I want to be able to carry it around where ever I go. I will look into cooling pads for laptops. Thank you again for the helpful advice!

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Once you have the cooling pad too, it will be like lugging a small desktop around :rofl:

Yeah I also will probably get a desktop, but for now I want a laptop to be able to transport it easily. And as @ClockworkOcean said, I am also going to get a cooling pad or something to cool down the laptop better. Thank you for your help

Lol I’ve been thinking about that

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If I were you, in this two option I would prefer the dell option but with 16 GB RAM.

I would but it is a lot. I know that the more I pay the more I get but as of now I cant really afford that one. However thank you for your recommendation I will use it for future reference :slight_smile:

Ram is not very expensive but If you still can’t afford, prefer the Lenovo one because 8G RAM is not enough for these systems. And the other option is you can buy the dell one and add 8GB RAM when you can afford it.

I was thinking going with the Lenovo, then adding more RAM when I can because I’ve heard that UE5 needs as much RAM as possible.

Yes that is definitely true but the Lenovo already has 16GB RAM and it is enough. If you add more you probably won’t use them. RAM is related the CPU and the Graphic card. And you can be sure 16 GB is pretty enough for this system. I will be computer engineer in two years and you can definitely trust me :smile:

Well I will take your word for it! Thank you for your help and advice

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I received the laptop and it works great for Unreal engine 5 so far