U4, retro and system requirements

[Shadowriver]

@mahri726;455881

I use UE4 editor on a really old system and it works ok on simple scenes, but it laggs on more complex ones, like Cave or Temple demos.

Here are my specs:
CPU: intel core 2 duo 2.66 GHZ (dual core)
GPU: Nvidia Geforce 8600GT with 1GB vram
Ram : 6GB

  Hopefully, UE4 supports DX10, otherwise it wouldn't work. A game requires less resources than the game+editor. In your case, I think you could build a game in UE4 to run on an older machine. You should experiment and see. 

In my case, until I get a new PC, I’m using this one for learning and simple games.

Also, here is a video with UT4, running on Intel 3000, a integrated GPU with lower performance than mine:

Unreal Tournament 4 on Intel HD Graphics 3000: http://youtu.be/OQLnObqKoQI

Woooo that even older then my and i have 2GB RAM less, Core2Quad Q9xxx, GF9600GT

One note, UE4 only has DX11 renderer (aside of OpenGL3.0/4.0 which can also be used on Windows if you start editor with -opengl or -opengl4), but DX11 support SM4.0 GPUs simply some features won’t work (most notably Tesselation), same with DX12 as long GPU manufacture update driver. GPU don’t have anything to do with DirectX (this is something that was brainwashed to people in DX10/Vista marketing), its DirectX that operates GPU and it’s depends on DirectX on what GPU it supports, or rether what features of GPU it supports