Excellent Question and then for the Answer. I was wondering of that as well. I think for a 3rd person mini game which I am getting ready to go into productions soon, an I5 4 core would do fine. I think even and 4th gen i3 would be fine.
You setup your lighting how you want it to be and when you’re ready you can Build Lighting, it will then calculate high quality GI lighting and render to lightmaps. When you’re done with your game it can package the game to make an .exe but at that point the lighting is already built.
It really depends on the size of your level and the complexity of your meshes, both of which shouldn’t be an in your case (for iOS games). It will take 2x longer to build the lighting with a 2 core processor compared to a 4, but it shouldn’t be a big problem in your case again. I would personally get a quad core in your situation since a year from now who knows where mobile games will be at graphically, plan for the future I say.
At first when I read 1.4GHz I was ready to say no way, but it looks like it runs at that speed as a power saving measure, with a 2.7GHz turbo speed. Intel HD graphics usually don’t play well with UE4, the HD 3000 won’t even run on the PC side, and the 4000 series has difficulties on the mac side. I haven’t heard any users reporting on the HD 5000 so far but there may be some in here, have a look through so you can see how a comparable system will run UE4. If you turn down all of the graphics options in UE4 it might work, but it will most likely still be really slow.
If the mini had a better graphics card I would say it would work for sure, but I can’t guarantee you will be able to work without issues in UE4 on those specs. Sorry to be the bearer of bad news…
These are the recommended specs from Epic:
But since you are getting one anyways, it would be great if you could let us know how well it works! I’m sure there are many others wondering about .
Performance will not be great, but it will run. I think they’ve fixed the recently, but you may even get better performance if you install Windows on there (Bootcamp), there were issues in the past that UE4 on Mac ran slower on the same hardware, but I think they may have fixed that.
Not sure about Mac’s but with PC’s and DirectX 12 coming out soon, more cores is the way to go.
At the moment most none Mantle game engines use a main or single rendering thread/one core and farm out tasks/threads to other cores. Mantle and DirectX 12 allow all the cores to feed the GPU as well as optimising the information sent between the CPU and GPU.
Result massive ‘Free’ boost in performance.
Check out the Microsoft DirectX 12 video where they adapt a 3DMark test to use DirectX12 and go from a main thread/core taking 6-7 ms a frame down to 2-3 ms a frame. So that 3DMark is twice as fast on the same hardware!
I’m guessing that’s running on a quad core CPU.
More cores spreads the load on engines that support DirectX 12.
Hopefully OpenGL Next(?) will be out soon as well.