blender Would 4x RTX 2080ti beat a TR 3990x in blender?

[Bombastinator]

3 minutes ago, BigPig said:

Dude! I don't know if you realize but you're only polluting this thread with your egocentric useless replays, with all the respect... but if you don't have a valid answer let's leave it for somebody else. 

Maybe someone who already own a TR 3990x in this forum can run a render of an available blender scene and provide us with the render time. 

Some people including myself have already tried GPU rendering and aren't pleased with it, so we need to know a couple of things before investing $4000 on a CPU. 

No on CAN have a useful answer.  That’s the point.  A gpu can’t run without a cpu.

[BigPig]

6 minutes ago, Bombastinator said:

No on CAN have a useful answer.  That’s the point.  A gpu can’t run without a cpu.

yeah that's obvious, but you don't need to completely disable one to render with another. 
All it takes is just to specify for Cycles (the render engine) which device you're going to render with (either CPU or GPU)
a person with a TR 3990x and 4x2080ti will do firstly a render with CPU only, and another one with GPU only, than show us the time of each one, that's all, it's not complicated. 

[straight_stewie]

10 hours ago, BigPig said:

I want to revive this thread because there's no clear answer yet, would 4 2080ti beat a threadripper 3990x for rendering (let's say) the classroom scene in blender using cycles ?  

A single mainstream graphics card of any type will beat any modern 86-64 processor in any non-trivial modern graphics rendering task.

 

9 hours ago, BigPig said:

Some people including myself have already tried GPU rendering and aren't pleased with it

Why weren't you pleased with it?

If your graphics card wasn't outperforming your processor for rendering tasks, there was a configuration issue somewhere. What specifically was going on with your testing?

 

Anecdotally, my GTX960M outperforms my i7-6700HQ every time I've used Blender, even in the very trivial scenes I work with.

[BigPig]

Someone happened to have the needed build (watercooled also) on a Facebook group, here's his comparison:

TR 3990x : 1m18s

4x2080TI :  27s 

 

@straight_stewie I wasn't pleased with it because of all its issues; like the Vram limitations even though I have 2x2080ti I need to do a lot of optimization in my 3D works to stay within the memory budget, the lack of features in GPU render engines compared to CPU ones, the noise and high power consumption of GPUs...

but also (I know its crazy to believe) but in Arnold renderer my 5 years old i7 5960x performs much better than my dual 2080TI. even though Arnold has been taking advantage of RTX tech lately. it's still clunky AF with GPU, so it depends on the renderer I guess...