Better wait for iClone 8. But in any case, anyone considering rendering short animations with Iray, read further:
Regarding hardware, when it comes to Iray render speed, nothing else matter that much, other than *Compute* speed of your GPU and the number of them.
Compare various options here: https://render.otoy.com/octanebench/results.php
The next important parameter is VRAM. And it is relevant to the density of your scene. For overly dense scenes with hi-res texture, consider setting custom Max Texture Size and Compression in Preferences.
In case of multiple GPUs, the VRAM is not combined, because scene is loaded into each GPU VRAM separately.
I personally have a pair of 1080TI (11GB) and here is some render specs I did a while ago: https://forum.reallusion.com/404350/Moonshine-Theater-UFO-Abduction-Iray
Quick guidance for rendering animation in case you buy it:
Optimal number of samples is between 200 - 400
Always use Denoiser. Though Denoiser in some cases might produce motion artifacts on some texture, in which case increasing samples would require.
Always use Nominal Luminance filter. It does help killing "firefly" artifacts faster. Experiment with best possible value.
You want to use Photoreal mode. Interactive mode does not render emissive objects and produces a lot more motion artifacts.
Test a lot. Render various frames from animation. When found optimal settings do the final test animation render by setting frame rate to 1. That would fairly quickly render entire animation for frames review purpose.
Consider rendering to PNG with lower resolution and then upscale images with Topaz Gigapixel AI. In most cases it does produce satisfactory results.
Last Year by