Quote - Users of older computers will of course also benefit from a number of improvements. The tiled texture cache severly reduces the memory footprint of the renderer, so you can put a lot more textures and bigger textures in your scenes than ever before, without running out of memory. The improved raytracer and the irradiance cache can significantly speed up the rendering of scenes that use ambient occlusion. Occlusion culling and the improved depth of field also provide a better rendering experience on old and new computers.

There's something to think about.  Mine's only 4 1/2 years old and using P6 can be a chore if one's rendering so many things in one scene.  I hope it's true though.

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Asus N50-600 - Intel Core i5-8400 CPU @ 2.80GHz · Windows 10 Home/11 upgrade 64-bit · 16GB DDR4 RAM · 1TB SSD and 1TB HDD; Graphics: NVIDIA Geforce GTX 1060 - 6GB GDDR5 VRAM; Software: Poser Pro 11x