dxv, and dxv3 are decoded by your gpu with resolume (4.2+ for dxv3)
all other formats are decoded by your cpu.
I took a look at the benchmark results, firepro d700 has much higher scores under windows on a mac pro, so it could be buggy osx drivers.
on osx it had a 10 layer1080p noise performance, so if you can play 2-3 4k dxv layers that would be consistent with that result.
I can play 8 layers noise 1080 on osx and 1-2 layers 4k on my 2012 macbook pro.
windows performance is much better for me too.
