I already have version 8. I did buy 9 later, and just bought the upgrade to Pro Elite 10. I believe Elite does the FX framed images, and Pro only does smaller sensor images.
I shot 350 NEF files on a D800E down in a gold mine last Thursday which averaged around 76,000 KB in size each. I ran them all through DxO Optics Pro Elite 10 into TIFF files using their PRIME engine. Took about 5 hours to do them all as PRIME does slow it down. Each image grew to about 212,000 KB in size for TIFF. It did all the noise reduction, lens distortion corrections, etc. Images look pretty good from first pass.
SG