I don't think a semi will give the same results
But for the purest engine experience, displacement has no replacement. All other methods are simply attempts to artificially recreate the benefits of displacement.
Can't beat the big red book of nonsense ! I got one from ebay for £9, 2nd hand but almost unused it was pretty perfect bar a crease down the spine. It will save printing a page out when you need it and you won't have to run inside every couple of minutes to look at the digital version and get your keyboard/mouse greased up