And the, for me, bad news:
Unlike the rest of the Pro series, the Samsung Galaxy Tab Pro 8.4 is powered the Snapdragon 800 chipset whatever the edition – Wi-Fi-only, 3G or LTE.
Boldfaced emphasis added by me.
So much for the CES reports that said the WiFi version would have an octa-core Exynos CPU.
This link goes straight to the Benchmarks.