It looks like Samsung will be splitting the processors again like they did last year.
Don't think of this as a bad thing. Both processors will perform really well and will be an upgrade over any previous Galaxy devices and I'm just excited to get my hands on the new Galaxy S8.
The Snapdragon does beat the Exynos 8895 in Flash storage speed
(UFS 2.1 vs UFS 2.0)
But the Exynos beats the Snapdragon in video recording capability.
4K UHD @ 30fps vs 4K UHD @ 120fps