CPU for Agisoft, i9700K vs. i9900K?

[lieti]

Hi,
I'm considering to buy new laptop for field processing  (64 GB RAM, GTX 1070,SSD).
I can order laptop with CPU i9700K (3.6Ghz to 4.9Ghz, 12MB Cache, 95W, 8 Cores, 8 Threads),
or with i9900k (3.6Ghz to 5.0Ghz, 16MB Cache, 95W, 8 Cores, 16 Threads).
Price difference is around 120€.
It is worthy to have 2xmore threads and bigger cache? Or it is better to put that money to something else (e.g. another SSD just for photogrammetic data)?
Thanks in advance.