You should take Nvidia's internal benchmarks with half a grain of salt. Nvidia is known to fudge it's driver benchmark results by various means. The real world performance is an unknown.
That said benchmarks on a tablet are pretty useless to begin with. Tablets are normally single use devices where you're doing only one interactive program at a time. So long as it will play video smoothly, display readable text, and replay music without chop a tablet is no different now from the first generation android tablets.
The entire question isn't how fast it is, rather it's how stable it's software will be. That is a complete unknown with a new generation processor AND a next generation software stack.
Android devices keep getting better!
I might leave Samsung for a Nexus 9.
Android devices keep getting better!
I might leave Samsung for a Nexus 9.