Well, i do have a raspi 1 B+ but i don’t see any interest of making this test. We don’t really need tools to see that it’s faster on raspi 3. 
If you ask because you want to know if it’s worth to buy a 3 instead of 1 or 2 for nextcloud, i can say yes, it worth, without any doubt. My configuration were different on raspi 1 but so slow that i bought a 3 after 2 days.