Here's my Moto G reloading on 2 tabs.Make a video, I would wager there is something else going on there.
Here is the oldest Android device I can find handy. Its a Motorola Xoom, came out before the iPad 2, it has 1 gb of RAM.
I pulled up the a bunch of heavy tech webpages, apple.com etc a total of 8 heavy webpages. Not a single reload.
http://youtu.be/mR_9azDA95o
Excuse the quality, I was holding my iPhone in one hand recording and browsing with the other.
My iPad 3 chokes on 3 normal tabs. iPhone 4S can choke on 2 tabs. A reset will temporarily fix the devices. That Xoom hasn't been reset in... 167+ hours..
Image
Apple.com and TheVerge.com
http://www.youtube.com/watch?v=p6m6tvtpdrQ