Ouch! This is from a test published at the IMP3Net forum [Google Translate].
The video after the break looks very bad.
What I think is going on is that the software being used hasn’t been written to taken into account an octa-core CPU. And someone in the IMP3Net forum points out that the app in question might be using the lower-power cores since PDF reading is — ha! ha! — considered undemanding.
The test file is a 151MB PDF. The smaller tablet is using the Rockchip 3066 CPU, the larger tablet is the octa-core Allwinner A80-based Onda V989.
As a contrast, here’s the Xiaomi MiPad handling a very demanding PDF (size of the PDF is unknown, but being filled with images, it must be large — it might also be the same PDF as above):
That even the Xiaomi MiPad — with its blistering K1 CPU — momentarily displays a blank pageholder is distressing.
I think PDF reading software developers have to modify their apps to take advantage of this new generation of CPUs from Nvidia, Rockchip, and Allwinner.
They should have user-selectable options to call upon the more powerful cores to increase reading performance even if that means a bit of a battery hit.
It might seem like a small thing to have to wait a second — or even a fraction thereof — to resolve a PDF page, but those seconds add up when dealing with reading thousands of pages. No one would tolerate such a delay in any other kind of tablet or desktop PC use — and PDF readers shouldn’t have to, either.
(For newcomers, my primary use for a tablet would be to read Google Books PDFs, which can be huge — some approach 1GB. Also, they’re scans of pages, so they really hammer a CPU. See the Google Books PDF category.)
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