by Charles Ying

Can I get a JooJoo with a GPU?

December 8th, 2009

From watching videos of JooJoo, UI latency and scrolling performance look awful.

It seems that all rendering is done on the CPU, when it should’ve been on a GPU accelerated compositor or tiled surface manager.

That would save significant battery life (which we haven’t heard anything about) and really kick ass at performance.

Offloading rendering to the GPU also frees you up to, oh, say, reliably detect touch input events.

System on Chip GPU + CPU combos are fairly inexpensive parts these days. Even with a GPU as simple as the first gen iPhone PowerVR MBX lite would’ve had reasonable performance.

UI latency and scrolling performance make all the difference in multi-touch form factor devices. A true multi-touch contender needs to get this right.


I just realized that JooJoo plays video smoothly at 1080p. So they definitely have a GPU or DSP in there. They’re so close, they just need to get the software up to snuff, maybe with Clutter?

More Reading: On Mobile Phone OS Design and GPUs

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One Response to “Can I get a JooJoo with a GPU?”

  1. Dmitry Says:

    Agree 100%. Jaggy, laggy scrolling and UI totally ruins user experience. Even if you have a great design and great polish on the interface, as soon as it starts to lag all the experience you’ve built up goes out the window — it’s just unpleasant to use. That’s why the iPhone is one of the few phones that gets it right — Apple made sure that every transition was polished and scrolling was very smooth.

    It’s also sad to see that the touch detection on that keyboard is poor (at least from that video). Having to push the same keys over and over to get them to recognize is just terrible. So looking forward to a good tablet device like this to browse the net. Don’t care about the stupid name or the high price, but having to suffer a laggy UI is a deal breaker :(