About processors

boriar · 05-04-2015, 02:32 PM

Can someone tell me which processors use Aura HD, Aura H2O and Glo HD?

Namenlos · 05-04-2015, 03:25 PM

All are Freescale i.MX, like in almost all ebook readers. I think the H20 and probably also the Glo HD has a i.MX 6 and the Aura HD a Freescale i.MX507/508 like all the previous ones. Google should help and confirm this. But it is not like it would matter imo.

NiLuJe · 05-04-2015, 05:42 PM

iMX5 on the H2O (unfortunately).

boriar · 05-05-2015, 02:16 AM

Quote:

Originally Posted by NiLuJe

iMX5 on the H2O (unfortunately).

Seriously? Only one core?

Several other ereaders more cheap have two core, like energy sistem for example.
It isn't so important like in a tablet but... is some old chip in my opinion.

GERGE · 05-05-2015, 02:58 AM

I don't think CPU creates any kind of bottleneck while reading.

Namenlos · 05-05-2015, 06:57 AM

NiLuJe is right, it is an i.MX5 on the H2O. Interesting some reviews say it is a i.MX6 which is wrong (zee Germans

...)

Quote:

Originally Posted by boriar

Seriously? Only one core?

Several other ereaders more cheap have two core, like energy sistem for example.
It isn't so important like in a tablet but... is some old chip in my opinion.

You don't need a fast cpu, if your display is only able to display less than two frames a second. Your mentioned "Energy Sistem" tablets have LCD displays with a much higher refresh rate.

boriar · 05-05-2015, 09:43 AM

Quote:

Originally Posted by Namenlos

NiLuJe is right, it is an i.MX5 on the H2O. Interesting some reviews say it is a i.MX6 which is wrong (zee Germans

...)

You don't need a fast cpu, if your display is only able to display less than two frames a second. Your mentioned "Energy Sistem" tablets have LCD displays with a much higher refresh rate.

Nop, the energy sistem eReader Pro is a REAL eink device. I have used one myself. It has android system 4.2.2 and it's faster than H2O (mine), really. That's why I ask for the processors for kobo devices.

Edit: It has a ARM Cortex A9 dual core and iMX5 is ARM Cortex A8 monocore

boriar · 05-05-2015, 09:49 AM

Quote:

Originally Posted by GERGE

I don't think CPU creates any kind of bottleneck while reading.

Not for reading, but in the treatment of images and pages refresh

NiLuJe · 05-05-2015, 11:31 AM

The interest with the iMX chips is that they bundle the eInk controller, which is always a plus.

I seriously doubt the interest of a multi-core chip for general purposes eReaders (no multitasking, and nearly nil background work, so parallelization loses its interest), but the jump from A8 to A9 (iMX5 -> iMX6) is certainly a very noticeable bump in quality of life (at least it was on Kindles, we'll se how Kobo handled that with the Glo HD, which apparently uses an iMX6).

frostschutz · 05-06-2015, 08:05 AM

Quote:

Originally Posted by boriar

Not for reading, but in the treatment of images and pages refresh

PDF rendering can be a huge CPU hog, if it's complicated vector graphics.

For normal reading, it should not matter. Even if it takes a bit of time to render the next page, that can be done before actually flipping the page, so by the time you're done reading the current page, the next page is all ready in the cache.

boriar · 05-06-2015, 09:18 AM

Quote:

Originally Posted by frostschutz

PDF rendering can be a huge CPU hog, if it's complicated vector graphics.

For normal reading, it should not matter. Even if it takes a bit of time to render the next page, that can be done before actually flipping the page, so by the time you're done reading the current page, the next page is all ready in the cache.

That's exactly what I think. Also, if you need pass some pages (if you don't know where is something in the text, for example) quickly, there's no time to render next page in time.

Although, all of that isn't a criticism to H2O. I really love it and think it's the best (for me) at the moment but it's a big surprise that don't has a ARM A9.

Namenlos · 05-07-2015, 06:31 AM

Quote:

Originally Posted by boriar

Nop, the energy sistem eReader Pro is a REAL eink device.[…]

Interesting device, in a German price comparison I only found their tablets. Apparently Amazon sells it in Germany over a merchant which is Energy Sistem itself.

Somehow the ssh on my device is not working anymore, otherwise I would have tested how much cpu time 10 page turns cost. Would be interesting imo.

GERGE · 05-07-2015, 09:07 AM

Energy Sistem reader looks like a Boyue. I intent to buy one Boyue. Maybe I will buy from them for the guaranty.

05-04-2015, 02:32 PM	#1
boriar Evangelist Posts: 407 Karma: 314204 Join Date: Jan 2015 Device: bq Avant XL, Kobo Aura H2O, Onyx Boox M96C Plus	About processors Can someone tell me which processors use Aura HD, Aura H2O and Glo HD?

05-05-2015, 11:31 AM	#9
NiLuJe BLAM! Posts: 13,477 Karma: 26012494 Join Date: Jun 2010 Location: Paris, France Device: Kindle 2i, 3g, 4, 5w, PW, PW2, PW5; Kobo H2O, Forma, Elipsa, Sage, C2E	The interest with the iMX chips is that they bundle the eInk controller, which is always a plus. I seriously doubt the interest of a multi-core chip for general purposes eReaders (no multitasking, and nearly nil background work, so parallelization loses its interest), but the jump from A8 to A9 (iMX5 -> iMX6) is certainly a very noticeable bump in quality of life (at least it was on Kindles, we'll se how Kobo handled that with the Glo HD, which apparently uses an iMX6). Last edited by NiLuJe; 05-05-2015 at 11:34 AM.

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05-04-2015, 03:25 PM	#2
Namenlos Enthusiast Posts: 37 Karma: 10 Join Date: Jul 2014 Device: Kobo Mini	All are Freescale i.MX, like in almost all ebook readers. I think the H20 and probably also the Glo HD has a i.MX 6 and the Aura HD a Freescale i.MX507/508 like all the previous ones. Google should help and confirm this. But it is not like it would matter imo.

05-04-2015, 05:42 PM	#3
NiLuJe BLAM! Posts: 13,477 Karma: 26012494 Join Date: Jun 2010 Location: Paris, France Device: Kindle 2i, 3g, 4, 5w, PW, PW2, PW5; Kobo H2O, Forma, Elipsa, Sage, C2E	iMX5 on the H2O (unfortunately).

05-05-2015, 02:58 AM	#5
GERGE Guru Posts: 732 Karma: 5797160 Join Date: Jun 2010 Location: Istanbul Device: Kobo Libra	I don't think CPU creates any kind of bottleneck while reading.

05-07-2015, 09:07 AM	#13
GERGE Guru Posts: 732 Karma: 5797160 Join Date: Jun 2010 Location: Istanbul Device: Kobo Libra	Energy Sistem reader looks like a Boyue. I intent to buy one Boyue. Maybe I will buy from them for the guaranty.

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