Tablet speed for image processing

[Alfred Molon]

Usually the CPU speed of tablets is given in "Antutu". For instance, the
Lenovo Tab P11 Pro Gen 2 has an Antutu of 607789 according to
https://www.kimovil.com/en/lenovo-tab-p11-pro-2022/antutu#:~:text=What%20is%20the%20antutu%20scoring%20of%20Lenovo%20Tab,Antutu%20v9%20Antutu%20better%20than%2083%25%20of%20smartphones

while the speed of x86 CPUs is given in "CPU Mark". For instance, the
Intel Core i5-1340P has a CPU Mark of 20629:
https://www.cpubenchmark.net/cpu.php?cpu=Intel+Core+i5-1340P&id=5237

How to compare Antutu with CPU Mark?

I'm trying to understand how much Antutu a tablet needs to process RAW
image files (in case I want to use a tablet to replace a notebook PC
when travelling).
--
Alfred Molon

Olympus 4/3 and micro 4/3 cameras forum at
https://groups.io/g/myolympus
https://myolympus.org/ photo sharing site

[Alan Browne]

On 2023-09-16 06:01, Alfred Molon wrote:
> Usually the CPU speed of tablets is given in "Antutu". For instance, the
> Lenovo Tab P11 Pro Gen 2 has an Antutu of 607789 according to
> https://www.kimovil.com/en/lenovo-tab-p11-pro-2022/antutu#:~:text=What%20is%20the%20antutu%20scoring%20of%20Lenovo%20Tab,Antutu%20v9%20Antutu%20better%20than%2083%25%20of%20smartphones
>
> while the speed of x86 CPUs is given in "CPU Mark". For instance, the
> Intel Core i5-1340P has a CPU Mark of 20629:
> https://www.cpubenchmark.net/cpu.php?cpu=Intel+Core+i5-1340P&id=5237
>
> How to compare Antutu with CPU Mark?

Not easy. Most tablets have several high performance cores, low power
cores, GPU cores, etc.
So there is little you can do to compare them based on clock speeds.
Further of course, most (all?) tablets are ARM based (including Apple
iPad).

ARM instructions are processed differently. So what an i5 or i7 will do
in 2 clock cycles is often more (but not always) than what an ARM
processor does in 2 clock cycles. ARM also make up for this with many
clever tricks.

> I'm trying to understand how much Antutu a tablet needs to process RAW
> image files (in case I want to use a tablet to replace a notebook PC
> when travelling).

Get an iPad Pro and don't worry about it.

https://youtu.be/sfadbDWX4wU might prove informative.

--
“If you torture the data long enough, it will confess to anything."
-Ronald Coase

[David Taylor]

On 16/09/2023 16:47, Alan Browne wrote:
> Get an iPad Pro and don't worry about it.

That would be my off-the-cuff suggestion as well.

Be aware that the free Microsoft Word/Excel etc. have limited support on the
iPad Pro versions compared to a standard iPad. I don't know what image
processing programs you intend to use, gut I would look at the Serif Affinity
suite which is a one-off purchase and not a rental.
--
Cheers,
David
Web: https://www.satsignal.eu

[nospam]

In article <ue4oo3$3ls7c$2...@dont-email.me>, David Taylor

<david-...@blueyonder.co.uk.invalid> wrote:

> Be aware that the free Microsoft Word/Excel etc. have limited support on the
> iPad Pro versions compared to a standard iPad.

rubbish.

[Alfred Molon]

Well, I just gave a try to Adobe Lightroom on my Samsung M52 phone
(Antutu score 520000). I used 20MP RAW files.

Seems that the processing speed is more than sufficient. When I moved
the sliders of the various settings, the changes in the preview were
instantaneous (I guess the small size of the preview might have played a
role). Saving the image to JPEG after editing took a few seconds.

Then I tried Lightroom on the tablet of my daughter (Lenovo Tab P11 Pro,
Antutu score 607000). Also there the changes were practically instant.

So apparently a phone or tablet with 500K Antutu is fast enough for this
kind of image processing.

An iPad 12 pro (> 1100 Euro here in Germany) is not needed. A Lenovo Tab
P12 for instance (Antutu 520000, 384 Euro) or a Samsung Tab S8 (Antutu
1039906, 639 Euro) might be sufficient.

A question is how to calibrate the screen. Not sure I can use my X-rite
device.

The other thing is that PTGUI (pano stitching) doesn't seem to exist as
an Android app.

[nospam]

In article <0mmNM.64952$vGnf....@fx15.ams1>, Alfred Molon

<alfred...@yahoo.com> wrote:

> An iPad 12 pro (> 1100 Euro here in Germany) is not needed. A Lenovo Tab
> P12 for instance (Antutu 520000, 384 Euro) or a Samsung Tab S8 (Antutu
> 1039906, 639 Euro) might be sufficient.

no need for an ipad pro. an m1 ipad air would be sufficient, maybe even
the entry level ipad.

> A question is how to calibrate the screen. Not sure I can use my X-rite
> device.

ios devices are individually calibrated at the factory.

> The other thing is that PTGUI (pano stitching) doesn't seem to exist as
> an Android app.

numerous options on ios.

[RichA]

On Saturday, 16 September 2023 at 14:20:51 UTC-4, Alfred Molon wrote:
> Well, I just gave a try to Adobe Lightroom on my Samsung M52 phone
> (Antutu score 520000). I used 20MP RAW files.
>
> Seems that the processing speed is more than sufficient.

This must be pre-planned and fixed image modifications because the idea of looking at a screen
on a phone and making judgments (maybe other than cropping) on what an image needs seems
a bit far-fetched.

[Alfred Molon]

Well, my phone has a 6.7" screen, so not that tiny.
I could show you what I did. White balance, exposure, contrast,
saturation etc. all worked easily.
To adjust noise reduction and sharpness you just zoom into the image.

So, editing a RAW file on a smartphone is definitely doable, although
you might not want to do it for a large number of RAW files.

[Alan Browne]

His O/P was for a tablet - he's just testing on a phone to get a feel
for ability.

--
“Markets can remain irrational longer than your can remain solvent.”
- John Maynard Keynes.