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Up Topic The Rybka Lounge / Computer Chess / mini computer for chess
- - By gsgs (***) Date 2019-07-11 03:16 Edited 2019-07-11 03:19

> Odroid-N2: New single board computer is more than five times faster than the Raspberry Pi 3
> Khadas VIM3 also with this CPU :


Orange pi3 , 4xA53~800 kn/s , $40


> The Rock960 is now available in the 1-GByte version for 69 US-Dollar.  [similar CPU like odroid]

2400 kn/s at 6W for Cfish-271218-arm64-pgo under DroidFish in Android (with mouse) on Odroid-N2

similar to ArmFish , kn/s first goes up to about 2600 , then slowly down ,
after approx. 20min at 2429

the Odroid-N2 has 2400kn/s at 6W for
80Euro + 6Euro (power supply) + 7Euro (case) + 17Euro(Android)+5Euro(mouse)+5Euro(HDMI cable)
+10Euro(keyboard) = 130Euro
= about 2-3 times as much as my x86-Intel-Z3735 tablets with 1600kn/s at 5W

but runs without a battery, which can inflate (in the summer with bad cooling
in continuous operation)
requires a HDMI TV or monitor

= a little less than my used Huawei Mediapad M3 for 170 Euro the
approx. 3100 kn/s in continuous operation at 5W
the Odroid-N2 has switched off after approx. 1-2 hours - 0W .
Then I lowered the threads on DroidFish from 6 to 4 and now it runs a bit faster !
With about 2460 kn/s in the starting position, even after 2 hours.
However, he switched himself off overnight. Obviously not crashed
(as my Ryzen does regularly under Ubuntu, Knoppix and Linuxmint)
but switched off, because no laempchen burns any more and the wattmeter is at 0.
(in the "idle" state it will otherwise display 2.5W). So I downgraded threads to 3
in DroidFish, there he makes 1880 kn/s ; let's see how long ...


The Teclast M89 with Helio X27 processor at Ebay for 140 Euro should give about 3000 kn/s,
but they're probably throttled down in continuous operation,
maybe 2000-2500, I'm guessing.
There are again several offers on Ebay for tablets
with "10core MT6797" (=Helio X20) for 55Euro from China , but I had bought one of those and
that had only 4 cores arm7


So, the best is my 3 year old Z3735 tablets for <50Euro ,
except the Tolino-Tab 8 customer returns for 20Euro without power supply
with a weak battery of which I got about 70% to work, most of them with a
but now with a full battery. All with Z3735 and 1600 kn/s
in continuous operation at 5W .
(1/3 as many kn/s/W as my Ryzen 1700x)
Well, the raspberry 4B had arrived.
Aahh, you probably need an "usb-c" adapter for the power supply, the way I see it.
And the hdmi plug must now be mini or micro at one end. There are also adapters.
Hopefully the keyboard and mouse and software and Android and Droidfish will fit.
Well, it will take a few more days plus a few hours trouble with me ... just like usual.


    > It's essentially a USB 2.0 port with a USB-C connector.

> the CC resistors on the connector are wrong so it wont work with e-marked cables often found
> on PD enabled chargers (There is a forum thread here about this issue

Translated with
Parent - - By user923005 (****) Date 2019-07-11 06:22
a curious thing:
What complete system gives the most nodes per second per dollar?
If it can plug into a tv, we don't need a monitor cost

If it has a touchscreen that is easy to use, a keyboard is not required

Is it a cell phone?
Is it a tiny linux box like those raspberries?

I guess my used server machine might qualify.  Less than $700 and 47M NPS.  But then you add in the $800 soundproof box and the $200/month for electricity and then the ratio does not look so great
Parent - - By gsgs (***) Date 2019-07-11 07:53
For some time I think it was the Z3735 tablets, before Ryzens came.

Your system is used, that's another issue.
And you may win in kn/s/price but price is not fixed, is no physical unit.

I'm mainly interested in kn/s/power


In 1999 I did this eternity-puzzle with 20 AMD K6-250 at 300 Euro per board running at 40W , keyboard, monitor,
graphiccards , RAMs, floppies removed after booting and shared between them.
That was probably the best for computing power in 1999, biggest mistake in my life, that I only had got 20.

Someone was doing the eternity-II  puzzle with lots of "Orange Pi" s some years ago
Parent - By gsgs (***) Date 2019-07-11 13:33 Edited 2019-07-13 09:23
I got and tested one of those :
1600 kn/s in the startposition at 5W with AsmFish under DroidFish for $46
plus a tablet , 10'' , touchscreen, internet, Android, Battery

Similar in price and power to what I got in 2016, but 10'' instead of 7''
and asmFish is ~180 Elo better now or 16 times faster

the cheapest new Ryzen 1700x - PC costs ~$600 and has 19000kn/s at ~150W ,
no monitor , the tablet has 10% more kn/s/$ and 150% more kn/s/W

geekbench,kn/s,price($),name [add Watts]
2128,0400,30+,pi 3B
----,----,45+,pi 4B
Parent - - By user923005 (****) Date 2019-07-11 16:57
What is the eternity-puzzle?
Parent - By gsgs (***) Date 2019-07-11 17:13 Edited 2019-07-11 17:19

some time I still want to find some thousand solutions with modern hardware,
so far we have 12 and found ~1 solution per week in 2003
Up Topic The Rybka Lounge / Computer Chess / mini computer for chess

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