XFX AMD Radeon VII 16GB HBM2, 1750 MHz Boost, 1801 MHz Peak, 3xDP 1xHDMI Pci-E 3.0 $569.99 Running on Air. Now $529.99
Shipped EK-Vector Radeon VII RGB - Nickel + Plexi ($95.99) (Now $79.99) + EK-Vector Radeon VII Backplate - Nickel ($29.99) Both for less than $150 or €113.81
Installed on;
Motherboard EVGA X299 DARK, 151-SX-E299-KR, LGA 2066
CPU Intel Core i9-7920X Skylake X 12-Core 2.9 GHz
Memory G.SKILL 4x Ripjaws V Series 32GB (4 x 8GB) F4-3600C17Q-32GVK
Replaced the EVGA GTX 1080 Ti FE Graphics Card with the EK Water Block and Back Plate.

More to Come

10 times faster than a gtx 1060!! I may have to grab one of those

https://modmymods.com/alphacool-eisblock-gpx-a-plexi-light-amd-radeon-vii-w-backplate-11693.html
 
This is the one I got with backplate for 83$

With a little OC I was doing 5 at a time all right around 50 sec, lowest one was 44.
50sec div by 5 = 10 sec a task.
 

On to Collatz Conjecture now.
https://boinc.thesonntags.com/collatz/hosts_user.php?sort=expavg_credit&rev=0&show_all=0&userid=51446
Remember to look under Application details under Each Host Details.
<app_config>
   <app>
   <name>collatz_sieve</name>
     <gpu_versions>
         <gpu_usage>1.0</gpu_usage>
         <cpu_usage>0.1</cpu_usage>
     </gpu_versions>
   </app>
</app_config>
You may want to re-check your Preferences for this project Collatz Conjecture preferences before you start them back up as well.
AMD Radeon VII  https://boinc.thesonntags.com/collatz/results.php?hostid=846493&offset=0&show_names=0&state=4&appid

 
RTX 2080 Ti XC https://boinc.thesonntags.com/collatz/results.php?hostid=840682&offset=0&show_names=0&state=4&appid

RTX 2080 Ti FTW3 https://boinc.thesonntags.com/collatz/results.php?hostid=490293&offset=0&show_names=0&state=4&appid

GTX 1080 Ti FTW3 https://boinc.thesonntags.com/collatz/results.php?hostid=830669&offset=0&show_names=0&state=4&appid

GTX 1080 Ti FE https://boinc.thesonntags.com/collatz/results.php?hostid=830666&offset=0&show_names=0&state=4&appid

Dates on or after 28 Nov 2019
AMD https://boinc.thesonntags.com/collatz/results.php?hostid=846493&offset=0&show_names=0&state=4&appid
 
GTX https://boinc.thesonntags.com/collatz/results.php?hostid=830666&offset=0&show_names=0&state=4&appid
 
 GTX https://boinc.thesonntags.com/collatz/results.php?hostid=827961&offset=0&show_names=0&state=4&appid

On to SETI @ Home now.
https://setiathome.berkeley.edu/hosts_user.php?sort=expavg_credit&rev=0&show_all=0&userid=10023376
Remember to look under Application details under Each Host Details.
<app_config>
   <app>
     <name>setiathome_v8</name>
     <gpu_versions>
         <gpu_usage>1.0</gpu_usage>
         <cpu_usage>0.1</cpu_usage>
     </gpu_versions>
   </app>
   <app>
     <name>astropulse_v7</name>
     <gpu_versions>
         <gpu_usage>1.0</gpu_usage>
         <cpu_usage>0.1</cpu_usage>
     </gpu_versions>
   </app>
</app_config>
 
AMD Radeon VII https://setiathome.berkeley.edu/results.php?hostid=8664406
 
 
GTX 1080 Ti FE https://setiathome.berkeley.edu/results.php?hostid=8440300
 
 
GTX 1080 Ti HB  https://setiathome.berkeley.edu/results.php?hostid=8485662 Ubuntu 18.04.3 LTS

the Collatz Conjecture runs nice on my Intel IGP. Uses less than 0.1 CPU thread, and the IGP is about twice as fast as my CPU.
One of the few projects that also support Intel IGPs.

On to
GPU Only AMD only shows Beta but will see if I can download some tasks before moving on. Very Slow on AMD Graphics Cards.
https://numberfields.asu.edu/NumberFields/hosts_user.php?sort=expavg_credit&rev=0&show_all=0&userid=20390
Remember to look under Application details under Each Host Details.
<app_config>
   <app>
   <name>GetDecics</name>
     <gpu_versions>
         <gpu_usage>1.0</gpu_usage>
         <cpu_usage>0.1</cpu_usage>
     </gpu_versions>
   </app>
</app_config>
AMD Radeon VII https://numberfields.asu.edu/NumberFields/results.php?hostid=1410973

 
GTX 1080 Ti FTW3 https://numberfields.asu.edu/NumberFields/results.php?hostid=92199

GTX 1080 Ti FTW3 https://numberfields.asu.edu/NumberFields/results.php?hostid=81379
 

On to Amicable Numbers being the last BOINC GPU Project that supports AMD Graphics Cards.
 
Kernel size for AMD/ATI GPUs  22* and for GTX & RTX 23*
https://sech.me/boinc/Amicable/hosts_user.php?sort=expavg_credit&rev=0&show_all=0&userid=92
Remember to look under Application details under Each Host Details.
<app_config>
   <app>
   <name>amicable_10_21</name>
     <gpu_versions>
         <gpu_usage>1.0</gpu_usage>
         <cpu_usage>0.2</cpu_usage>
     </gpu_versions>
   </app>
</app_config>
AMD Radeon VII https://sech.me/boinc/Amicable/results.php?hostid=66528
   
GTX 1080 Ti FTW3 https://sech.me/boinc/Amicable/results.php?hostid=86864 X299
 
GTX 1080 Ti FTW3 https://sech.me/boinc/Amicable/results.php?hostid=30395 Z370
 
 
GTX 1080 Ti FE https://sech.me/boinc/Amicable/results.php?hostid=26107

 
* The Default is 21.
 

Amicable Numbers
RTX 2080 Ti FTW3 https://sech.me/boinc/Amicable/results.php?hostid=1718
 

PG Running GFN Prime Search (n=17 Mega) - (GFN 21)
Running AP27 AP27 is Over for Now.
 
GTX 1080 Ti HB https://www.primegrid.com/results.php?hostid=917582 Ubuntu 18.04.3 LTS
 
RTX 2080 Ti FTW3  https://www.primegrid.com/results.php?hostid=502676
 
RTX 2080 Ti XC https://www.primegrid.com/results.php?hostid=939093

Added the EK Water Block.
Temperature Running Moo! (Image) and on air the Hotspot would be over 108°C and the GPU in the in the Upper 60°C to the Lower 70°C
Room Temperature 64°F (17.77°C) Water 24-25°C Temperature TM used was TFX.

 
Idle Temperature
Now this card is ready for Aussie, Aussie, Aussie! Oi! Oi! Oi! Summer Solstice Challenge over on PG *GFN Prime Search (n=21)

ProDigit
I'm running milkyway on RTX 2060 GPUs, and the max overclock on those (regular overclock = 100-150Mhz) on milkyway is 15-30Mhz.
This makes my cards run at 2050Mhz.
The power consumption is very similar to AMD for these projects, at 60-90W (I cap them off at 125W).
 
When you define Milkyway tasks as '0.1 CPU', does it get different tasks? Because mine is set to like 0.9GPU (even if it actually uses less than 0.2GPU).

Need to know what Settings you are using in your app_config.xml file also you are not running Windows so you will not see the same.
Your Computers are hidden so we have no way to compare and review your results.
See Post #6 for the Wattage used for Milkyway 214 Watts @ 6 Tasks, it is not using 60-90 Watts.
0.9 is the Default but in the end it make no difference when running Milkyway the Settings that makes the Difference in the GPU Setting.
Also the AMD Graphics Card is running Double Precision *** and your RTX 2060 is not running Double Precision.
I Tested on my GTX and RTX Cards but this thread is really only about the AMD Graphics Card see Post #2 for results.
Here are more Threads about POTM November - MilkyWay@home  &
MilkyWay@Home + GTX Titan = Double Precision &  When to Use Double Precision under NVIDIA Control Panel Manage 3D Settings
BOINC app_config.xml file settings for GPU Projects & Multiple Tasks on GPU for HCC 
When running GPU Tasks you only get GPU Tasks Milkyway @ home Separation v1.46 (opencl_nvidia_101) windows_x86_64
Application details Show
An AMD Graphics Card will get a Different Task Link Milkyway @ home Separation v1.46 (opencl_ati_101) windows_x86_64
Application details Show
Ubuntu 18.04.3 LTS Milkyway@home Separation v1.46 (opencl_nvidia_101) x86_64-pc-linux-gnu Results
You can compare your NVIDIA RTX 2060 to my GTX 1080 Link to compare or my AMD Graphics Card here Link 
Look under "Task click for details" under Stderr output
My Settings used are listed for my AMD & NVIDUA Graphics Cards as posted in #2 for the Settings used and Results.
 
*** Double Precision is also why I wanted this Graphics Card for Running BOINC Projects.