Ok here are my findings re DPC tested in win 7 all @ stock settings & OC.
For reference
Intel system 4790k ud5h motherboard DPC latency 30 to 50
Now for the MSI tomahawk motherboard and Ryzen 1700
Stock bios v100 (Official) DPC latency 155 to 250 Its usable but can be improved
Bios v110 (Official) DPC latency 180 to 740+
Bios (Beta) v131 DPC latency 180 to 760+
Latest Official bios not good for audio production a little on the high side of DPC
https://www.reddit.com/r/Amd/commen...os_overview/?sort=new&st=j0ti7cbo&sh=30e93d79
To test make sure you use the right program for the OS you are using
Win 7 Dpc latency checker
http://www.thesycon.de/eng/latency_check.shtml
Win 8+ 10 Use latency Mon
http://www.majorgeeks.com/files/details/latencymon.html
Now here is the strange thing if i put Ryzen pc to sleep and wake back up and re run DPC i then get 160 to 260 on the same bios that was giving me 180 to 740+ DPC so there is clearly an issue with something timer RTC maybe
------------------------------------------------------------------------------------------------------------
Here is my bit of rough testing with Ryzen and audio production
FIGHT NIGHT....
Weighing in
Intel 4790k @ 4.7GHZ
32GB 2400Mhz ddr3
Gigabyte z97 ud5h (DPC latency between 30 / 50 )
Vs
Ryzen 1700..... non x @ 3.2GHZ STOCK and tested on out of the box bios
16GB 2133Mhz ddr4
MSI B350 Tomahawk (DPC latency between 155 / 250 )
Both systems running an RME 9632 & Asus xonar st under win 7
All systems High performance mode and with cpu parking disabled
BATTLE GROUND
Image-Line Fruity loops
running @ 96Khz
ASIO For all & RME ASIO
Buffer size 512
Running 19 Stereo tracks & 7 Mono Tracks All @ 96Khz
14 Tracks Uhe DIVA polyphonic presets in Divne mode with multicore ticked
2 Stereo Tracks Omnisphere 2 polyphonic presets
3 Strereo Sample tracks Drum Loops
7 Mono Tracks of percussion Kicks,snare,hi hats, claps,Toms ect
8 Efx reverbs, delays ,tape saturations , compressor & limiters ... Sends returns & side-chains
The Intel i7 4790k craps out @ about 97% cpu usage audio glitches buffer under-runs
The AMD Ryzen 1700 still running & with only 46% / 48% usage
So i am able to increase the track count to all most double with the 1700 until audio glitches buffer under-runs appear this was with cpu usage @85% so its a bit strange that it craps out with only being at 85%... i am hoping micro code bios updates will solve this issue ...
To add
The 7700k @ 4.8Ghz with the above settings is still going strong but at 91/93% cpu usage add a few more tracks and i hit 97/98% usage then we get audio glitches buffer under runs
So you can clearly see here with this Info that the 1700 for more a less the same cost as the I7's is the clear winner and bare in mind the ryzen is at stock with stock bios lame memory settings and far worse DPC latency so worse case setup out of the box and it shines ...i am very impressed with ryzen .
Clear winner as of 2/3/17 and improving is the 1700 non x
For me its a gift from AMD..which enables me to have around double the track count which means i can do away with my 3 DAW pc setup and use 2 x 1700 setup and have even more cpu grunt..
And with using less power from the wall while doing so
Yes things all-so improve once you clock up the Ryzens to 3.7/3.9 ect
Interesting for what's to come with Ryzen maturing
For reference
Intel system 4790k ud5h motherboard DPC latency 30 to 50
Now for the MSI tomahawk motherboard and Ryzen 1700
Stock bios v100 (Official) DPC latency 155 to 250 Its usable but can be improved
Bios v110 (Official) DPC latency 180 to 740+
Bios (Beta) v131 DPC latency 180 to 760+
Latest Official bios not good for audio production a little on the high side of DPC
https://www.reddit.com/r/Amd/commen...os_overview/?sort=new&st=j0ti7cbo&sh=30e93d79
To test make sure you use the right program for the OS you are using
Win 7 Dpc latency checker
http://www.thesycon.de/eng/latency_check.shtml
Win 8+ 10 Use latency Mon
http://www.majorgeeks.com/files/details/latencymon.html
Now here is the strange thing if i put Ryzen pc to sleep and wake back up and re run DPC i then get 160 to 260 on the same bios that was giving me 180 to 740+ DPC so there is clearly an issue with something timer RTC maybe
------------------------------------------------------------------------------------------------------------
Here is my bit of rough testing with Ryzen and audio production
FIGHT NIGHT....
Weighing in
Intel 4790k @ 4.7GHZ
32GB 2400Mhz ddr3
Gigabyte z97 ud5h (DPC latency between 30 / 50 )
Vs
Ryzen 1700..... non x @ 3.2GHZ STOCK and tested on out of the box bios
16GB 2133Mhz ddr4
MSI B350 Tomahawk (DPC latency between 155 / 250 )
Both systems running an RME 9632 & Asus xonar st under win 7
All systems High performance mode and with cpu parking disabled
BATTLE GROUND
Image-Line Fruity loops
running @ 96Khz
ASIO For all & RME ASIO
Buffer size 512
Running 19 Stereo tracks & 7 Mono Tracks All @ 96Khz
14 Tracks Uhe DIVA polyphonic presets in Divne mode with multicore ticked
2 Stereo Tracks Omnisphere 2 polyphonic presets
3 Strereo Sample tracks Drum Loops
7 Mono Tracks of percussion Kicks,snare,hi hats, claps,Toms ect
8 Efx reverbs, delays ,tape saturations , compressor & limiters ... Sends returns & side-chains
The Intel i7 4790k craps out @ about 97% cpu usage audio glitches buffer under-runs
The AMD Ryzen 1700 still running & with only 46% / 48% usage
So i am able to increase the track count to all most double with the 1700 until audio glitches buffer under-runs appear this was with cpu usage @85% so its a bit strange that it craps out with only being at 85%... i am hoping micro code bios updates will solve this issue ...
To add
The 7700k @ 4.8Ghz with the above settings is still going strong but at 91/93% cpu usage add a few more tracks and i hit 97/98% usage then we get audio glitches buffer under runs
So you can clearly see here with this Info that the 1700 for more a less the same cost as the I7's is the clear winner and bare in mind the ryzen is at stock with stock bios lame memory settings and far worse DPC latency so worse case setup out of the box and it shines ...i am very impressed with ryzen .
Clear winner as of 2/3/17 and improving is the 1700 non x
For me its a gift from AMD..which enables me to have around double the track count which means i can do away with my 3 DAW pc setup and use 2 x 1700 setup and have even more cpu grunt..
And with using less power from the wall while doing so
Yes things all-so improve once you clock up the Ryzens to 3.7/3.9 ect
Interesting for what's to come with Ryzen maturing