KVR Audio

pljones · Post by **pljones** » Fri Mar 03, 2017 8:27 am

DJ Warmonger wrote:512 samples at 44100 is 11 milisecond delay, so who cares?

Me. I can feel that when I'm playing MIDI drums. Anything over about 8ms start to make my subconscious wonder why I'm so far from the kit - have my arms grown..?

metamorphosis · Post by **metamorphosis** » Fri Mar 03, 2017 11:12 am

Big list of reviews:
http://www.overclockers.com.au/news.php?id=1216779

Kaine · Post by **Kaine** » Fri Mar 03, 2017 11:32 am

nIGhT-SoN wrote:We also have to keep in mind that it's a new platform, it needs some time for motherboard producers to fix most of the stuff with bios updates.

I'm confident that they'll optimize, as you say its a whole new platform and I'm sure we'll see gains over time. My concern however is that if this is bandwidth issues when the buffer overloads, then we might have to wait for the second or third revision of the chipset before they can physically resolve it.

Not wishing to be down on this at all however, as this is a stunning platform to build off. Intel's got a 7 generation head start here and plenty of refinements down, but should AMD choose to learn from the feedback they've seen from reviewers and press this week and move forward quickly, they could certainly catch up even more in a relatively short amount of time. My concern here is that they sit on the same chipset platform for the next 5 years and don't really develop it (like some of the older AM series examples), but hopefully they've learnt that lesson and its full steam ahead. We'll see in time!

PurpleSunray wrote:
Numanoid wrote:
Dominus wrote:I'd say that the numbers are definitely encouraging, as is the price. Give them a little bit of time to iron things out
Can they still iron things out when the production has started?
Yes. There lots of things theys can do.
Like, don't address the L3 cache as one big block, but as 2x8MB. Avoids traffic bettween the CCX. ect. pp
Compilers don't know about that CPU yet, neither do operating systems, driver & co

Absolutely and I look forward to see what changes they can bring.

DJ Warmonger wrote:
The CCX connects to the memory controller - which does run on RAM frequency (intel runs it near core frequency).
That's interesting, could the RAM frequency affect final performance? What was OP test run at?

We had 3000MHz in there but on the pre-launch hardware it wouldn't run above the CPU rated 2133MHz, we expect it to change with newer builds.

fluffy_little_something · Fri Mar 03, 2017 11:49 am

Are the issues to be found in the chipset or in the CPU itself, or both?

PurpleSunray · Post by **PurpleSunray** » Fri Mar 03, 2017 12:05 pm

The CPU. Modern CPUs include the memory controller.
Northbridge is history - there is no more CPU->Northbridge(chipset)->RAM link, but CPU connects to RAM directly.

Scotty · Post by **Scotty** » Fri Mar 03, 2017 12:46 pm

I really appreciate Scan Pro Audio sharing their finding with the community and for chiming in on various system threads. It is great to have professional DAW builders contributing in this way. Other reviews of Ryzen that I have read or watched just don't examine this kind of functionality.

In regard to Ryzen, getting great low latency performance is essential to me. Regardless how this shakes out with revisions and motherboard tweaks, in it's current state Ryzen puts serious pressure on Intel so we should get the benefit of better pricing/performance with the renewed competition.

- Scotty

PurpleSunray · Post by **PurpleSunray** » Fri Mar 03, 2017 3:13 pm

Kaine wrote: We had 3000MHz in there but on the pre-launch hardware it wouldn't run above the CPU rated 2133MHz, we expect it to change with newer builds.

Don't mix the data rate with the frequency.
You use DDR RAM, where the DDR stands for double data rate.
So your DDR4-2133 has a data rate of 2133MT/s (mega transfers per second) at clock frequency of 1066Mhz (half of the rate).

greg12000 · Post by **greg12000** » Fri Mar 03, 2017 5:49 pm

Kaine wrote: http://www.scanproaudio.info/2017/03/02 ... for-audio/

Great review!
These new AMDs make prices going down, on Intel side too: http://www.digitaltrends.com/computing/ ... en-launch/

nIGhT-SoN · Post by **nIGhT-SoN** » Fri Mar 03, 2017 6:34 pm

Seems there are/were some problems with some boards also with memory support:

Scotty · Post by **Scotty** » Fri Mar 03, 2017 7:28 pm

Still perplexing. Will the low latency performance improve with the memory optimization / bios tweaks or is it still anyone's guess? Thoughts from the professional builders here are appreciated. - Scotty

incubus · Post by **incubus** » Sat Mar 04, 2017 6:01 am

pljones wrote:
DJ Warmonger wrote:512 samples at 44100 is 11 milisecond delay, so who cares?
Me. I can feel that when I'm playing MIDI drums. Anything over about 8ms start to make my subconscious wonder why I'm so far from the kit - have my arms grown..?

For real, and it's absurd in todays world to be criticized for wanting the best of this world.

Why would you want lower latency? Why do you need 64 bit? Why do you need a faster chip than a celeron? Oh, and let's not forget "people made music with a tin can and paper clip, why can't you?"

Nothing personal to DJ, but it gets old.

DJ Warmonger · Post by **DJ Warmonger** » Sat Mar 04, 2017 6:20 am

incubus wrote:
pljones wrote:
DJ Warmonger wrote:512 samples at 44100 is 11 milisecond delay, so who cares?
Me. I can feel that when I'm playing MIDI drums. Anything over about 8ms start to make my subconscious wonder why I'm so far from the kit - have my arms grown..?
Why do you need 64 bit? Why do you need a faster chip than a celeron? Oh, and let's not forget "people made music with a tin can and paper clip, why can't you?"

Actually 64-bit apps can run faster thanks to AVX instructions, especially in DSP.

Personally I plan to use Ryzen to run at 88200 Hz rather than lowering the buffer. I just believe a buffer of this kind is already too short to notice.

incubus · Post by **incubus** » Sat Mar 04, 2017 6:42 am

That's cool, but it's a bitch that it runs crappy at lower latencies. I'm just interested in the facts, if ima shell out, it better be tits.

Right now, I can run at really low latencies with what I have. I can't afford (nor do I need, but wish I could) a 68/9 00. But with that I know there is not an issue.

Debutante · Post by **Debutante** » Sat Mar 04, 2017 5:22 pm

Very nice write-up Mr. Kaine. What I'd like to know is what are Ryzen's strengths? There must be some since it broke another world record today over clocked. What does it do really well?

DJ Warmonger · Post by **DJ Warmonger** » Sat Mar 04, 2017 5:29 pm

Debutante wrote:What I'd like to know is what are Ryzen's strengths? There must be some since it broke another world record today over clocked. What does it do really well?

From what I gathered:
+ Number crunching (DSP)
+ Instruction scheduler (complex, not optimized code)

And weak points:
- Memory controller (fast access or access to large data)
- Single thread performance

AMD Ryzen - Our first look and thoughts for audio.