Build New System - Dual or Quad Core?

is it still the case that hyperthreading isn’t supported?

almost went core i7 but opted for a budget upgrade instead (q6700), renoise was my main factor in going quad

I tend to use 3 or 4 send tracks in a tune as it helps separate sounds to gel sometimes by processing them together.

in any case I’m sure it’s going to feel like a hotrod upgrade anyway coming from a single core athlon 3000

i’ve just made a quick video and uploaded it to youtube, showcasing the change in CPU load when adding or removing cores from/to renoise’s audio engine on a quadcore.

as you can see, there definately is a great difference in performance between the different amount of utilized cores (in this ideal scenario at least).

http://de.youtube.com/watch?v=8Ex4Y78KVeg

oops

Just for shits n grins… I decided to do a little test on my 16 core rig…

System has 4 x opteron 8347 (1.9ghz), 16 gb ram
and after some rummaging around in boxes, a soundblaster live 5.1 digital
and after some time spent playing “find that driver” I killed the end of level bad guy and had a working soundcard under server 2k8…

So I set up 16 tracks, each with its own vst, for testing purposes used Korg Polysix (I think thats what someone else used), and each playing a sustaining bass sound (01Thickbass)…
Just a single pattern, each one playing C4

Then it was time to play…
ENABLE THAT CPU CORE !
Here were my testing results…

CPU CORES ENABLED - CPU Usage %

1- 61.1%
2- 41-43%
3- 32.6-33.5%
4- 22.5-27.4%
5- 19.8-21.4%
6- 17.4-18.7%
7- 17.4-18.8%
8- 17.2-17.8%
9- 15.8-16.2%
10-17.3-17.8%
11-18.3-18.5%
12-18.9-19.1%
13-19.7-20%
14-20.4-20.7%
15-20.5-21.2%
16-19.2-19.3%

As you can see. the percentage would jump about a bit… I simply noted the lowest I could spot, and the highest. I dont have anything else running on the machine bar notepad.
Quite interesting results,. there seems to be a definite sweet spot at 9 cores. probably 2 vst’s per core ?
What was surprising was the increase in percentage as I went from 10 to 16.