thread: Multiple Cores
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Old 12th April 2007
Gear Nut

Originally Posted by True North View Post
How about I/O's use efficiencies ?

From what you are saying, as far as plugin's are concerned, a dual quad is almost twice as capable as a single quad. To the lay person that would seem to make sense. So in other words and hypothetically speaking, if you maxed out your single quad system on 100 Rea-verb plugins - a dual quad system might max at something like 180 Rea-Verb plugins - Correct ?

What happens to these efficiencies when the latencies fall below 128 samples ?

When I first got this 8 core machine, I did some tests comparing it to my previous dual core athlon64 at a similar clock speed.

I did most of the tests at 512 sample block size at 48khz.

I loaded tracks each with a mono WAV file, and a bunch of REAPER's built in FX (compressor, gate, FFT EQ, Convolution Reverb with a long sample, etc).

The dual core box could run around 13 of these. The 8 core box could run 50.

At lower blocksizes you can't quite push it as hard--as you start needing one of the processors to spend more time servicing the audio hardware.. But the overall performance is still quite pleasing