Multicore CPUs: Any risk to audio quality?

With the end of the Window XP security updates, among other factors, I needed to take some time to replace my ancient tower pc, possibly with one that runs either an Intel Ivy Bridge 4 or 8 core or the latest Haswell 4 core processor.

To minimize fan and/or electrical noise, the better choice appears to be the low power versions of the Ivy Bridge processor family
( )
E5-2630 v2 (6 core, 2.6GHz, LGA2011 socket, 80w), E5-2630L v2 (6 core, 2.4GHz, LGA2011 socket, 60w), E5-2428L v2 (8 core, 1.8GHz, LGA1356 socket, 60w)

-or the new Haswell processor family. )
E3-1285L v3 (4 core, 3.1GHz, LGA1150 socket, 65w)

( )
i7-4770S(4 core, 3.1GHz, LGA1150 socket, 65w), and i7-4770R(4 core, 3.2GHz, LGA1150 socket, 65w).

Needless to say, my chief priority will always be audio signal quality (i.e. editing of uncompressed wav files
of music CD tracks for playback via USB or a balanced AES card feeding a high performance external DAC). But I also would like to eventually use this computer for DVD as well as more demanding BluRay movie disc editing.

Though presently having no hands on experience and minimal knowledge of computer video editing, I do know that the most time consuming phase of the process is recompression of the edited video back into the BluRay movie disc format. Depending on the software and hardware resources, recompression could take anywhere from 45 minutes to well over 90 minutes.

So I thought that a new pc with one of the above six or eight core model processors and 16GB of RAM, together with the right software apps, might significantly reduce BD compression time-perhaps to as little as 30 minutes.

Again, however, my primary concern is audio quality. Therefore, compared to the ubiquitous dual core processors, could using four, six or eight core Ivy
Bridge or the new Haswell four core processors somehow pose any degree of risk to audio quality, in one or more ways?

And, of course, of particular interest would be any related incidents involving any of the specific (low power) processors listed above, and/or desktop boards
they were used in.

Before I make this computer purchase, any advice or referrals would be greatly appreciated. Thank you.
You really can't go wrong with any of the Intel processors nowadays. The difference between the core i5 and i7 is the i7 supports hyper threading, which with software designed for its use can make it appear to have more physical cores when in fact it doesn't. For most people, the i5 is the best bag for the buck, and that's what I would recommend for video editing. Put the money you save into more memory (16-32 GB) and a fast hd (maybe SSD) instead.

The processor choice should have no bearing on audio quality. That's more a function of the software ripping it and the audio file formats used.