We have not tested the L12S so we don't know if it potentially would be a better fit with the 4mm increase in width of the case. Actually no one can know for sure before it has been tested in reality. We did a new tests an published it on the KS campaign as you say. This time using more aggressive fan settings that allow the fans to spool up more earlier and potentially causing more noise.
We understand these results are hard to believe. When we first saw them on the first prototype we had to make reruns only to believe it ourselves and then it hit us - this will be hard to communicate without people questioning the results. So we have urged the reviewers to run these tests and share their results because this is one of the biggest USPs of the Ghost, but so far they haven't really done this - still hoping Dave will do it! If you have any ideas on how we could communicate this more convincingly and impartially without putting our hopes in reviewers' hands we would love to do it. Maybe someone here lives close by and could swing by to confirm!? We could do a live 3Dmark run during the live stream today, probably at the end of it not to waste time.
The point is that The Ghost performs well with any of these coolers. When you experience this yourself we believe you'll be happy the case was not made any bigger. There is no need for down volting or delidding with any of these coolers! The key to this performance is the "Back-to-back architecture, only the fact that it gives superior vertical heat-pipe orientation is important.
The L12S compared to the L12: you call it a 4 year old design, but what is really different and why is the S better other than the fact that it is available? I'm not sure I'd prefer the S even with the 4mm case width increase only because it is newer, i'd base my decision on facts available and then test the candidates myself to understand the implications these facts have in my specific application:
- The S is lifted give it sufficient ram clearance when using a 120 mm slim fan - but the clearance is still lower than that of the L12, no?
- You get one fan only with the S
- It is taller
- Same recommended TDP?
- The S has a copper base, potentially an improvement but I'm not sure... heat traveling between different mediums is never optimal, if it would have been all copper I'd understand
In our view the L12 is the superior alternative, it has given us a solid baseline, a starting-point from where our expectations should keep rising. The question is now: Where do we go from here and how can it be improved further? Yesterday we reached out to Noctua (located not far from Stockholm) to initiate a dialogue with them to see if we can answer this question together. We don't know where that will lead at this point but we see several outcomes that would truly be better than increasing the size of the Ghost S1.
Link to test