Well what da ya know!? I treated myself to a new case today, the Phanteks Enthoo 719 full tower and I saw my idle and light load work temps drop between 10 and 15 degrees! Reduction of 5-6 degrees at full load. This would be understandable if I had moved from a small case, but my previous case was the full tower Phanteks Enthoo Luxe! I can't believe it! I wasn't expecting any performance uplift, I was just fed up with the pillar on the window panel of my old case blocking my view of my ram and the end of my red devil GPU. The 5800X sure is a sensitive chip! I've gained the following performance just be changing case and lowering the temps:
+300 points in multicore R23
+50 Mhz all core boost - now boosting to 4.7 all cores
almost hitting 700 points single and 7000 points multi in CPU-Z benchmark. Previously I was around 675 and 6700.
+300 points CPU score in Timespy
+500 points physics score in Firestrike Extreme.
latency score in AIDA 64 mem test reduced from 67 to 63 ns
As a measure of the sensitivity the chip has to temp and performance, I started off with the wrath prism air cooler and struggled to hit 14000 multi score in R23. I then replaced this with the Phanteks AIO 360 cooler which allowed me to score over 15000. Now the better environment in the new case is adding a further 300 points to those scores. Buzzing!