Quote from: MA3A on February 07, 2020, 09:45:35 PM

- this is very reasonable, where did you get numbers from?

i have found locally 2670 v3, will install soon and see what they are capable of

Had a chance to test many different v3 xeons and compare randomx performance to specs, some observations:

-algo needs 256Kb L2 for every thread so hyperthreading is basically useless, disable it to save power or use cpu affinity to bind threads to 'real' cores.
-turbo bins, models with highest all core turbo are the best.
-tdp, on higher core count models after optimal tweaking you start hitting the tdp wall and throttling starts, negative vcore offset helps to a point where cpu crashes due to too low voltage.
-xeons run really cool, with a decent cooler heat is never a problem.
-exploiting 'xeon v3 turbo hack' can boost mining performance easily 20-30%.

What I forgot to try was some REALLY tight memory timings like with ryzens, v3 supports only DDR4-2133 and depending on how many memory sticks you have it runs on 1-4 way mode.

For example, looking at 2670 v3 I see it is a 12c/24t cpu with tdp of 120w, 2.3GHz base clock and turbo 3/3/3/3/3/3/3/4/5/6/8/8 meaning it will run on 2.6-3.1 GHz depending on how many threads you are using. 12 threads @2.6GHz will end up somewhere in 5k range.

Most likely you are limited also on your INTEL S2600CW2SR motherboard and the lack of tuning options and/ or possibility to use cheap ES/QS processors.

Do a search for 'List_of_Intel_Haswell-based_Xeon_microprocessors', really nice listing which clearly shows the most important specs for mining.