2018 Mini slower after RAM upgrade? More thermal throttling than usual?

mono-kai

macrumors newbie
Original poster
Mar 12, 2020
4
0
Hi there, I got my Mac mini in February and am very happy with it. Got the i7 and upgraded from 16GB to 32GB RAM.
I ran Cinebench R20 and got 2700-3100 and on an Logic X stresstest (Newlogicbenchmarktest) 81 Tracks. After upgrading to 32GB and about 2 weeks later I ran Cinebench (only around 2250)/Geekbench (around 5000)/Logic Benchmarks (61 Tracks) and the results were 20% less. In Cinebench cores run at 2,7-2,9 GHz, so slower than on other tests I've seen. Tested on different days and also at various temperatures.
Could the new Ram be the problem? It was installed by an Apple certified dealer, so I figure they know how/which to install.

I ran diagnostic, did PRAM/SRC reset and also tried the tests with a new user account to exclude threads from the main user. Didn't change anything at all.

Anyone experienced similar problems?
Thanks in advance
 

mono-kai

macrumors newbie
Original poster
Mar 12, 2020
4
0
It's two Samsung M471A2K43CB1-CTD 16 GB DDR4 2667MHz modules, both seemingly OK.
 

mono-kai

macrumors newbie
Original poster
Mar 12, 2020
4
0
The old Ram was two Sk Hynix hma81gs6cjr8n-vk 8 GB 2666mhz, but if you google the Samsung ram it also says 2666 MHz. Could this be a problem? Why does it display 2667mhz in my settings?
 

getrealbro

macrumors 6502
Sep 25, 2015
402
146
FWIW I downloaded Cinebench R20 and ran the test on my 2018 i7 Mini w/ 32GB of Crucial 32GB DDR4 2666 MHz SODIMM Memory Module Kit (2 x 16GB). It ranked 6th scoring 2740 pts.

I have included a few screen dumps of Intel Power Gadget and Activity Monitor’s CPU History taken during the Cinebench test. Note: the time scales of the Intel Power Gadget and CPU History graphs are close but not the same.

GetRealBro

Cinibench test.png Begin.png Middle.png End.png I
 
Last edited:

D.T.

macrumors G3
Sep 15, 2011
9,851
8,293
Vilano Beach, FL
For reference: Cinebench 2695 and Geekbench 5401 for my '18 32GB with OEM RAM.

If it's significant, that's running while in full production/operational mode, i.e., a WIn10 VM running MS-SQL, VS, IIS, and MacOS running (the VM itself) and Mail, Postman, Sketch, Notes, iTunes, Chrome (20-25 tabs), Messages, several services.
 

mono-kai

macrumors newbie
Original poster
Mar 12, 2020
4
0
Thank you guys for checking! I guess there is something wrong with my Mini. Will try a clean install and see if this helps. Then swap the Ram
 

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