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This is giving me a headache. As I know, all RAM modules are a bit faster while reading instead of writing due it's nature. My only and last (I think valid) theory: a bad DDR4 timings (calculated by my motherboard btw).
There are some benchmarks (userbenchmark reveals some heavy performance waste at single-core also):
AIDA64 benchmark: https://i.stack.imgur.com/lw8Tx.png
UserBenchmark: https://www.userbenchmark.com/UserRun/22076207
And there is my timmings:
tCL: 13
tRCD: 18
tRP: 18
tRAS: 33
tRC:50
tWR: 10
tCWL: 13
tRRD_S: 2
tRRD_L: 4
tWTR_S: 2
tWRT_L: 8
tCCD_S: 2
tCCD_L: 4
tRFC: 596
tRTP: 9
tFAW: 8
tCMD: 1
tREFI: 12711
tREFIx9: 110
tXP: 8
tXPDLL: 29
tPRPDEN: 2
tRDPDEN: 17
tWRPDEN: 28
tCPDED: 4
tAONPD: 11
tCKE: 1
RFR Delay: 14
tXSDLL: 1024
tXS Offset: 5
tZQOper: 512
tMOD: 24
tRDRD_sg: 6
tRDRD_dg: 4
tRDRD_dr: 6
tRDRD_dd: 7
tRDWR_sg: 9
tRDWR_dg: 9
tRDWR_dr: 9
tRDWR_dd: 10
tWRWR_sg: 6
rWRWR_dg: 4
tWRWR_dr: 7
tWRWR_dd: 7
tWRRD_sg: 26
tWRRD_dg: 20
tWRRD_dr: 6
tWRRD_dd: 7
I'll really appreciate any help with this!
EDIT: I forgot to say. tCL, tRCD, tRP and tRAS are manually selected!
Notto
Posted 2019-12-02T02:41:09.083
Reputation: 1
1I'm unable to identify a question here... What is the problem you are trying to solve? – HumanJHawkins – 2019-12-02T03:15:50.327
RAM speeds aren't correct. Write speeds are better than read speeds. And there's a major performance loss while reading in single core (24GB/s), while I can write at 48.4GB/s. And in multicore the write speeds lows to 44GB/s, but read speeds now reach a reasonable values like 43.2GB/s. No sense speeds... Please check my userbenchmark result and compare with other: https://ram.userbenchmark.com/SpeedTest/735311/Crucial-BLS16G4D30AESCM16FE-2x16GB
– Notto – 2019-12-02T04:07:36.220I forgot to say. Copy speeds gets low values for some reason at single and multicore also. – Notto – 2019-12-02T04:14:42.293
First of all, welcome to Super User! We are always glad to help, but you apparently have two Super User accounts: this one and this one. Please take the time to utilize the following Help Center tutorial and ask the Super User staff to merge your accounts: I accidentally created two accounts; how do I merge them?
– Run5k – 2019-12-02T06:27:50.013