Threadripper 1950x very low integer and floating point math tests. Help?

[David (PassMark)]

We had a few similar reports over the last year. Here are the links.
https://www.passmark.com/forum/perfo...ger-math-score
https://www.passmark.com/forum/perfo...int-math-score
Especially this post.
https://www.passmark.com/forum/perfo...7566#post37566

So as a summary, this seemed to help in other cases:
- Turning on Intel Speed step in BIOS
- Uninstalling Gigabyte bloatware (e.g EasyTuningService)
- Full reinstall of Windows if above don't work.

In your case you won't have Intel speed step or Gigabyte EasyTuningService software, and have already reinstalled windows. (I assume you run the benchmark directly after the new install of Windows and didn't load any 3rd party "tuning" first).

Some type of throttling seems likely.

Some other things to check.
- Windows power plan
- Any power saving settings in BIOS
- If there is any updated drivers available
- Some people with Ryzen CPUs are blaming the HPET for performance issues (High Precision Event Timer), we don't know if this is true however. (Important Update 1/Mar/2021. ASUS confirmed there is a problem with their ASUS AI Suite 3 software and the HPET timer causing floating point performance issues).

[Carey.briggs]

I've been struggling with this for a couple days now and am at wits end. My Threadripper is posting depressingly low numbers for both the integer math test and the floating point math test (which are critical uses for me).
Full benchmark:
https://www.passmark.com/baselines/V...id=91345242354

Equipment:
Asus ROG Zenith Extreme running BIOS 0701 (latest)
Threadripper 1950x
GSkill F4-3200C14Q-32GTZR
Custom watercooled loop using EK-Supremacy EVO Threadripper Edition - Full Nickel waterblock
850 Watt EVGA G3 power supply
Cosmos C700P case (large, 3 fans in on waterblock in front, 3 fans exhaust @ 2 top, 1 back)
Samsung 960 pro M.2 behind NVMe heatsink on mobo

Fresh install of win10 on a brand new blank m.2 NVMe (reinstalled two more times in desperation), so I'm certain there isn't an older chipset/driver for a different cpu causing conflict.

My test results vs about average (average taken as the approx mean of the most populous gaussian-ish curve of values - eyeballing the averages here)
CPU benchmark numbers (mine/cluster median)
Integer math : 28000/85000 (distressingly below average)*******
Prime Numbers : 75/73 (slightly above average?)
Compression : 53000/52000 (slightly better than average)
Physics : 1450/1500 (average)
CPU single thread 1800/2050 (significantly below average)
Floating point math 4800/31000 (distressingly below average)*******
Extended instructions 1470/1500 (average)
Encryption 8300/8300 (average)
Sorting 3100/3100 (average)

Interestingly, in the reported stats for people with the same chip, there is a small cluster of users who seem to be experiencing the same issue both for integer math and floating point math.

Tried running the benchmarks with default bios settings, DOCP 3200Mhz only, CPU 4Ghz overclock (asus setting) only, and both overclocked. Same low math result for each. During the benchmarks, my cpu usage rails to 100% (except during the single thread test obviously). I changed the test duration to long and checked the temperature and power using HWinfo64. During the Integer math, my max Tdie was 48.8C, Tctl was 75.8C, and max CPU package power was 130W (should it have peaked to 180W?). During the floating point math, max temps were Tdie 40.5C, Tctl 67.5C and 134W max CPU package power. When I run something with a normal value like the encryption test, I get Tdie 50.8, Tctl 77.8 and 179W (full usage?).

Performance per CPU core for medium duration integer math test (default 32):
1 - 2996
2 - 5902
3 - 8900
4 - 11762
5 - 14598
6 - 17243
7 - 19704
8 - 21919
9 - 24058
10 - 25498
11 - 25473
12 - 25684
13 - 25991
14 - 26117
I don't see the point in continuing further

Performance per CPU core for medium duration floating point math test (default 32):
1 - 1670
2 - 3080
3 - 4090
4 - 4158
5 - 4301
6 - 4208
7 - 4357
8 - 4372
9 - 4444
10 - 4346
11 - 4405
12 - 4348
13 - 4362
14 - 4482
I don't see the point in continuing further

Testing against something that appears to have a "normal" benchmark:
Performance per CPU core for medium duration encryption test (default 32):
1 - 358
2 - 726
3 - 1101
4 - 1453
5 - 1799
6 - 2142
7 - 2495
8 - 2876
9 - 3213
10 - 3572
11 - 3904
12 - 4269
13 - 4627
14 - 4893
15 - 5339
16 - 5648
17 - 5816
18 - 6014
19 - 6158
20 - 6330
21 - 6505
22 - 6669
23 - 6846
24 - 7018
I think we get the trend- it seems to be levelling off a bit as we creep up to a "good" value, still making reasonable gains at 24 threads whereas the "bad" tests level off around 9 threads (integer) and 3 threads (flop)

These results are devastating for me since I was intending to use this computer for high-load FLOP and integer math (multithreaded Matlab computation), but my Nephew's Ryzen5 1600x basically pulls the same performance in matlab. So I got a Ryzen 5 at Threadripper 1950x prices? Am I overlooking some sort of system setting? Is this processor an RMA? Is there a chance it could be the motherboard? I would be VERY grateful for anyone who could lend insight or at least put me out of my 48 hour misery of an ordeal.