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Kutoru
Journeyman III

AMD 7960X inaccurate lscpu output?

I'm clocking upwards of 8 GHz without any modifications?
```
Vendor ID: AuthenticAMD
Model name: AMD Ryzen Threadripper 7960X 24-Cores
CPU family: 25
Model: 24
Thread(s) per core: 2
Core(s) per socket: 24
Socket(s): 1
Stepping: 1
Frequency boost: enabled
CPU(s) scaling MHz: 40%
CPU max MHz: 8229.0000
CPU min MHz: 545.0000
BogoMIPS: 8399.71
```

Power consumption doesn't support the 8GHz but the CPU frequency does
```
0 2185.2939
1 2185.2939
2 4813.1401
3 2185.0610
4 2185.6960
5 4335.7578
6 2184.0959
7 3583.2830
8 1968.3030
9 1971.3540
10 2184.0959
11 2184.0959
12 2184.4861
13 4539.8882
14 2184.0959
15 2184.0959
16 1969.5850
17 1969.2040
18 1966.0129
19 2184.3879
20 1970.3160
21 5019.7769
22 2185.2329
23 1963.3190
24 8229.0000
25 1965.8070
26 1966.0179
27 1968.8320
28 5156.8779
29 6486.5669
30 2184.0959
31 2184.0959
32 1969.8320
33 1971.3390
34 1969.6930
35 4436.4448
36 2184.4861
37 2184.6079
38 2184.0959
39 2184.0959
40 1971.1060
41 2253.7500
42 1970.2410
43 1968.2419
44 1956.5930
45 1944.9611
46 4336.3232
47 1966.5990
```

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3 Replies
Kutoru
Journeyman III

2.2 GHz is the maximum clock speed that I set via /sys/bus/cpu/devices/cpu*/cpufreq/scaling_max_freq to see if it made a difference so I'm not exactly sure why that isn't being respected either.

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misterj
Big Boss

Kutoru, I guess if I knew something about Linux I might know what all the numbers mean. Looks like a Linux code problem. If you can run Windows please post a screenshot of Ryzen Master (RM). Thanks, John.

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The first block is CPU specifications, really the only thing I want to pull out from that is that it says it can do 8 GHz which is a lie unless its overclocking by default.

 

```

CPU max MHz: 8229.0000
CPU min MHz: 545.0000
BogoMIPS: 8399.71

```

 

The second block is a CPU thread / CPU frequency table taken using `lscpu -e`, you can see several reaching above 5 GHz (regardless of the fact that I've capped it at 2.2GHz, it is still above the stock 5.3 GHz cap, for ex.)

 

```

29 6486.5669

```

 

This isn't a Linux problem, another machine with 7965WX has the correct output.

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