Timeline for Understanding count of logical processing units in Qualcomm SOC
Current License: CC BY-SA 4.0
7 events
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| Aug 3, 2023 at 13:11 | comment | added | Mokubai♦ | As another data point Qualcomms own documentation at docs.qualcomm.com/bundle/publicresource/topics/80-PV086-5P/… does spend a lot of time saying that there are only 4 "gold" and 4 "silver" cores but the specific features page breaks the 4 gold cores down as 1 "prime gold" and 3 "gold" cores. I do not see any model specific variant information amongst that documentation. | |
| Aug 3, 2023 at 12:59 | comment | added | Mokubai♦ | @Zac67 a datasheet for a device containing the specific QRB5165 shows the three core groups as well, just with slower clock on the prime core: cdn.lantronix.com/wp-content/uploads/pdf/… so I suspect any 585 based SoM to be the same. | |
| Aug 3, 2023 at 12:55 | comment | added | Zac67 | @Mokubai That would a very reasonable explanation - I don't see the 'premium' core in the linked docs though. That might be true only for the Prime model. | |
| Aug 3, 2023 at 12:44 | comment | added | Mokubai♦ |
The Kryo 585 actually contains 3 core groups. One premium "big" core, 3 standard "big" cores and 4 "little" cores. From en.wikipedia.org/wiki/Kryo#Kryo_500_Series 1x Kryo 585 Prime @ up to 3.2 GHz + 3x Kryo 585 Gold @ 2.42 GHz + 4x Kryo 585 Silver @ 1.80 GHz so the sockets appear to be the three processor complexes, but I don't know why it says 2 cores per socket. Possibly because with the 1,3,4 complex there is no useful same number across the core complexes. At best "2" is the rounded down average number of cores per socket, 8 cores across 3 sockets being 2.666666 cores per socket.
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| Aug 3, 2023 at 6:12 | history | edited | Zac67 | CC BY-SA 4.0 |
added 33 characters in body
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| Aug 3, 2023 at 5:43 | comment | added | RajS | So there is no logical vs physical processor distinction in this? All it has is just 8 physical cores, 4 big and 4 little, right? | |
| Aug 3, 2023 at 5:33 | history | answered | Zac67 | CC BY-SA 4.0 |