JanR86
Stammgast
- 725
Zu dem Thema "UFS 2.0 vs 2.1" gibt es inzwischen bei XDA einen Thread, wo das ganze ganz gut zusammengefasst ist.
Demnach scheinen im Mate 9 die folgenden 64GB-Chips verbaut zu sein (die anderen Speichergrößen 32GB und 128GB unterscheiden sich jeweils nur geringfügig in der Modellnummer, s. verlinkter Beitrag) - Hervorhebungen von mir hinzugefügt:
In Kombination mit den Werten, die die verbauten, oben angegebenen Chips erreichen, können "wir" (d.h. außerhalb von China) vermutlich sogar noch ganz froh sein, dass wir nicht den "manchmal" im Mate 9 verwendeten SK-Hynix-UFS-2.1-Chip verbaut haben (auch wenn die UFS-2.1-Nachfolge-Chips von Samsung/Toshiba natürlich wiederum schneller wären, als die verbauten UFS-2.0-Chips, was aber eher darin begründet ist, dass sie neuer sind, nicht in der Tatsache, dass es UFS-2.1-Chips sind).
Demnach scheinen im Mate 9 die folgenden 64GB-Chips verbaut zu sein (die anderen Speichergrößen 32GB und 128GB unterscheiden sich jeweils nur geringfügig in der Modellnummer, s. verlinkter Beitrag) - Hervorhebungen von mir hinzugefügt:
- Samsung KLUCG4J1CB-B0B1; UFS2.0; 64GB; ~460MB/s (seems only in Mainland China)
- Toshiba THGBF7G9L4LBATR: UFS2.0; 64GB; ~610MB/s
- Samsung KLUCG4J1EB-B0B1; UFS2.0; 64GB; ~850MB/s
- SK-Hynix H28U74301AMR; UFS2.1; 64GB; ~550MB/s (seems only in Mainland China)
Hi there, UFS2.0 and UFS2.1 are the standards by JEDEC.
UFS2.0 is generated in Sept. 2013, and UFS2.1 in Mar. 2016, as a complementary of UFS2.0.
a) Related documents:
UFS2.0：JESD220B (Sept. 2013)
UFS2.1：JESD220C (Mar. 2016)
b) About speed:
No matter the flash is UFS2.0 or UFS2.1, they must support HS-G2 interface physical layer agreement (1-Lane up to 2.9Gbps and 2-lane up to 5.8Gbps). And HS-G3 is optional (1-Lane up to 5.8Gbps and 2-lane up to 11.6Gbps).
Speed is not the discrimination of UFS2.0 and UFS2.1!
UFS2.1 flash memories are regularly faster only because they are newest products and with better integrated controllers and flash cell technologies.
c) About the differentiation between UFS2.0 and UFS2.1:
JESD220C Universal Flash Storage version 2.1 offers key improvements over earlier versions and will provide data security through the use of inline cryptography between the SoC and UFS Storage device.
UFS 2.1 defines the following updates over the prior version of the standard:
i) Inclusion of a Device Health Descriptor: the descriptor provides detailed information on the life of a device, thus allowing for better preventative maintenance, which is advantageous to most areas of the market and especially important in the automotive market.
ii) Addition of Secure Write Protection: this allows for the use of fine-grained write protection as required by modern high-level operating systems (OS) and applications.
iii) Field Firmware Update: enables the device vendor to improve performance and implement bug fixes, as well as facilitating the addition of new features in products that have already shipped to end customers.
iv) Command priority: improves system performance, allowing the software to assign higher priority to more urgent tasks.
So the auxiliary functions are the differences between UFS2.0 and UFS2.1.
UFS2.0 is generated in Sept. 2013, and UFS2.1 in Mar. 2016, as a complementary of UFS2.0.
a) Related documents:
UFS2.0：JESD220B (Sept. 2013)
UFS2.1：JESD220C (Mar. 2016)
b) About speed:
No matter the flash is UFS2.0 or UFS2.1, they must support HS-G2 interface physical layer agreement (1-Lane up to 2.9Gbps and 2-lane up to 5.8Gbps). And HS-G3 is optional (1-Lane up to 5.8Gbps and 2-lane up to 11.6Gbps).
Speed is not the discrimination of UFS2.0 and UFS2.1!
UFS2.1 flash memories are regularly faster only because they are newest products and with better integrated controllers and flash cell technologies.
c) About the differentiation between UFS2.0 and UFS2.1:
JESD220C Universal Flash Storage version 2.1 offers key improvements over earlier versions and will provide data security through the use of inline cryptography between the SoC and UFS Storage device.
UFS 2.1 defines the following updates over the prior version of the standard:
i) Inclusion of a Device Health Descriptor: the descriptor provides detailed information on the life of a device, thus allowing for better preventative maintenance, which is advantageous to most areas of the market and especially important in the automotive market.
ii) Addition of Secure Write Protection: this allows for the use of fine-grained write protection as required by modern high-level operating systems (OS) and applications.
iii) Field Firmware Update: enables the device vendor to improve performance and implement bug fixes, as well as facilitating the addition of new features in products that have already shipped to end customers.
iv) Command priority: improves system performance, allowing the software to assign higher priority to more urgent tasks.
So the auxiliary functions are the differences between UFS2.0 and UFS2.1.
In Kombination mit den Werten, die die verbauten, oben angegebenen Chips erreichen, können "wir" (d.h. außerhalb von China) vermutlich sogar noch ganz froh sein, dass wir nicht den "manchmal" im Mate 9 verwendeten SK-Hynix-UFS-2.1-Chip verbaut haben (auch wenn die UFS-2.1-Nachfolge-Chips von Samsung/Toshiba natürlich wiederum schneller wären, als die verbauten UFS-2.0-Chips, was aber eher darin begründet ist, dass sie neuer sind, nicht in der Tatsache, dass es UFS-2.1-Chips sind).
