Steve Salier
Dabbler
- Joined
- Dec 10, 2012
- Messages
- 18
FYI ... for anyone looking at Xeon-D builds - these revised 1520/1541 steppings have also supposedly addressed multiple errata on the current versions (including lack of TSX and SR-IOV) - this has yet to be definitively confirmed however.
SM has NOT changed any of the 1520 SKUs to indicate which CPU you will receive so i guess we have to wait for old inventory to move.
From: http://www.cpu-world.com/news_2015/2015080401_Xeon_D-1521_and_D-1541_SoCs_to_launch_in_Q4_2015.html
Intel currently offers two server-class products, based on Broadwell microarchitecture: Xeon E3-1200 v4 series, aimed at single-socket workstations, and Xeon D family for microservers. The latter processors are implemented as systems on a chip, and can pack up to 8 "Broadwell" CPU cores on a die, along with up to 12 MB of L3 cache and a handful of I/O interfaces. First Xeon D SoCs, D-1520 and D-1540, have been launched in the second quarter of 2015. According to recently released Product Change Notification (PCN), they will be replaced with Xeon D-1521 and D-1541 models. Both new chips will feature higher clock rates and add support for DDR3 memory.
Xeon D-1541 will have base and turbo frequencies increased by 100 MHz to 2.1 GHz and 2.7 GHz respectively. Its memory controller will support DDR3-1600 and DDR4-2400 memory. The PCN states that the SoC will also have "KR functionality added", however it does not provide any specifics on the KR feature. We assume that remaining characteristics have not changed. As such, the D-1541 should have 8 CPU cores, 12 MB of L3 cache and 45 Watt TDP.
Xeon D-1521 will operate at 2.4 GHz and have the maximum Turbo Boost frequency of 2.7 GHz. It will also support DDR3-1600 memory and the KR feature. The rest of the specs should be identical to the D-1520: 4 CPU cores, 6 MB of L3 cache and DDR4-2133 memory support. It will fit into 45 Watt thermal envelope.
Both chips will be based on newer stepping of Broadwell-DE core, and will integrate PCI Express 2.0 and 3.0, SATA 3, USB 2.0/3.0 and Ethernet controllers. The SoCs will be produced in a BGA package. First production versions of D-1521 and D-1541 processors will be available on November 2, 2015.
SM has NOT changed any of the 1520 SKUs to indicate which CPU you will receive so i guess we have to wait for old inventory to move.
From: http://www.cpu-world.com/news_2015/2015080401_Xeon_D-1521_and_D-1541_SoCs_to_launch_in_Q4_2015.html
Intel currently offers two server-class products, based on Broadwell microarchitecture: Xeon E3-1200 v4 series, aimed at single-socket workstations, and Xeon D family for microservers. The latter processors are implemented as systems on a chip, and can pack up to 8 "Broadwell" CPU cores on a die, along with up to 12 MB of L3 cache and a handful of I/O interfaces. First Xeon D SoCs, D-1520 and D-1540, have been launched in the second quarter of 2015. According to recently released Product Change Notification (PCN), they will be replaced with Xeon D-1521 and D-1541 models. Both new chips will feature higher clock rates and add support for DDR3 memory.
Xeon D-1541 will have base and turbo frequencies increased by 100 MHz to 2.1 GHz and 2.7 GHz respectively. Its memory controller will support DDR3-1600 and DDR4-2400 memory. The PCN states that the SoC will also have "KR functionality added", however it does not provide any specifics on the KR feature. We assume that remaining characteristics have not changed. As such, the D-1541 should have 8 CPU cores, 12 MB of L3 cache and 45 Watt TDP.
Xeon D-1521 will operate at 2.4 GHz and have the maximum Turbo Boost frequency of 2.7 GHz. It will also support DDR3-1600 memory and the KR feature. The rest of the specs should be identical to the D-1520: 4 CPU cores, 6 MB of L3 cache and DDR4-2133 memory support. It will fit into 45 Watt thermal envelope.
Both chips will be based on newer stepping of Broadwell-DE core, and will integrate PCI Express 2.0 and 3.0, SATA 3, USB 2.0/3.0 and Ethernet controllers. The SoCs will be produced in a BGA package. First production versions of D-1521 and D-1541 processors will be available on November 2, 2015.
