Xeon D-1587/1581/1577/1571 16 Core CPU full specs found at Intel ARK, 12 Core 1567 looks the most interesting
It began with my article two days ago:
where I had this little pre-formed search link for you,
but the results didn't show any of the new 12 and 16 core Xeon D-1500 CPUs quite yet.
Well, that's apparently all changed today, with all the 16 core models now detailed. What do you notice?

- What's this Xeon D-1581? Nobody has mentioned this model before, see Google search for xeon d-1581, pictured at right.
- Why are both 12 core models, the Xeon D-1557 and Xeon D-1558, missing?
- Where's pricing?
The Xeon D-1581 is detailed below, and surprisingly, it's got a 0.1 GHz faster base clock than the Xeon-D1587 that STH just benchmarked. That appears to be the only difference. I suspect questions 2 and 3 will be cleared up before long.
What's the best way to quickly see today's current 8 core models compared to all the upcoming 16 core models? Here you go!
Compare Xeon D-1540 / Xeon D-1541 / Xeon D-1548 / Xeon D-1567 / Xeon D-1587 / Xeon D-1581

All Intel Xeon D-1500 Processor chips on ARK
Current, as of Feb 19 2016, with 1567 added Mar 06 2016
-
Intel® Xeon® Processor D-1587 (24M Cache, 1.70 GHz)
Family: Intel® Xeon® Processor D Family
Release: Q1'16
Launch Date: Q1'16
# of Cores: 16
TDP: 65 W
Processor Graphics ‡: None -
Intel® Xeon® Processor D-1581 (24M Cache, 1.80 GHz)
Family: Intel® Xeon® Processor D Family
Release: Q1'16
Launch Date: Q1'16
# of Cores: 16
TDP: 65 W
Processor Graphics ‡: None -
Intel® Xeon® Processor D-1577 (24M Cache, 1.30 GHz)
Family: Intel® Xeon® Processor D Family
Release: Q1'16
Launch Date: Q1'16
# of Cores: 16
TDP: 45 W
Processor Graphics ‡: None -
Intel® Xeon® Processor D-1571 (24M Cache, 1.30 GHz)
Family: Intel® Xeon® Processor D Family
Release: Q1'16
Launch Date: Q1'16
# of Cores: 16
TDP: 45 W
Processor Graphics ‡: None -
Intel® Xeon® Processor D-1567 (18M Cache, 2.10 GHz)
Family: Intel® Xeon® Processor D Family
Release: Q1'16
Launch Date: Q1'16
# of Cores: 12
TDP: 65 W
Processor Graphics ‡: None -
Intel® Xeon® Processor D-1548 (12M Cache, 2.00 GHz)
Family: Intel® Xeon® Processor D Family
Release: Q4'15
Launch Date: Q4'15
# of Cores: 8
TDP: 45 W
Processor Graphics ‡: None -
Intel® Xeon® Processor D-1541 (12M Cache, 2.10 GHz)
Family: Intel® Xeon® Processor D Family
Release: Q4'15
Launch Date: Q4'15
# of Cores: 8
TDP: 45 W
Processor Graphics ‡: None - Intel® Xeon® Processor D-1540 (12M Cache, 2.00 GHz)
Family: Intel® Xeon® Processor D Family
Release: Q1'15
Launch Date: Q1'15
# of Cores: 8
TDP: 45 W
Processor Graphics ‡: None
Mar 06 2016

The suprise model of most interest to me is the 12 core Xeon D-1567 that has only recently surfaced, see also the wonderful table of processors at:
Why is it a suprise, and why is it of interest? Well, turns out the GHz don't drop from the Xeon D-1541, that's why. It's 4 more cores, at no decrease in speed per core. Now we're talking more VMs, without the penalty.
To re-cap:
- Xeon D-1541 08 cores, 2.1 GHz / 2.7 GHz Turbo, 45 Watts
- Xeon D-1567 12 cores, 2.1 GHz / 2.7 GHz Turbo, 65 Watts
Given the ARK listings weren't complete when I wrote this article, time to update the listing above. Done!
Unfortunately, the Xeon D-1567 is apparently not even a part of Supermicro's recently Xeon D-1500 line-up:
Here's what they did announce:
New 2016 X10SDV Series Motherboards and Systems supporting Intel® Xeon® Processor D-1500 Family
X10SDV-16C(+)-TLN4F – Mini-ITX, Intel® Xeon® processor D-1587 SoC 16-core, 65W (+ w/ Fan), Dual 10GbE/1GbE, M.2, up to 128GB DDR4 RDIMM, Optimized Chassis SC721, SC505/504
X10SDV-12C-TLN4F – Mini-ITX, Intel® Xeon® processor D-1557 SoC 12-core, 45W, Dual 10GbE/1GbE, M.2, up to 128GB DDR4 RDIMM, Optimized Chassis SC505/504
X10SDV-6C(+)-TLN4F – Mini-ITX, Intel® Xeon® processor D-1528 SoC 6-core, 35W (+ w/ Fan), Dual 10GbE/1GbE, M.2, up to 128GB DDR4 RDIMM, Optimized Chassis SC721, SC505/504
X10SDV-4C-TLN4F – Mini-ITX, Intel® Xeon® processor D-1518 SoC 4-core, 35W, Dual 10GbE/1GbE, M.2, up to 128GB DDR4 RDIMM, Optimized Chassis, SC505/504
X10SDV-7TP8F (SYS-1018D-FRN8T) – Flex ATX, Intel® Xeon® processor D-1587 SoC 16-core, 65W, Dual 10GbE SFP+, 6x 1GbE LAN Ports, up to 22x SATA devices, Optimized Chassis: SC515R
X10SDV-TP8F (SYS-5018D-FN8T) – Flex ATX, Intel® Xeon® processor D-1518 SoC 4-core, 35W, Dual 10GbE SFP+, 6x 1GbE LAN Ports, up to 22x SATA devices, Optimized Chassis: SC505
X10SDV-7TP4F (SSG-5018D8-AR12L) – Flex ATX, Intel® Xeon® processor D-1537 SoC 8-core, 35W, Dual 10GbE SFP+, 2x 1GbE LAN Ports, Optimized Chassis: SC801L
X10SDV-4C-7TP4F (SSG-5018D4-AR12L) – Flex ATX, Intel® Xeon® processor D-1518 SoC 4-core, 35W, Dual 10GbE SFP+, 2x 1GbE LAN Ports, up to 22x SATA devices, Optimized Chassis: SC801L
X10SDV-2C-7TP4F (SSG-5018D2-AR12L) – Flex ATX, Intel® Pentium® processor D-1508 SoC 2-core, 25W, Dual 10GbE SFP+, 2x 1GbE LAN Ports, up to 22x SATA devices, Optimized Chassis: SC801L
X10SDV-2C-TP8F – Flex ATX, Intel® Pentium® processor D-1508 SoC 2-core, 25W, Dual 10GbE SFP+, 6x 1GbE LAN Ports
X10SDV-4C+-TP4F – Flex ATX, Intel® Xeon® processor D-1518 SoC 4-core, 35W (w/ Fan), Dual 10GbE SFP+, 2x 1GbE LAN Ports
X10SDV-2C-TP4F (SYS-5018D-LN4T) – Flex ATX, Intel Pentium® processor D-1508 SoC 2-core, 25W, Dual 10GbE SFP+, 2x 1GbE LAN Ports, Optimized Chassis: SC504
See also at TinkerTry
See also
- Intel’s 16 Core Xeon D-1571 Processor Launched For Microservers – Based on Broadwell Architecture, Priced at $1222 US
Feb 13 2016 by Hassan Mujtaba at WCCF Tech






These systems still work great for many even 9+ years later, mine included, even with (unsupported) vSphere 8 and Windows 11 Version 21H2. But unless you added the optional TPM module, it may be the end of the line as far as repurposing them for running the latest Windows 11 Version 24H2 and beyond.