SPECpower_ssj2008

Dell Inc. PowerEdge XR8720t (Intel Xeon 6766P-B)			SPECpower_ssj2008 = 20,130 overall ssj_ops/watt
Test Sponsor:	Dell Inc.	SPEC License #:	6573	Test Method:	Single Node
Tested By:	Dell Inc.	Test Location:	Round Rock, TX, USA	Test Date:	Apr 3, 2026
Hardware Availability:	Mar-2026	Software Availability:	Mar-2026	Publication:	Apr 22, 2026
System Source:	Single Supplier	System Designation:	Server	Power Provisioning:	Line-powered

Hardware
Hardware Vendor:	Dell Inc.
Model:	PowerEdge XR8720t (Intel Xeon 6766P-B)
Form Factor:	2U
CPU Name:	Intel Xeon 6766P-B
CPU Characteristics:	64 core, 2300 MHz, 256 MB L3 Cache, Max frequency 3500 MHz
CPU Frequency (MHz):	2300
CPU(s) Enabled:	64 cores, 1 chip, 64 cores/chip
Hardware Threads:	128 (2 / core)
CPU(s) Orderable:	1 chip
Primary Cache:	64 KB I + 48 KB D on chip per core
Secondary Cache:	2 MB I+D on chip per core
Tertiary Cache:	256 MB I+D on chip per chip
Other Cache:	None
Memory Amount (GB):	256
# and size of DIMM:	8 x 32 GB
Memory Details:	32 GB 2Rx8 PC5-6400B-R, slots A1 A2 A3 A4 A5 A6 A7 A8 populated.
Power Supply Quantity and Rating (W):	1 x 1800
Power Supply Details:	1800W Titanium Efficiency (SKU: 450-BCXB)
Disk Drive:	1 x 960 GB NVMe M.2 SSD
Disk Controller:	Integrated PCIe Controller
# and type of Network Interface Cards (NICs) Installed:	1 x Intel Ethernet Connection E825-C for SFP (rev 04)
NICs Enabled in Firmware / OS / Connected:	8/8/2
Network Speed (Mbit):	10000
Keyboard:	None
Mouse:	None
Monitor:	None
Optical Drives:	No
Other Hardware:	None

Software
Power Management:	Balanced power plan in OS (see SUT notes)
Operating System (OS):	Red Hat Enterprise Linux 10.0 (Coughlan)
OS Version:	6.12.0-55.9.1.el10_0.x86_64
Filesystem:	xfs
JVM Vendor:	Oracle
JVM Version:	Java HotSpot(TM) 64-Bit Server VM(build 17.0.11+7-LTS-207, mixed mode)
JVM Command-line Options:	-server -Xms1024m -Xmx1024m -Xmn800m -XX:+UseParallelGC -XX:ParallelGCThreads=2 -XX:+UseLargePages -XX:LargePageSizeInBytes=2m -XX:+UseBiasedLocking -XX:InlineSmallCode=1500 -XX:UseAVX=1 -XX:AutoBoxCacheMax=20000 -XX:+OptimizeFill -XX:+AggressiveHeap
JVM Affinity:	for each physicalCore { numactl -C physicalCoreId, physicalCoreId + 64}
JVM Instances:	64
JVM Initial Heap (MB):	1024
JVM Maximum Heap (MB):	1024
JVM Address Bits:	64
Boot Firmware Version:	1.1.3
Management Firmware Version:	1.30.10.50
Workload Version:	SSJ 1.2.10
Director Location:	Controller
Other Software:	None

Enabled (see SUT notes)

Each JVM instance was bound to 2 logical processors
SPECpower_ssj.props input.load_level.number_warehouses set to 128
The system ROM for this result contains microcode version 0x01000303 for Intel Xeon 6766P-B

Software
Operating System (OS):	Microsoft Windows Server 2022 Standard
JVM Vendor:	Oracle Corporation
JVM Version:	Java Development Kit 15.0.2
CCS Version:	1.2.6

Power Analyzer pwr1
Hardware Vendor:	Yokogawa Meters and Instruments Corporation
Model:	WT310
Serial Number:	T11733387
Connectivity:	RS-232
Input Connection:	Default
Metrology Institute:	NIST
Accredited by:	TesCom
Calibration Label:	T126625
Date of Calibration:	13-Aug-2025
PTDaemon Host System:	same as CCS
PTDaemon Host OS:	same as CCS
PTDaemon Version:	1.11.3-a7835373-20251015
Setup Description:	Connected to power supply

Temperature Sensor temp1
Hardware Vendor:	Digi International Inc.
Model:	Watchport/H
Driver Version:	5.10.26.0
Connectivity:	USB
PTDaemon Host System:	same as CCS
PTDaemon Host OS:	same as CCS
Setup Description:	25 mm in front of SUT main airflow intake

None

Target Load	Average Active Power (W)	Minimum Ambient Temperature (°C)
100%	421	20.1
90%	387	20.1
80%	329	20.1
70%	289	20.1
60%	253	20.1
50%	222	20.1
40%	196	20.1
30%	175	20.1
20%	158	20.1
10%	142	20.1
Active Idle	131	20.1

Line Standard	Minimum Temperature (°C)	Elevation (m)
208V / 60 Hz / 1 phase / 2 wires	20.1	255

See the Power/Temperature Details Report for additional details.

See the Host Performance Report for additional details.

SPECpower_ssj2008 Reporter Version: [SSJ 1.2.10, May 9, 2012]