SPECpower_ssj2008 Copyright (C) 2007-2026 Standard Performance Evaluation Corporation Dell Inc. PowerEdge R7725 (AMD EPYC 9845) SPECpower_ssj2008 = 38,812 overall ssj_ops/watt Test Sponsor: Dell Inc. SPEC License #: 6573 Tested By: Dell Inc. Test Location: Round Rock, TX, USA Test Date: Jun 12, 2026 Publication: Jun 30, 2026 Hardware Availability: May-2026 Software Availability: Jan-2026 Test Method: Single Node System Source: Single Supplier System Designation: Server Power Provisioning: Line-powered Benchmark Results Summary Performance | Power | Performance | | to Power | | Ratio Target Load | Actual Load | ssj_ops | Average | | | | Active Power | | | | (W) | ------------- | ------------- | ------------- | ------------- | ------------- 100% | 99.6% | 34,514,652 | 711 | 48,560 90% | 90.0% | 31,174,321 | 664 | 46,945 80% | 80.0% | 27,730,297 | 612 | 45,286 70% | 70.0% | 24,264,755 | 561 | 43,237 60% | 60.0% | 20,782,477 | 510 | 40,753 50% | 50.0% | 17,316,045 | 459 | 37,766 40% | 40.0% | 13,845,369 | 404 | 34,242 30% | 30.0% | 10,397,372 | 348 | 29,840 20% | 20.0% | 6,932,172 | 291 | 23,804 10% | 10.0% | 3,464,363 | 235 | 14,724 Active Idle | 0 | 110 | 0 sum of ssj_ops / sum of power = | 38,812 System Under Test Set: 'sut' Set Identifier: sut Set Description: System Under Test # of Identical Nodes: 1 Comment: PowerEdge R7725 HARDWARE Hardware Vendor: Dell Inc. Model: PowerEdge R7725 (AMD EPYC 9845) Form Factor: 2U CPU Name: AMD EPYC 9845, 2.10 GHz CPU Characteristics: 160 core, 2.10 GHz, 320 MB L3 Cache, Max Boost Clock up to 3.70 GHz CPU Frequency (MHz): 2100 CPU(s) Enabled: 320 cores, 2 chips, 160 cores/chip Hardware Threads: 640 (2 / core) CPU(s) Orderable: 1,2 chip Primary Cache: 32 KB I + 48 KB D on chip per core Secondary Cache: 1 MB I+D on chip per core Tertiary Cache: 320 MB I+D on chip per chip Other Cache: None Memory Amount (GB): 384 # and size of DIMM: 24 x 16 GB Memory Details: 16 GB 1Rx8 PC5-6400R, slots A1-A12, B1-B12 populated. Power Supply Quantity and Rating 1 x 1500 (W): Power Supply Details: 1500W Titanium Efficiency (Dell P/N: 1PKMH) Disk Drive: 1 x 480 GB NVMe M.2 SSD (Dell P/N- 3H1F4) Disk Controller: BOSS N1 (Dell P/N- CMFVP) # and type of Network Interface 1 x Dual-port Intel E610-XT2, (Dell P/N: Cards (NICs) Installed: FC0HK) NICs Enabled in Firmware / OS / 2/2/1 Connected: Network Speed (Mbit): 1000 Keyboard: None Mouse: None Monitor: None Optical Drives: No Other Hardware: None SOFTWARE Power Management: Power Saver plan in OS (see SUT notes) Operating System (OS): Microsoft Windows Server 2022 Datacenter OS Version: Version 21H2 (OS Build 20348.2113) Filesystem: ntfs JVM Vendor: Oracle Corporation JVM Version: Java HotSpot(TM) 64-Bit Server VM (build 17.0.18+8-LTS-264, mixed mode, sharing) JVM Command-line Options: -server -Xmn1300m -Xms1550m -Xmx1550m -XX:+UseParallelGC -XX:ParallelGCThreads=2 -XX:+UseLargePages -XX:InlineSmallCode=3900 -XX:AutoBoxCacheMax=20000 -XX:FreqInlineSize=2500 -XX:CompileThresholdScaling=210 -XX:AllocatePrefetchDistance=384 -XX:AllocatePrefetchLines=10 -XX:+UseBiasedLocking -XX:+AggressiveHeap -XX:+OptimizeFill -XX:UseAVX=1 -XX:LargePageSizeInBytes=2m JVM Affinity: start /NODE [0-19] /AFFINITY [0xF,0XF0,0XF00,0XF000,0XF0000,0XF00000,0XF0 00000,0XF0000000] JVM Instances: 160 JVM Initial Heap (MB): 1550 JVM Maximum Heap (MB): 1550 JVM Address Bits: 64 Boot Firmware Version: 1.7.6 Management Firmware Version: 1.30.10.50 Workload Version: SSJ 1.2.10 Director Location: Controller Other Software: None Boot Firmware Settings * Dram Refresh Delay = Performance * DIMM Self Healing (Post Package Repair) on Uncorrectable Memory Error = Disabled * Virtualization Technology = Disabled * L1 Stream HW Prefetcher = Disabled * L2 Stream HW Prefetcher = Disabled * L1 Stride Prefetcher = Disabled * Numa Nodes per socket = 2 * L3 cache as NUMA domain = Enabled * AVX 512 = Enabled * ACPI CST C2 Latency = 800 * System Profile = Custom * Memory Frequency = 4800MT/s * Turbo Boost = Disabled * Determinism Control = Manual * Determinism Slider = Performance Determinism * Power Profile Select = Balanced Memory Performance Mode * Adaptive Allocation = Enabled * CPPC = Disabled * XGMI Max Speed = 20GT/s * PPT control = Manual * Customized PPT = 320 * Boost Fmax = Manual * Manual Boost FMAX = 2400 * Memory Patrol Scrub = Disabled * ApbDis = Enabled * ApbDis fixed DF P-state = P2 * PDR Tuning = Blended * TDP Control = Manual * Customized cTDP = 320 * DLWM = Forced value * DLWM forced width = x4 Management Firmware Settings Minimum Power (Performance per Watt Optimized) System Under Test Notes * Each JVM instance was bound to 4 logical processors * SPECpower_ssj.props input.load_level.number_warehouses set to 640 due to a known inconsistency in processor reporting with this Java version * Using Windows PowerShell, set the following powercfg properties * powercfg /setacvalueindex scheme_current sub_processor CPOVERUTIL 60 * Powercfg /setacvalueindex scheme_current sub_processor PERFBOOSTMODE 3 * powercfg /setacvalueindex scheme_current sub_processor CPMINCORES1 100 * powercfg /setacvalueindex scheme_current sub_processor CPMINCORES 100 * powercfg /setacvalueindex scheme_current sub_processor PERFDECTHRESHOLD 95 * powercfg /setacvalueindex scheme_current sub_processor PERFINCTHRESHOLD 98 * Powercfg /setactive scheme_current * Power Plan Minimum processor state set to 0% * Power Plan Maximum processor state set to 100% * Using the local security settings console, "lock pages in memory" was enabled for the user running the benchmark * Hard Disk set to turn off after 1 minute * The system ROM used for this result contains AMD AGESA version 5910100B00000000 for the AMD EPYC 9845 processor. Controller System HARDWARE Hardware Vendor: Dell Inc Model: PowerEdge R6515 CPU Description: 1 x AMD EPYC 7H12, 2.6 GHz Memory amount (GB): 512 SOFTWARE Operating System (OS): Microsoft Windows Server 2022 Standard JVM Vendor: Oracle Corporation JVM Version: Java HotSpot(TM) 64-Bit Server VM (build 15.0.2+7-27, mixed mode, sharing) CCS Version: 1.2.6 Measurement Devices POWER ANALYZER PWR1 Hardware Vendor: Yokogawa Meters and Instruments Corporation Model: WT310 Serial Number: T11733386 Connectivity: RS-232 Input Connection: Default Metrology Institute: NIST Accredited by: TesCom Calibration Label: TI26623 Date of Calibration: 13-Aug-2025 PTDaemon Host System: same as CCS PTDaemon Host OS: same as CCS PTDaemon Version: 1.11.4-5bcc369b-20260119 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 Notes None Aggregate Electrical and Environmental Data Target Load | Average | Minimum | Active | Ambient | Power (W) | Temperature | | (Degrees C) ----------- | ---------- | ------------- 100% | 711 | 22.6 90% | 664 | 22.6 80% | 612 | 22.6 70% | 561 | 22.6 60% | 510 | 22.6 50% | 459 | 22.6 40% | 404 | 22.6 30% | 348 | 22.6 20% | 291 | 22.6 10% | 235 | 22.6 Active Idle | 110 | 22.6 Line Standard | Minimum | Elevation (m) | Temperature | | (Degrees C) | ------------------------- | --------------- | --------------- 208V / 60 Hz / 1 phase / | 22.6 | 255 2 wires | | See the Power/Temperature Details Report (power_ssj2008-20260615-01578-power.txt) for additional details. Aggregate Performance Data Target Load | Actual Load | ssj_ops | | Target | Actual ----------------- | ----------------- | ----------------- | ----------------- Calibration 1 | | | 34,602,081 Calibration 2 | | | 34,633,193 Calibration 3 | | | 34,653,511 ssj_ops@calibrated=34,643,352 100% | 99.6% | 34,643,352 | 34,514,652 90% | 90.0% | 31,179,017 | 31,174,321 80% | 80.0% | 27,714,681 | 27,730,297 70% | 70.0% | 24,250,346 | 24,264,755 60% | 60.0% | 20,786,011 | 20,782,477 50% | 50.0% | 17,321,676 | 17,316,045 40% | 40.0% | 13,857,341 | 13,845,369 30% | 30.0% | 10,393,006 | 10,397,372 20% | 20.0% | 6,928,670 | 6,932,172 10% | 10.0% | 3,464,335 | 3,464,363 Active Idle | | 0 | 0 See the Host Performance Report (power_ssj2008-20260615-01578.WIN-CKU6IPL9I0A.txt) for additional details. Copyright (C) 2007-2026 Standard Performance Evaluation Corporation http://www.spec.org - info@spec.org SPECpower_ssj2008 Reporter Version: [SSJ 1.2.10, May 9, 2012]