SPECpower_ssj2008 Copyright (C) 2007-2025 Standard Performance Evaluation Corporation Dell Inc. PowerEdge R6725 (AMD EPYC 9845, 2.10 GHz) SPECpower_ssj2008 = 36,654 overall ssj_ops/watt Test Sponsor: Dell Inc. SPEC License #: 6573 Tested By: Dell Inc. Test Location: Round Rock, TX, USA Test Date: Oct 16, 2025 Publication: Nov 4, 2025 Hardware Availability: Mar-2025 Software Availability: Sep-2025 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% | 99.3% | 33,267,172 | 711 | 46,822 90% | 89.8% | 30,064,850 | 662 | 45,427 80% | 79.7% | 26,689,373 | 611 | 43,665 70% | 68.5% | 22,947,456 | 562 | 40,817 60% | 60.0% | 20,096,512 | 524 | 38,365 50% | 50.0% | 16,751,863 | 466 | 35,950 40% | 40.0% | 13,396,888 | 411 | 32,633 30% | 30.0% | 10,060,939 | 357 | 28,172 20% | 20.0% | 6,703,915 | 307 | 21,805 10% | 10.0% | 3,345,243 | 256 | 13,073 Active Idle | 0 | 135 | 0 sum of ssj_ops / sum of power = | 36,654 System Under Test Set: 'sut' Set Identifier: sut Set Description: System Under Test # of Identical Nodes: 1 Comment: PowerEdge R6725 HARDWARE Hardware Vendor: Dell Inc. Model: PowerEdge R6725 (AMD EPYC 9845, 2.10 GHz) Form Factor: 1U 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 PC5-6400-R running at 4800MT/s Slots A1-12, B1-12 populated Power Supply Quantity and Rating 1 x 1100 (W): Power Supply Details: 1100W Titanium Efficiency, Dell P/N: D5NDX Disk Drive: 1 x 480 GB M.2 NVMe, Dell P/N: VR66V Disk Controller: PCIe attached Boot Optimized Storage (BOSS) card, 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: Balanced power plan in OS (see SUT notes) Operating System (OS): Microsoft Windows Server 2025 Datacenter OS Version: Version 24H2 (OS Build 26100.1) Filesystem: NTFS JVM Vendor: Oracle Corporation JVM Version: Java Hotspot(TM) 64-Bit Server VM (build 15.0.2+7-27, mixed mode,sharing) JVM Command-line Options: -server -Xms1500m -Xmx1500m -Xmn1300m -XX:+UseParallelGC -XX:SurvivorRatio=1 -XX:TargetSurvivorRatio=99 -XX:ParallelGCThreads=2 -XX:+UseLargePages -XX:UseLargePageSizeInBytes=2m -XX:+UseBiasedLocking -XX:UseAVX=1 -XX:AutoBoxCacheMax=20000 -XX:+OptimizeFill -XX:FreqInlineSize=2500 JVM Affinity: start /NODE [0-19] /AFFINITY [0xF,0XF0,0XF00,0XF000,0XF0000,0XF00000,0XF0 00000,0XF0000000] JVM Instances: 160 JVM Initial Heap (MB): 1500 JVM Maximum Heap (MB): 1500 JVM Address Bits: 64 Boot Firmware Version: 1.4.1 Management Firmware Version: 1.20.70.50 Workload Version: SSJ 1.2.10 Director Location: Controller Other Software: None Boot Firmware Settings * 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 * Secure Memory Encryption: Enabled * Secure Nested Paging: Enabled * AVX 512: Enabled * PPT Control: Manual * Customized PPT: 400 * User Accessible USB Ports: All Ports Off * System Profile: CustomMemory Frequency: 4800 MT/s * Turbo Boost: Disabled * Memory Patrol Scrub: Disabled * ApbDis: Enabled * ApbDis Fixed Socket P-State: P2 * BoostFMax: Manual * BoostFMax: 2200 * GMI Folding: Enabled * Periodic Directory Rinse (PDR) Tuning: Blended * Power Profile Select: Balanced Memory Performance Mode * CPPC: Disabled * Adaptive Allocation: Enabled * XGMI Max Speed: 20 GT/s * Dynamic Link Width Management (DLWM): Forced Value * DRAM Refresh Delay: Performance * DIMM Self Healing (Post Package Repair) on Uncorrectable Memory Error: Disabled Management Firmware Settings Minimum Power (Performance per Watt Optimized) System Under Test Notes * Each JVM instance was bound to 4 logical processors * 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 * Display set to turn off after 1 minute * SPECpower_ssj.props input.load_level.number_warehouses set to 640 due to a known inconsistency in processor reporting with this Java version * Power Plan Minimum processor state set to 0% * Power Plan Maximum processor state set to 100% * The System ROM used for this result contains AMD AGESA version 4F10100B for the AMD EPYC 9845 processor Controller System HARDWARE Hardware Vendor: Dell Inc Model: PowerEdge R6515 CPU Description: AMD EPYC 7H12, 2.60 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: WT210 Serial Number: 91H648897 Connectivity: RS-232 Input Connection: Default Metrology Institute: NIST Accredited by: TesCom Calibration Label: 334272376 Date of Calibration: 18-Dec-2024 PTDaemon Host System: same as CCS PTDaemon Host OS: same as CCS PTDaemon Version: 1.11.1-462c978e-20240907 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 | 21.6 90% | 662 | 21.6 80% | 611 | 21.6 70% | 562 | 21.6 60% | 524 | 21.6 50% | 466 | 21.6 40% | 411 | 21.6 30% | 357 | 21.6 20% | 307 | 21.6 10% | 256 | 21.6 Active Idle | 135 | 21.6 Line Standard | Minimum | Elevation (m) | Temperature | | (Degrees C) | ------------------------- | --------------- | --------------- 208V / 60 Hz / 1 phase / | 21.6 | 255 2 wires | | See the Power/Temperature Details Report (power_ssj2008-20251021-01543-power.txt) for additional details. Aggregate Performance Data Target Load | Actual Load | ssj_ops | | Target | Actual ----------------- | ----------------- | ----------------- | ----------------- Calibration 1 | | | 33,680,792 Calibration 2 | | | 33,514,164 Calibration 3 | | | 33,461,977 ssj_ops@calibrated=33,488,070 100% | 99.3% | 33,488,070 | 33,267,172 90% | 89.8% | 30,139,263 | 30,064,850 80% | 79.7% | 26,790,456 | 26,689,373 70% | 68.5% | 23,441,649 | 22,947,456 60% | 60.0% | 20,092,842 | 20,096,512 50% | 50.0% | 16,744,035 | 16,751,863 40% | 40.0% | 13,395,228 | 13,396,888 30% | 30.0% | 10,046,421 | 10,060,939 20% | 20.0% | 6,697,614 | 6,703,915 10% | 10.0% | 3,348,807 | 3,345,243 Active Idle | | 0 | 0 See the Host Performance Report (power_ssj2008-20251021-01543.SLR6704.txt) for additional details. Copyright (C) 2007-2025 Standard Performance Evaluation Corporation http://www.spec.org - info@spec.org SPECpower_ssj2008 Reporter Version: [SSJ 1.2.10, May 9, 2012]