SPECpower_ssj2008 Copyright (C) 2007-2025 Standard Performance Evaluation Corporation Lenovo Global Technology ThinkSystem ST45 V3 SPECpower_ssj2008 = 20,010 overall ssj_ops/watt Test Sponsor: Lenovo Global Technology SPEC License #: 9017 Tested By: Lenovo Global Technology Test Location: Beijing, China Test Date: Nov 19, 2025 Publication: Dec 18, 2025 Hardware Availability: Nov-2025 Software Availability: Jan-2024 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% | 99.7% | 2,806,077 | 105 | 26,766 90% | 90.1% | 2,536,376 | 104 | 24,363 80% | 80.1% | 2,254,713 | 103 | 21,820 70% | 69.9% | 1,968,306 | 103 | 19,177 60% | 60.0% | 1,687,761 | 70.1 | 24,064 50% | 49.9% | 1,403,841 | 62.3 | 22,523 40% | 40.0% | 1,127,153 | 56.8 | 19,845 30% | 29.9% | 842,512 | 52.1 | 16,171 20% | 20.0% | 563,312 | 49.7 | 11,340 10% | 10.0% | 281,097 | 45.7 | 6,145 Active Idle | 0 | 21.5 | 0 sum of ssj_ops / sum of power = | 20,010 System Under Test Set: 'sut' Set Identifier: sut Set Description: System Under Test # of Identical Nodes: 1 Comment: 'SUT' HARDWARE Hardware Vendor: Lenovo Global Technology Model: ThinkSystem ST45 V3 Form Factor: Tower CPU Name: AMD EPYC 4465P CPU Characteristics: 12 core, 3.4GHz, 64MB L3 Cache CPU Frequency (MHz): 3400 CPU(s) Enabled: 12 cores, 1 chip, 12 cores/chip Hardware Threads: 24 (2 / core) CPU(s) Orderable: 1 chip Primary Cache: 32 KB I + 64 KB D on chip per core Secondary Cache: 512 KB I+D on chip per core Tertiary Cache: 64 MB I+D off chip per chip Other Cache: None Memory Amount (GB): 32.0 # and size of DIMM: 2 x 16 GB Memory Details: 2 x 16GB 1Rx8 PC5-5600;slots 1 and 2 populated Power Supply Quantity and Rating 1 x 300 (W): Power Supply Details: Lenovo Disk Drive: 1 x 480GB M.2 NVMe SSD P/N:4XB7A83139 Disk Controller: Integrated NVME controller # and type of Network Interface 1 x ThinkSystem 1GbE RJ45 1-port Cards (NICs) Installed: NICs Enabled in Firmware / OS / 1/1/1 Connected: Network Speed (Mbit): 1000 Keyboard: None Mouse: None Monitor: None Optical Drives: No Other Hardware: None SOFTWARE Power Management: Enabled (see SUT Notes) Operating System (OS): Microsoft Windows Server 2022 Datacenter OS Version: Version 21H2(OS Build 20348.2227) Filesystem: NTFS JVM Vendor: Oracle Corporation JVM Version: Oracle Java HotSpot(TM) 64-Bit Server VM (build 17.0.10+11-LTS-240, mixed mode, sharing), version 17.0.10 JVM Command-line Options: -server -Xmn1900m -Xms2048m -Xmx2048m -XX:ParallelGCThreads=2 -XX:+UseLargePages -XX:LargePageSizeInBytes=2m -XX:InlineSmallCode=1500 -XX:UseAVX=1 -XX:AutoBoxCacheMax=20000 -XX:+UseParallelGC -XX:+OptimizeFill -XX:+AggressiveHeap -XX:MaxInlineSize=270 -XX:FreqInlineSize=2500 JVM Affinity: start /NODE[0] /AFFINITY [0xF, 0xF0, 0xF00, 0xF000, 0xF000, 0xF0000] JVM Instances: 6 JVM Initial Heap (MB): 2048 JVM Maximum Heap (MB): 2048 JVM Address Bits: 64 Boot Firmware Version: QIE105F Management Firmware Version: None Workload Version: SSJ 1.2.10 Director Location: Controller Other Software: None Boot Firmware Settings * AMD Secure Virtual Machine : Disable Management Firmware Settings None System Under Test Notes * Benchmark started via Windows Remote Desktop Connection * Using the local security settings console, "lock pages in memory" was enabled for the user running the benchmark * Balanced mode * Hard Disk set to turn off after 1 minute * Display set to turn off after 1 minute * Minimum processor state set to 0%. * Maximum processor state set to 100%. * Using Windows PowerShell, set the following powercfg properties: * Powercfg /setacvalueindex scheme_current sub_processor PROCTHROTTLEMIN 0 * Powercfg /setacvalueindex scheme_current sub_processor PROCTHROTTLEMAX 100 * Powercfg /setacvalueindex scheme_current sub_processor PERFEPP 0 * Powercfg /setacvalueindex scheme_current sub_processor perfautonomous 1 * Powercfg /setactive scheme_current * Each JVM instance was bound to 4 logical processors * The system ROM used for this result contains AMD AGESA version 3240400B00000000 for the AMD EYPC 4465P processor. Controller System HARDWARE Hardware Vendor: Lenovo Global Technology Model: Thinksystem SR665 CPU Description: 2 x AMD EPYC 7773X Memory amount (GB): 512 SOFTWARE Operating System (OS): Microsoft Windows Server 2022 DataCenter - Version 21H2 (OS Build 20348.1249) JVM Vendor: Oracle Corporation JVM Version: Oracle Java HotSpot(TM) 64-Bit Server VM (build 24.80-b11, mixed mode), version 1.7.0_80 CCS Version: 1.2.6 Measurement Devices POWER ANALYZER PWR1 Hardware Vendor: YOKOGAWA, Inc. Model: WT310E Serial Number: C3SH31010E Connectivity: USB Input Connection: Default Metrology Institute: China National Accreditation Service for Conformity Assessment (CNAS) Accredited by: CHINA CEPREI LABORATORY CALIBRATION & TESTING CENTRB Calibration Label: 1GA25011731-0002 Date of Calibration: 15-Sep-2025 PTDaemon Host System: same as CCS PTDaemon Host OS: same as CCS PTDaemon Version: 1.11.3-a7835373-20251015 Setup Description: Connected to PSU 1 TEMPERATURE SENSOR TEMP1 Hardware Vendor: Digi International, Inc. Model: Watchport/H Driver Version: 5.70.105.0 Connectivity: USB PTDaemon Host System: same as CCS PTDaemon Host OS: same as CCS Setup Description: 50 mm in front of SUT main intake Notes * SPECpower_ssj.props input.load_level.number_warehouses set to 24 due to a known inconsistency in processor reporting with this Java version. Aggregate Electrical and Environmental Data Target Load | Average | Minimum | Active | Ambient | Power (W) | Temperature | | (Degrees C) ----------- | ---------- | ------------- 100% | 105 | 20.9 90% | 104 | 21.0 80% | 103 | 21.2 70% | 103 | 21.3 60% | 70.1 | 21.4 50% | 62.3 | 21.6 40% | 56.8 | 21.6 30% | 52.1 | 21.6 20% | 49.7 | 21.6 10% | 45.7 | 21.6 Active Idle | 21.5 | 21.6 Line Standard | Minimum | Elevation (m) | Temperature | | (Degrees C) | ------------------------- | --------------- | --------------- 220V / 50 Hz / 1 phase / | 20.9 | 43 2 wires | | See the Power/Temperature Details Report (power_ssj2008-20251201-01548-power.txt) for additional details. Aggregate Performance Data Target Load | Actual Load | ssj_ops | | Target | Actual ----------------- | ----------------- | ----------------- | ----------------- Calibration 1 | | | 2,765,139 Calibration 2 | | | 2,812,514 Calibration 3 | | | 2,817,463 ssj_ops@calibrated=2,814,989 100% | 99.7% | 2,814,989 | 2,806,077 90% | 90.1% | 2,533,490 | 2,536,376 80% | 80.1% | 2,251,991 | 2,254,713 70% | 69.9% | 1,970,492 | 1,968,306 60% | 60.0% | 1,688,993 | 1,687,761 50% | 49.9% | 1,407,494 | 1,403,841 40% | 40.0% | 1,125,995 | 1,127,153 30% | 29.9% | 844,497 | 842,512 20% | 20.0% | 562,998 | 563,312 10% | 10.0% | 281,499 | 281,097 Active Idle | | 0 | 0 See the Host Performance Report (power_ssj2008-20251201-01548.WIN-F9VKUN2L28K.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]