SPECpower_ssj2008 Copyright (C) 2007-2026 Standard Performance Evaluation Corporation Dell Inc. PowerEdge R7725 SPECpower_ssj2008 = 11,611 overall ssj_ops/watt Test Sponsor: Dell Inc. SPEC License #: 6573 Tested By: Dell Inc. Test Location: Round Rock, TX, USA Test Date: Dec 18, 2025 Publication: Apr 22, 2026 Hardware Availability: Nov-2024 Software Availability: Jul-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% | 99.7% | 16,825,419 | 932 | 18,046 90% | 90.0% | 15,179,022 | 928 | 16,351 80% | 80.0% | 13,490,072 | 913 | 14,773 70% | 70.0% | 11,812,977 | 880 | 13,429 60% | 60.0% | 10,122,484 | 831 | 12,182 50% | 50.0% | 8,427,653 | 777 | 10,848 40% | 40.0% | 6,746,155 | 712 | 9,477 30% | 30.0% | 5,054,826 | 639 | 7,911 20% | 20.0% | 3,376,813 | 546 | 6,181 10% | 10.0% | 1,688,904 | 453 | 3,724 Active Idle | 0 | 374 | 0 sum of ssj_ops / sum of power = | 11,611 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 Form Factor: 2U CPU Name: AMD EPYC 9355 3.55 GHz CPU Characteristics: 32 core, 3.55 GHz, 256 MB L3 Cache, Max Boost Clock up to 4.4 GHz CPU Frequency (MHz): 3550 CPU(s) Enabled: 64 cores, 2 chips, 32 cores/chip Hardware Threads: 128 (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: 256 MB I+D on chip per chip, 32 MB shared / 4 cores Other Cache: None Memory Amount (GB): 1536 # and size of DIMM: 24 x 64 GB Memory Details: 64 GB 2Rx4 PC5-6400-R, Slots A1-12, B1-12 populated. Power Supply Quantity and Rating 2 x 3200 (W): Power Supply Details: 2 x Delta 3200W Titanium Efficiency (DPN - J0KHH) Disk Drive: 4 x 3.84 TB E3.S NVMe (DPN - 6RC59), 2 x 480 GB M.2 NVMe (DPN - 3JC4V) Disk Controller: Onboard PCIe SSD Backplane, PCIe attached Boot Optimized Storage (BOSS) card # and type of Network Interface 1 x Broadcom 5719 Quad Port 1GbE LOM, 1 x Cards (NICs) Installed: Broadcom 57414 Dual Port 25GbE LOM NICs Enabled in Firmware / OS / 6/6/1 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 17.0.16+12-LTS-247, mixed mode, sharing) JVM Command-line Options: -server -Xms1500m -Xmx1500m -Xmn1300m -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: start /NODE [0-15] /AFFINITY [0xF,0xF0] JVM Instances: 32 JVM Initial Heap (MB): 1500 JVM Maximum Heap (MB): 1500 JVM Address Bits: 64 Boot Firmware Version: 1.5.3 Management Firmware Version: 1.20.80.50 A00 Workload Version: SSJ 1.2.10 Director Location: Controller Other Software: None Boot Firmware Settings * NUMA Nodes per Socket: 4 * L3 Cache as NUMA Domain: Enabled * System Profile: Performance Management Firmware Settings Default Thermal Profile Settings 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 128 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 Intel microcode 5A21000B Version for the Intel Xeon processor Controller System HARDWARE Hardware Vendor: Dell Inc Model: PowerEdge T150 CPU Description: Intel Xeon E-2378, 2.60 GHz Memory amount (GB): 32 SOFTWARE Operating System (OS): Microsoft Windows Server 2022 Datacenter JVM Vendor: Oracle Corporation JVM Version: Hotspot(TM) Client VM, version 15.0.2+7 (build 15.0.2+7, mixed mode) CCS Version: 1.2.6 Measurement Devices POWER ANALYZER PWR1 Hardware Vendor: Yokogawa Meters and Instruments Corporation Model: WT310 Serial Number: T11733384 Connectivity: RS-232 Input Connection: Default Metrology Institute: NIST Accredited by: TesCom Calibration Label: T126624 Date of Calibration: 13-Aug-2025 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% | 932 | 25.7 90% | 928 | 25.7 80% | 913 | 25.6 70% | 880 | 25.6 60% | 831 | 25.6 50% | 777 | 25.6 40% | 712 | 25.6 30% | 639 | 25.6 20% | 546 | 25.6 10% | 453 | 25.6 Active Idle | 374 | 25.6 Line Standard | Minimum | Elevation (m) | Temperature | | (Degrees C) | ------------------------- | --------------- | --------------- 208V / 60 Hz / 1 phase / | 25.6 | 255 2 wires | | See the Power/Temperature Details Report (power_ssj2008-20260406-01562-power.txt) for additional details. Aggregate Performance Data Target Load | Actual Load | ssj_ops | | Target | Actual ----------------- | ----------------- | ----------------- | ----------------- Calibration 1 | | | 17,122,854 Calibration 2 | | | 16,872,381 Calibration 3 | | | 16,869,425 ssj_ops@calibrated=16,870,903 100% | 99.7% | 16,870,903 | 16,825,419 90% | 90.0% | 15,183,813 | 15,179,022 80% | 80.0% | 13,496,722 | 13,490,072 70% | 70.0% | 11,809,632 | 11,812,977 60% | 60.0% | 10,122,542 | 10,122,484 50% | 50.0% | 8,435,451 | 8,427,653 40% | 40.0% | 6,748,361 | 6,746,155 30% | 30.0% | 5,061,271 | 5,054,826 20% | 20.0% | 3,374,181 | 3,376,813 10% | 10.0% | 1,687,090 | 1,688,904 Active Idle | | 0 | 0 See the Host Performance Report (power_ssj2008-20260406-01562.FHCJ3D4-R7725.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]