SPECpower_ssj2008 Copyright (C) 2007-2026 Standard Performance Evaluation Corporation Dell Inc. PowerEdge R770AP (Intel Xeon 6980P) SPECpower_ssj2008 = 22,805 overall ssj_ops/watt Test Sponsor: Dell Inc. SPEC License #: 6573 Tested By: Dell Inc. Test Location: Round Rock, TX, USA Test Date: Jan 11, 2026 Publication: Jan 27, 2026 Hardware Availability: Dec-2025 Software Availability: Dec-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% | 99.8% | 31,355,659 | 1,185 | 26,457 90% | 90.0% | 28,281,993 | 1,114 | 25,396 80% | 80.0% | 25,133,769 | 888 | 28,296 70% | 70.0% | 22,006,300 | 812 | 27,118 60% | 60.0% | 18,867,675 | 738 | 25,571 50% | 50.0% | 15,708,551 | 664 | 23,666 40% | 40.0% | 12,560,584 | 588 | 21,364 30% | 30.0% | 9,437,727 | 516 | 18,281 20% | 20.0% | 6,295,701 | 450 | 13,989 10% | 10.0% | 3,135,646 | 381 | 8,232 Active Idle | 0 | 241 | 0 sum of ssj_ops / sum of power = | 22,805 System Under Test Set: 'sut' Set Identifier: sut Set Description: System Under Test # of Identical Nodes: 1 Comment: PowerEdge R770AP HARDWARE Hardware Vendor: Dell Inc. Model: PowerEdge R770AP (Intel Xeon 6980P) Form Factor: 2U CPU Name: Intel Xeon 6980P 2.0 GHz CPU Characteristics: 128 core, 2.0 GHz, 504 MB L3 Cache, Max Boost Clock up to 3.9 GHz CPU Frequency (MHz): 2000 CPU(s) Enabled: 256 cores, 2 chips, 256 cores/chip Hardware Threads: 512 (2 / core) CPU(s) Orderable: 1,2 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: 504 MB I+D on chip per chip Other Cache: None Memory Amount (GB): 768 # and size of DIMM: 24 x 32 GB Memory Details: 32 GB 2Rx4 PC5-6400-R running at 6400MHz Slots A1-12, B1-12 populated. Power Supply Quantity and Rating 1 x 3200 (W): Power Supply Details: 3200W Titanium Efficiency Disk Drive: 1 x 960 GB NVMe Gen4 Disk Controller: PCIe SSD Backplane # and type of Network Interface 1 x Intel(R) Eth Ntwk Adptr OCP 3.0 E610-IT4 Cards (NICs) Installed: NICs Enabled in Firmware / OS / 4/3/2 Connected: Network Speed (Mbit): 2500 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 2022 Datacenter OS Version: 21H2 (OS Build 20348.587) Filesystem: NTFS JVM Vendor: Oracle Corporation JVM Version: Java HotSpot(TM) 64-Bit Server VM (build 17.0.14+8-LTS-191, mixed mode, sharing) JVM Command-line Options: -server -Xms2048m -Xmx2048m -Xmn1900m -XX:+UseParallelGC -XX:ParallelGCThreads=2 -XX:SurvivorRatio=1 -XX:TargetSurvivorRatio=95 -XX:+UseLargePages -XX:LargePageSizeInBytes=2m -XX:+UseBiasedLocking -XX:InlineSmallCode=1500 -XX:UseAVX=1 -XX:AutoBoxCacheMax=20000 -XX:+OptimizeFill -XX:+AggressiveHeap -XX:AllocatePrefetchDistance=256 -XX:AllocatePrefetchLines=16 JVM Affinity: start /NODE [0-41] /AFFINITY [0x3,0xC,0x30,0xC0,0x300,0xC00] in addition [0,7,21,28] /AFFINITY [0x3000] JVM Instances: 256 JVM Initial Heap (MB): 2048 JVM Maximum Heap (MB): 2048 JVM Address Bits: 64 Boot Firmware Version: 1.1.6 Management Firmware Version: 10.20.80.50 A00 Workload Version: SSJ 1.2.10 Director Location: Controller Other Software: None Boot Firmware Settings * Sub NUMA Cluster set to 3-Way Clustering * MADT Core Enumeration set to Linear * Adjacent Cache Line Prefetch disabled * Hardware Prefetcher disabled * DCU Streamer Prefetcher disabled * Virtual NUMA enabled with Virtual NUMA Nodes set to 7 * System Profile set to Power Saving Dell Active Power Controller (DAPC) * Turbo Boost disabled * C-States set to Autonomous Management Firmware Settings Minimum Power (Performance per Watt Optimized) System Under Test Notes * Each JVM instance was bound to 2 logical processors * Using the local security settings console, "lock pages in memory" was enabled for the user running the benchmark * Run initiated via Windows Remote Desktop Connection * Hard Disk set to turn off after 1 minute * Display set to turn off after 1 minute * Disabled one connected NIC in Network Connections * SPECpower_ssj.props input.load_level.number_warehouses set to 512 * The System ROM used for this result contains Intel microcode 0x10003f3 Version for the Intel Xeon processor Controller System HARDWARE Hardware Vendor: Dell Inc Model: PowerEdge R650xs CPU Description: 2 x Intel Xeon Gold 5315Y, 3.20 GHz Memory amount (GB): 512 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 Measurement Devices 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 Notes None Aggregate Electrical and Environmental Data Target Load | Average | Minimum | Active | Ambient | Power (W) | Temperature | | (Degrees C) ----------- | ---------- | ------------- 100% | 1,185 | 21.1 90% | 1,114 | 21.2 80% | 888 | 21.1 70% | 812 | 21.1 60% | 738 | 21.1 50% | 664 | 21.1 40% | 588 | 21.1 30% | 516 | 21.1 20% | 450 | 21.1 10% | 381 | 21.1 Active Idle | 241 | 21.0 Line Standard | Minimum | Elevation (m) | Temperature | | (Degrees C) | ------------------------- | --------------- | --------------- 208V / 60 Hz / 1 phase / | 21.0 | 255 2 wires | | See the Power/Temperature Details Report (power_ssj2008-20260112-01551-power.txt) for additional details. Aggregate Performance Data Target Load | Actual Load | ssj_ops | | Target | Actual ----------------- | ----------------- | ----------------- | ----------------- Calibration 1 | | | 31,871,663 Calibration 2 | | | 31,408,326 Calibration 3 | | | 31,437,126 ssj_ops@calibrated=31,422,726 100% | 99.8% | 31,422,726 | 31,355,659 90% | 90.0% | 28,280,453 | 28,281,993 80% | 80.0% | 25,138,181 | 25,133,769 70% | 70.0% | 21,995,908 | 22,006,300 60% | 60.0% | 18,853,636 | 18,867,675 50% | 50.0% | 15,711,363 | 15,708,551 40% | 40.0% | 12,569,090 | 12,560,584 30% | 30.0% | 9,426,818 | 9,437,727 20% | 20.0% | 6,284,545 | 6,295,701 10% | 10.0% | 3,142,273 | 3,135,646 Active Idle | | 0 | 0 See the Host Performance Report (power_ssj2008-20260112-01551.WIN-3SERFVNQ46K.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]