Dell Inc. PowerEdge R7715 (AMD EPYC 9845, 2.10 GHz) SPECpower_ssj2008 = 37,464 overall ssj_ops/watt
Test Sponsor: Dell Inc. SPEC License #: 6573 Test Method: Single Node
Tested By: Dell Inc. Test Location: Round Rock, TX, USA Test Date: Sep 6, 2025
Hardware Availability: Mar-2025 Software Availability: Sep-2025 Publication: Oct 7, 2025
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% 17,808,614 373 47,789
90% 89.7% 16,036,385 346 46,394
80% 79.9% 14,285,967 321 44,477
70% 70.0% 12,502,853 292 42,798
60% 60.0% 10,717,256 267 40,100
50% 50.0% 8,926,748 243 36,722
40% 40.0% 7,150,801 219 32,727
30% 30.0% 5,359,699 192 27,902
20% 20.0% 3,574,184 163 21,874
10% 10.0% 1,790,018 134 13,367
Active Idle 0 70.0 0
∑ssj_ops / ∑power = 37,464
Graph of results
System Under Test
Set: 'sut'
Set Identifier: sut
Set Description: System Under Test
# of Identical Nodes: 1
Comment: PowerEdge R7715
Hardware
Hardware Vendor: Dell Inc.
Model: PowerEdge R7715 (AMD EPYC 9845, 2.10 GHz)
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: 160 cores, 1 chip, 160 cores/chip
Hardware Threads: 320 (2 / core)
CPU(s) Orderable: 1 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): 192
# and size of DIMM: 12 x 16 GB
Memory Details: 16GB 1Rx8 PC5-6400-R running at 5200. Slots A1-12 populated.
Power Supply Quantity and Rating (W): 1 x 800
Power Supply Details: 1 x 800W Titanium Efficiency, Dell P/N: 763VM
Disk Drive: 1 x 480GB M.2 NVMe, Dell P/N: VR56V
Disk Controller: PCIe attached Boot Optimized Storage (BOSS) card, Dell P/N: CMFVP
# and type of Network Interface Cards (NICs) Installed: 1 x Dual-port Intel E610-XT2, Dell P/N: FC0HK
NICs Enabled in Firmware / OS / Connected: 2/2/1
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 20348.3453)
Filesystem: NTFS
JVM Vendor: Oracle Corporation
JVM Version: Java HotSpot(TM) 64-Bit Server VM (build 17.0.12+8-LTS-286, mixed mode, sharing)
JVM Command-line Options: -server -Xms1500m -Xmx1500m -Xmn1300m -XX:+UseParallelGC -XX:SurvivorRatio=1 -XX:ParallelGCThreads=2 -XX:+UseLargePages -XX:LargePageSizeInBytes=2m -XX:+UseBiasedLocking -XX:UseAVX=1 -XX:AutoBoxCacheMax=20000 -XX:+OptimizeFill -XX:FreqInlineSize=2500
JVM Affinity: start /NODE [0-9] /AFFINITY [0xF,0xF0,0xF00,0xF000,0xF0000,0xF00000,0xF000000,0xF0000000]
JVM Instances: 80
JVM Initial Heap (MB): 1500
JVM Maximum Heap (MB): 1500
JVM Address Bits: 64
Boot Firmware Version: 1.2.4
Management Firmware Version: 1.20.60.50
Workload Version: SSJ 1.2.10
Director Location: Controller
Other Software: None
Boot Firmware Settings
Management Firmware Settings
Minimum Power (Performance per Watt Optimized)
System Under Test Notes
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 Active Power (W) Minimum Ambient Temperature (°C)
100% 373 22.4
90% 346 22.4
80% 321 22.4
70% 292 22.4
60% 267 22.4
50% 243 22.4
40% 219 22.4
30% 192 22.3
20% 163 22.3
10% 134 22.4
Active Idle 70.0 22.3
Line Standard Minimum Temperature (°C) Elevation (m)
208V / 60 Hz / 1 phase / 2 wires 22.3 255
See the Power/Temperature Details Report for additional details.
Aggregate Performance Data
Target Load Actual Load ssj_ops
Target Actual
Calibration 1     17,914,697
Calibration 2     17,873,248
Calibration 3     17,865,539
ssj_ops@calibrated=17,869,393
100% 99.7% 17,869,393 17,808,614
90% 89.7% 16,082,454 16,036,385
80% 79.9% 14,295,515 14,285,967
70% 70.0% 12,508,575 12,502,853
60% 60.0% 10,721,636 10,717,256
50% 50.0% 8,934,697 8,926,748
40% 40.0% 7,147,757 7,150,801
30% 30.0% 5,360,818 5,359,699
20% 20.0% 3,573,879 3,574,184
10% 10.0% 1,786,939 1,790,018
Active Idle   0 0
Graph of results
See the Host Performance Report for additional details.