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ThinkSystem SR665

Exceptional performance in 2U


15 Mar 2021
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Unprecedented Performance

The Lenovo ThinkSystem SR665 utilizes AMD EPYC™ architecture to deliver the next era of solution performance and TCO optimization for software-defined workloads, database, big data & analytics, virtualization, virtualized desktop infrastructure (VDI), and HPC/AI workloads.

The combination of two AMD EPYC 7003 Series CPUs with class-leading memory speed, storage, and GPU density rapidly outpace the power of prior generation two-socket servers. Lenovo’s lauded system reliability, management capabilities, and security infrastructure layer on to the exceptional value that the ThinkSystem SR665 brings to the data center. 

The modern data center demands ever-expanding capability, requiring server technology to deliver more performance that tests the limits of physics. With enterprise-class AMD EPYC™ 7003 Series processors, the new standard for the modern data center CPU, the ThinkSystem SR665 features an unprecedented 128 cores and 128 Gen4 PCIe lanes in a server to maximize server performance and decrease network bottlenecks critical for HPC/AI workloads.

Adaptive Design

The ThinkSystem SR665 is an all-purpose workhorse, adaptable to numerous enterprise workloads to address a wide range of data management solutions in hybrid data center environments. 

The dual AMD EPYC 7003™ Series CPUs combined with support for multiple GPUs streamlines performance for virtual desktop infrastructure (VDI) instances, providing the technical resources to aid in scale-out VDI instances for a growing enterprise workforce. 

Cutting-edge storage configurations include choices ranging from high capacity HDDs to lightning-quick NVMe drives to maximize both data capacity and throughput performance. These storage features render the system ideal for database and big data/ analytics workloads. 

Outfitted with up to 8x PCIe 4.0 slots, the ThinkSystem SR665 provides the expandability, networking scalability, and speed necessary to ensure that I/O-intensive workloads such as software defined networking, and grid computing  do not encounter bottlenecks that reduce full enterprise efficiency. 

Innovative Management

The ThinkSystem SR665 features Lenovo’s lauded XClarity system management suite. The XClarity management controller supports an easy-to-use application with industry standard Redfish-compliant REST APIs that provide streamlined hardware provisioning and maintenance, enabling a data-driven, centralized view of data center operations.

Trust Lenovo ThinkShield to protect and defend your data center infrastructure from attacks, with a comprehensive end to end approach to security that begins with development and continues through supply chain and the full life cycle of the device. AMD EPYC processors also offer unique security features, embedded with secure boot and full memory encryption capabilities to address growing security-threats. 

Finally, Lenovo’s portfolio of services support the full lifecycle of your Lenovo IT assets - from planning, deployment and support to asset recovery.


Product Name(s) ThinkSystem SR665
Form Factor 2U rack server
Processors Up to 2 AMD EPYC™ 7002 / 7003 Series Processors, up to 64C, 280W
Memory 32x DDR4 memory slots; Maximum 4TB using 128GB 3DS RDIMMs; up to 1DPC at 3200MHz, 2DPC at 3200MHz
Drive Bays Up to 20x 3.5-inch or 40x 2.5-inch drives; Maximum of 32x NVMe drives with 1:2 connection
Expansion Slots Up to 8x PCIe 4.0 slots, 1x OCP 3.0 adapter slot
GPU Up to 8x single-width GPUs or 3x double-width GPUs
Network Interface OCP 3.0 mezz adapter, PCIe adapters
Power Dual redundant PSUs (up to 1800W Platinum)
Ports Front: 1x USB 3.1 G1, 1x USB 2.0, 1x VGA (optional)
Rear: 3x USB 3.1 G1, 1x Serial port (optional) 1x RJ-45 (management)
System Management Lenovo XClarity Controller
OS Support Microsoft Windows Server, SUSE Linux Enterprise Server, Red Hat Enterprise Linux, VMware ESXi
Limited Warranty 1- and 3-year customer replaceable unit and onsite services, next business day 9x5; optional service upgrades

For more details please consult the ThinkSystem SR665 product guide.

Why Lenovo

Lenovo is the leading provider of x86 systems for the data center. The portfolio includes rack, tower, blade, dense and converged systems, and supports enterprise class performance, reliability and security.

Lenovo also offers a full range of networking, storage, software and solutions, and comprehensive services supporting business needs throughout the IT lifecycle.

For More Information

To learn more about the Lenovo ThinkSystem SR665, contact your Lenovo representative or Business Partner or visit For detailed specifications consult the ThinkSystem SR665 product guide.

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Availability: Offers, prices, specifications and availability may change without notice. Lenovo is not responsible for photographic or typographic errors. Warranty: For a copy of applicable warranties, write to: Lenovo Warranty Information, 1009 Think Place, Morrisville, NC, 27560. Lenovo makes no representation or warranty regarding third-party products or services.

Trademarks: Lenovo, the Lenovo logo, ThinkShield®, ThinkSystem®, and XClarity® are trademarks or registered trademarks of Lenovo. Linux® is the trademark of Linus Torvalds in the U.S. and other countries. Microsoft®, Windows Server®, and Windows® are trademarks of Microsoft Corporation in the United States, other countries, or both. Other company, product, or service names may be trademarks or service marks of others.

Document number DS0109, published March 15, 2021. For the latest version, go to

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