| Comparing the ThinkSystem SR650 V2 to the previous generation SR650 |
| Feature | SR650 | SR650 V2 | Benefits |
| Processor | 2x 2nd Gen Intel Xeon Scalable Processor | 2x 3rd Gen Intel Xeon Scalable Processor | The latest high-performance processors from Intel |
| Up to 28 cores & 205W per CPU | Up to 40 cores & 270W per CPU | Greater computing performance with top bin CPUs |
| 48x PCIe 3.0 lanes per CPU | 64x PCIe 4.0 lanes per CPU | Faster PCIe connectivity |
| | | More PCIe lanes means more NVMe drives |
| Memory | 6 channels per CPU | 8 channels per CPU | Faster memory |
| 24x TruDDR4 (R/LR/3DS) 2933 MHz DIMMs | 32x TruDDR4 (RDIMM/3DS) 3200 MHz DIMMs | Increased capacity |
| Up to 2DPC @ 2933MHz | Up to 1DPC & 2DPC @ 3200MHz | Support for new generation persistent memory |
| Max 3 TB with 24x 128 GB DIMMs | Max 8 TB with 32x 256 GB DIMMs | |
| Intel Optane PMem 100 Series | Intel Optane PMem 200 Series | |
| Disk | Up to 26 total drives bays | Up to 40 total 2.5-inch drives bays | More configuration choices |
| Up to 12x 3.5-inch or 24x 2.5-inch front bays | Up to 12x 3.5-inch or 24x 2.5-inch front bays | Larger number of NVMe drives |
| 2x 3.5-inch rear SAS/SATA | 4x 3.5-inch or 8x 2.5-inch mid drive bays | New 7mm HS drives for OS boot |
| Up to 24x 2.5-inch NVMe drives | 2x 2.5-inch rear SAS/SATA/NVMe | New mid and rear drive bay choices |
| 2x Internal M.2 with optional RAID 1 | Up to 32x 2.5-inch NVMe drives | Higher maximum capacity |
| | 2x 7mm hot-swap rear SAS/SATA/NVMe for boot | Support mixing 2.5"/3.5" HDD and NVMe drives |
| | 2x Internal M.2 with optional RAID 1 | |
| RAID | 12Gb SAS/SATA/RAID support | 12Gb SAS/SATA/RAID support | Support for onboard SATA |
| PCIe 3.0 adapters | PCIe 3.0 and PCIe 4.0 adapters | Intel VROC for onboard NVMe RAID |
| Range of 8-, 16- and 24-port RAID adapters | Onboard SATA support with RAID | Featuring industry’s latest PCIe Gen4 based RAID adapters |
| 8- and 16-port HBAs | Onboard VROC NVMe support with RAID | More onboard ports and NVMe Retimers lower the cost of NVMe support |
| 4x Onboard NVMe ports | Wider range of 8-, 16- and 32-port RAID adapters + SAS expander | |
| NVMe switch adapter support | 8- and 16-port HBAs | |
| | 12x Onboard NVMe ports | |
| | NVMe Retimer adapters for 16x NVMe | |
| Networking | Selectable LOM, 1GbE or 10GbE | Selectable OCP 3.0, 1GbE, 10GbE or 25GbE | Improved performance & flexibility |
| Optional ML2 and PCIe adapters | Optional PCIe adapters | OCP slot supports 25GbE |
| 1GbE dedicated management port | 1GbE dedicated management port | |
| PCIe | Up to 6x PCIe 3.0 slots | Up to 8x PCIe 4.0 slots | New PCIe 4.0 support |
| 1x dedicated RAID slot | 1x internal bay for cabled RAID/HBA |
| GPU support | Up to 5x NVIDIA T4 GPUs | Up to 8x NVIDIA T4 GPUs | More GPUs means more processing power per 2U server |
| Up to 2x double-wide 300W GPUs | Up to 3x double-wide GPUs |
| Management and security | XClarity Controller with upgrades | XClarity Controller with upgrades | Common management tools with prior generation |
| Full XClarity software suite including XClarity Administrator | Full XClarity software suite including XClarity Administrator | External Diagnostics Handset with LCD panel offers quick access to system status, firmware, network, and health information |
| Optional lockable front bezel | Optional lockable front bezel | Platform Firmware Resiliency is an advanced security solution with a silicon-based to guard against corruption and unauthorized firmware updates |
| | Optional intrusion switch | |
| | Support for External Diagnostics Handset | |
| | Platform Firmware Resiliency (PFR) hardware Root of Trust | |
| Power supplies | 2x Hot-swap PSUs up to 1100W, Platinum | 2x Hot-swap PSUs up to 1800W, Platinum | Expanded power supply portfolio for exact configuration required and sharing with rest of the 2-socket/4-socket ThinkSystem V2 servers |
| 750W Hot-swap Titanium PSU | 750W Hot-swap Titanium PSU |
| -48V DC power for Telco | -48V DC power for Telco |
| 240V HVDC support in China | 240V HVDC support in China |
