Lenovo · ThinkSystem
ThinkSystem SR650a V4
2-socket 2U rack server that maximizes GPU compute power while retaining a traditional 2U form factor (SR650i V4 is its inference-tuned configuration).
| OEM | Lenovo |
|---|---|
| Family | ThinkSystem |
| Generation | V4 |
| Released | 2025 |
| Form factor | Rack 2U |
| Processor sockets | 2 |
| Processor | Intel Xeon 6 (6700P/6500P) |
| Max cores per CPU | 86 |
| Max cores per server | 172 |
| Max CPU TDP | 350 W |
| DIMM slots | 32 |
| Memory type | DDR5, up to 8000 MT/s |
| Max memory | 8 TB |
| Drive bays | Up to 8x 2.5-inch (SAS/SATA/NVMe) or 8x E3.S NVMe front hot-swap bays, plus M.2 |
| Max NVMe / 3.5" bays | 8 / 0 |
| GPUs | Up to 4x double-wide or 8x single-wide front-mounted GPUs; SR650i V4 inference model ships with NVIDIA RTX PRO 6000 Blackwell |
| PCIe slots | 14 (PCIe Gen5) |
| OCP 3.0 slots | 2 |
| Power supplies | up to 3,200 W, redundant |
| Management | XClarity Controller 3 (XCC3) |
| Suited to | AI inference, AI training, VDI, HPC, Analytics / big data |
Official sources:
https://lenovopress.lenovo.com/lp2128-thinksystem-sr650a-v4-server ↗
Spec sheet: https://lenovopress.lenovo.com/datasheet/ds0195-lenovo-thinksystem-sr650a-v4 ↗