lenovo Thinkssytem SD665 N V3 Super computing SR665 v3 Rack server for Lenovo 1x or 2x 4th AMD EPYC 96 Cores / 400W 24x 128GB TruDDR5
Here’s a detailed comparison table between the Lenovo ThinkSystem SD665-N V3 (Supercomputing Server) and ThinkSystem SR665 V3 (Rack Server):
Lenovo ThinkSystem SD665-N V3 vs. SR665 V3 – Comparison Table
| Feature | ThinkSystem SD665-N V3Â (Supercomputing) | ThinkSystem SR665 V3Â (Rack Server) |
|---|---|---|
| Form Factor | 4U (Multi-Node, 2 Nodes per Chassis) | 2U (Single Node) |
| Processor | 4th Gen AMD EPYC 9004 Series (up to 128 cores per node) | 4th Gen AMD EPYC 9004 Series (up to 128 cores) |
| Max Sockets per Node | 1P (Single Socket per Node) | 2P (Dual Socket) |
| Max Cores per System | 256 Cores (2 nodes × 128 cores) | 256 Cores (2 sockets × 128 cores) |
| Memory Capacity | Up to 6TB DDR5 per Node (12TB total) | Up to 6TB DDR5 (24 DIMM slots) |
| Memory Bandwidth | 12-Channel DDR5-4800Â per node | 12-Channel DDR5-4800 |
| Storage Bays | 8 x 2.5″ NVMe/SAS per Node (16 total) | Up to 24 x 2.5″ or 12 x 3.5″ (SAS/NVMe) |
| PCIe Expansion | 3 x PCIe 5.0 Slots per Node (6 total) | 8 x PCIe 5.0 Slots |
| GPU Support | Up to 6 GPUs (3 per node, e.g., NVIDIA H100) | Up to 4 GPUs (e.g., NVIDIA A100) |
| Networking | 200Gb/s NVIDIA Quantum-2 InfiniBand (per node) | OCP 3.0 100GbE or 200Gb InfiniBand |
| Cooling | Direct Liquid Cooling (DLC) Support | Air Cooling (Optional DLC) |
| Power Supply | 2000W Titanium (N+N Redundant) | 2000W Platinum/Titanium |
| Use Case | HPC, AI/ML, Supercomputing Clusters | Virtualization, Databases, AI/ML |
| Key Advantage | Density-Optimized for GPU/CPU Scalability | Balanced Compute-Storage Expansion |
Lenovo ThinkSystem SD665-N V3 Supercomputing Server
The ThinkSystem SD665-N V3 is a high-density, 4U multi-node supercomputing server designed for extreme-scale HPC, AI training, and GPU-accelerated workloads. Each chassis houses two independent server nodes, with each node powered by a 4th Gen AMD EPYC 9004 processor (up to 128 cores) and 6TB DDR5 memory (12TB total per chassis). Optimized for liquid-cooled data centers, it supports up to 6 GPUs (3 per node, including NVIDIA H100/A100) and features NVIDIA Quantum-2 InfiniBand (200Gb/s) for ultra-low-latency interconnects. With 8 x 2.5″ NVMe bays per node (16 total), it delivers massive parallel storage throughput for AI/ML datasets. The SD665-N V3 excels in supercomputing clusters, large-scale simulations, and generative AI, offering unmatched compute density per rack unit.
Key Features:
- 4U multi-node chassis (2 nodes)
- 4th Gen AMD EPYC 9004 (128 cores/node, 256 cores/chassis)
- Up to 12TB DDR5 (6TB/node @ 4800MHz)
- 6 x PCIe 5.0 slots (3/node) for GPUs/accelerators
- 16 x 2.5″ NVMe bays (8/node, 1.6M random IOPS)
- NVIDIA Quantum-2 InfiniBand (200Gb/s per node)
- Direct Liquid Cooling (DLC) support
- Ideal for: Exascale HPC, AI training, CFD, climate modeling
Lenovo ThinkSystem SR665 V3 Rack Server
The ThinkSystem SR665 V3 is a versatile 2U dual-socket rack server built for enterprise virtualization, databases, and mixed AI workloads. Featuring dual 4th Gen AMD EPYC 9004 CPUs (up to 256 cores total) and 6TB DDR5 memory, it balances compute power, storage flexibility (24 x 2.5″ or 12 x 3.5″ bays), and PCIe 5.0 expansion (8 slots). It supports up to 4 GPUs (e.g., NVIDIA A100/L40S) and offers 100GbE or InfiniBand networking (OCP 3.0). Unlike the SD665-N V3, the SR665 V3 prioritizes general-purpose workloads with air cooling (optional DLC), making it ideal for private clouds, SAP HANA, and software-defined storage.
Key Features:
- 2U single-node design
- Dual 4th Gen AMD EPYC 9004 (256 cores total)
- Up to 6TB DDR5 (24 DIMMs @ 4800MHz)
- 8 x PCIe 5.0 slots (supports 4 GPUs)
- 24 x 2.5″ or 12 x 3.5″ bays (NVMe/SAS/SATA)
- OCP 3.0 (100GbE/200Gb InfiniBand)
- Air-cooled (DLC optional)
- Ideal for: Cloud-native apps, SQL/NoSQL databases, mid-range AI
Comparison Summary
| Aspect | SD665-N V3 | SR665 V3 |
|---|---|---|
| Design Goal | Supercomputing density | Enterprise rack versatility |
| Node Density | 2 nodes/4U (256 cores total) | 1 node/2U (256 cores) |
| GPU Support | 6 GPUs (3/node, liquid-cooled) | 4 GPUs (air/DLC) |
| Storage | 16 x NVMe (8/node) | 24 x 2.5″ or 12 x 3.5″ (hybrid) |
| Networking | NVIDIA InfiniBand (standard) | OCP 3.0 (Ethernet/InfiniBand optional) |
| Cooling | Liquid-cooled (DLC standard) | Air-cooled (DLC optional) |
Choose SD665-N V3 if: You need maximum GPU/core density for HPC/AI clusters.
Choose SR665 V3 if: You need storage flexibility for enterprise or hybrid cloud workloads.
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