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RDIMM vs LRDIMM Memory Comparison
dasher.com/server-memory-rdimm-vs-lrdimm-and-when-to-use-them/Yapay zekadan makale özeti
- Memory Types
- Intel introduced LRDIMM with E5-v2 CPUs, replacing UDIMM
- RDIMMs use registers for improved signal integrity
- LRDIMMs can have up to eight ranks per module
- Performance Factors
- RDIMMs typically have slightly higher latency than LRDIMMs
- Single-rank RDIMMs have higher latency than higher-capacity ones
- Faster DIMM speeds reduce loaded latency
- More ranks increase latency but improve parallelization
- Capacity and Usage
- LRDIMMs provide 4X more memory capacity than RDIMMs
- RDIMMs recommended for 32GB+ memory usage 90% of time
- Optimal performance requires one or two RDIMMs per channel
- Higher bus utilization increases system latency