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DDR4 SDRAM (Double Data Rate 4 Synchronous Dynamic Random Access Memory) is a type of memory IC used in various electronic devices to provide high-speed data access and storage. It is built using advanced semiconductor technology, allowing for faster data transfer rates compared to its predecessors. DDR4 operates at a lower voltage, which contributes to improved energy efficiency and performance.
| Data Rate | Up to 3200 MT/s |
| Voltage | 1.2V |
| Capacity | From 4GB to 64GB per module |
| Form Factor | DIMM and SO-DIMM |
| Pin Count | 288 pins for DIMM, 260 pins for SO-DIMM |
| Latency | Typically CL15 to CL19 |
When selecting DDR4 SDRAM, consider the required capacity and data rate for your application. It's important to specify the form factor (DIMM or SO-DIMM) based on the device type. Additionally, check for compatibility with the motherboard and existing memory modules. Buyers should also inquire about latency specifications and whether the memory modules are ECC (Error-Correcting Code) or non-ECC, depending on the reliability needs of the system.
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DDR4 offers higher data rates and lower voltage compared to DDR3.
Mixing brands is possible, but ensure they have the same specifications for best performance.
CL stands for CAS Latency, indicating the delay time between the memory controller and the memory.
No, DDR4 and DDR3 are not compatible due to different physical layouts and electrical specifications.
The maximum capacity depends on the motherboard, but typically ranges from 64GB to 128GB.
Heat spreaders can help with cooling, especially in high-performance systems, but are not always necessary.