# eDRAM

> dynamic random-access memory included in a processor chip or package

**Wikidata**: [Q286144](https://www.wikidata.org/wiki/Q286144)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/EDRAM)  
**Source**: https://4ort.xyz/entity/edram

## Summary
eDRAM is dynamic random-access memory (DRAM) integrated directly into a processor chip or package, allowing for faster data access by reducing latency compared to external DRAM. It is a type of embedded memory used in high-performance computing applications, particularly in CPUs and integrated circuits.

## Key Facts
- **Type of memory**: A subclass of dynamic random-access memory (DRAM) that stores each bit in a separate capacitor within an integrated circuit.
- **Common use**: Primarily used as L4 cache in modern central processing units (CPUs) to improve performance.
- **Aliases**: Also known as embedded DRAM, embedded dynamic random-access memory, and other language-specific terms like 混載DRAM or イーディーラム.
- **Part of**: Integrated circuits, central processing units, and multi-chip modules.
- **Distinct from**: eSRAM, which is a different type of embedded memory.
- **Wikipedia presence**: Available in multiple languages, including English, Japanese, and Russian.
- **Wikidata identifier**: /m/07_3nl, referenced in a 2013 publication.

## FAQs
### Q: What is the main advantage of eDRAM over traditional DRAM?
A: eDRAM is integrated directly into a processor chip, reducing latency and improving performance by eliminating the need for external memory access.

### Q: Where is eDRAM commonly used?
A: eDRAM is often used as L4 cache in modern CPUs and is part of multi-chip modules and integrated circuits.

### Q: How does eDRAM differ from eSRAM?
A: eDRAM is a type of dynamic RAM, while eSRAM is a different type of embedded memory that does not rely on capacitors for data storage.

### Q: What are some alternative names for eDRAM?
A: eDRAM is also referred to as embedded DRAM, embedded dynamic random-access memory, and other language-specific terms like 混載DRAM or イーディーラム.

### Q: Is eDRAM available in multiple languages on Wikipedia?
A: Yes, the Wikipedia page for eDRAM is available in languages such as Arabic, German, Japanese, and Russian.

## Why It Matters
eDRAM plays a crucial role in high-performance computing by reducing memory access latency, which is critical for tasks requiring fast data retrieval. By integrating DRAM directly into the processor chip, eDRAM enhances the efficiency of CPUs and other integrated circuits, making it a key component in modern computing systems. Its use in L4 cache and multi-chip modules demonstrates its importance in optimizing memory performance in high-demand applications.

## Notable For
- **Integration**: Being embedded within processor chips, eDRAM eliminates the need for external memory access, significantly reducing latency.
- **Performance**: Used as L4 cache in CPUs, it helps improve overall system performance by providing faster data access.
- **Aliases**: Recognized by multiple names across different languages, reflecting its widespread adoption.
- **Distinction**: Clearly differentiated from eSRAM, another type of embedded memory, by its reliance on capacitors for data storage.
- **Wikidata recognition**: Included in Wikidata with a specific identifier, indicating its formal recognition in knowledge databases.

## Body
### Definition and Classification
eDRAM is a type of dynamic random-access memory (DRAM) that is integrated into a processor chip or package. It is a subclass of DRAM, storing each bit of data in a separate capacitor within an integrated circuit. Unlike traditional DRAM, eDRAM is embedded within the processor, reducing memory access latency.

### Common Uses
eDRAM is primarily used as L4 cache in modern central processing units (CPUs). It is also part of multi-chip modules and integrated circuits, where its embedded nature allows for faster data access compared to external DRAM.

### Aliases and Recognition
eDRAM is known by various aliases, including embedded DRAM, embedded dynamic random-access memory, and language-specific terms like 混載DRAM or イーディーラム. It is recognized in knowledge databases such as Wikidata, where it is identified by the identifier /m/07_3nl.

### Distinction from Other Technologies
eDRAM is distinct from eSRAM, which is another type of embedded memory that does not rely on capacitors for data storage. This difference in technology makes eDRAM suitable for applications requiring dynamic data storage.

### Wikipedia and Language Availability
The Wikipedia page for eDRAM is available in multiple languages, including Arabic, German, Japanese, and Russian, indicating its global relevance and recognition. The page is titled "EDRAM" in English and follows a consistent naming convention across languages.

### Wikidata and Knowledge Databases
eDRAM is included in Wikidata, where it is described as dynamic random-access memory included in a processor chip or package. The entry includes references to its classification and usage, contributing to its formal recognition in knowledge databases.

## References

1. Freebase Data Dumps. 2013