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This Memory Stick with over 150 DRAM ICs is Unreal and probably the Biggest Ever Made In a recent video, popular tech YouTuber der8auer delves into the fascinating world of high-capacity memory sticks, focusing particularly on one that boasts over 150 DRAM ICs. This intriguing piece of server hardware offers insights into the evolution and variety of memory technologies available to high-end users and enthusiasts alike.
Key Highlights from the Video
The video opens with a brief comparison between standard DDR3, DDR4, and specialized DIMMs used in IBM's Power series CPUs. der8auer showcases a DDR3 module from an IBM Power 5 CPU and highlights the physical differences in size and capacity between conventional memory sticks and custom-made variants. One standout example is an IBM Power 8 memory module, which features a whopping 152 ICs, showcasing the extremes of memory design. The biggest takeaways include:- Capacity and Design: The module presented in the video has a total of 32GB per DIMM, thanks to its extensive number of ICs. Standard DDR3 sticks typically max out at 16GB, making this custom memory a remarkable achievement.
- Power Consumption: der8auer speculates about the power consumption, noting that a single stick could potentially draw between 50 to 80 watts, raising concerns about thermal management in a server environment.
- Centaur Chip: A unique aspect of the IBM memory module is the inclusion of a Centaur chip that functions as both memory buffer and level 4 cache. This innovation not only extends the memory capabilities but allows for an overall boost in server upgradability.
- Non-Volatile Memory Technology: The video also introduces NVDIMM, a technology that ensures data remains intact even during power losses. This is particularly beneficial for servers that require rapid recovery after outages.
- Comparative Analysis: der8auer highlights the differences between conventional DRAM ICs and newer technologies like Intel's 3D XPoint (PMEM). While PMEM offers distinct advantages in speed and cost efficiency, its compatibility is limited to specific hardware setups.