CAMM is a new memory standard that makes conventional DRAM modules smaller, more compact and enables higher capacities. The second generation LPCAMM2 has already been introduced for notebooks and thin/light PC designs. The LP in CAMM standard stands for low energy consumption, based on the LPDDR5 or LPDDR5X standards with speeds of up to 9.6 Gbps.
During CES 2024, ITSublssub visited the SK hynix booth where a company representative explained that the new CAMM standard will also be available for desktop PCs. It was announced that the first implementation for desktop platforms is already underway, although no specific details were given. Now it looks like this is indeed the case, as noted by insider HXL (@9550pro). The recent JEDEC press release announcing the release of the CAMM2 memory standard also mentions that CAMM2 will have a common connector design for both DDR5 and the energy efficient LPDDR5/X memory modules. JEDEC lists both notebooks and mainstream desktop PCs as the platforms for which the CAMM standard is intended.
DDR5 and LPDDR5/5X CAMM2s cater to distinct use cases. DDR5 CAMM2s are intended for performance notebooks and mainstream desktops, while LPDDR5/5X CAMM2s target a broader range of notebooks and certain server market segments.
While JESD318 CAMM2 defines a common connector design for both DDR5 and LPDDR5/X, it is crucial to note that the pinouts for each differ. To support different motherboard designs, intentional variations in mounting procedures between DDR5 and LPDDR5/X CAMM2s prevent the mounting of a module where it should not go.
The introduction of CAMM memory modules with DDR5 and future DRAM will mean a massive change in the design of motherboards. Current mainstream motherboards have 2 or 4 DIMM slots that can hold up to 256GB with the latest 64GB modules. To support CAMM, the entire PC motherboard ecosystem will need to be redesigned, but this will not happen overnight.
Similar to the laptop space, we could see some designs utilizing LPCAMM, while most designs stick with the traditional SO-DIMM or soldered memory layout. It is possible that as CAMM becomes more mature, motherboard manufacturers will try to experiment with the new standard by releasing a few select CAMM motherboards and see how consumers respond. Similarly, memory manufacturers will also need to design new solutions based on CAMM modules.
Each CAMM module has a connector on the back that can be plugged into the socket, similar to a CPU. Functions such as high-speed memory overclocking, fine-tuning and support for OC profiles in the Intel XMP and AMD EXPO ecosystems also need to be revised. CAMM is certainly not expected in the desktop market in the near future, but when it does, it will certainly be a significant development for the memory industry.
Source: @harukaze5719
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