How is LPDDR5X RAM on MediaTek Dimensity 9000 better than LPDDR5?

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The Dimensity 9000 is a new and supercharged flagship mobile chipset from MediaTek, which comes with several firsts in its segment. It is the first 4nm mobile chip to feature ARM’s new Cortex-X2 cores, and the first to use the new Mali G710 GPU. In addition, the Dimensity 9000 is also the first mobile system on a chip (SoC) to support LPDDR5x RAM.

First of all what is LPDDR5X RAM?

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LPDDR5X is the newest standard in RAM technology for mobile devices and was introduced only earlier this year. The standard is intended to improve data transfer over RAM chips used on mobile chipsets such as the Dimensity 9000 and its counterparts in the Samsung Exynos and Qualcomm Snapdragon families.

While we have yet to see how the new standard actually improves the application of RAM on mobile devices, we have some indications of the refinement of LPDDR5 by LPDDR5x. The following sections elaborate on how the two memory technologies compare.

LPDDR5X vs LPDDR5 RAM

An image of a MediaTek Dimension 9000 mobile processor.
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In July 2021, Semiconductor Trade Organization ZEC LPDDR5X was announced as an evolution of the then-latest generation of Dynamic Random Access Memory (DRAM) – ie LPDDR5. This evolutionary standard, LPDDR5X, is designed to increase data processing speed from 6400 megabits per second (Mbps) to 8533 Mbps, resulting in an increase of approximately 33% corresponding to 25% lower latency.

The older, LPDDR5 standard was first introduced in early 2020 with the Qualcomm Snapdragon 865. While early devices running the LPDDR5 standard could only run at speeds up to 5500Mbps, chipset vendors used the full capabilities of LPDDR5, pushing data transfer rates forward. 6400Mbps in later updates. At its launch, LPDDR5 was focused on improving power efficiency by about 20% compared to its predecessor standard, LPDDR4X.

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When announcing the LPDDR5X standard, JEDEC didn’t make any claims about efficiency improvements, so we can expect DRAM manufacturers to make their own improvements.

Vendors gear up for LPDDR5X demand

While the technology is in its early stages of adoption, two major DRAM vendors – Samsung Electronics and Micron Technology – have announced that they will be making LPDDR5X RAM for mobile chipsets. Here are the announcements from each semiconductor vendor:

Samsung Electronics

Earlier this month, Samsung Electronics announced that it would join the LPDRR5X train as it unveiled 16 gigabit (GB) of RAM developed on a 14 nm DRAM manufacturing process.

samsung announced that it would begin collaborating with semiconductor manufacturers to “establish a more viable framework for the expanding world of digital reality”. The company anticipates that increased use of hyperconnected applications of the technology, such as artificial intelligence (AI), augmented reality (AR), virtual reality (VR), and the metaverse, will drive rapid demand growth. Large scale data processing. According to Samsung, increasing demand for faster processing has led to the need for low-power and high-performance memory modules not only for smartphones, but also for AR and VR headsets, servers and even self-driving cars. Need should be promoted.

Samsung LPDDR5X DRAM

In line with JEDEC’s announcement, Samsung claims that its LPDDR5X solution will offer data processing rates of up to 8533Mbps. It also claims that the new LPDDR5X modules will consume 20% less power than the previous standard LPDDR5.

However, Samsung did not specify when the new LPDDR5X memory modules would be available for commercial applications. Notably, the Korean electronics giant announced its first LPDDR5 module in 2018, but the first smartphone featuring this technology didn’t appear until two years later, in 2020. It is yet to be seen whether we see the LPDDR5X memory module on Samsung’s own Exynos 2200 – the expected name – or Qualcomm’s Snapdragon 898 – which could have a much simpler name. We’ll know for sure only after there’s a final announcement from one of the chipmaker companies.

micron

American memory and flash storage manufacturer Micron Technologyannounced that it is the first company to have its LPDDR5X RAM validated for use with the Dimensity 9000 chipset by MediaTek. The company said that its new DRAM module is built on its advanced.1α (1-alpha) nodeIt also claimed that DRAM modules manufactured with 1-alpha technology have the lowest power consumption among mobile DRAM.

When sampled for the Dimension 9000, Micron’s LPDDR5X solution achieved data transfer speeds of up to 7500Mbps. Although this exceeds LPDDR5’s 6400Mbps transfer speed, it still lags behind the highest transfer rates (8533Mbps) supported by the new standard. Based on these results, MediaTek concluded that LPDDR5X modules lead to 17% faster transfer speeds and 15% lower latency compared to the previous generation.

Mediatek_ Dimension 9000 LPDDR5X RAM

MediaTek commented that the new RAM technology would allow for higher levels of data processing than are required for the complex and heterogeneous processing units built into modern-day chipsets. These higher processing capabilities will be critical to the high-data requirements of the 5G era.

Although MediaTek’s Dimensity 9000 already supports LPDDR5X RAM, the memory controllers are backwards compatible and can use older, LPDDR5 memory modules. The use of the new DRAM technology will largely depend on the adoption of LPDDR5X RAM on flagships, smartphones and other smart devices in 2022.

In the end, the performance difference between Samsung’s and Micron’s LPDDR5X solutions can only be tested if we compare the Dimensity 9000 to the Snapdragon 888 or newer chips with the latest RAM technology.




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