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New Technological Landscapes [deeznutz1]
As we know, a huge part of the world’s economy and our everyday lives relies on microchips, and since 2024 a new crisis has begun to emerge regarding RAM (Random Access Memory)—a supply chain disruption affecting one of the core components of our computers, phones, game consoles, the web, and, most critically, servers and AI systems. But unlike the cyclical shortages of the past, the current global memory shortage represents an irreversible shift in the technological landscape driven by the explosion of AI.
The problem with AI is its massive and insatiable need for this type of memory in order to function. The race to train and deploy these new, advanced AI models has changed the intended purpose of these RAM memory chips, transforming semiconductor memory from an affordable consumer product into a critical geopolitical chokepoint. The core technology that has reshaped the market to meet AI’s massive demands is High-Bandwidth Memory (HBM), a new specialized technology that has become so important that it is now a matter of national interest—particularly for South Korea (the leading producer of HBM memory)—and is reshaping the U.S.-China tech war. However, before assessing the geopolitical implications, we must understand the technological basis of this crisis.
At the heart of this shortage lies a key limitation of modern computing that we might call the “memory wall.” While the processors (CPUs) used to train and run AI models have become exponentially faster, the problem lies in the data that needs to be transferred to those chips. The key lies in RAM, specifically in a technology called DRAM (which is the standard for most consumer products but is not fast enough for large servers or AI models). To overcome this lack of speed, the industry shifted from standard DRAM to HBM, a new method of manufacturing memory that stacks chips vertically (rather than horizontally like DRAM), connecting them with microscopic tunnels called through-silicon vias (TSVs). This 3D architecture enables massive, lightning-fast data transfers (80 times faster). This upgrade meets the needs of AI servers, which require enormous amounts of this memory to function. To illustrate the massive RAM requirements for AI—and although the figures are not official—it is estimated that Netflix uses between a few kilobytes and a few megabytes per user, while ChatGPT, for example, requires a minimum of between 100 and 200 gigabytes of VRAM (a specific type of RAM typically used for video processing) per user just to function, which makes the demand for these chips astronomically greater.
Concentrated production
However, producing this HBM RAM is not easy, and it creates an imbalance due to the difficulty and resource intensity of its manufacturing. Building these chips is extraordinarily complex and costly. A single gigabyte of HBM requires three times more silicon wafer capacity than standard memory. Because “hyperscaler” tech companies (Google, Apple, Microsoft, OpenAI) are spending billions to build AI data centers, memory manufacturers (SK Hynix, Samsung, and Micron) have shifted their production lines away from conventional DRAM to focus on HBM. This “cannibalization” of production has triggered a massive supply shortage across the tech industry, driving up the cost of consumer electronics, automotive components, and standard enterprise hardware worldwide.
Another issue regarding HBM RAM production is that its manufacturing is restricted to what we might call an oligopoly. Only three companies worldwide control roughly 95% of the global RAM market: Micron from the U.S. and SK Hynix and Samsung from South Korea. Within this trio, South Korea completely dominates RAM production—and HBM production in particular—with SK Hynix and Samsung leading the way, each holding about 35% of the market share. Because the foundational hardware of the AI revolution relies on just a handful of factories, the physical production of AI has created a highly vulnerable geographical bottleneck.
This concentration of RAM manufacturing in just a few factories closely links memory chip manufacturers in South Korea to microchip factories in Taiwan. This connection is a co-dependent relationship. Taiwan, primarily through the Taiwan Semiconductor Manufacturing Company (TSMC), has a monopoly on manufacturing the advanced logic chips (the “brains”) designed by companies like Nvidia or AMD. However, these processors are completely useless without South Korean memory. The GPUs manufactured in Taiwan are the engine, but High-Bandwidth Memory (HBM) is the fuel they need to run, providing the massive data transfer speeds required for AI to function. No country can fully benefit from the AI boom without the other’s specialized technology, making the global tech sector and economy dangerously dependent on this East Asian corridor.
Compounding this fragile manufacturing situation, the reliance on Taiwan and South Korea places the future of global technology in the midst of a highly volatile, conflict-ridden, and militarized region. Beyond the direct threat of a military conflict in the Taiwan Strait or on the Korean Peninsula, other geopolitical issues could also bring this delicate system to a standstill. For example, manufacturing semiconductors requires massive amounts of energy. Because Taiwan imports 97% of its power needs and relies heavily on liquefied natural gas (LNG) from the Middle East, a disruption—such as the current blockade in the Strait of Hormuz—could be disastrous. Taiwan has only about 11 days’ worth of LNG [1]reserves, meaning that any energy disruption could paralyze global chip production within weeks.
The U.S.-China Tech War
The reality that chip production relies entirely on the stability of these two countries has forced world powers to rethink their strategies and seek new ways to become the new leaders in this tech race. But this brings us to the U.S.-China tech war: China wants a piece of this pie and aims to become a major new manufacturer of microchips and memory, but the rules for market access are increasingly being dictated by the United States, which is focusing on strategies to contain China’s rise. Through strict export controls and international bans on the purchase of the highly specialized machinery needed to manufacture these chips (produced exclusively by the Dutch company ASML), Washington is actively restricting China’s access to this market to protect its own interests and companies.
In fact, the U.S. is currently the world leader in semiconductor design and equipment, but it is held back by East Asia’s monopoly on manufacturing. Washington’s strategy to address this lack of manufacturing capacity is to invest billions in the creation of state-of-the-art factories designed to produce key semiconductors. The main examples of this are the two new factories that Micron is building in Idaho and New York, as well as those being built in Texas and Arizona by Samsung and TSMC, which are financed through the CHIPS Act. [2]
The CHIPS and Science Act is the United States’ main “offensive” to take the lead in this race, and it provides $52.7 billion in direct funding to incentivize companies to build manufacturing plants in the United States. Through these investments, the United States aims to capture 30% of the world’s semiconductor production by 2032.
The other key factor is the diplomatic alliances (“Pax Silica”) through which the U.S. is aligning itself with key partners such as Japan, South Korea, and the Netherlands. By coordinating with these nations—for example, by working with the Netherlands to restrict the export of ASML’s advanced chipmaking machines to China—the U.S. aims to secure the technological frontier and ensure that critical hardware remains under Western influence.
But as expected, China is not sitting idly by; it is pushing for self-sufficiency and innovation despite being cut off from advanced Western technology. China’s leading memory manufacturer, CXMT (ChangXin Memory Technologies), is spearheading this effort. Despite lacking access to advanced lithography machines—which are restricted by Western sanctions—CXMT has managed to manufacture DDR5 RAM and is dedicating 20% of its capacity to producing HBM3 memory. China achieves this by pushing older equipment to its limits using extraordinarily complex and costly multi-patterning techniques. It has also shown surprising resilience in the production of logic chips (CPU processors). For example, Semiconductor Manufacturing International Corp (SMIC) successfully produced an advanced 7nm processor, and the Chinese government is encouraging state-owned enterprises to purchase these domestically produced chips to ensure that local chip manufacturers have the revenue needed to survive and grow.
And more importantly, China also has the ability to retaliate against U.S. and Western sanctions, as it controls many of the raw materials needed to fuel the early stages of the memory and semiconductor supply chain. No matter how advanced Western technology becomes, it requires specific minerals to function, and China has a near-monopoly on the extraction and refining of these essential minerals and rare earths, such as gallium, germanium, and lithium.
China has already demonstrated its willingness to use this power. In retaliation for U.S. technology embargoes, Beijing imposed strict export controls on critical technology minerals, including gallium, germanium, and rare earth elements.
This creates a systemic vulnerability for the West. While the U.S. and Europe are pouring billions into building new fabrication plants through their respective CHIPS Acts, they cannot easily replicate China's massive, state-subsidized mineral refining infrastructure. As a result, China has the power to inflict severe supply chain disruptions on the global semiconductor industry simply by restricting the export of the soil and minerals needed to build the hardware.
No-clean decoupling
In conclusion, “RAMaggedon” is not just a technological disruption, but a clear example of how the AI revolution is reshaping international geopolitics. What was once a relatively cheap and abundant component has become a strategic asset, concentrated in a handful of companies and factories located in one of the most unstable and militarized regions in the world. As AI continues to expand, access to memory chips may become as important as access to energy resources or critical raw materials.
The current shortage also highlights a reality that both the United States and China are beginning to recognize: complete technological independence is nearly impossible. The United States may lead in chip design and advanced technology, while China dominates many of the minerals needed to manufacture them. At the same time, Taiwan and South Korea remain indispensable for producing the hardware that powers the global digital economy. Rather than a clean decoupling, the future of the semiconductor industry is likely to be defined by a complex relationship of competition, cooperation, and mutual dependence.
Ultimately, the RAM crisis demonstrates that the future of global power will not be determined solely by military strength or economic size, but also by who controls the critical technologies that make artificial intelligence possible. In this new technological race, silicon has become the new oil, and the factories that produce and refine it have become some of the most important strategic assets in the world.