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AI BriefWire / Briefing
South Korean chip startup Xcena raised $135 million at a $570 million valuation. The company believes AI's biggest bottleneck is memory, not compute power. This funding will help Xcena develop memory-focused solutions to improve AI performance.
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South Korean chip startup XCENA is betting that AI's real bottleneck is not compute, but memory.
Every time you ask ChatGPT a question, your request triggers a data relay race. Information leaves memory, passes through a CPU for preprocessing, travels to a GPU for heavy computation, and then makes its way back — and that entire journey repeats for every single word the AI generates.
The bottleneck is structural — it means routing through some of the most expensive and power-intensive chips in the industry on every single request. That inefficiency is exactly what XCENA, a startup with offices in South Korea and the U.S., is trying to solve. The four-year-old startup has designed a chip that places compute capabilities much closer to DRAM — the fast, short-term memory chips that store data a processor is actively using — allowing routine data operations to be handled near memory, without the costly round trips between CPUs, GPUs, and memory.
If it works at scale, the implications for AI infrastructure costs could be significant, which largely explains investor enthusiasm around the company. Indeed, XCENA just raised $135 million in a Series B at a valuation of $570 million, bringing its total raised to $185 million.
XCENA CEO Jin Kim co-founded the startup in 2022 alongside CTO Dohun Kim and CPO Harry Juhyun Kim, all veterans of Samsung and SK Hynix, the memory giants that supply chips powering Nvidia’s GPUs. “CPUs and GPUs have both gotten smarter over the decades. Memory never did. XCENA wants to change that,” Jin Kim said in an interview with TechCrunch. “The recent rise in memory prices and related stocks points to a broader shift in AI infrastructure toward memory-centric architectures,” he added. (This month, the three companies that dominate the global memory chip market — Samsung, SK Hynix, and Micron — each crossed a trillion-dollar valuation for the first time.)
XCENA is betting its business on the thesis that “inference isn’t just a compute problem; it’s increasingly a memory scaling problem,” said Kim.
XCENA’s chip, the MX1, connects to the CPU through CXL (Compute Express Link) — essentially a dedicated express lane between the processor and memory — processing data before it ever needs to leave the memory module. It brings compute to the data, not the other way around. The company claims that what used to require 10 servers could potentially run on just one.