Seoul-based company FuriosaAI announced on Wednesday that it has raised a Series D funding round of $620 million. The company aims to challenge NVIDIA and solve the bottleneck in data center energy consumption.
Thanks to this round, FuriosaAI's valuation reached $2.9 billion, approximately four times its previous valuation of $735 million. Notably, FuriosaAI reportedly turned down an offer from Meta for $800 million in 2025.
The South Korean National Growth Fund contributed the largest share with $280 million, which is part of the government's strategy to develop the domestic semiconductor industry. International investors added another $110 million, with the American company Infinitum being the largest among them and reportedly leading the round. Cisco Investments, QUDA Capital, NeoFort Holding, Jericho Capital, and Worldline Capital also participated.
Existing shareholders invested $125 million, including NAVER, Korea Development Bank, DSC Investment, and Kakao Investment. The Export-Import Bank of Korea made its first direct investment contribution to the startup. This Series D round is the largest ever raised by a South Korean semiconductor company.
FuriosaAI specializes not in AI training chips, but in inference chips. As more companies adopt AI, demand is shifting specifically to this area. The company's flagship chip, RNGD (often pronounced as Renegade), is built on the Tensor Contraction Processor architecture.
This processor reduces the energy consumption associated with data movement performed by Graphics Processing Units (GPUs). FuriosaAI claims that its 180-watt air-cooled RNGD card provides throughput comparable to a GPU that consumes twice or even more energy. In tests with LG's EXAONE models, RNGD demonstrated 2.25 times higher performance per watt than the GPU-based system it was compared against.
The transition to using this chip should also be straightforward, as it supports PyTorch and Hugging Face models and serves as a replacement for vLLM. RNGD entered mass production in January at TSMC. LG uses its EXAONE models on RNGD, while Upstage employs it to provide live search summaries for millions of users. Furthermore, Samsung SDS launched a cloud service based on this chip in July.
According to Young Joong Park from NAVER Ventures, the company has passed the 'technology proof' stage and moved to 'business proof.' Thanks to early success, FuriosaAI plans to scale up with new capital. The company intends to produce 20,000 RNGD chips this year and over 40,000 in 2027. A third-generation chip is also under development in collaboration with Broadcom.
Although NVIDIA still dominates the AI chip market, power supply remains a limitation. Networks and cooling systems are strained by the growing appetite of AI. This changes the calculations for data center operators: if a chip allows serving more users at the same power level, there is no need to build a new power plant. This also has geopolitical significance, as South Korea seeks to have its own champion in AI chips, and the government actively supports this initiative.
Nevertheless, challenging NVIDIA's position is an extremely difficult task. Real tests will lie in product execution and adoption. Reports indicate that FuriosaAI is considering an IPO as early as 2027, after which it will become clear whether this 'rebel' is a true market player.



