Today at the RSA Conference, Intel has announced Heracles, their revolutionary hardware accelerator specially developed for Fully Homomorphic Encryption (FHE). This thrilling declaration made at this week’s IEEE International Solid-State Circuits Conference (ISSCC) in San Francisco. This major innovation will transform the future of encrypted computing. It significantly shortens the time required for sophisticated calculations and certainly does those calculations more securely. Heracles represents a stunning 5,000 times increase in computing speed compared to conventional Intel server CPUs. This innovation marks a giant leap forward for data privacy and secure cloud-enabled applications.
Heracles features 64 compute cores laid out in a high-performance eight-by-eight array, to provide extreme levels of parallel compute performance. The accelerator uses advanced 3-nanometer FinFET technology, combined with high-bandwidth memory, to perform FHE computing operations at lightning speed. The design addresses the increasing demand for high assurance and secure data processing. Most importantly, it centers on applications, and specifically within cloud and artificial intelligence (AI) contexts.
The importance of Heracles is more than just numbers on a performance sheet. Intel is committed to delivering scalable solutions and this innovation has been a clear testament to that commitment. It’s notable as the first hardware to make Fully Homomorphic Encryption (FHE) really work well at scale. Organizations are increasingly relying on encrypted data for their most sensitive operations. Heracles is ready to meet these demands with greater speed and efficiency.
Specifications and Performance Enhancements
Heracles is sufficiently speedy to run at an effective frequency of 1.2 gigahertz. It features an impressive on-chip 2D mesh network to connect those cores with giant 512-byte buses. It boasts a massive 64 megabytes of mega-buffed cache memory giving it the ability to quickly read and write data on the fly. Specifically, Heracles is able to execute FHE’s key mathematical transformations in an average of 39 microseconds – a remarkable result that demonstrates Heracles’ efficiency.
Recent tests demonstrated Heracles’ capacity to certify 100 million voter ballots in an impressive 23 minutes. By comparison, the same workload would take conventional CPUs an unbelievable 17 days to execute. This extraordinary success story showcases what is possible when FHE applications are leveraged toward electoral integrity and other industries that need reliable, secure verification methods.
“We have proven and delivered everything that we promised.” – Ro Cammarota
>Heracles uses three parallel streams of instructions at the same time to maximize its efficiency. Another stream manages memory transfers to and from the processor. The second stream is for internal data transport. The third stream is for performing mathematics. This complex combination allows us to eliminate bottlenecks and maximize throughput.
Implications for Future Technology
The introduction of Heracles signals a shift towards hardware solutions capable of supporting advanced machine-learning operations, including neural networks and large language models (LLMs). As the demand for more advanced machine-learning capabilities continues to expand, so does the need for specialized FHE hardware.
Kurt Rohloff, an expert in the field, emphasizes the importance of scaling these technologies:
“When Intel starts talking about scale, that usually carries quite a bit of weight.”
He further elaborated on the necessity of such advancements for emerging applications:
“Where you start to need hardware is emerging applications around deeper machine-learning oriented operations like neural net, LLMs, or semantic search.”
John Barrus added that smaller models can benefit from accelerated hardware despite FHE’s inherent data expansion:
“There are a lot of smaller models that, even with FHE’s data expansion, will run just fine on accelerated hardware.”
The Future of Encrypted Computing
Heracles is more than an incremental improvement. Such a change opens the door to unprecedented ways we can now perform encrypted computations at scale. As for what’s next, industry experts agree that this innovation will pave the way for future breakthroughs in secure computing.
As organizations strive to balance data movement with computational efficiency, Heracles sets a new standard for what is achievable with FHE technology. The accelerator’s design, particularly a focus on practical applications inside real-world cloud architectures and AI ecosystems, reflects this.
“This is like the first microprocessor… the start of a whole journey.”
As organizations strive to balance data movement with computational efficiency, Heracles sets a new standard for what is achievable with FHE technology. The accelerator’s design aims to facilitate practical applications within real-world cloud infrastructures and AI systems.
Niobium described Heracles as:
“The world’s first commercially viable FHE accelerator, designed to enable encrypted computations at speeds practical for real-world cloud and AI infrastructure.”

