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  Date: 05/01/2024

Andes Announces General Availability of the New RISC-V Out-Of-Order Superscalar Multicore Processor, the AndesCore AX65

Andes Technology announces general availability of the high-performance AndesCore AX65 out-of-order superscalar multicore processor IP. The AX65 is the first of the high-performance out-of-order AX60 series. Equipped with 13-stage pipeline, 4-wide decode, 8-wide out-of-order execution, AX65 targets the Linux application processor sockets of computing, networking, and high-end controllers. It also received “Best IP/Processor of the Year” Award from EE Times Asia last December.


Andes has been very successful on the embedded controllers and high-performance AI vector processors. As RISC-V ecosystem for Linux is getting matured, the demand for high-performance RISC-V processors for general-purpose applications rises. Andes takes this opportunity to introduce the AX65 to complete its comprehensive CPU lineup, spanning from low-power embedded solutions to high-end Out-of-Order processors. Customers who develop complex SoC can now use AX65 as the primary Linux application processor, the AX45MPV/NX27V for the vector/DSP processing and the N25/N225 processors as the resource and power manager. Leveraging the entire range of CPUs in the AndesCore families enables customers to streamline their development process, benefit from integrated support, and significantly reduce development cost.

The AX65 operates at speeds exceeding 2.0GHz on a 12nm process, boasting a SpecInt2006 score of 8.25 per GHz — outperforming the Cortex A75 with an efficient memory hierarchy. It also supports up to 8-core cache coherence with maximum 8MB shared cache. The AX65 is fully compliant with the RISC-V RVA22 profile, ensuring compatibility with operating systems and software within the RISC-V ecosystem. On the security side, AX65 supports Enhanced PMP (ePMP) for further securing memory accesses, and K (scalar cryptography) extension for accelerating AES and SHA crypto operations. For running Linux OS, the AX65 supports VIPT L1 instruction cache, SV48 virtual address space, and 2-level TLB with simultaneous hardware page walkers. It also incorporates state-of-the-art branch prediction mechanism with TAGE-L algorithm, return address stack and 2-level branch target buffer. The AX65 can be used as an application processor in networking applications like Wi-Fi, 5Gnr, and O-RAN, as well as in edge computing and industrial PCs. Furthermore, it is well-suited for serving as the primary controller processor in embedded applications.

“AX65 is our first out-of-order processor. It brings over 100% performance boost on SPECint2006 over the popular 45 Series processors. The successful launch of AX65 marks a quantum leap in performance of our processor lineup. With this proven OoO architecture, we can now target additional high-performance opportunities such as the main processors in AI/ML, Multimedia, Networking and Storage. That is very exciting for Andes,” said Dr. Charlie Su, President and CTO of Andes Technology.

“Among the RISC-V IP vendors, Andes delivered the first DSP-capable processor in D25F, the first vector processor in NX27V as well as the first functional safety processor with full ISO 26262 compliance in N25F-SE, and now they are all very successful in the market. Even though we are not the first for the out-of-order processor, we released it with a solid pace so that we do not need to reshuffle our teams along the way. Customers can trust Andes as a long-term supplier and partner for all their RISC-V CPU needs,” said Frankwell Lin, Chairman and CEO of Andes Technology.

Early customers in Asia, Europe and USA have been evaluating AX65 since August. Customers in multimedia and AI/ML have already signed up. The AX65 with Linux and RTOS support as well as development tools is available immediately for general licensing.

Source: Andes

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