What CCIX Consortium does

CCIX Consortium, Inc. is a Delaware-incorporated nonprofit standards organization founded in 2016 by AMD, Arm, Huawei, IBM, Mellanox, Qualcomm, and Xilinx. The consortium develops and maintains the CCIX (Cache Coherent Interconnect for Accelerators) specification, an open, ISA-independent protocol that runs over PCIe physical infrastructure to enable processors of different architectures (x86, ARM, POWER) to coherently share data with accelerators such as GPUs, FPGAs, SmartNICs, and custom ASICs. CCIX extends cache coherency beyond the processor socket so that accelerators become first-class peers accessible via standard load/store semantics, eliminating the DMA-driver and interrupt-handling overhead of traditional PCIe attached devices. The specification has progressed through multiple revisions—1.0 (June 2018), 1.0a evaluation (August 2019), 1.1 with PCIe 5.0 support at 32GT/s (October 2019), and 2.0 with PCIe Gen6 support (October 2022).

The consortium monetizes via annual membership fees paid by organizations that join to access full specifications, participate in standards development, and use member-only resources, and via a limited evaluation license for non-members who download the specification for internal assessment. Free public resources include the Software Developer's Guide and white papers in English and Chinese. The operating model is membership-driven: a Board of Directors composed of representatives from promoter/member companies (AMD, Arm, Xilinx, Synopsys, Cadence, Huawei, Qualcomm, Mellanox/NVIDIA) governs the organization, with Xilinx's Gaurav Singh serving as Chairman and Mellanox's Gilad Shainer as President. Office operations are administered through VTM, Inc. in Beaverton, Oregon.

CCIX serves a horizontal cross-section of the semiconductor and server ecosystem: processor vendors (AMD, Ampere, Huawei's Kunpeng), accelerator and FPGA vendors (Xilinx, Alveo, Versal), IP providers (Synopsys, Cadence, Avery Design), interconnect (Mellanox/NVIDIA), manufacturing (TSMC), test and measurement (Keysight), storage (KIOXIA), and software (Red Hat). Target deployment use cases include machine learning acceleration, network processing, storage offload, in-memory database processing, 4G/5G wireless, video analytics, and NFV/SDN. Marketing and ecosystem development occur through industry events (SC, Arm TechCon, DAC, Flash Memory Summit, ISC, Teratec), webinars, technical white papers, and a public evaluation channel that functions as a product-led growth mechanism for converting designers into members.

Name

CCIX Consortium

Legal name

CCIX Consortium, Inc.

Website

https://ccixconsortium.com

Company type

Private

Founded year

2016

Operating status

Operating

Headcount range

11–50 employees

Short description

CCIX Consortium is a nonprofit standards body that develops and maintains the open CCIX cache-coherent interconnect specification, serving semiconductor, accelerator, IP, and server-OEM members building heterogeneous computing systems.

Ownership category

akta.pro rank

Product category

Chip-to-Chip Interconnect Standard

NAICS

Computer Systems Design and Related Services (54151)

SIC

Services-Computer Integrated Systems Design (7373)

akta.pro primary industry

AI Interconnects & Fabric (NVLink/CXL/PCIe/Switches) (HDAAAAAD)

Keywords

• Cache coherent interconnect
• Accelerator interconnect standard
• Heterogeneous computing protocol
• PCIe-based interconnect
• ISA-independent standard

Headquarters

HQ city

Beaverton

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Software

Cost components

Personnel

Revenue model

1. Membership Fees: CCIX Consortium generates revenue through membership fees from technology companies that join the consortium. Members gain access to specifications, participate in standards development, and receive benefits including access to webinar slides, webcasts, and member-exclusive resources.
2. Specification Licensing: Non-members can access an evaluation version of the CCIX Base Specification for internal evaluation purposes under a limited evaluation license agreement. Full specification access is restricted to consortium members.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels6 records

Core offering

CCIX Consortium develops and promotes an open, ISA-independent cache-coherent interconnect protocol that enables processors using different instruction set architectures (x86, ARM, POWER) to coherently share data with accelerators (GPUs, FPGAs, Smart Network Accelerators) over PCIe infrastructure. The consortium delivers multiple revisions of the CCIX Base Specification, a Software Developer's Guide, and white papers to member companies and the broader ecosystem.

Product overview

CCIX Consortium is a standards organization offering an open, non-proprietary cache-coherent interconnect standard built on PCIe. The core product portfolio centers on multiple revisions of the CCIX Base Specification (1.0, 1.0a for Evaluation, 1.1, and 2.0), which enable processors with different instruction set architectures to coherently share data with accelerators like GPUs, FPGAs, and Smart Network Accelerators for efficient heterogeneous computing. Supporting the specifications are the CCIX Software Developer's Guide 1.0 for software enablement, and introductory white papers including English and Chinese language versions. The consortium also provides video demonstrations and technical presentations showcasing CCIX technology applications for machine learning, network processing, storage offload, and in-memory database workloads.

Differentiator

Problem solved

Functional benefit

Products and services

• CCIX Base Specification 1.0 The foundational CCIX specification enabling cache-coherent interconnect for accelerators, allowing designers to start implementing the standard for new products.
• CCIX Base Specification Revision 1.0a V1.0 (Evaluation Version) An evaluation version of the CCIX Base Specification 1.0a that allows non-member companies to explore key benefits of CCIX's chip-to-chip interconnect; includes all chapters except the CCIX PHY chapter which remains limited to members.
• CCIX Base Specification Revision 1.1 V1.0 Specification revision providing support for PCIe 5.0 at 32GT/s transfer speeds, enabling increased performance, lower power needs, and cost-optimized solutions for heterogeneous compute architectures.
• CCIX Base Specification Revision 2.0 V1.0 Specification revision extending CCIX specification Rev 1.2 to support PCIe Gen6 speeds, and defining FLIT mode of transportation for CCIX messages for PCIe speeds lower than PCIe Gen6.
• CCIX Software Developer's Guide 1.0 Comprehensive guide addressing all aspects of the CCIX standard focusing on software enablement of CCIX-based systems, intended for software developers, software architects, system and device vendors, OS vendors, and firmware developers.
• An Introduction to CCIX White Paper English-language white paper explaining key features of the CCIX standard and why it is set for fast adoption and long-lasting support.
• CCIX 概述 (Chinese-language White Paper) Chinese-language white paper (CCIX™概述- 白皮书) introducing main features of the CCIX standard and explaining why it has been rapidly adopted and supported long-term.
• CCIX Consortium Membership Membership program providing organizations with full access to CCIX specifications, participation in standards development, and access to member-only resources including webinar slides, webcasts, and presentations.

Named customers9 records

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Eleven partnerships are on record, tiered core.

• Green Computing Consortium (GCC)coreStrategic or Co-development Partner · 9 April 2019CCIX Consortium and Green Computing Consortium signed a memorandum of understanding to jointly promote awareness and adoption of CCIX technology in the green computing server ecosystem. GCC has recommended CCIX as a pillar technology and included it as an essential requirement in the GCC server standards reference guide. This collaboration validates CCIX leadership in coherent interconnect technologies for green computing standards.
• AMDcoreTechnology or IntegrationAMD is a founding promoter/member of CCIX Consortium. AMD contributes to CCIX specification development, provides CCIX-enabled products including EPYC processors, and participates in CCIX demonstrations and events.
• ArmcoreTechnology or IntegrationArm is a founding promoter/member of CCIX Consortium. Arm develops CCIX-enabled processors including Neoverse N1, N2, V1 platforms, CoreLink CMN-600 and CMN-700 coherent mesh networks with integrated CCIX support.
• XilinxcoreTechnology or IntegrationXilinx serves as CCIX Chairman (Gaurav Singh) and is a founding promoter/member. Xilinx develops CCIX-enabled FPGAs and accelerators including Alveo U200 and U280 cards, Versal ACAP, and contributes significantly to CCIX specification and demonstrations.
• SynopsyscoreTechnology or IntegrationSynopsys is a promoter/member of CCIX Consortium. Synopsys provides complete CCIX IP solutions including silicon-proven controller, PHYs in advanced FinFET processes, and verification IP. Contributed to CCIX demonstrations at conferences.
• CadencecoreTechnology or IntegrationCadence is a promoter/member of CCIX Consortium. Cadence provides interface and verification IP solutions for CCIX, including 7nm 25G PHY demonstration and CCIX Design IP for SoC designs.
• HuaweicoreTechnology or IntegrationHuawei is a promoter/member and launched the industry’s first CCIX-enabled host platform with Kunpeng 920 CPU and TaiShan Server. Huawei contributes to CCIX specification and promotes adoption in the Chinese market.
• QualcommcoreTechnology or IntegrationQualcomm is a promoter/member of CCIX Consortium. Qualcomm contributes to standards and architecture planning for advanced connectivity technologies including CCIX.
• Mellanox (NVIDIA)coreTechnology or IntegrationMellanox is a founding promoter/member with Gilad Shainer serving as CCIX President. Mellanox contributes high-speed interconnect expertise to CCIX development. (Note: NVIDIA completed acquisition of Mellanox in 2020.)
• AmperecoreTechnology or IntegrationAmpere is a promoter/member of CCIX Consortium. Ampere develops CCIX-enabled Altra processors (80-core Altra, 128-core Altra Max) for cloud native workloads.
• TSMCcoreTechnology or IntegrationTSMC collaborated with Xilinx, Arm, and Cadence on the world’s first CCIX silicon demonstration vehicle in 7nm process technology, demonstrating CCIX viability in advanced semiconductor processes.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Others

• JEDEC Solid State Technology Association: JEDEC is the leading standards body for memory and semiconductor technologies, a thematically adjacent consortium to CCIX. While not directly competing, JEDEC's work on memory standards (DDR, HBM, CXL-related) intersects with CCIX's memory expansion capabilities.
• Synopsys: Synopsys is a CCIX promoter that provides silicon-proven CCIX controller, PHY, and verification IP for chip designs. It is comparable as an enabling IP supplier in the CCIX ecosystem and a fellow promoter, though not a direct competitor to the standard itself.
• Open Compute Project (OCP): OCP is an industry consortium that develops open specifications for data center hardware, thematically adjacent to CCIX's mission of enabling open heterogeneous compute. Several CCIX promoter companies (including AMD and Arm ecosystem players) participate in OCP, making it a related but non-competing peer.
• Cadence: Cadence is a CCIX promoter that provides interface and verification IP solutions for CCIX, including a 7nm 25G PHY demonstration. It is comparable as an enabling IP and EDA supplier in the CCIX ecosystem, rather than a competing standard.

Broad incumbents

• PCI-SIG: PCI-SIG is the industry standards body that owns the PCIe specification on which CCIX is built. While CCIX extends PCIe with cache coherency, PCI-SIG is the foundational incumbent whose roadmap (Gen5, Gen6) directly drives CCIX's evolution, making it the most relevant incumbent peer.
• NVIDIA (NVLink): NVIDIA's NVLink/NVSwitch represents a proprietary coherent interconnect alternative to CCIX, dominant in GPU-accelerated systems. NVIDIA also owns Mellanox (a CCIX founding promoter), positioning it as both a member and a competitor to the open CCIX standard.

Emerging players

• UCIe Consortium: Universal Chiplet Interconnect Express (UCIe) is an emerging die-to-die interconnect standard for chiplet-based designs, an adjacent space to CCIX's board-level coherent interconnect focus. Both address multi-die/multi-chip integration challenges but at different physical layers, making UCIe a thematic and partially overlapping peer.

Direct peers

• CXL Consortium: The CXL (Compute Express Link) Consortium is the most direct competitor to CCIX, defining an open cache-coherent interconnect standard built on PCIe for processors and accelerators. Both target the same fundamental problem (coherent heterogeneous compute) with overlapping technical approaches, making them the most directly comparable peer.
• Gen-Z Consortium: Gen-Z was a competing open interconnect standards body focused on memory-semantic fabric for heterogeneous computing, providing a directly comparable alternative to CCIX in the cache-coherent accelerator interconnect space. Both organizations targeted similar use cases including memory disaggregation and accelerator connectivity.
• OpenCAPI Consortium: OpenCAPI was an IBM-led open coherent accelerator interface standard and a direct peer to CCIX, addressing the same problem of coherent processor-accelerator communication. Both competed in the same architectural niche before consolidating into the broader coherent interconnect ecosystem.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/CCIXConsortium
• YouTubeyoutube.com/channel/UCYs_pzgOtaT7JQH4WTEts6Q
• LinkedInlinkedin.com/company/ccixconsortium

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about CCIX Consortium