SH

SK Hynix

000660.KS

Hardware

Memory-chip maker whose high-bandwidth memory is built for AI accelerators, alongside a DRAM, NAND and enterprise SSD line.

Total funding—

Market cap$874.5B

Employees36,042

Founded1983

HeadquartersIcheon, South Korea

StatusPublic

Products

Selected offerings — the AI products recorded here, not the vendor's full catalogue.

• CMM-DDR5 Hardware

  CXL 2.0 memory module that expands and pools DDR5 capacity and bandwidth beyond the CPU's own channels for AI and high-performance computing servers, with a 96GB version through customer validation and a 128GB 1bnm version following.

• HBM3E Hardware

  Fourth-generation high-bandwidth memory that vertically stacks up to 12 DRAM layers for 36GB at 9.6Gbps, sold to GPU and AI accelerator makers for AI server packages.

• HBM4 Hardware

  Fifth-generation high-bandwidth memory with 2,048 I/O terminals and over 10Gbps operating speed, roughly doubling HBM3E bandwidth for next-generation AI accelerators.

• PEB000 Series Hardware

  PCIe Gen5 enterprise SSD series in E1.S form factor with in-house ASIC and V8 4D NAND, power-optimised for AI servers and NVIDIA RVL-qualified for GB200 -- one model shipping today, PEB110 (1,920-7,680GB, 20W, mass production).

• PS1000 Series Hardware

  PCIe Gen5 enterprise SSD series with in-house ASIC and V7 4D NAND for high-performance datacenter workloads, supporting up to 16TB in U.2/3 and the newer E3.S form factor -- two models shipping today, PS1010 and PS1030.

• SOCAMM2 Hardware

  192GB LPDDR5X-based low-power memory module built on the 1cnm process and designed as main memory for AI servers, delivering over double the bandwidth of conventional RDIMM at over 75% better power efficiency.

Closest alternatives 3

KKioxiaPublic · $177.9BKioxia Holdings' own Annual Securities Report (FY ended March 2026), p.101 -- explicitly calls SK Hynix 'a competitor of the Group.' STRONGEST TIER.2 of 4 capabilitiesShared product typeSame scale bandNamed in filingBuy data-centre AI computeBuy high-bandwidth memoryCompareSESamsung ElectronicsPublic · $1.2TNvidia, the buyer, certified Samsung and SK hynix (among others) as qualified, interchangeable HBM4 suppliers for the same Vera Rubin platform — a direct buyer-choice claim.2 of 4 capabilitiesShared product typeSourced competitorBuy high-bandwidth memoryCompareMTMicron TechnologyPublic · $1.1T1 of 4 capabilitiesShared product typeNamed in filingBuy high-bandwidth memoryCompare

Similar products 41

How this list is ranked ↗

DTDell TechnologiesPublic · $360.7BHBM3E and Dell Pro Max AI Desktop do comparable work on AI compute hardware and model training; both also serve buyers who need to buy data-centre AI compute; same layer and the same scale band (large-cap).3 of 4 capabilitiesShared product typeSame scale bandCompareANArista NetworksPublic · $246.4BPEB000 Series and 7060X5 Series do comparable work on AI compute hardware; both also serve buyers who need to buy data-centre AI compute; same layer and the same scale band (large-cap).1 of 4 capabilitiesShared product typeSame scale bandCompareMTMarvell TechnologyPublic · $214.9BPEB000 Series and Marvell Structera CXL Portfolio do comparable work on memory; both also serve buyers who need to buy high-bandwidth memory; same layer and the same scale band (large-cap).1 of 4 capabilitiesShared product typeSame scale bandCompareAAMDPublic · $785.1BPEB000 Series and AMD Kria SOMs do comparable work on AI compute hardware; both also serve buyers who need to buy data-centre AI compute; same layer and the same scale band (large-cap).3 of 4 capabilitiesShared product typeSame scale bandCompareHHuaweiPrivateHBM3E and Atlas 650E AI Server do comparable work on AI compute hardware and model training; both also serve buyers who need to buy data-centre AI compute; smaller scale (private).3 of 4 capabilitiesShared product typeCompareTTenstorrentPrivate · $2.6BCMM-DDR5 and TT-LoudBox do comparable work on AI compute hardware; both also serve buyers who need to buy data-centre AI compute; smaller scale (private).2 of 4 capabilitiesShared product typeSmaller scaleCompareCCiscoPublic · $433.3BHBM3E and Cisco AI PODs do comparable work on AI compute hardware and model training; both also serve buyers who need to buy data-centre AI compute; same layer and the same scale band (large-cap).3 of 4 capabilitiesShared product typeSame scale bandCompareALAstera LabsPublic · $50.4BPEB000 Series and Leo Smart Memory Controllers do comparable work on memory; smaller scale (public).1 of 4 capabilitiesShared product typeSmaller scaleCompareAAAxelera AIPrivate · $450M raisedCMM-DDR5 and Axelera AI Mini PC do comparable work on AI compute hardware; both also serve buyers who need to buy data-centre AI compute; similar scale (private).2 of 4 capabilitiesShared product typeCompareSSambaNovaPrivate · $11BPEB000 Series and SambaRack do comparable work on AI compute hardware; both also serve buyers who need to buy data-centre AI compute; smaller scale (private).2 of 4 capabilitiesShared product typeSmaller scaleCompareNNVIDIAPublic · $5.1TCMM-DDR5 and NVIDIA DGX Spark do comparable work on AI compute hardware; both also serve buyers who need to buy data-centre AI compute; larger scale (public).3 of 4 capabilitiesShared product typeLarger scaleCompareGGraphcorePrivateHBM3E and IPU (Intelligence Processing Unit) do comparable work on model training; both also serve buyers who need to buy data-centre AI compute; Graphcore's scale not recorded.2 of 4 capabilitiesShared product typeCompareIIntelPublic · $463.7BHBM3E and Intel Gaudi AI Accelerator do comparable work on model training; both also serve buyers who need to buy data-centre AI compute; same layer and the same scale band (large-cap).3 of 4 capabilitiesShared product typeSame scale bandCompareHRHorizon RoboticsPublic · $8.8BCMM-DDR5 and Journey 6 Series do comparable work on AI compute hardware; both also serve buyers who need to buy data-centre AI compute; smaller scale (public).2 of 4 capabilitiesShared product typeSmaller scaleCompareCSCerebras SystemsPublic · $44.4BHBM3E and Cerebras WSE-3 Turbo (WSE-3T) do comparable work on model training; both also serve buyers who need to buy data-centre AI compute; smaller scale (public).2 of 4 capabilitiesShared product typeSmaller scaleCompareAHArm HoldingsPublic · $282.8BPEB000 Series and Arm Neoverse CSS N4 do comparable work on AI compute hardware; same layer and the same scale band (large-cap).2 of 4 capabilitiesShared product typeSame scale bandCompareHTHailo TechnologiesAcquired ($340M deal)PEB000 Series and Hailo-10H do comparable work on AI compute hardware; Hailo Technologies is acquired, with no independent scale.2 of 4 capabilitiesShared product typeCompareQQualcommPublic · $174.9BPEB000 Series and Qualcomm Dragonwing IQ9 Series do comparable work on AI compute hardware; same layer and the same scale band (large-cap).2 of 4 capabilitiesShared product typeSame scale bandCompareAMApplied MaterialsPublic · $380.7BHBM3E and SEMVision H20 do comparable work on model training; both also serve buyers who need to buy data-centre AI compute; same layer and the same scale band (large-cap).1 of 4 capabilitiesShared product typeSame scale bandCompareCCrusoePrivate · $10BPEB000 Series and Crusoe Spark do comparable work on AI compute hardware; both also serve buyers who need to buy data-centre AI compute; smaller scale (private).3 of 4 capabilitiesShared product typeSmaller scaleCompareLLambdaPrivate · $1.5B raisedPEB000 Series and Lambda Superclusters do comparable work on AI compute hardware; both also serve buyers who need to buy data-centre AI compute; similar scale (private); ships infrastructure service and model API rather than the same layer.3 of 4 capabilitiesDifferent layerCompareTTSMCPublic · $2TPEB000 Series and TSMC foundry services both serve buyers who need to buy data-centre AI compute; larger scale (public).Shared product typeLarger scaleCompareAAmazonPublic · $2.8TCMM-DDR5 and AWS Inferentia do comparable work on AI compute hardware; both also serve buyers who need to buy data-centre AI compute; larger scale (public).3 of 4 capabilitiesShared product typeLarger scaleCompareSESchneider ElectricPublic · $200.4BPEB000 Series and NetShelter Power Rack 800VDC do comparable work on AI compute hardware; same layer and the same scale band (large-cap).2 of 4 capabilitiesShared product typeSame scale bandCompareAAlphabet (Google)Public · $4.2THBM3E and Google Cloud TPU do comparable work on AI compute hardware and model training; both also serve buyers who need to buy data-centre AI compute; larger scale (public).3 of 4 capabilitiesShared product typeLarger scaleCompareSSenseTimePublic · $7.7BPEB000 Series and SenseScale SSP do comparable work on AI compute hardware; both also serve buyers who need to buy data-centre AI compute; smaller scale (public).3 of 4 capabilitiesShared product typeSmaller scaleCompareAAlibabaPublic · $273.4BHBM3E and Alibaba Cloud Elastic GPU Service do comparable work on AI compute hardware and model training; both also serve buyers who need to buy data-centre AI compute; ships AI agent, API service and 4 more rather than the same layer.3 of 4 capabilitiesDifferent layerSame scale bandCompareAASMLPublic · $670.1BCMM-DDR5 and ASML DUV lithography systems both serve buyers who need to buy data-centre AI compute; same layer and the same scale band (large-cap).Shared product typeSame scale bandCompareGGroqPrivate · $3.5BCMM-DDR5 and Groq LPU (GroqChip) both serve buyers who need to buy data-centre AI compute; smaller scale (private).1 of 4 capabilitiesShared product typeSmaller scaleCompareCCore42PrivateCMM-DDR5 and Core42 Sovereign AI Cloud do comparable work on AI compute hardware; both also serve buyers who need to buy data-centre AI compute; Core42's scale not recorded; ships API service and infrastructure service rather than the same layer.2 of 4 capabilitiesDifferent layerCompareBBroadcomPublic · $1.7TCMM-DDR5 and Broadcom custom silicon both serve buyers who need to buy data-centre AI compute; similar scale (public).Shared product typeCompareOOraclePublic · $454.4BHBM3E and OCI Compute for GPUs do comparable work on AI compute hardware and model training; both also serve buyers who need to buy data-centre AI compute; ships API service, agent platform and 5 more rather than the same layer.3 of 4 capabilitiesDifferent layerSame scale bandCompare44ParadigmPublic · $2BPEB000 Series and 4Paradigm SageOne both serve buyers who need to buy data-centre AI compute; smaller scale (public).2 of 4 capabilitiesShared product typeSmaller scaleCompareNGNebius GroupPublic · $61.6BHBM3E and Nebius AI Cloud do comparable work on model training; both also serve buyers who need to buy data-centre AI compute; smaller scale (public); ships developer tool, infrastructure service and 1 more rather than the same layer.2 of 4 capabilitiesDifferent layerSmaller scaleCompareRRunPodPrivateHBM3E and Pods do comparable work on model training; both also serve buyers who need to buy data-centre AI compute; RunPod's scale not recorded; ships developer tool, infrastructure service and 2 more rather than the same layer.2 of 4 capabilitiesDifferent layerCompareHFHugging FacePrivate · $4.5BHBM3E and Hugging Face Jobs do comparable work on AI compute hardware and model training; smaller scale (private); ships API service, application and 2 more rather than the same layer.3 of 4 capabilitiesDifferent layerSmaller scaleCompareHCHuawei CloudPrivatePEB000 Series and GPU Accelerated Cloud Server do comparable work on AI compute hardware; both also serve buyers who need to buy data-centre AI compute; Huawei Cloud's scale not recorded; ships API service, application and 4 more rather than the same layer.3 of 4 capabilitiesDifferent layerCompareCCoreWeavePublic · $48.5BHBM3E and CoreWeave AI Cloud do comparable work on model training; both also serve buyers who need to buy data-centre AI compute; smaller scale (public); ships AI agent, infrastructure service and 1 more rather than the same layer.2 of 4 capabilitiesDifferent layerSmaller scaleCompareHHumainPrivateHBM3E and HUMAIN COMPUTE do comparable work on model training; both also serve buyers who need to buy data-centre AI compute; Humain's scale not recorded; ships API service, agent platform and 1 more rather than the same layer.2 of 4 capabilitiesDifferent layerCompareTATogether AIPrivate · $8.3BHBM3E and Together GPU Clusters do comparable work on model training; both also serve buyers who need to buy data-centre AI compute; smaller scale (private); ships API service, developer tool and 2 more rather than the same layer.2 of 4 capabilitiesDifferent layerSmaller scaleCompareBBaiduPublic · $31.6BHBM3E and Baidu Baige AI Computing Platform do comparable work on model training; both also serve buyers who need to buy data-centre AI compute; smaller scale (public); ships API service, application and 4 more rather than the same layer.2 of 4 capabilitiesDifferent layerSmaller scaleCompare

Closest alternatives are pairs a vendor page itself compares. Similar products are matched from what each product does; nothing in that group is asserted as a rivalry.

Sources

Market cap

Third-party database · 28 Aug 2026

Market capitalisation 1,204.81T KRW, stockanalysis.com, converted at 1,377.69 KRW/USD (Federal Reserve H.10, 2026-08-28).

Employees

Third-party database · 28 Aug 2026

Employee count read from stockanalysis.com's overview page.

Founded

Wikipedia · 29 Aug 2026

Established 23 February 1983 as Hyundai Electronics Industries; renamed Hynix in 2001, SK Hynix in 2012 after SK Group took a controlling stake.

Revenue (TTM)

Third-party database · 28 Aug 2026

Trailing-twelve-month revenue 189.17T KRW, stockanalysis.com, converted at 1,377.69 KRW/USD (Federal Reserve H.10, 2026-08-28).

Description

Official documentation · 6 Sep 2026

Neither "NVIDIA's lead HBM supplier" nor "nearly every leading AI accelerator" appears on any reachable SK hynix page, and the company names no customer and makes no market claim on its own site. What its newsroom does establish, dated, is the HBM line and its AI-infrastructure purpose — "SK hynix Presents a Full Lineup of Memory Solutions Optimized for AI Infrastructure at DTF 2026" (26 August 2026) and "From HBM to eSSD" (8 July 2026).

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