How does HBM recycling differ from regular DDR recycling?

HBM uses TSV (through-silicon via) 3D stacking and is tightly coupled to the GPU/SoC through CoWoS packaging — it cannot be removed from the PCB the way DDR dies can. HBM recycling today is dominated by whole-card recycling; die-level recycling requires advanced packaging teardown equipment and wafer-level testing capabilities, making the technical barriers far higher than for regular DDR.

What is the HBM worth after A100 and H100 cards retire?

The A100 80GB carries 4 stacks of HBM2e totaling 80GB; the H100 carries 6 stacks of HBM3 totaling 80GB. Whole-card recycling runs about CNY 30,000–50,000 for the A100 and CNY 80,000–120,000 for the H100. If dismantled to die level, each HBM3 stack recycles at roughly CNY 2,000–3,500, but teardown losses and technical costs are high, so whole-card recycling remains the mainstream.

What does the HBM recycling market look like? Which manufacturer dominates?

SK Hynix holds roughly 50% of the HBM market, Samsung about 35–40%, and Micron about 10–15%. In the HBM3E era, SK Hynix's lead is pronounced — it was first to mass-produce 12-Hi HBM3E. SK Hynix dies also make up the largest share of recycling supply.

HBM3/HBM3E Memory Recycling: High-Bandwidth Memory Residual Value in the AI Accelerator Retirement Wave

HBM: The Crown Jewel of Memory Chip Recycling

If DDR4 recycling is a volume business, then HBM (High Bandwidth Memory) recycling is the crown jewel of the memory recycling industry. HBM is the core memory of AI compute chips, with per-unit value far exceeding that of regular DRAM — but it is also the hardest to recycle. In 2026, AI servers deployed in 2022–2023 are hitting their first refresh peak: A100/H100 accelerator cards carrying HBM2e/HBM3 are retiring in bulk, and HBM recycling has moved from theory to real-world demand.

HBM Configurations Across AI Accelerator Cards

HBM configurations vary enormously across accelerator generations, directly determining residual value:

Accelerator Model	HBM Generation	HBM Capacity	Stack Height	Whole-Card Recycling Price (Reference Price (CNY))
NVIDIA A100 80GB	HBM2e	80GB (4 × 20GB)	4-Hi/8-Hi mixed	30,000–50,000
NVIDIA H100 SXM5	HBM3	80GB (5 × 16GB)	8-Hi	80,000–120,000
NVIDIA H200	HBM3e	141GB (6 × 24GB)	8-Hi	150,000–220,000
NVIDIA B200	HBM3e	192GB (8 × 24GB)	12-Hi	250,000–350,000
AMD MI300X	HBM3	192GB (8 × 24GB)	8-Hi	180,000–280,000

As the table shows, in the HBM3e era, per-card residual value has broken through CNY 300,000 — 5–7 times the A100. The core logic behind this: per-stack capacity jumped from 16GB on HBM2e to 24GB on HBM3e, and 12-Hi stacking raised density by 50%.

Whole-Card vs Die-Level Recycling: Two Routes Compared

HBM recycling currently faces a key decision: whole-card recycling or teardown to die level? Each route has its trade-offs:

Whole-card recycling (mainstream model): Quote directly on the complete AI accelerator card, with no HBM teardown needed. Pros: simple process, low risk. Cons: a fixed buyer pool (mainly AI compute lessors and second-tier cloud providers) limits the premium
Die-level recycling (technology-driven): Separate the HBM from the GPU bare die via CoWoS teardown and wafer-level testing. Pros: HBM dies can be sold independently to packaging and testing houses at a 30%–50% premium. Cons: advanced packaging equipment is required — a single teardown line costs over CNY 2 million
Hybrid model (compromise): Recyclers buy whole cards first, then decide whether to dismantle or resell based on GPU condition. Healthy cards go to the rental market; defective cards are dismantled for HBM dies

Reference Prices for Die-Level HBM Recycling

If teardown to die level succeeds, current market reference prices are:

HBM Model	Capacity per Stack	Price per Stack (Reference Price (CNY))	Supplier
HBM2e 4-Hi	16GB	800–1,500	Samsung/SK Hynix
HBM3 8-Hi	16GB	2,000–3,500	Samsung/SK Hynix
HBM3e 8-Hi	24GB	3,500–5,500	SK Hynix/Samsung
HBM3e 12-Hi	24GB (36GB stack)	5,000–8,000	SK Hynix only

Note: die-level HBM recycling prices are highly volatile. The ranges above are Q3 2026 references; actual quotes depend on die health, test reports, and batch size.

Three Technical Barriers to HBM Recycling

Die-level HBM recycling cannot be done with ordinary teardown operations — the technical bar is far above DDR/NAND:

CoWoS teardown: HBM is tightly coupled to the GPU through CoWoS (Chip on Wafer on Substrate) 2.5D packaging with TSV interconnects. Teardown requires laser cutting plus plasma etching — equipment investment of CNY 2 million+
Wafer-level testing capability: Torn-down HBM must pass Known Good Die (KGD) testing, requiring 12-inch probe cards and high-speed testers — single test machines from suppliers cost CNY 5 million+
HBM3e yield challenges: With 12-Hi stack heights, post-teardown yield can drop from roughly 90% before teardown to 70–80%, making yield losses costly

HBM Supply Landscape and Recycling Sources

The HBM market is highly concentrated, split among three manufacturers:

SK Hynix: Around 50% HBM market share, leading HBM3e progress with 12-Hi products already in mass production. SK Hynix dies dominate recycling supply
Samsung: Roughly 35–40% share; 8-Hi HBM3E already shipping in volume, with 12-Hi products targeted for Q2 2026 mass production
Micron: Roughly 10–15% share; 8-Hi HBM3E mass production came later, so its recycling supply is relatively scarce

On the supply side, AI server retirement is the largest source of HBM recycling volume. A100 server clusters deployed in 2022 are entering retirement as their 3–4-year warranty periods expire — a single cluster can hold several thousand cards, creating one-off supply windows for HBM recyclers.

HBM vs Other Memory Chips: Value-for-Money Comparison

Category	Residual Value per Unit/Stack	Technical Barrier	2026 Supply Volume
HBM3e	CNY 3,500–8,000/stack	Very high (CoWoS teardown)	Low (just starting to retire)
HBM3	CNY 2,000–3,500/stack	Very high	Medium
LPDDR5X	CNY 80–120/unit	Medium (BGA rework)	High
DDR4 8Gb	CNY 5–15/unit	Low (standard teardown)	Very high
NAND 256Gb TLC	CNY 8–20/unit	Low	High

HBM's per-unit value is hundreds of times that of DDR4, but volumes are small and barriers high — it suits a premium, high-precision model rather than a volume play.

Advice for Recyclers and Holders

Recyclers: If you can invest in CoWoS teardown equipment, die-level HBM recycling margins can reach 40%–60% — far above the 15%–20% on whole-card resale. Recommendation: take whole-card recycling orders first, accumulate teardown experience, then invest in equipment
Data centers/AI companies: HBM accounts for 60%–70% of a retired accelerator card's total value — far more than the GPU bare die. Completing a full health test report before retirement can lift recycling quotes by 10%–15%
Watch the B200 retirement cycle: B200 cards enter retirement in 2027–2028; with 8 HBM3e stacks per card worth over CNY 300,000, this is the biggest HBM recycling story of the next two years
Beware refurbishment risk: Refurbished HBM cards entering the secondary market carry hard-to-verify health. Reputable recyclers should establish HBM health grading standards

MemoryRecycle continuously tracks HBM technology evolution and the retirement pace of AI accelerator cards. We have established whole-card recycling capabilities for HBM2e/HBM3 and are building out a CoWoS teardown line. For data centers and cloud providers holding retired AI accelerator cards, we provide free evaluations and professional recycling plans to maximize the residual value of high-value HBM chips.