{
 "title": "MemoryB2B HBM stack index",
 "description": "VRAM and HBM chip lines held in Shenzhen, indexed by generation, stack height, capacity and maker. HBM2 (2 lines), HBM2E (5 lines), HBM3 (4 lines), HBM3E (6 lines), GDDR7 (1 line), OTHER (3 lines).",
 "source": "https://memoryb2b.com/data/hbm-stack-index/",
 "publisher": "MemoryB2B (Hong Kong Changjiang International Ltd.)",
 "license": "Free to reuse, including commercially, with attribution to MemoryB2B and a link to the source URL.",
 "updated": "2026-11-11",
 "count": 21,
 "fields": [
  "sku",
  "description",
  "generation",
  "stack_height",
  "capacity_gb",
  "maker"
 ],
 "entries": [
  {
   "sku": "VRAM-GDDR7-SAM-01",
   "description": "GDDR7 16Gb (2GB) VRAM chip (Samsung K4VAF325ZC-SC28)",
   "generation": "GDDR7",
   "stack_height": "",
   "capacity_gb": 2.0,
   "maker": "Samsung"
  },
  {
   "sku": "VRAM-HBM2-SAM-01",
   "description": "HBM2 8GB 8-Hi, Samsung KHA884901X-MC12TIF",
   "generation": "HBM2",
   "stack_height": "8-Hi",
   "capacity_gb": 8.0,
   "maker": "Samsung"
  },
  {
   "sku": "VRAM-HBM2-SAM-02",
   "description": "HBM2 8GB 8-Hi, Samsung KHA884901X-MC13TIF",
   "generation": "HBM2",
   "stack_height": "8-Hi",
   "capacity_gb": 8.0,
   "maker": "Samsung"
  },
  {
   "sku": "VRAM-HBM2e-HYN-07",
   "description": "HBM2e 8GB 4-Hi, SK hynix H5WR64ESM4W-N6L",
   "generation": "HBM2E",
   "stack_height": "4-Hi",
   "capacity_gb": 8.0,
   "maker": "SK hynix"
  },
  {
   "sku": "VRAM-HBM2e-HYN-08",
   "description": "HBM2e 8GB 4-Hi, SK hynix H5WR64ESM4W-N8L",
   "generation": "HBM2E",
   "stack_height": "4-Hi",
   "capacity_gb": 8.0,
   "maker": "SK hynix"
  },
  {
   "sku": "VRAM-HBM2e-SAM-03",
   "description": "HBM2e 8GB 8-Hi VRAM chip (Samsung)",
   "generation": "HBM2E",
   "stack_height": "8-Hi",
   "capacity_gb": 8.0,
   "maker": "Samsung"
  },
  {
   "sku": "VRAM-HBM2e-HYN-09",
   "description": "HBM2e 16GB 8-Hi VRAM chip (SK hynix)",
   "generation": "HBM2E",
   "stack_height": "8-Hi",
   "capacity_gb": 16.0,
   "maker": "SK hynix"
  },
  {
   "sku": "VRAM-HBM2e-SAM-05",
   "description": "HBM2e 16GB 8-Hi VRAM chip (Samsung)",
   "generation": "HBM2E",
   "stack_height": "8-Hi",
   "capacity_gb": 16.0,
   "maker": "Samsung"
  },
  {
   "sku": "VRAM-HBM3-HYN-14",
   "description": "HBM3 16GB 8-Hi VRAM chip (SK hynix)",
   "generation": "HBM3",
   "stack_height": "8-Hi",
   "capacity_gb": 16.0,
   "maker": "SK hynix"
  },
  {
   "sku": "VRAM-HBM3-SAM-11",
   "description": "HBM3 16GB 8-Hi VRAM chip (Samsung)",
   "generation": "HBM3",
   "stack_height": "8-Hi",
   "capacity_gb": 16.0,
   "maker": "Samsung"
  },
  {
   "sku": "VRAM-HBM3-HYN-16",
   "description": "HBM3 24GB 12-Hi VRAM chip (SK hynix)",
   "generation": "HBM3",
   "stack_height": "12-Hi",
   "capacity_gb": 24.0,
   "maker": "SK hynix"
  },
  {
   "sku": "VRAM-HBM3-SAM-13",
   "description": "HBM3 24GB 12-Hi VRAM chip (Samsung)",
   "generation": "HBM3",
   "stack_height": "12-Hi",
   "capacity_gb": 24.0,
   "maker": "Samsung"
  },
  {
   "sku": "VRAM-HBM3e-HYN-20",
   "description": "HBM3e 24GB 8-Hi VRAM chip (SK hynix)",
   "generation": "HBM3E",
   "stack_height": "8-Hi",
   "capacity_gb": 24.0,
   "maker": "SK hynix"
  },
  {
   "sku": "VRAM-HBM3e-MIC-23",
   "description": "HBM3e 24GB 8-Hi VRAM chip (Micron)",
   "generation": "HBM3E",
   "stack_height": "8-Hi",
   "capacity_gb": 24.0,
   "maker": "Micron"
  },
  {
   "sku": "VRAM-HBM3e-SAM-18",
   "description": "HBM3e 24GB 8-Hi VRAM chip (Samsung)",
   "generation": "HBM3E",
   "stack_height": "8-Hi",
   "capacity_gb": 24.0,
   "maker": "Samsung"
  },
  {
   "sku": "VRAM-HBM3e-HYN-21",
   "description": "HBM3e 36GB 12-Hi VRAM chip (SK hynix)",
   "generation": "HBM3E",
   "stack_height": "12-Hi",
   "capacity_gb": 36.0,
   "maker": "SK hynix"
  },
  {
   "sku": "VRAM-HBM3e-MIC-25",
   "description": "HBM3e 36GB 12-Hi VRAM chip (Micron)",
   "generation": "HBM3E",
   "stack_height": "12-Hi",
   "capacity_gb": 36.0,
   "maker": "Micron"
  },
  {
   "sku": "VRAM-HBM3e-SAM-19",
   "description": "HBM3e 36GB 12-Hi VRAM chip (Samsung)",
   "generation": "HBM3E",
   "stack_height": "12-Hi",
   "capacity_gb": 36.0,
   "maker": "Samsung"
  },
  {
   "sku": "CHIP-GB202-301-A1",
   "description": "NVIDIA GB202-301-A1 GPU Die (RTX 5090 class core, pulled)",
   "generation": "OTHER",
   "stack_height": "",
   "capacity_gb": 0.0,
   "maker": "NVIDIA"
  },
  {
   "sku": "VRAM-GDDR6-SAM-SC16",
   "description": "Samsung K4ZAF325BC-SC16 GDDR6 16Gb (2GB) VRAM chip \u2014 for NVIDIA RTX 30/20 series",
   "generation": "OTHER",
   "stack_height": "",
   "capacity_gb": 2.0,
   "maker": "Samsung"
  },
  {
   "sku": "VRAM-GDDR6X-MIC-D8BZC",
   "description": "Micron MT61K512M32KPA-21:U (D8BZC) GDDR6X 16Gb (2GB) VRAM chip \u2014 for NVIDIA RTX 40/50 series",
   "generation": "OTHER",
   "stack_height": "",
   "capacity_gb": 2.0,
   "maker": "Micron"
  }
 ]
}