Brand: Industry Standard (JEDEC / NVIDIA / Micron / SK Hynix) · SKU: HBM2-GDDR6X-COMP · MPN: HBM2-GDDR6X-TECH · Category: Components
A comprehensive technical comparison between High Bandwidth Memory 2 (HBM2) and Graphics Double Data Rate 6X (GDDR6X). HBM2 is a high-performance RAM interface for 3D-stacked DRAM, used in conjunction with high-performance graphics accelerators, network devices, and high-performance computing (HPC) systems. It features an ultra-wide 1024-bit bus per stack and operates at lower clock speeds to maximize power efficiency. GDDR6X, developed by Micron in collaboration with NVIDIA, is the evolution of GDDR6 memory, utilizing PAM4 (Pulse Amplitude Modulation 4-level) signaling to double the data rate per clock cycle, reaching speeds of up to 21 Gbps per pin. While HBM2 excels in bandwidth density and power-per-bit efficiency for AI training (e.g., NVIDIA A100), GDDR6X provides a cost-effective high-bandwidth solution for consumer and professional workstation GPUs (e.g., NVIDIA RTX 4090).
| Architecture | HBM2 (3D Stacked DRAM) vs GDDR6X (Planar SMT Chips) |
|---|---|
| Peak Bandwidth | HBM2: ~256-460 GB/s per stack | GDDR6X: ~1 TB/s (on 384-bit bus) |
| Memory Bus Width | HBM2: 1024-bit per stack | GDDR6X: 32-bit per chip (up to 384-bit aggregate) |
| Power Efficiency | HBM2: High (Superior bandwidth per watt) | GDDR6X: Moderate |
| Data Rate / Speed | HBM2: ~2.0-2.4 Gbps per pin | GDDR6X: 19-21 Gbps per pin |
| Operating Voltage | HBM2: ~1.2V | GDDR6X: ~1.35V |
| Signaling Technology | HBM2: NRZ (Non-Return-to-Zero) | GDDR6X: PAM4 (Pulse Amplitude Modulation 4) |
| Physical Implementation | HBM2: On-package via Silicon Interposer | GDDR6X: Soldered to PCB around GPU |
| Warranty | Not Available |
| Weight | Not Available |
| Dimensions | Not Available |
The choice between HBM2 and GDDR6X is a trade-off between cost, complexity, and efficiency. HBM2 provides massive parallel bandwidth and low power consumption by stacking memory vertically and placing it extremely close to the processor, making it the standard for data centers and AI. GDDR6X focuses on high frequency and serial throughput, offering a more modular and affordable solution for gaming and content creation workloads.
Yes, this HBM2 vs GDDR6X Memory Technology (HBM2-GDDR6X-COMP) is 100% genuine Industry Standard (JEDEC / NVIDIA / Micron / SK Hynix) hardware. All our products are verified by certified technicians and come with clean serial numbers ready for service contract registration.
This HBM2 vs GDDR6X Memory Technology includes our standard 3-Year Warranty covering all manufacturing defects. We also offer advanced replacement options for minimal downtime.
We offer free ground shipping which typically takes 3-5 business days. Expedited shipping options are available at checkout for faster delivery.
Yes, we have a 30-day return policy on all products. Restocking fees may apply for opened items. Please see our return policy for complete details.
Please check the specifications tab for detailed compatibility information. Our technical team is available to assist with compatibility questions for the HBM2-GDDR6X-COMP.