[09:25 Fri,7.March 2025 by Thomas Richter] |
SanDisk has developed a new memory technology called High Bandwidth Flash (HBF), which aims to enable up to 4 TB of memory capacity on graphics cards. HBF memory is based on NAND flash and aims to achieve the memory bandwidth of conventional VRAM with High Bandwidth Memory (HBM), but with much larger – up to 16x more – memory capacities. ;) HBM vs HBF
Technical Details of SanDisk&s HBF MemoryThe new HBF memory combines 3D NAND flash with an HBM-like architecture. Multiple NAND chips are stacked and interconnected, enabling high parallelism in data access and thus speed. A single stacked HBF module (stack) offers a capacity of around 512 GB, which represents a significant increase compared to current HBM3e memory, offering a maximum of 24 GB. With up to eight HBF modules on a graphics card, a massive total memory capacity of 4 TB could be achieved. The memory bandwidth of HBF is expected to approach that of HBM, although SanDisk has not yet provided specific performance figures. For comparison: An HBM2 stack achieves a bandwidth of approximately 300 GB/s, and newer HBM3E stacks offer up to 1 TB/s. HBF uses a similar architecture to HBM, but requires some adjustments to be fully compatible with current GPU designs. ;) A significant difference to conventional VRAM, however, is the higher access latency of flash memory. HBF is therefore less suitable for latency-critical applications such as games and more suitable for application scenarios where large amounts of data are read sequentially, such as in the processing of AI data – this would allow both the AI model and the data to be processed directly on the GPU. 4 TB Graphics Cards – Interesting for AI and FilmHowever, in film production, larger video data or 3D models could also be processed more efficiently without constantly accessing slower system memory or SSDs. Current graphics cards often do not have enough VRAM to work with large projects in high resolution such as 8K video or complex VFX scenes in real time. With 4 TB of HBF memory, this data could be stored directly on the GPU, enabling smoother editing and previewing. HBF technology is still under development, and SanDisk has not yet announced any concrete products or prices. However, if HBF becomes market-ready, it could significantly accelerate working with large amounts of data in specialized applications in the field of film and video production or AI.  more infos at bei documents.sandisk.comdeutsche Version dieser Seite: SanDisk stellt Grafikkarten mit 4 TB Speicher dank neuer HBF-Technologie in Aussicht |
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