Choosing an NVMe SSD for video editing means more than checking speed numbers. One key difference is whether the drive has its own DRAM cache. Some drives skip DRAM and borrow system memory through HMB instead. Choosing wrongly can slow timelines and waste your editing budget. This guide explains both designs in simple, practical terms for editors. Examples come from drives listed at Star Tech in Bangladesh.
What Does an SSD’s DRAM Actually Do?
An SSD must track where every piece of data sits on its flash memory. The controller keeps this map in a table called the flash translation layer. Drives with dedicated DRAM store that table in fast onboard memory. This lets the drive find data quickly and manage writes efficiently. Star Tech lists drives marked with DRAM cache, including the Kingston KC3000. The TEAM T-FORCE G70 PRO 2TB is another listed example.
How HMB Helps DRAM-Less SSDs
DRAM-less SSDs have no dedicated memory chip, which lowers cost and power use. Host Memory Buffer, or HMB, lets the drive borrow some system RAM. The drive uses it to cache part of its mapping table. This closes much of the speed gap in everyday tasks. HMB needs NVMe support from your system, so check compatibility first. Modern Windows versions generally support HMB on internal NVMe drive slots. It may not work through some external USB drive enclosures at all.
Performance in Video Editing Workflows
Large video files read and write in long sequential streams. Here, a good DRAM-less drive with HMB can perform close to a DRAM model. The gap grows with many small files, such as caches, proxies, and project databases. Sustained writes also depend on NAND type, SLC cache size, and cooling. A DRAM drive may stay steadier when the cache fills. Heat can throttle any NVMe drive, so a heatsink helps. Test your own workflow by watching timeline scrubbing and export times.
When DRAM-Less HMB SSDs Make Sense
DRAM-less HMB drives suit footage libraries, archives, and secondary storage. They also suit light 1080p editing and short social media projects. Their lower price helps editors buy more terabytes for the same budget. Pick a larger capacity, since bigger drives usually keep faster write speeds. Check the TBW rating for endurance, because heavy editing writes a lot.
When a Dedicated DRAM SSD Is Worth It
Dedicated DRAM drives suit your main editing drive and active projects. They handle media cache, render files, and many simultaneous small reads well. Multicam 4K projects, color grading, and effects-heavy timelines benefit the most. They usually cost more per terabyte, but the steadier performance saves time. Use one as your project and cache drive for smoother scrubbing.
Buying Checklist for Video Editors
Match the PCIe generation to your motherboard or laptop slot. Look for “with DRAM cache” in the product title or specifications. Choose at least 1TB for active projects, and more for 4K footage. Check the TBW rating, warranty period, and whether a heatsink is included. Editing also needs enough memory, so review desktop RAM and laptop RAM options too. Back up important projects, because no SSD is a backup.
Which Should You Buy?
Choose a DRAM-less HMB SSD for archives, footage storage, and light editing. Choose a dedicated DRAM SSD for your main project and cache drive. For most professional editors, a mix of both works best. Buy more capacity before chasing the highest advertised speed rating. Match your SSD choice to your actual workflow and budget. Always confirm stock, since some older listings may be discontinued.
Where to Buy in Bangladesh
Star Tech offers a wide range of SSDs for laptops and desktop PCs. Product pages list capacity, interface, speeds, and TBW where available. Always check the current stock status and price before ordering. Nationwide delivery lets editors outside Dhaka order online safely and easily. Compare DRAM and DRAM-less models side by side before deciding.
