3 ms·
With the trend for on-die RAM and the lower latencies that allows, it's not going to be possible to remove the RAM in the future.
by mlindner 5y ago
With the trend for on-die RAM and the lower latencies that allows, it's not going to be possible to remove the RAM in the future.
- wtallis 5y agoNobody is moving DRAM on-die. Apple puts DRAM on-package, and x86 laptops using LPDDRx solder it on the main board next to the soldered-down CPU/SoC. The advantage of doing so is not latency (which is still dominated by stuff that happens entirely within the DRAM die) but rather that LPDDR allows for lower power draw for the same bandwidth.
- Scoundreller 5y agoI’d think soldering down has some other benefits: 1) better heat conduction 2) more predictable RF/contact capacitance issues/characteristics
- bentcorner 5y agoI think that's a more-or-less acceptable compromise for now. Who knows, I wouldn't be surprised to see someone add on-board RAM back in to allow for cheaper expansion. Most operating systems support NUMA, this approach seems similar to that idea.