During testing, one thing caught us off-guard with the RTX 4090: it features ECC memory. At first, we thought the option in the driver could have been a bug, but not so. It enables just fine:
After pinging NVIDIA about this, we realized that the RTX 3090 Ti
also included ECC memory. We’re not entirely sure why the company decided to put ECC memory in a card focused on creator and gaming, but we suppose it’d be a nice feature for those who truly need it, and can score it on a GPU that’s not a more expensive workstation or Tesla card.
In quick tests, enabling ECC memory dropped the benchmarked bandwidth from 845 GB/s down to 742 GB/s. Comparatively, enabling ECC memory on the Quadro RTX 6000 dropped bandwidth from 513 GB/s to 433 GB/s.