Today OCZ Technology released a firmware update for Vector. The new firmware, version 2.0, is available through OCZ's Toolbox and is a mass production release (not beta). At the time of writing the release notes weren't available but Alan, a long time TweakTown reader provided the benchmarks below from a system in steady state with the Vector 512GB used as a boot drive.
He states that "IOPS are great" and "the performance has definitely increased, you will want to run this against the Samsung 840 Pro and maybe reevaluate which is drive is faster in all capacity sizes."
You can find the thread discussing the new update on OCZ's Forums. Firmware update instructions are located here. Do note that C-States were enabled in this tests. We'll have a full article with all three Vector capacity sizes updated in a few days here on TweakTown.