Power Value Index (PVI)
This site's independently developed 0-100 composite score ranking IBM Power8 through Power11 on performance, capacity, remaining useful life, software economics, market price, and value retention.
The PVI is not an IBM-published metric. It is a transparent, sourced weighting model built to answer "what is this generation actually worth," not just "what does it do." See the Power Value Index page for the full methodology, weights, and per-generation scores.
Related Terms
Remaining Useful Life (RUL)
The years of standard IBM support remaining on a given Power generation, expressed as a share of its typical full lifecycle.
Value Retention
How well a Power generation holds resale value on the active secondary market relative to its original cost.
Cost per CPW
Acquisition or ownership cost divided by CPW capacity delivered -- the core cost-efficiency measure used across this site's Market Price analysis.
Total Cost of Ownership (TCO)
The full multi-year cost of running a system: acquisition, hardware maintenance, software licensing, and services, combined.