A brief overview of IBM’s new 7 nm Telum mainframe CPU

Each Telum package consists of two 7nm, eight-core / sixteen-thread processors running at a <em>base</em> clock speed above 5GHz. A typical system will have sixteen of these chips in total, arranged in four-socket "drawers."

Enlarge / Each Telum package consists of two 7nm, eight-core / sixteen-thread processors running at a base clock speed above 5GHz. A typical system will have sixteen of these chips in total, arranged in four-socket “drawers.” (credit: IBM)

piece focused on the Telum’s redesigned cache, “downtime of these [IBM Z] systems is measured in milliseconds per year.” (If true, that’s at least seven nines.)

IBM’s own announcement of the Telum hints at just how different mainframe and commodity computing’s priorities are. It casually describes Telum’s memory interface as “capable of tolerating complete channel or DIMM failures, and designed to transparently recover data without impact to response time.”

Read 16 remaining paragraphs | Comments