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The '''amd64-piledriver''' subarch supports the [[Wikipedia:Piledriver (microarchitecture)|AMD Piledriver microarchitecture]] produced by AMD from mid-2012 through 2015, which is the successor to the [[Wikipedia:Bulldozer (microarchitecture)|AMD bulldozer microarchitecture]].
Piledriver adds several new instructions over bulldozer, so AMD bulldozer systems cannot run amd64-piledriver-optimized stages. However, subarch is instruction-compatible with its successor, the [[Wikipedia:Steamroller (microarchitecture)|AMD steamroller microarchitecture]], so amd64-piledriver stages can run on amd64-steamroller systems, and vice versa.
Piledriver CPUs and APUs are available that use the [[Wikipedia:FM2 Socket|FM2 socket]]. Piledriver CPUs use the [[Wikipedia:Socket_AM3+|AM3+ socket]].