List of AMD FX microprocessors - Wikipedia
These processors were the first AMD CPUs to use the "FX" designation and identified the chip as being higher-performance. The frequency multiplier was unlocked in these chips. See the comprehensive List of AMD Athlon 64 microprocessors. SledgeHammer Core (130 nm) L1 cache: 64 kb + 64 kb (data + instruction) L2 cache: 1024 kb (full speed)