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Original AMD Athlon 64 core. This was found on both the Socket 754 and Socket 939 interfaces. The Clawhammer core featured 1 MB of L2 cache and ran a 800MHz Hypertransport bus. Furthermore, the Clawhammer was based on the 130nm manufacturing process. These processors ran roughly 20 - 30% faster than the Athlon XP Bartons at the same clock frequency.

Do not confuse the Clawhammer with the newer Newcastle core which is also on the Socket 754/939 but features only 512KB of L2 cache. The Clawhammer core was the original Athlon 64 and is the core for the Athlon FX series (53, 55).
Today I bought a Athlon 64 based on the Clawhammer core and it ripped apart the Intel Pentium 4 in all benchmarks.
by dmo April 24, 2005
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When your partner falls asleep, you clinch your buttcheek over their nose untill their mouth opens. Then you drop your cock in their mouth.
Robert went to sleep, so I gave him the claw hammer.
by Chris656 April 20, 2008
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Someone that has little or no experience or skills in activities, actions, etc.
God, that clawhammer couldn't hit the broadside of a barn if his life depended on it.
by Un4given April 19, 2003
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WoW that guy has a big clawhammer

Damn he could satisfy a blue whale with that clawhammer.
by clawhammer April 16, 2003
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