Lambda Memory-CPU Allocation
Memory (128 MB to 10,240 MB) is the single performance dial: CPU scales linearly with it, with a full vCPU at roughly 1,769 MB and up to 6 vCPUs at maximum. Billing is GB-seconds (memory times duration), so raising memory often lowers cost for CPU-bound code because duration falls faster than the rate rises; arm64 (Graviton) prices about 20% below x86.
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Memory (128 MB to 10,240 MB) is the single performance dial: CPU scales linearly with it, with a full vCPU at roughly 1,769 MB and up to 6 vCPUs at maximum. Billing is GB-seconds (memory times duration), so raising memory often lowers cost for CPU-bound code because duration falls faster than the rate rises; arm64 (Graviton) prices about 20% below x86.
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