> But 64-bit is only viable if you buy the twice as expensive 8GB model and have use for the extra bandwidth. Benchmarks don't entirely agree: https://www.cnx-

> But 64-bit is only viable if you buy the twice as expensive 8GB model and have use for the extra bandwidth. Benchmarks don't entirely agree: https://www.cnx-software.com/2016/03/01/64-bit-arm-aarch64-instructions-boost-performance-by-15-to-30-compared-to-32-bit-arm-aarch32-instructions/ https://www.cnx-software.com/2016/03/01/64-bit-arm-aarch64-i... If the difference between AArch64 and AArch32 were simply larger pointers, I would probably agree, but AArch64 includes a number of instructions that can do more work, so 64-bit programs can actually run faster than their 32-bit equivalents, even if you're not using much RAM.