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Arm's Neoverse V2, in AWS's Graviton 4
Amazon Web Services (AWS) is the largest cloud provider, and an early Arm server adopter. AWS started investing into the Arm server ecosystem in 2018 with Graviton 1, which used 16 Cortex A72 cores…
L1i misses are tracked by a 16 entry fill buffer, which gives Neoverse V2 enough memory level parallelism to sustain 4 instructions per cycle when running code from L2. AMD’s overbuilt branch predictor really proves its worth in 7-Zip, where a less than 1% difference in prediction accuracy translates to Zen 4 suffering 17.9% fewer mispredicts per instruction. Instead, it seeks to deliver adequate single threaded performance in a power limited smartphone SoC, or a high density server CPU.
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