AWS m7i & m7i-flex Performance/Price
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Compute Virtual-Machine Performance Price
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Amazon recently released its new series of Intel general purpose VMs, the m7i. Featured with the 4th generation of Xeon chips, the successors of m6i are declined in two lines: The basic m7i and more questionable one called m7i-flex.
From their documentation, it's quite difficult to understand the benefits of flex vs classic instances. AWS claims up to +19% in price/performance from M6i to M7i-flex but except a slight smaller price and limited resources capacity, no transparency helps consumer to understand where's the best band for their buck.
Below, a quick on-paper comparison:
| Name | Max CPU | Max RAM (GiB) | Max bandwidth (Gbps) | Max EBS (Gbps) | Hourly 32 CPUs (USD) |
|---|---|---|---|---|---|
| M7i | 192 | 768 | 50 | 40 | 1.613 |
| M7i-flex | 32 | 128 | 12.5 | 10 | 1.532 |
| M6i | 128 | 512 | 50 | 40 | 1.536 |
Pricing from "US East (Ohio)" during Aug 2023
This study aims to evaluate the performance and price/performance value of these new flavors.