Pick up to four instance types from one cloud and compare their specs, pricing, and cost efficiency in a single region. Looking for instances by vCPU or memory range instead? Browse by spec.
| memory-optimizedr8i-flex.16xlarge | memory-optimizedr8i-flex.12xlarge | |
|---|---|---|
| Compute | ||
| vCPUs | 64 | 48 |
| Memory | 512 GB | 384 GB |
| Memory per vCPU | 8.00 GB | 8.00 GB |
| Architecture | x86_64 | x86_64 |
| Processor | Intel | Intel |
| Family | r8i-flex | r8i-flex |
| Category | memory-optimized | memory-optimized |
| Price in us-east-1 | ||
| On-demand | $4.223$3082.82/mo | $3.167$2312.11/mo |
| Spot | $1.347$983.02/mo | $1.042$761.02/mo |
| Reserved 1-year | — | — |
| Reserved 3-year | — | — |
| Spot savings | 68% | 67% |
| Cost efficiency in us-east-1 | ||
| $ / vCPU / hr | $0.0660 | $0.0660 |
| $ / GB RAM / hr | $0.0082 | $0.0082 |
| Availability | ||
| Regions | 23 | 23 |
| Cheapest region | us-east-1 · $4.223 | us-east-1 · $3.167 |
| Cheapest spot region | ap-south-2 · $0.436 | ap-south-2 · $0.327 |
| Price snapshot | 2026-10-09 | 2026-10-09 |