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-optimizedr5b.12xlarge | memory-optimizedr5b.24xlarge | |
|---|---|---|
| Compute | ||
| vCPUs | 48 | 96 |
| Memory | 384 GB | 768 GB |
| Memory per vCPU | 8.00 GB | 8.00 GB |
| Architecture | x86_64 | x86_64 |
| Processor | Intel | Intel |
| Family | r5b | r5b |
| Category | memory-optimized | memory-optimized |
| Price in us-east-1 | ||
| On-demand | $3.576$2610.48/mo | $7.152$5220.96/mo |
| Spot | $1.243$907.17/mo | $2.747$2005.46/mo |
| Reserved 1-year | $2.46731% off on-demand | $4.93331% off on-demand |
| Reserved 3-year | $1.54457% off on-demand | $3.08957% off on-demand |
| Spot savings | 65% | 62% |
| Cost efficiency in us-east-1 | ||
| $ / vCPU / hr | $0.0745 | $0.0745 |
| $ / GB RAM / hr | $0.0093 | $0.0093 |
| Availability | ||
| Regions | 14 | 14 |
| Cheapest region | us-east-1 · $3.576 | us-east-1 · $7.152 |
| Cheapest spot region | eu-north-1 · $0.379 | eu-north-1 · $0.801 |
| Price snapshot | 2026-09-28 | 2026-09-28 |