AWS ElastiCache management console Create Cache page showing the engine selection step with three radio button options: Valkey with a green Recommended badge and a pricing note showing 20 percent lower cost than Redis OSS, Redis OSS showing the established engine description with full compatibility information, and Memcached showing the simple key-value caching description, with a pricing comparison panel on the right showing cache.r7g.xlarge on-demand rates of $0.350 per hour for Valkey and $0.437 per hour for Redis OSS in US East North Virginia as of 2026

What Is Amazon ElastiCache? The Complete 2026 Guide

Amazon ElastiCache is a fully managed in-memory data store service on AWS. It stores data in RAM rather than on disk, which is the fundamental reason it exists: reading 1 MB of ...
AWS RDS console Reserved Instances purchase page showing the Oracle BYOL offering for db.r7i.xlarge in US East North Virginia with the Multi-AZ and Single-AZ configuration displayed as flexible options under the same reservation, term selectors showing 1-year and 3-year options, payment type dropdown showing No Upfront selected with the effective hourly rate displayed, and a size flexibility note indicating the reservation applies to all sizes within the r7i family for Oracle BYOL workloads

RDS Oracle Reserved Instances: BYOL, License-Included and the Hidden Costs to Know First

Oracle is the most expensive engine on Amazon RDS. The License Included SE2 hourly rate on a db.r6i.large is approximately $0.70/hr — nearly three times the cost of the same instance running ...
Azure portal purchase interface showing a split comparison between Azure Savings Plans and Reserved Virtual Machine Instances: the left panel shows the Azure Savings Plan purchase form with a dollar per hour commitment field, a term selector showing 1-year and 3-year options, and a coverage scope indicator showing all Azure regions and all VM families, while the right panel shows the Reserved VM Instance form with dropdown selectors for specific VM family, instance size, Azure region, operating system, and payment option, illustrating that Savings Plans require only a spend commitment while Reserved Instances require specification of the exact VM configuration

Azure Savings Plan vs Reserved Instances: Which One Actually Saves More?

Both Azure Savings Plans and Reserved Instances reduce your Azure compute bill by committing to a term. Both require 1-year or 3-year commitments. Both apply discounts automatically without changing your infrastructure. The ...
Coverage tree diagram for a db.r8g.xlarge Single-AZ reserved instance showing 8 normalization units at the root branching into four equivalent coverage scenarios: one xlarge Single-AZ at 8 units showing 100 percent coverage, two large Single-AZ instances at 4 units each showing 100 percent total coverage, four medium Single-AZ instances at 2 units each showing 100 percent total coverage, one 2xlarge Single-AZ at 16 units showing 50 percent coverage with the remaining 50 percent at on-demand rates, and a separate cross-deployment section showing two large Single-AZ RIs at 4 plus 4 equals 8 units fully covering one large Multi-AZ instance which counts as 8 normalization units

RDS MySQL RI Size Flexibility: How Instance Normalization Saves You Money

Most guides explain that RDS MySQL reserved instances are size-flexible. Few explain exactly what that means in practice, and almost none explain the part that actually changes how you should buy them: ...
Amazon RDS console Reserved Instances purchase interface with engine selector set to PostgreSQL, instance class db.r8g.xlarge, Multi-AZ deployment type selected, 1-year term, Partial Upfront payment option, and a Reservation Details panel showing the amortized hourly rate of approximately $0.548 versus the on-demand rate of $0.840, with an estimated annual savings amount highlighted

RDS Reserved Instances: Engine-by-Engine Pricing and Commitment Guide

Every RDS instance running on-demand is paying the highest rate AWS offers for that database. RDS reserved instance pricing cuts that rate by 29% on the lowest 1-year commitment to 69% on ...