AWS sells two strategic commitment vehicles. The Enterprise Discount Program covers the catalog with a tiered discount. Savings Plans cover compute with a deeper but narrower discount. The right buyer side mix is both, not one.
The Enterprise Discount Program covers the AWS catalog at a tiered annual spend commit. Savings Plans cover compute at a tiered hourly commit. The two vehicles serve different purposes. The buyer side play layers them so each contributes to the savings stack at the right altitude.
This piece reads as a strategic decision framework. Use it with the Compute Savings Plans deep dive, the EDP renewal service page, the EDP discount tiers reference, and the SP versus RI piece.
The EDP versus SP question shows up at every enterprise FinOps review. The answer is rarely either or. The two vehicles operate at different layers of the AWS bill. The right comparison is layered, not binary.
The scope difference is the single most consequential element of the comparison. Each vehicle covers a different slice of the AWS bill. The intersection is where most savings sit.
| Service | EDP applies | Savings Plan applies |
|---|---|---|
| EC2 | Yes | Yes |
| Fargate | Yes | Yes |
| Lambda | Yes | Yes |
| RDS | Yes | No (RIs only) |
| S3 | Yes | No |
| CloudFront | Yes | No |
| AWS Marketplace | Partial via pass through | No |
| Professional Services | Sometimes | No |
The intersection between EDP and SP coverage sits on compute. The buyer side play is to cover the compute floor with SPs first, then let the EDP discount apply to the residual catalog and the uncovered compute. The math compounds, it does not collide.
The EDP discount is a percentage off the catalog. The SP discount is a percentage off compute on demand. The two compound when the SP fires first and the EDP applies to the net.
| Vehicle | 1 year | 3 year | 5 year |
|---|---|---|---|
| EDP at $25m annual commit | 10 to 14% | 16 to 22% | 19 to 25% |
| Compute SP all upfront | 32 to 36% | 62 to 66% | n/a |
| EC2 Instance SP all upfront | 38 to 42% | 67 to 72% | n/a |
| Layered EDP plus SP (effective) | n/a | 40 to 55% | 40 to 55% |
The commit shape is the other strategic difference. EDP commits annual USD over three to five years. SPs commit hourly USD over one to three years. The financial planning lens differs.
The right buyer side play layers both vehicles. Savings Plans cover the stable compute floor at 60 to 80 percent. The EDP applies to the catalog at the negotiated tier. Marketplace pass through fills the commit base.
The decision framework reads four signals. Stable compute share. Catalog spread. Marketplace third party portfolio. Cloud strategy horizon. Each signal pushes the mix one way or the other.
| Signal | If high | If low |
|---|---|---|
| Stable compute share | Heavier SP layer | Heavier EDP layer |
| Catalog spread | Heavier EDP layer | Heavier SP layer |
| Marketplace third party portfolio | Lean into EDP | Lean into SP |
| Cloud strategy horizon | Longer EDP term | Shorter EDP term, ladder SPs |
The eight step checklist below moves an AWS estate from a single vehicle posture to a layered, hybrid commitment stack. Open it 9 months before the EDP renewal anniversary.
Yes, but it leaves significant savings on the table. The EDP discount on compute sits at 10 to 20 percent. Savings Plan discounts reach 50 to 72 percent on three year terms. The layered approach combines both vehicles.
Yes, especially under $5 million annual spend where the EDP discount tier is modest. Pure Savings Plan strategies work for smaller AWS estates. Above $10 million annual spend the EDP starts to pay back through marketplace pass through, multi service catalog discount, and the strategic AWS relationship. Most enterprise estates above $25 million run both vehicles.
Savings Plan coverage applies before the EDP discount. Net usage after SP coverage is what counts toward the EDP commit. Model both layers when sizing the EDP commit, otherwise the customer overcommits and faces a shortfall risk.
Highly variable estates lean toward shorter Savings Plan terms or smaller hourly commits. A laddered approach with quarterly one year tranches absorbs variability better than a single three year all upfront commit. The EDP can still anchor the catalog discount because EDP commit handles annual variability through carry forward and true forward clauses.
EDP mid term renegotiation is rare and usually triggered by structural change such as M&A or workload migration. SPs are immutable, but a laddered portfolio creates renegotiation points every quarter as tranches expire. The combined effect is annual review on the SP layer and three to five year review on the EDP layer.
Negotiate the EDP framework first because it sets the catalog discount and the marketplace pass through. Then ladder the Savings Plans inside the EDP term. The sequence matters because the EDP discount applies to net usage after Savings Plan coverage. Starting with SPs first risks under sizing the EDP commit and missing the right tier.
Redress runs the AWS commitment review as a single engagement that covers EDP renewal, Savings Plan ladder, Reserved Instance portfolio, and AWS Marketplace strategy. The work pulls the spend curve across all services, models the layered stack, and represents the buyer through the AWS commercial cycle.
Read the related Vendor Shield, the Renewal Program, the Benchmark Program, the Software Spend Assessment, the Benchmarking framework, the about us page, the management team page, the locations page, and the contact page.
A buyer side framework for the next AWS Enterprise Discount Program renewal. Commit sizing, discount tier benchmarks, flexibility clauses, Savings Plan layering, marketplace pass through, Reserved Instance portfolios.
Used across five hundred plus enterprise software engagements. Independent. Buyer side. Built for AWS customers running EDP, Private Pricing Agreements, and layered commitment portfolios.
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Open the Paper →We layered Savings Plans on the compute floor, Reserved Instances on RDS, and an Enterprise Discount Program over the residual catalog. The combined effective discount landed at 47 percent across a $42 million annual run rate and the marketplace pass through absorbed the third party software pipeline.
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