Memory optimized AWS RDS sizes
AWS RDS has 177 memory optimized sizes in US East (N. Virginia), across 27 families. The cheapest is db.r7g.large at $0.239 per hour on demand (2 vCPUs, 16 GiB).
Prices in US East (N. Virginia), cheapest first
| Type | Family | vCPUs | Memory (GiB) | Tier | On-demand /hr | 1-yr reserved /hr |
|---|---|---|---|---|---|---|
| db.r7g.large | r7g | 2 | 16 | $0.239 | $0.1841 | |
| db.r8g.large | r8g | 2 | 16 | $0.239 | $0.16 | |
| db.r3.large | r3 | 2 | 15.25 | $0.25 | – | |
| db.r4.large | r4 | 2 | 15.25 | $0.25 | – | |
| db.r5.large | r5 | 2 | 16 | $0.25 | $0.1444 | |
| db.r6i.large | r6i | 2 | 16 | $0.25 | $0.1444 | |
| db.r6gd.large | r6gd | 2 | 16 | $0.257 | $0.198 | |
| db.r8i.large | r8i | 2 | 16 | Oracle Enterprise BYOL | $0.26 | $0.1742 |
| db.r8gd.large | r8gd | 2 | 16 | $0.273 | – | |
| db.r5d.large | r5d | 2 | 16 | $0.286 | $0.22 | |
| db.r5b.large | r5b | 2 | 16 | $0.296 | $0.1714 | |
| db.r6id.large | r6id | 2 | 16 | $0.298 | $0.2296 | |
| db.x2g.large | x2g | 2 | 32 | $0.326 | $0.1891 | |
| db.z1d.large | z1d | 2 | 16 | Oracle Enterprise BYOL | $0.342 | $0.2334 |
| db.m2.xlarge | m2 | 2 | 17.1 | $0.345 | – | |
| db.r6in.large | r6in | 2 | 16 | $0.346 | $0.2663 | |
| db.r6idn.large | r6idn | 2 | 16 | $0.388 | $0.2985 | |
| db.m8gd.xlarge | m8gd | 4 | 16 | $0.3952 | – | |
| db.r6g.xlarge | r6g | 4 | 32 | $0.45 | $0.2597 | |
| db.r5.large.tpc1.mem2x | r5 | 2 | 32 | Oracle Enterprise BYOL | $0.466 | $0.2695 |
| db.r5.xlarge | r5 | 4 | 32 | $0.5 | $0.2888 | |
| db.r6i.xlarge | r6i | 4 | 32 | $0.5 | $0.2888 | |
| db.r7i.xlarge | r7i | 4 | 32 | $0.5 | $0.335 | |
| db.r6gd.xlarge | r6gd | 4 | 32 | $0.514 | $0.396 | |
| db.r8i.xlarge | r8i | 4 | 32 | Oracle Enterprise BYOL | $0.53 | $0.3551 |
| db.r5b.large.tpc1.mem2x | r5b | 2 | 32 | Oracle Enterprise BYOL | $0.551 | – |
| db.r5d.xlarge | r5d | 4 | 32 | $0.571 | $0.44 | |
| db.r5b.xlarge | r5b | 4 | 32 | $0.592 | $0.3429 | |
| db.x2g.xlarge | x2g | 4 | 64 | $0.652 | $0.3782 | |
| db.r6in.xlarge | r6in | 4 | 32 | $0.692 | $0.5327 | |
| db.r6idn.xlarge | r6idn | 4 | 32 | $0.775 | $0.597 | |
| db.m8gd.2xlarge | m8gd | 8 | 32 | $0.7904 | – | |
| db.r6g.2xlarge | r6g | 8 | 64 | $0.899 | $0.5194 | |
| db.r7g.2xlarge | r7g | 8 | 64 | $0.956 | $0.7363 | |
| db.r7i.2xlarge | r7i | 4 | 64 | $1.00 | $0.67 | |
| db.r7i.xlarge.tpc2.mem2x | r7i | 4 | 64 | Oracle Enterprise BYOL | $1.00 | $0.67 |
| db.r6gd.2xlarge | r6gd | 8 | 64 | $1.029 | $0.792 | |
| db.r8i.2xlarge | r8i | 4 | 64 | Oracle Enterprise BYOL | $1.05 | $0.7035 |
| db.r8gd.2xlarge | r8gd | 8 | 64 | $1.092 | – | |
| db.r5d.2xlarge | r5d | 8 | 64 | $1.143 | $0.88 | |
| db.r5b.2xlarge | r5b | 8 | 64 | $1.184 | $0.6858 | |
| db.r6id.2xlarge | r6id | 8 | 64 | $1.193 | $0.9185 | |
| db.r8a.2xlarge | r8a | 4 | 64 | $1.208 | – | |
| db.x2g.2xlarge | x2g | 8 | 128 | $1.304 | $0.7563 | |
| db.z1d.2xlarge | z1d | 8 | 64 | Oracle Enterprise BYOL | $1.368 | $0.9337 |
| db.r6in.2xlarge | r6in | 8 | 64 | $1.384 | $1.065 | |
| db.m2.4xlarge | m2 | 8 | 68.4 | $1.39 | – | |
| db.r6idn.2xlarge | r6idn | 8 | 64 | $1.551 | $1.194 | |
| db.m8gd.4xlarge | m8gd | 16 | 64 | $1.581 | – | |
| db.r6g.4xlarge | r6g | 16 | 128 | $1.798 | $1.039 | |
| db.r5.2xlarge.tpc1.mem2x | r5 | 8 | 128 | Oracle Enterprise BYOL | $1.864 | $1.078 |
| db.r5.xlarge.tpc2.mem4x | r5 | 4 | 128 | Oracle Enterprise BYOL | $1.864 | $1.078 |
| db.r6i.2xlarge.tpc1.mem2x | r6i | 8 | 128 | Oracle Enterprise BYOL | $1.864 | $1.342 |
| db.r6i.xlarge.tpc2.mem4x | r6i | 4 | 128 | Oracle Enterprise BYOL | $1.864 | $1.342 |
| db.x2m.xlarge | x2m | 4 | 128 | SQL Server Enterprise | $1.902 | – |
| db.r8g.4xlarge | r8g | 16 | 128 | $1.912 | $1.281 | |
| db.r7g.4xlarge | r7g | 16 | 128 | $1.913 | $1.473 | |
| db.r3.4xlarge | r3 | 16 | 122 | $1.99 | – | |
| db.r5.4xlarge | r5 | 16 | 128 | $2.00 | $1.155 | |
| db.r7i.xlarge.tpc2.mem4x | r7i | 4 | 128 | Oracle Enterprise BYOL | $2.00 | $1.34 |
| db.z1d.3xlarge | z1d | 12 | 96 | Oracle Enterprise BYOL | $2.052 | $1.401 |
| db.r6gd.4xlarge | r6gd | 16 | 128 | $2.057 | $1.584 | |
| db.r8gd.4xlarge | r8gd | 16 | 128 | $2.184 | – | |
| db.r5b.2xlarge.tpc1.mem2x | r5b | 8 | 128 | Oracle Enterprise BYOL | $2.205 | – |
| db.r5d.4xlarge | r5d | 16 | 128 | $2.286 | $1.76 | |
| db.r5b.4xlarge | r5b | 16 | 128 | $2.368 | $1.372 | |
| db.r6id.4xlarge | r6id | 16 | 128 | $2.386 | $1.837 | |
| db.r8a.4xlarge | r8a | 8 | 128 | $2.415 | – | |
| db.x1e.2xlarge | x1e | 8 | 244 | Oracle Enterprise BYOL | $2.802 | – |
| db.x2iezn.2xlarge | x2iezn | 8 | 256 | Oracle Enterprise BYOL | $3.036 | $2.186 |
| db.r6g.8xlarge | r6g | 32 | 256 | $3.597 | $2.078 | |
| db.r5.4xlarge.tpc2.mem2x | r5 | 16 | 256 | Oracle Enterprise BYOL | $3.728 | $2.156 |
| db.r6i.2xlarge.tpc2.mem4x | r6i | 8 | 256 | Oracle Enterprise BYOL | $3.728 | $2.684 |
| db.r6i.4xlarge.tpc2.mem2x | r6i | 16 | 256 | Oracle Enterprise BYOL | $3.728 | $2.684 |
| db.r8g.8xlarge | r8g | 32 | 256 | $3.824 | $2.562 | |
| db.r7g.8xlarge | r7g | 32 | 256 | $3.825 | $2.945 | |
| db.r4.8xlarge | r4 | 32 | 244 | $4.00 | – | |
| db.r5.8xlarge | r5 | 32 | 256 | $4.00 | $2.31 | |
| db.r6i.8xlarge | r6i | 32 | 256 | $4.00 | $2.31 | |
| db.r7i.2xlarge.tpc2.mem4x | r7i | 8 | 256 | Oracle Enterprise BYOL | $4.00 | $2.68 |
| db.r7i.4xlarge.tpc2.mem2x | r7i | 16 | 256 | Oracle Enterprise BYOL | $4.00 | $2.68 |
| db.r7i.8xlarge | r7i | 32 | 256 | $4.00 | $2.68 | |
| db.z1d.6xlarge | z1d | 24 | 192 | Oracle Enterprise BYOL | $4.104 | $2.801 |
| db.r6gd.8xlarge | r6gd | 32 | 256 | $4.114 | $3.168 | |
| db.r5b.2xlarge.tpc2.mem4x | r5b | 8 | 256 | Oracle Enterprise BYOL | $4.41 | – |
| db.r5b.4xlarge.tpc2.mem2x | r5b | 16 | 256 | Oracle Enterprise BYOL | $4.41 | – |
| db.r5d.8xlarge | r5d | 32 | 256 | $4.571 | $3.52 | |
| db.r5b.8xlarge | r5b | 32 | 256 | $4.736 | $2.743 | |
| db.m8gd.12xlarge | m8gd | 48 | 192 | $4.742 | – | |
| db.r6id.8xlarge | r6id | 32 | 256 | $4.771 | $3.674 | |
| db.r8a.8xlarge | r8a | 16 | 256 | $4.83 | – | |
| db.r6g.12xlarge | r6g | 48 | 384 | $5.395 | $3.116 | |
| db.r6in.8xlarge | r6in | 32 | 256 | $5.534 | $4.261 | |
| db.r5.4xlarge.tpc2.mem3x | r5 | 16 | 384 | Oracle Enterprise BYOL | $5.592 | $3.235 |
| db.r6i.4xlarge.tpc2.mem3x | r6i | 16 | 384 | Oracle Enterprise BYOL | $5.592 | $4.026 |
| db.x1e.4xlarge | x1e | 16 | 488 | Oracle Enterprise BYOL | $5.604 | – |
| db.r8g.12xlarge | r8g | 48 | 384 | $5.736 | $3.843 | |
| db.r7g.12xlarge | r7g | 48 | 384 | $5.738 | $4.418 | |
| db.r5.12xlarge | r5 | 48 | 384 | $6.00 | $3.465 | |
| db.r6i.12xlarge | r6i | 48 | 384 | $6.00 | $3.466 | |
| db.r7i.4xlarge.tpc2.mem3x | r7i | 16 | 384 | Oracle Enterprise BYOL | $6.00 | $4.02 |
| db.r6gd.12xlarge | r6gd | 48 | 384 | $6.171 | $4.752 | |
| db.r8i.12xlarge | r8i | 24 | 384 | Oracle Enterprise BYOL | $6.30 | $4.221 |
| db.m8gd.16xlarge | m8gd | 64 | 256 | $6.323 | – | |
| db.r8gd.12xlarge | r8gd | 48 | 384 | $6.552 | – | |
| db.r5b.4xlarge.tpc2.mem3x | r5b | 16 | 384 | Oracle Enterprise BYOL | $6.615 | – |
| db.r5d.12xlarge | r5d | 48 | 384 | $6.857 | $5.28 | |
| db.r5b.12xlarge | r5b | 48 | 384 | $7.104 | $4.115 | |
| db.r6id.12xlarge | r6id | 48 | 384 | $7.157 | $5.511 | |
| db.r6g.16xlarge | r6g | 64 | 512 | $7.194 | $4.155 | |
| db.r8a.12xlarge | r8a | 48 | 384 | $7.246 | – | |
| db.r5.2xlarge.tpc2.mem8x | r5 | 8 | 512 | Oracle Enterprise BYOL | $7.456 | $4.313 |
| db.r5.4xlarge.tpc2.mem4x | r5 | 16 | 512 | Oracle Enterprise BYOL | $7.456 | $4.313 |
| db.r6i.4xlarge.tpc2.mem4x | r6i | 16 | 512 | Oracle Enterprise BYOL | $7.456 | $5.368 |
| db.x2iedn.4xlarge | x2iedn | 16 | 512 | $7.608 | – | |
| db.x2m.4xlarge | x2m | 8 | 512 | SQL Server Enterprise | $7.608 | – |
| db.r8g.16xlarge | r8g | 64 | 512 | $7.648 | $5.124 | |
| db.r4.16xlarge | r4 | 64 | 488 | $8.00 | – | |
| db.r5.16xlarge | r5 | 64 | 512 | $8.00 | $4.62 | |
| db.r6i.16xlarge | r6i | 64 | 512 | $8.00 | $4.621 | |
| db.r7i.16xlarge | r7i | 64 | 512 | $8.00 | $5.36 | |
| db.z1d.12xlarge | z1d | 48 | 384 | Oracle Enterprise BYOL | $8.208 | $5.602 |
| db.r6in.12xlarge | r6in | 48 | 384 | $8.302 | $6.392 | |
| db.r8i.16xlarge | r8i | 32 | 512 | Oracle Enterprise BYOL | $8.40 | $5.628 |
| db.r8gd.16xlarge | r8gd | 64 | 512 | $8.736 | – | |
| db.r5b.4xlarge.tpc2.mem4x | r5b | 16 | 512 | Oracle Enterprise BYOL | $8.821 | – |
| db.r7i.metal-24xl | r7i | 96 | 768 | Oracle Enterprise BYOL | $9.00 | – |
| db.x2iezn.6xlarge | x2iezn | 24 | 768 | Oracle Enterprise BYOL | $9.107 | $6.558 |
| db.r5d.16xlarge | r5d | 64 | 512 | $9.143 | $7.04 | |
| db.r6idn.12xlarge | r6idn | 48 | 384 | $9.304 | $7.164 | |
| db.r5b.16xlarge | r5b | 64 | 512 | $9.472 | $5.486 | |
| db.m8gd.24xlarge | m8gd | 96 | 384 | $9.485 | – | |
| db.r6id.16xlarge | r6id | 64 | 512 | $9.543 | $7.348 | |
| db.r8a.16xlarge | r8a | 64 | 512 | $9.661 | – | |
| db.x2g.16xlarge | x2g | 64 | 1024 | $10.432 | $6.051 | |
| db.r5.8xlarge.tpc2.mem3x | r5 | 32 | 768 | Oracle Enterprise BYOL | $11.184 | $6.469 |
| db.r5.12xlarge.tpc2.mem2x | r5 | 48 | 768 | Oracle Enterprise BYOL | $11.184 | $6.469 |
| db.r6i.6xlarge.tpc2.mem4x | r6i | 24 | 768 | Oracle Enterprise BYOL | $11.184 | $8.053 |
| db.r6i.metal | r6i | 128 | 1024 | Oracle Enterprise BYOL | $11.184 | – |
| db.x1e.8xlarge | x1e | 32 | 976 | Oracle Enterprise BYOL | $11.209 | – |
| db.r5.24xlarge | r5 | 96 | 768 | $12.00 | $6.93 | |
| db.r6i.24xlarge | r6i | 96 | 768 | $12.00 | $6.931 | |
| db.r7i.6xlarge.tpc2.mem4x | r7i | 24 | 768 | Oracle Enterprise BYOL | $12.00 | $8.04 |
| db.r7i.8xlarge.tpc2.mem3x | r7i | 32 | 768 | Oracle Enterprise BYOL | $12.00 | $8.04 |
| db.r7i.24xlarge | r7i | 96 | 768 | $12.00 | $8.04 | |
| db.x2iezn.8xlarge | x2iezn | 32 | 1024 | Oracle Enterprise BYOL | $12.143 | $8.744 |
| db.r8gd.24xlarge | r8gd | 96 | 768 | $13.104 | – | |
| db.r5b.6xlarge.tpc2.mem4x | r5b | 24 | 768 | Oracle Enterprise BYOL | $13.231 | – |
| db.r5b.24xlarge | r5b | 96 | 768 | $14.208 | $8.229 | |
| db.r6id.24xlarge | r6id | 96 | 768 | $14.314 | $11.022 | |
| db.r8a.24xlarge | r8a | 96 | 768 | $14.491 | – | |
| db.r6i.8xlarge.tpc2.mem4x | r6i | 32 | 1024 | Oracle Enterprise BYOL | $14.912 | $10.737 |
| db.x2iedn.8xlarge | x2iedn | 32 | 1024 | $15.216 | – | |
| db.r6in.24xlarge | r6in | 96 | 768 | $16.603 | $12.784 | |
| db.r8i.32xlarge | r8i | 64 | 1024 | Oracle Enterprise BYOL | $16.80 | $11.256 |
| db.x2idn.metal | x2idn | 128 | 2048 | Oracle Enterprise BYOL | $16.80 | – |
| db.r7i.metal-48xl | r7i | 192 | 1536 | Oracle Enterprise BYOL | $18.00 | – |
| db.x2iezn.12xlarge | x2iezn | 48 | 1536 | Oracle Enterprise BYOL | $18.215 | $13.116 |
| db.r6idn.24xlarge | r6idn | 96 | 768 | $18.608 | $14.328 | |
| db.r8i.metal-48xl | r8i | 192 | 1536 | Oracle Enterprise BYOL | $18.90 | – |
| db.m8gd.48xlarge | m8gd | 192 | 768 | $18.97 | – | |
| db.r6id.32xlarge | r6id | 128 | 1024 | $19.086 | $14.696 | |
| db.x1.32xlarge | x1 | 128 | 1952 | Oracle Enterprise BYOL | $22.40 | – |
| db.x2idn.32xlarge | x2idn | 128 | 2048 | Oracle Enterprise BYOL | $22.40 | $16.128 |
| db.r8g.48xlarge | r8g | 192 | 1536 | $22.944 | $15.372 | |
| db.r6idn.32xlarge | r6idn | 128 | 1024 | $24.81 | $19.104 | |
| db.r8gd.48xlarge | r8gd | 192 | 1536 | $26.208 | – | |
| db.r8a.48xlarge | r8a | 192 | 1536 | $28.982 | – | |
| db.x2iedn.16xlarge | x2iedn | 64 | 2048 | $30.432 | – | |
| db.x2m.16xlarge | x2m | 32 | 2048 | SQL Server Enterprise | $30.432 | – |
| db.r8i.metal-96xl | r8i | 384 | 3072 | Oracle Enterprise BYOL | $37.801 | – |
| db.x1e.32xlarge | x1e | 128 | 3904 | Oracle Enterprise BYOL | $44.836 | – |
| db.x2iedn.metal | x2iedn | 128 | 4096 | Oracle Enterprise BYOL | $45.648 | – |
| db.x2m.24xlarge | x2m | 48 | 3072 | SQL Server Enterprise | $45.648 | – |
| db.r8i.96xlarge | r8i | 192 | 3072 | SQL Server Enterprise | $48.00 | – |
| db.x2iedn.32xlarge | x2iedn | 128 | 4096 | $60.864 | – | |
| db.x2m.32xlarge | x2m | 64 | 4096 | SQL Server Enterprise | $60.864 | – |
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Prices in USD per hour for PostgreSQL, Single-AZ; reserved prices are 1 year, no upfront. Updated 2026-11-12 from AWS public price lists. Compare all AWS RDS sizes.