m8idb.12xlargevsr8idb.12xlarge
m8idb.12xlarge is 19% cheaper than r8idb.12xlarge on demand in US East (N. Virginia), saving $762.63 a month.
| At a glance | m8idb.12xlarge | r8idb.12xlarge |
|---|---|---|
| On-demand | $4.583/hr19% less | $5.627/hr |
| Lowest rate | $2.049/hr22% less3-yr savings plan, hourly commitment | $2.631/hr3-yr savings plan, hourly commitment |
| Size | 48 vCPUs, 192 GiB | 48 vCPUs, 384 GiB |
| Processor | Intel Xeon Scalable (Granite Rapids) | Intel Xeon Scalable (Granite Rapids) |
| Architecture | x86_64 | x86_64 |
Prices in US East (N. Virginia)
“Off” is the discount against each type’s own on-demand price. Linux, USD per hour.
| Option | m8idb.12xlarge | r8idb.12xlarge | r8idb.12xlarge vs m8idb.12xlarge |
|---|---|---|---|
| On-demandPay by the hour | $4.583 | $5.627 | ▲ 23% |
| SpotCan be interrupted | 53% off$2.143 | 42% off$3.243 | ▲ 51% |
| 1-yr savings planHourly commitment | 27% off$3.349 | 28% off$4.077 | ▲ 22% |
| 3-yr savings planHourly commitment | 55% off$2.049 | 53% off$2.631 | ▲ 28% |
Key differences
The biggest lead each one has.
Where m8idb.12xlarge leads
On-demand price$4.583 vs $5.627 per hour
19% cheaperWhere r8idb.12xlarge leads
Memory (GiB)384 vs 192
2× higherSpecs
3 of 41 specs differ. Those are in bold.
| ComputeAll 10 match | m8idb.12xlarge | r8idb.12xlarge |
|---|---|---|
| vCPUs | 48 | 48 |
| Physical cores | 24 | 24 |
| Threads per core | 2 | 2 |
| Architecture | x86_64 | x86_64 |
| Processor | Intel Xeon Scalable (Granite Rapids) | Intel Xeon Scalable (Granite Rapids) |
| CPU maker | Intel | Intel |
| Clock speed | 3.9 GHz | 3.9 GHz |
| Sustained clock | 3.9 GHz | 3.9 GHz |
| Processor features | Intel AVX; Intel AVX2; Intel AVX512; Intel Turbo; Intel AMX | Intel AVX; Intel AVX2; Intel AVX512; Intel Turbo; Intel AMX |
| Burstable | No | No |
| Memory1 of 1 differ | m8idb.12xlarge | r8idb.12xlarge |
|---|---|---|
| Memory (GiB) | 192 | 384 |
| NetworkingAll 8 match | m8idb.12xlarge | r8idb.12xlarge |
|---|---|---|
| Network | 50 Gigabit | 50 Gigabit |
| Network baseline | 50 Gbps | 50 Gbps |
| Network peak | 50 Gbps | 50 Gbps |
| Enhanced networking | Yes (ENA) | Yes (ENA) |
| EFA | No | No |
| IPv6 | Yes | Yes |
| Max network interfaces | 12 | 12 |
| IPv4 addresses per interface | 50 | 50 |
| StorageAll 12 match | m8idb.12xlarge | r8idb.12xlarge |
|---|---|---|
| Storage | 1 x 2850 NVMe SSD | 1 x 2850 NVMe SSD |
| Local disks | 1 × 2,850 GB SSD | 1 × 2,850 GB SSD |
| EBS optimized | Yes | Yes |
| EBS over NVMe | Required | Required |
| EBS throughput | 37500 Mbps | 37500 Mbps |
| EBS baseline bandwidth | 37,500 Mbps | 37,500 Mbps |
| EBS max bandwidth | 37,500 Mbps | 37,500 Mbps |
| EBS baseline throughput | 4,687.5 MB/s | 4,687.5 MB/s |
| EBS max throughput | 4,687.5 MB/s | 4,687.5 MB/s |
| EBS baseline IOPS | 180,000 | 180,000 |
| EBS max IOPS | 180,000 | 180,000 |
| Max EBS volumes | 32 | 32 |
| Instance details2 of 10 differ | m8idb.12xlarge | r8idb.12xlarge |
|---|---|---|
| Family | m8idb | r8idb |
| Category | General purpose | Memory optimized |
| Current generation | Yes | Yes |
| Normalization factor | 96 | 96 |
| Bare metal | No | No |
| Hypervisor | Nitro | Nitro |
| Placement groups | Cluster, Partition, Spread | Cluster, Partition, Spread |
| Hibernation | No | No |
| Nitro Enclaves | Yes | Yes |
| Boot modes | Legacy BIOS, UEFI | Legacy BIOS, UEFI |
On-demand prices by region
Cheapest for m8idb.12xlarge first. Linux, USD per hour.
| Region | m8idb.12xlarge | r8idb.12xlarge | Difference |
|---|---|---|---|
| US East (N. Virginia)Used in summaryus-east-1 | $4.583 | $5.627 | ▲ 23% |
| US East (Ohio)us-east-2 | $4.583 | $5.627 | ▲ 23% |
| US West (Oregon)us-west-2 | $4.583 | $5.627 | ▲ 23% |
| Europe (Spain)eu-south-2 | $5.016 | $6.267 | ▲ 25% |
| EU (Ireland)eu-west-1 | $5.122 | $6.267 | ▲ 22% |
| Asia Pacific (Tokyo)ap-northeast-1 | $5.897 | $6.84 | ▲ 16% |
Keep exploring
Each type’s own page, and how it compares with others.
m8idb.12xlarge
m8idb.12xlarge prices and specsEvery size in the m8idb familyCompare m8idb.12xlarge with
r8idb.12xlarge
r8idb.12xlarge prices and specsEvery size in the r8idb familyCompare r8idb.12xlarge with
AWS EC2 Linux prices in USD. Monthly figures use 730 hours. Prices last updated 12 Nov 2026.