m8a.4xlargevsr8a.4xlarge
m8a.4xlarge is 24% cheaper than r8a.4xlarge on demand in US East (N. Virginia), saving $222.14 a month.
| At a glance | m8a.4xlarge | r8a.4xlarge |
|---|---|---|
| On-demand | $0.9738/hr24% less | $1.278/hr |
| Lowest rate | $0.2925/hr13% lessSpot, can be interrupted | $0.3356/hrSpot, can be interrupted |
| Size | 16 vCPUs, 64 GiB | 16 vCPUs, 128 GiB |
| Processor | AMD EPYC 9R45 Processor | AMD EPYC 9R45 Processor |
| 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 | m8a.4xlarge | r8a.4xlarge | r8a.4xlarge vs m8a.4xlarge |
|---|---|---|---|
| On-demandPay by the hour | $0.9738 | $1.278 | ▲ 31% |
| SpotCan be interrupted | 70% off$0.2925 | 74% off$0.3356 | ▲ 15% |
| 1-yr savings planHourly commitment | 27% off$0.7154 | 28% off$0.926 | ▲ 29% |
| 3-yr savings planHourly commitment | 49% off$0.4938 | 48% off$0.6667 | ▲ 35% |
Key differences
The biggest lead each one has.
Where m8a.4xlarge leads
On-demand price$0.9738 vs $1.278 per hour
24% cheaperWhere r8a.4xlarge leads
Memory (GiB)128 vs 64
2× higherSpecs
3 of 40 specs differ. Those are in bold.
| ComputeAll 10 match | m8a.4xlarge | r8a.4xlarge |
|---|---|---|
| vCPUs | 16 | 16 |
| Physical cores | 16 | 16 |
| Threads per core | 1 | 1 |
| Architecture | x86_64 | x86_64 |
| Processor | AMD EPYC 9R45 Processor | AMD EPYC 9R45 Processor |
| CPU maker | AMD | AMD |
| Clock speed | Up to 4.5 GHz | Up to 4.5 GHz |
| Sustained clock | 4.5 GHz | 4.5 GHz |
| Processor features | AMD Turbo; AVX; AVX2; AVX512 | AMD Turbo; AVX; AVX2; AVX512 |
| Burstable | No | No |
| Memory1 of 1 differ | m8a.4xlarge | r8a.4xlarge |
|---|---|---|
| Memory (GiB) | 64 | 128 |
| NetworkingAll 8 match | m8a.4xlarge | r8a.4xlarge |
|---|---|---|
| Network | Up to 15000 Megabit | Up to 15000 Megabit |
| Network baseline | 7.5 Gbps | 7.5 Gbps |
| Network peak | 15 Gbps | 15 Gbps |
| Enhanced networking | Yes (ENA) | Yes (ENA) |
| EFA | No | No |
| IPv6 | Yes | Yes |
| Max network interfaces | 8 | 8 |
| IPv4 addresses per interface | 40 | 40 |
| StorageAll 11 match | m8a.4xlarge | r8a.4xlarge |
|---|---|---|
| Storage | EBS only | EBS only |
| EBS optimized | Yes | Yes |
| EBS over NVMe | Required | Required |
| EBS throughput | Up to 10000 Mbps | Up to 10000 Mbps |
| EBS baseline bandwidth | 5,000 Mbps | 5,000 Mbps |
| EBS max bandwidth | 10,000 Mbps | 10,000 Mbps |
| EBS baseline throughput | 625 MB/s | 625 MB/s |
| EBS max throughput | 1,250 MB/s | 1,250 MB/s |
| EBS baseline IOPS | 20,000 | 20,000 |
| EBS max IOPS | 40,000 | 40,000 |
| Max EBS volumes | 32 | 32 |
| Instance details2 of 10 differ | m8a.4xlarge | r8a.4xlarge |
|---|---|---|
| Family | m8a | r8a |
| Category | General purpose | Memory optimized |
| Current generation | Yes | Yes |
| Normalization factor | 32 | 32 |
| Bare metal | No | No |
| Hypervisor | Nitro | Nitro |
| Placement groups | Cluster, Partition, Spread | Cluster, Partition, Spread |
| Hibernation | Yes | Yes |
| Nitro Enclaves | Yes | Yes |
| Boot modes | Legacy BIOS, UEFI | Legacy BIOS, UEFI |
On-demand prices by region
Cheapest for m8a.4xlarge first. Linux, USD per hour.
| Region | m8a.4xlarge | r8a.4xlarge | Difference |
|---|---|---|---|
| US East (N. Virginia)Used in summaryus-east-1 | $0.9738 | $1.278 | ▲ 31% |
| US East (Ohio)us-east-2 | $0.9738 | $1.278 | ▲ 31% |
| US West (Oregon)us-west-2 | $0.9738 | $1.278 | ▲ 31% |
| EU (Ireland)eu-west-1 | $1.085 | $1.43 | ▲ 32% |
| Europe (Spain)eu-south-2 | $1.085 | $1.43 | ▲ 32% |
| EU (Frankfurt)eu-central-1 | $1.166 | $1.542 | ▲ 32% |
| Asia Pacific (Tokyo)ap-northeast-1 | $1.258 | $1.542 | ▲ 23% |
Keep exploring
Each type’s own page, and how it compares with others.
AWS EC2 Linux prices in USD. Monthly figures use 730 hours. Prices last updated 12 Nov 2026.