cache.r8g.4xlarge
cache.r8g.4xlarge is an AWS ElastiCache size with 16 vCPUs, 124.65 GiB memory. In US East (N. Virginia) it costs $1.756 per hour on demand ($1,281.52 per month) for Memcached; a 1-year reserved instance with no upfront costs $1.194 per hour, 32% less. It is sold in 32 regions; the cheapest is Asia Pacific (Mumbai) at $1.523 per hour.
Prices by region
USD per hour, Memcached. Reserved prices are no upfront, standard. Cheapest on-demand first.
| Region | On-demand | 1-yr reserved | 3-yr reserved |
|---|---|---|---|
| Asia Pacific (Mumbai) ap-south-1 | $1.523 | $1.036 | $0.7921 |
| Asia Pacific (Hyderabad) ap-south-2 | $1.53 | $1.04 | $0.7956 |
| US East (N. Virginia) us-east-1 | $1.756 | $1.194 | $0.9129 |
| US East (Ohio) us-east-2 | $1.756 | $1.194 | $0.9129 |
| US West (Oregon) us-west-2 | $1.756 | $1.194 | $0.9129 |
| Asia Pacific (Malaysia) ap-southeast-5 | $1.80 | $1.224 | $0.9359 |
| Asia Pacific (Thailand) ap-southeast-7 | $1.80 | $1.224 | $0.936 |
| Mexico (Central) mx-central-1 | $1.843 | $1.253 | $0.9584 |
| EU (Stockholm) eu-north-1 | $1.867 | $1.269 | $0.9707 |
| Canada (Central) ca-central-1 | $1.923 | $1.307 | $0.9998 |
| Canada West (Calgary) ca-west-1 | $1.923 | $1.307 | $0.9998 |
| US West (N. California) us-west-1 | $1.95 | $1.326 | $1.014 |
| Europe (Spain) eu-south-2 | $1.964 | $1.335 | $1.021 |
| EU (Ireland) eu-west-1 | $1.964 | $1.336 | $1.022 |
| EU (Milan) eu-south-1 | $2.057 | $1.399 | $1.07 |
| EU (London) eu-west-2 | $2.062 | $1.402 | $1.072 |
| EU (Paris) eu-west-3 | $2.062 | $1.402 | $1.072 |
| AWS GovCloud (US-West) us-gov-west-1 | $2.104 | $1.431 | $1.094 |
| Asia Pacific (Melbourne) ap-southeast-4 | $2.104 | $1.431 | $1.094 |
| AWS GovCloud (US-East) us-gov-east-1 | $2.104 | $1.431 | $1.094 |
| Asia Pacific (Sydney) ap-southeast-2 | $2.104 | $1.431 | $1.094 |
| Asia Pacific (Tokyo) ap-northeast-1 | $2.118 | $1.44 | $1.101 |
| Asia Pacific (Seoul) ap-northeast-2 | $2.118 | $1.44 | $1.101 |
| Asia Pacific (Osaka) ap-northeast-3 | $2.118 | $1.44 | $1.101 |
| Asia Pacific (Singapore) ap-southeast-1 | $2.118 | $1.44 | $1.101 |
| Asia Pacific (Jakarta) ap-southeast-3 | $2.118 | $1.44 | $1.101 |
| EU (Frankfurt) eu-central-1 | $2.118 | $1.44 | $1.101 |
| Asia Pacific (New Zealand) ap-southeast-6 | $2.209 | $1.502 | $1.149 |
| Asia Pacific (Hong Kong) ap-east-1 | $2.327 | $1.583 | $1.21 |
| Europe (Zurich) eu-central-2 | $2.329 | $1.584 | $1.211 |
| Africa (Cape Town) af-south-1 | $2.341 | $1.591 | $1.217 |
| South America (Sao Paulo) sa-east-1 | $2.794 | $1.90 | $1.453 |
Prices by engine and deployment in US East (N. Virginia)
| Option | On-demand /hr | 1-yr reserved /hr | 3-yr reserved /hr |
|---|---|---|---|
| Valkey | $1.404 | $0.955 | $0.7303 |
| Memcached | $1.756 | $1.194 | $0.9129 |
Specs
| Compute | Value |
|---|---|
| vCPUs | 16 |
| Physical cores | 16 |
| Threads per core | 1 |
| Architecture | arm64 |
| CPU maker | AWS |
| Sustained clock | 2.8 GHz |
| Burstable | No |
| Memory | Value |
|---|---|
| Memory (GiB) | 124.65 |
| Networking | Value |
|---|---|
| Network | Up to 15 Gbps |
| Network baseline | 7.5 Gbps |
| Network peak | 15 Gbps |
| Instance details | Value |
|---|---|
| Instance type | cache.r8g.4xlarge |
| Family | r8g |
| Category | Memory optimized |
| Current generation | Yes |
| Normalization factor | 25.6 |
| Other | Value |
|---|---|
| Hardware Basis | r8g.4xlarge |
Compare cache.r8g.4xlarge
Compute and memory optimized
With or without local disk and networking
Other generations
Other r8g sizes
| Size | vCPUs | Memory (GiB) | On-demand /hr |
|---|---|---|---|
| cache.r8g.large | 2 | 14.18 | $0.2195 |
| cache.r8g.xlarge | 4 | 29.68 | $0.4389 |
| cache.r8g.2xlarge | 8 | 61.33 | $0.8777 |
| cache.r8g.4xlarge | 16 | 124.65 | $1.756 |
| cache.r8g.8xlarge | 32 | 251.27 | $3.511 |
| cache.r8g.12xlarge | 48 | 377.9 | $5.267 |
| cache.r8g.16xlarge | 64 | 504.52 | $7.022 |
Prices updated 2026-11-12 from AWS public price lists. Compare all AWS ElastiCache sizes.