cache.m8g.8xlargevscache.r8g.8xlarge

cache.m8g.8xlarge is 28% cheaper than cache.r8g.8xlarge on demand in US East (N. Virginia), saving $715.18 a month.

At a glancecache.m8g.8xlargecache.r8g.8xlarge
On-demand$2.531/hr28% less$3.511/hr
Lowest rate$1.316/hr28% less3-yr reserved, no upfront$1.826/hr3-yr reserved, no upfront
Size32 vCPUs, 124.65 GiB32 vCPUs, 251.27 GiB
Architecturearm64arm64

Prices in US East (N. Virginia)

“Off” is the discount against each type’s own on-demand price. Memcached, USD per hour.

Optioncache.m8g.8xlargecache.r8g.8xlargecache.r8g.8xlarge vs cache.m8g.8xlarge
On-demandPay by the hour$2.531$3.511▲ 39%
1-yr reservedNo upfront32% off$1.72132% off$2.388▲ 39%
3-yr reservedNo upfront48% off$1.31648% off$1.826▲ 39%

Key differences

The biggest lead each one has.

Where cache.m8g.8xlarge leads
On-demand price$2.531 vs $3.511 per hour
28% cheaper
Where cache.r8g.8xlarge leads
Memory (GiB)251.27 vs 124.65
2× higher

Specs

4 of 16 specs differ. Those are in bold.

ComputeAll 7 matchcache.m8g.8xlargecache.r8g.8xlarge
vCPUs3232
Physical cores3232
Threads per core11
Architecturearm64arm64
CPU makerAWSAWS
Sustained clock2.8 GHz2.8 GHz
BurstableNoNo
Memory1 of 1 differcache.m8g.8xlargecache.r8g.8xlarge
Memory (GiB)124.65251.27
NetworkingAll 3 matchcache.m8g.8xlargecache.r8g.8xlarge
Network15 Gigabit15 Gigabit
Network baseline15 Gbps15 Gbps
Network peak15 Gbps15 Gbps
Instance details2 of 4 differcache.m8g.8xlargecache.r8g.8xlarge
Familym8gr8g
CategoryStandardMemory optimized
Current generationYesYes
Normalization factor51.251.2
Other1 of 1 differcache.m8g.8xlargecache.r8g.8xlarge
Hardware Basism8g.8xlarger8g.8xlarge

On-demand prices by region

Cheapest for cache.m8g.8xlarge first. Memcached, USD per hour.

Regioncache.m8g.8xlargecache.r8g.8xlargeDifference
Asia Pacific (Mumbai)ap-south-1$2.23$3.046▲ 37%
Asia Pacific (Hyderabad)ap-south-2$2.244$3.06▲ 36%
US East (N. Virginia)Used in summaryus-east-1$2.531$3.511▲ 39%
US East (Ohio)us-east-2$2.531$3.511▲ 39%
US West (Oregon)us-west-2$2.531$3.511▲ 39%
Asia Pacific (Malaysia)ap-southeast-5$2.69$3.60▲ 34%
Asia Pacific (Thailand)ap-southeast-7$2.69$3.60▲ 34%
EU (Stockholm)eu-north-1$2.69$3.734▲ 39%
Europe (Spain)eu-south-2$2.82$3.927▲ 39%
EU (Ireland)eu-west-1$2.821$3.929▲ 39%
Canada (Central)ca-central-1$2.822$3.845▲ 36%
Canada West (Calgary)ca-west-1$2.822$3.845▲ 36%
EU (London)eu-west-2$2.927$4.124▲ 41%
EU (Milan)eu-south-1$2.953$4.114▲ 39%
EU (Paris)eu-west-3$2.953$4.124▲ 40%
US West (N. California)us-west-1$2.953$3.901▲ 32%
EU (Frankfurt)eu-central-1$3.033$4.235▲ 40%
Asia Pacific (Seoul)ap-northeast-2$3.112$4.235▲ 36%
Asia Pacific (Jakarta)ap-southeast-3$3.164$4.235▲ 34%
Asia Pacific (Melbourne)ap-southeast-4$3.164$4.208▲ 33%
Asia Pacific (Singapore)ap-southeast-1$3.164$4.235▲ 34%
Asia Pacific (Sydney)ap-southeast-2$3.164$4.208▲ 33%
AWS GovCloud (US-East)us-gov-east-1$3.189$4.208▲ 32%
AWS GovCloud (US-West)us-gov-west-1$3.19$4.207▲ 32%
Asia Pacific (Osaka)ap-northeast-3$3.269$4.235▲ 30%
Asia Pacific (Tokyo)ap-northeast-1$3.269$4.235▲ 30%
Europe (Zurich)eu-central-2$3.336$4.659▲ 40%
Africa (Cape Town)af-south-1$3.349$4.681▲ 40%
Asia Pacific (Hong Kong)ap-east-1$3.48$4.655▲ 34%
South America (Sao Paulo)sa-east-1$4.034$5.588▲ 38%

Keep exploring

Each type’s own page, and how it compares with others.

cache.m8g.8xlargeStandard, m8g family
cache.m8g.8xlarge prices and specsEvery size in the m8g family

Compare cache.m8g.8xlarge with

cache.m7g.8xlarge
cache.r8g.8xlargeMemory optimized, r8g family
cache.r8g.8xlarge prices and specsEvery size in the r8g family

Compare cache.r8g.8xlarge with

cache.r8gd.8xlargecache.r7g.8xlarge

Pay the committed rate, with commitment protection

The best committed rate on these two is 48% below on-demand. Connect your cloud accounts to unlock greater savings with commitment protection.

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AWS ElastiCache Memcached prices in USD. Monthly figures use 730 hours. Prices last updated 12 Nov 2026.