cache.m8g.16xlargevscache.r8g.16xlarge

cache.m8g.16xlarge is 28% cheaper than cache.r8g.16xlarge on demand in US East (N. Virginia), saving $1,430.51 a month.

At a glancecache.m8g.16xlargecache.r8g.16xlarge
On-demand$5.063/hr28% less$7.022/hr
Lowest rate$2.632/hr28% less3-yr reserved, no upfront$3.651/hr3-yr reserved, no upfront
Size64 vCPUs, 251.27 GiB64 vCPUs, 504.52 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.16xlargecache.r8g.16xlargecache.r8g.16xlarge vs cache.m8g.16xlarge
On-demandPay by the hour$5.063$7.022▲ 39%
1-yr reservedNo upfront32% off$3.44232% off$4.775▲ 39%
3-yr reservedNo upfront48% off$2.63248% off$3.651▲ 39%

Key differences

The biggest lead each one has.

Where cache.m8g.16xlarge leads
On-demand price$5.063 vs $7.022 per hour
28% cheaper
Where cache.r8g.16xlarge leads
Memory (GiB)504.52 vs 251.27
2× higher

Specs

5 of 16 specs differ. Those are in bold.

ComputeAll 7 matchcache.m8g.16xlargecache.r8g.16xlarge
vCPUs6464
Physical cores6464
Threads per core11
Architecturearm64arm64
CPU makerAWSAWS
Sustained clock2.8 GHz2.8 GHz
BurstableNoNo
Memory1 of 1 differcache.m8g.16xlargecache.r8g.16xlarge
Memory (GiB)251.27504.52
NetworkingAll 3 matchcache.m8g.16xlargecache.r8g.16xlarge
Network30 Gigabit30 Gigabit
Network baseline30 Gbps30 Gbps
Network peak30 Gbps30 Gbps
Instance details3 of 4 differcache.m8g.16xlargecache.r8g.16xlarge
Familym8gr8g
CategoryStandardMemory optimized
Current generationYesYes
Normalization factor102.4128
Other1 of 1 differcache.m8g.16xlargecache.r8g.16xlarge
Hardware Basism8g.16xlarger8g.16xlarge

On-demand prices by region

Cheapest for cache.m8g.16xlarge first. Memcached, USD per hour.

Regioncache.m8g.16xlargecache.r8g.16xlargeDifference
Asia Pacific (Mumbai)ap-south-1$4.461$6.093▲ 37%
Asia Pacific (Hyderabad)ap-south-2$4.488$6.12▲ 36%
US East (N. Virginia)Used in summaryus-east-1$5.063$7.022▲ 39%
US East (Ohio)us-east-2$5.063$7.022▲ 39%
US West (Oregon)us-west-2$5.063$7.022▲ 39%
Asia Pacific (Malaysia)ap-southeast-5$5.38$7.20▲ 34%
Asia Pacific (Thailand)ap-southeast-7$5.38$7.20▲ 34%
EU (Stockholm)eu-north-1$5.38$7.467▲ 39%
Europe (Spain)eu-south-2$5.639$7.854▲ 39%
EU (Ireland)eu-west-1$5.642$7.858▲ 39%
Canada (Central)ca-central-1$5.643$7.691▲ 36%
Canada West (Calgary)ca-west-1$5.643$7.691▲ 36%
EU (London)eu-west-2$5.854$8.248▲ 41%
EU (Milan)eu-south-1$5.906$8.228▲ 39%
EU (Paris)eu-west-3$5.906$8.248▲ 40%
US West (N. California)us-west-1$5.906$7.802▲ 32%
EU (Frankfurt)eu-central-1$6.065$8.47▲ 40%
Asia Pacific (Seoul)ap-northeast-2$6.223$8.47▲ 36%
Asia Pacific (Jakarta)ap-southeast-3$6.328$8.47▲ 34%
Asia Pacific (Melbourne)ap-southeast-4$6.328$8.415▲ 33%
Asia Pacific (Singapore)ap-southeast-1$6.328$8.47▲ 34%
Asia Pacific (Sydney)ap-southeast-2$6.328$8.416▲ 33%
AWS GovCloud (US-East)us-gov-east-1$6.378$8.415▲ 32%
AWS GovCloud (US-West)us-gov-west-1$6.38$8.415▲ 32%
Asia Pacific (Osaka)ap-northeast-3$6.539$8.47▲ 30%
Asia Pacific (Tokyo)ap-northeast-1$6.539$8.47▲ 30%
Europe (Zurich)eu-central-2$6.671$9.318▲ 40%
Africa (Cape Town)af-south-1$6.698$9.362▲ 40%
Asia Pacific (Hong Kong)ap-east-1$6.961$9.309▲ 34%
South America (Sao Paulo)sa-east-1$8.069$11.175▲ 39%

Keep exploring

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

cache.m8g.16xlargeStandard, m8g family
cache.m8g.16xlarge prices and specsEvery size in the m8g family

Compare cache.m8g.16xlarge with

cache.m7g.16xlarge
cache.r8g.16xlargeMemory optimized, r8g family
cache.r8g.16xlarge prices and specsEvery size in the r8g family

Compare cache.r8g.16xlarge with

cache.r8gd.16xlargecache.r7g.16xlarge

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.