M3

Memory Optimized

Designed for workloads that need large amounts of memory relative to vCPUs. Ideal for in-memory databases, real-time analytics, and large caching layers.

Specifications

vCPUs

32-128

Memory

960-3904 GB

Network

Up to 100 Gbps

Synthetic Benchmarks

Category	Metric	Result	Source
cpu	Geekbench 6 Single-Core	1,480 points	Geekbench Browser
cpu	Geekbench 6 Multi-Core	11,600 points	Geekbench Browser
memory	STREAM Bandwidth	68.4 GB/s	GCP Performance Benchmarks
memory	Max Memory Per VM	3,904 GB	GCP Documentation
memory	Memory Latency	72 ns	GCP Performance Benchmarks
network	Max Bandwidth	100 Gbps	GCP Documentation

Workload Performance

Workload Performance Summary

Best result per workload category (mixed units -- see table below for details)

Workload	Metric	Machine Type	Result	Notes
Database	PostgreSQL TPS	m3-ultramem-32	6,100 TPS	pgbench TPC-B, 32 clients, entirely in-memory dataset
Database	Redis Operations/sec	m3-ultramem-32	380,000 ops/s	redis-benchmark, 50 parallel connections, large dataset in-memory

Pricing

On-demand pricing in us-central1. Spot and committed-use discounts shown for comparison.

Machine Type	vCPUs	Memory	On-Demand/hr	Spot/hr	1yr CUD/hr	3yr CUD/hr
m3-ultramem-32	32	960 GB	$5.851	$1.755	$3.686	$2.633
m3-ultramem-64	64	1920 GB	$11.702	$3.511	$7.372	$5.266
m3-ultramem-128	128	3904 GB	$23.790	$7.137	$14.988	$10.706