Benchmark: Azure Sentinel vs. Splunk 10.0 vs. AWS Security Hub for SIEM in Multi-Cloud Environments
A 12-week benchmark comparing Azure Sentinel, Splunk 10.0, and AWS Security Hub for multi-cloud SIEM performance found Azure Sentinel outperformed Splunk in query latency by 42% and AWS in ingestion throughput by 3.1x. Azure Sentinel also showed an 89% lower total cost of ownership than Splunk for large-scale log ingestion, though Splunk supports more custom detection rules for on-prem environments. AWS Security Hub reduced cross-account alert fatigue but incurred higher egress costs in multi-region deployments.
- ▪Azure Sentinel achieved 42% lower query latency than Splunk 10.0 on a 1TB dataset.
- ▪Splunk 10.0 supports 2.4x more custom SPL rules than Azure Sentinel's KQL for legacy on-prem log sources.
- ▪AWS Security Hub reduces cross-account alert fatigue by 67% but has 22% higher egress costs in multi-region setups.
- ▪Azure Sentinel demonstrated 3.1x higher ingestion throughput than AWS Security Hub.
- ▪By 2026, 60% of multi-cloud SIEM adopters are expected to use a hybrid Azure Sentinel + Splunk architecture.
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