
Qdrant Performance: Benchmarks, Latency & Limits 2026
Qdrant hits ~12ms p99 at 10M vectors and up to 4x the RPS of open-source rivals. Binary quantization cuts memory 32x. Multi-AZ cloud carries a 99.95% SLA.
Qdrant Performance verdict
Qdrant delivers about 12ms p99 at 10M vectors, and up to 4x the RPS of leading open-source alternatives.
Binary quantization cuts memory 32x with a 40x search speedup. Multi-AZ cloud carries a contractual 99.95% SLA.
Pick Qdrant for self-hosted or hybrid-cloud RAG workloads where you want the lowest open-source p99 latency, aggressive quantization compression, and no per-namespace throughput cap. Budget for cluster sizing, since throughput scales with nodes, not a managed dial.
- The benchmark latency numbers are a mix of vendor-published figures and independent analyses, with no fully independent third-party audit.
- Self-hosted throughput scales with node count. There is no per-namespace cap, unlike Pinecone, but you own cluster sizing.
- Binary quantization works best for embeddings with 1024 or more dimensions, and performance degrades below that threshold.
- p99 latency (10M vectors)
- ~12 ms
- RPS vs competitors
- up to 4x
- Binary quant speedup
- 40x
- Binary quant memory
- 32x reduction
- Multi-AZ SLA
- 99.95%
Benchmark latency (1M to 10M vectors)
| Dataset | Vectors | Dimensions | p99 latency |
|---|---|---|---|
| DBpedia OpenAI 1M | 1M | 1536 | ~20 ms |
| Deep-image 10M | 10M | 96 | ~12 ms |
| GIST 960-euclidean | 1M | 960 | competitive |
| GloVe 100-angular | 1.2M | 100 | competitive |
| DBpedia OpenAI 1M (vs Elasticsearch) | 10M+ | various | 10x faster indexing |
| vs pgvector/pgvectorscale | 1M | various | 48% lower p99 (38.71 ms vs 74.60 ms) |
Throughput and RPS profile
| Scenario | Result |
|---|---|
| RPS gain vs competitors (1M OpenAI vectors) | up to 4x RPS |
| Benchmark server vCPUs / RAM | 8 vCPUs / 32 GB RAM |
| Benchmark client vCPUs / RAM | 8 vCPUs / 16 GB RAM |
| Memory ceiling per engine (benchmark) | 25 GB |
| Elasticsearch indexing vs Qdrant (10M vectors) | 10x slower (5.5 hrs vs 32 min) |
| Rust-based SIMD search engine | HNSW + SIMD on CPU |
Quantization compression and speed gains
| Method | Memory reduction | Speed gain | Recall (typical) |
|---|---|---|---|
| official_doc | 4x | faster CPU ops | <1% error |
| official_doc | 32x | up to 40x | 0.98 @ ada-002 |
| official_doc | 32x | up to 40x | 0.9966 @ 3x oversampling |
| official_doc | 32x | up to 40x | 0.98 @ 4x oversampling |
| official_doc | up to 64x | variable | lower, use when memory is top priority |
| official_doc | 8x | similar to INT8 | similar to scalar |
Reliability and distributed architecture
- Raft consensus protocol maintains cluster topology and collection structure across all nodes
- write_consistency_factor sets how many replicas must ack a write; defaults to 1, max equals replication_factor
- Cluster continues accepting updates if at least one replica per shard is online (default write_consistency_factor=1)
- Raft quorum recovery requires more than 50 percent of nodes to be healthy
- Multi-AZ Premium clusters carry a contractual 99.95 percent uptime SLA
- Standard cloud tier SLA is 99.5 percent; Premium single-zone is 99.9 percent
- Zero-downtime upgrades and automated backups are included in all managed cloud tiers
Scale ceilings and cluster limits
| Dimension | Ceiling / rule |
|---|---|
| Multi-AZ node scaling | multiples of 3 (3, 6, 9...) |
| GPU indexing | AWS clusters only |
| Cloud providers | AWS, GCP, Azure |
| Free tier cluster | 0.5 vCPU / 1GB RAM / 4GB disk |
| Disk speed tiers | Balanced 32GB+, Performance 256GB+ (AWS) |
| Update queue per shard | 1,000,000 pending |
Benchmarked results vs peers
- On its own benchmark suite Qdrant reports the highest RPS and lowest latencies in almost all scenarios against Weaviate, Milvus, Elasticsearch and Redis
- It delivers up to 4x the requests per second of competitors on a 1M OpenAI-vector dataset
- An independent 2026 analysis measured ~12ms p99 latency at 10M vectors, ahead of Weaviate (~16ms) and Milvus (~18ms)
- The same independent test recorded 48% lower p99 than Postgres with pgvector and pgvectorscale (38.71ms vs 74.60ms)
- Against Elasticsearch it indexes roughly 10x faster, 32 minutes versus 5.5 hours for 10M vectors
- Benchmarks ran on an 8 vCPU / 32GB server against an 8 vCPU / 16GB client with a 25GB per-engine memory ceiling
Qdrant Performance FAQ
What is Qdrant's query latency at scale?
About 12ms p99 on a 10M-vector dataset, which is 25 to 33% faster than Weaviate, at around 16ms, and Milvus, at around 18ms, on the same workload, per a 2026 independent comparison.
What throughput can Qdrant handle?
Up to 4x higher RPS than competitors on some datasets, in Qdrant's own benchmarks. Unlike SaaS products, there is no hard per-namespace cap. Throughput scales with the number of cluster nodes you provision.
How much does binary quantization speed up search?
Up to 40x search speedup versus full float32 vectors, with a 32x memory reduction. Recall stays at 0.98 or higher for 1536-dimensional models like OpenAI ada-002 with 3 to 4x oversampling, but degrades below 1024 dimensions.
What SLA does Qdrant cloud offer?
The standard cloud tier is 99.5% uptime. Premium single-zone is 99.9%. Premium Multi-AZ is 99.95%, the highest tier with a contractual guarantee.
How does Qdrant handle node failures in a cluster?
It uses Raft consensus for cluster topology. If fewer nodes fail than the replication factor, reads and writes continue. Recovery requires more than 50% of nodes to be healthy. Setting write_consistency_factor to match the replication factor blocks writes when a replica is offline, which prevents divergence.
Sources & verification
| Source | What was checked | Last checked |
|---|---|---|
| Qdrant Official | Official product page | July 10, 2026 |
| Digitalapplied Blog Vector Databases For Ai Agents Pinecone Q | Independent reference | July 10, 2026 |
| Qdrant Articles Binary Quantization | Articles Binary Quantization | July 10, 2026 |
| Qdrant Benchmarks | Benchmarks | July 10, 2026 |
| Qdrant Cloud Create Cluster | Cloud Create Cluster | July 10, 2026 |
| Qdrant Documentation Cloud Premium | Documentation Cloud Premium | July 10, 2026 |
| Qdrant Guides Distributed Deployment | Documentation Distributed Deployment | July 10, 2026 |
Every fact on this Qdrant page is tied to a named source and a verification date. Freshness-sensitive figures trace to the sources above; verify against the vendor before relying on them.
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