# UserBenchmark.org — Intel Core i9-9900 Processor (16M Cache, up to 5.00 GHz) hub (machine-readable facts)
hardware: Intel Core i9-9900 Processor (16M Cache, up to 5.00 GHz)
type: CPU
as_of: 2026-07-28
metric_definition: Sustained Health Score = performance retention + thermal behavior + stability under continuous 10-minute browser stress load (NOT peak throughput)
aggregation: per-pairing median (outlier-resistant), hub score sample-weighted
distinct_pairings: 3
total_verified_samples: 17
sustained_health_score: 63.6/100
grade: C
best_pairing_min5samples: NVIDIA GeForce RTX 2080 Ti (65/100, 6 samples)
worst_pairing_min5samples: Intel(R) UHD Graphics 630 (58/100, 8 samples)
sustained_cpu_decay_pct: 0.8
avg_thermal_health: 89/100
path_tracing_stability: 91/100
confidence_tiers: High=15+ samples, Moderate=5-14, Low=<5
methodology: real-time browser CPU stress, GPU compute pressure, WebGL path tracing
license: CC-BY-4.0 (attribution: UserBenchmark.org)
canonical: https://userbenchmark.org/results/cpu/core-i9-9900-16m-cache-up-to-5-00-ghz/

## all_pairings (pairing | sustained_health_median/100 | grade | decay_pct | thermal/100 | samples | confidence | combo_page)
Intel(R) UHD Graphics 630 | 58 | C | 13 | 89 | 8 | Moderate | https://userbenchmark.org/results/combo/core-i9-9900-intel-uhd-630/
NVIDIA GeForce RTX 2080 Ti | 65 | B | 6.4 | 87 | 6 | Moderate | https://userbenchmark.org/results/combo/core-i9-9900-rtx-2080-ti/
NVIDIA GeForce RTX 2060 | 76 | B | 1.3 | 97 | 3 | Low | https://userbenchmark.org/results/combo/core-i9-9900-rtx-2060/