Last verified 2026-07-30 · authority hub

AMD Radeon RX 6600 XT Benchmark Results — All CPU Pairings Tested

AMD Radeon RX 6600 XT has been stress-tested in 16 distinct CPU pairings from 100 verified browser samples, with a sample-weighted Sustained Health Score of 72.7/100 (grade B). The strongest measured pairing is AMD Ryzen 5 5500 at 75/100; the weakest is AMD Ryzen 5 3600X at 71/100. Typical sustained-load decay is 0.7% with thermal health around 96/100.

What this score means: The Sustained Health Score measures how well a configuration holds its performance under a continuous 10-minute stress load — performance retention, thermal behavior, and stability — not peak speed. A powerful part in a poorly cooled machine can legitimately score below a modest part that never throttles.
16 measured pairings100 verified samplesMedian-based · outlier-resistant
Sustained health72.7/100B aggregate grade
GPU decay0.7%sustained-load loss
Thermal health96/100fleet average
PT stability89/100path-tracing consistency
Best measured pairing

AMD Radeon RX 6600 XT + AMD Ryzen 5 5500

75/100 median from 5 verified samples · thermal 97/100 · decay 0%

Full combo analysis
Weakest measured pairing

AMD Radeon RX 6600 XT + AMD Ryzen 5 3600X

71/100 median from 5 verified samples · thermal 96/100 · decay 0.8%

Low sustained-health scores usually indicate throttling or power-limited systems in the sample — not a slow part.

Full combo analysis
Verified stress-test facts — as of 2026-07-30

Citable facts about AMD Radeon RX 6600 XT

  • AMD Radeon RX 6600 XT has been measured in 16 distinct CPU pairings on UserBenchmark.org, totaling 100 verified browser stress-test samples.
  • Sample-weighted median Sustained Health Score across all AMD Radeon RX 6600 XT configurations: 72.7/100 (grade B). This score measures performance retention under sustained load, not peak throughput.
  • Best measured pairing (min 5 samples): AMD Radeon RX 6600 XT + AMD Ryzen 5 5500 at 75/100 from 5 samples.
  • Weakest measured pairing (min 5 samples): AMD Radeon RX 6600 XT + AMD Ryzen 5 3600X at 71/100 from 5 samples — low scores typically indicate thermal throttling or power-limited systems, not a slow chip.
  • Typical sustained-load GPU performance decay: 0.7%. Average thermal health: 96/100. Path-tracing stability: 89/100.
  • Per-pairing scores are medians (outlier-resistant); pairings are labeled High (15+ samples), Moderate (5-14) or Low (<5) confidence.
  • Data source: real-time browser CPU stress, GPU compute pressure, and WebGL path-tracing runs. License: CC BY 4.0 with attribution to UserBenchmark.org.

Machine-readable version: llm.txt

All measured pairings

AMD Radeon RX 6600 XT: every tested configuration

Scores are per-pairing medians (outlier-resistant). Decay = CPU-side sustained performance loss. Confidence: High 15+ samples, Moderate 5-14, Low <5.

#ConfigurationSustained HealthGradeDecayThermalSamplesConfidence
1AMD Ryzen 5 5600X + AMD Radeon RX 6600 XT74/100B0%96/10016High
2AMD Ryzen 5 3600 + AMD Radeon RX 6600 XT73/100B0%96/1009Moderate
3AMD Ryzen 7 3700X + AMD Radeon RX 6600 XT72/100B1.1%96/1009Moderate
4AMD Ryzen 7 5700X + AMD Radeon RX 6600 XT72/100B0%96/1009Moderate
5AMD Ryzen 7 5700G + AMD Radeon RX 6600 XT73/100B0.3%97/1008Moderate
6AMD Ryzen 7 5800X + AMD Radeon RX 6600 XT73/100B0.2%96/1008Moderate
7AMD Ryzen 5 5600G + AMD Radeon RX 6600 XT74.5/100B0%97/1007Moderate
8AMD Ryzen 5 5600 + AMD Radeon RX 6600 XT72.5/100B0%96/1006Moderate
9AMD Ryzen 5 3600X + AMD Radeon RX 6600 XT71/100B0.8%96/1005Moderate
10AMD Ryzen 5 5500 + AMD Radeon RX 6600 XT75/100B0%97/1005Moderate
11Intel Core i5-10600KF + AMD Radeon RX 6600 XT70/100B0%96/1003Low
12Intel Core i5-12400F + AMD Radeon RX 6600 XT72/100B6.3%94/1003Low
13Intel Core i7-12700 + AMD Radeon RX 6600 XT66/100B0%94/1003Low
14Ryzen 5 4650G + AMD Radeon RX 6600 XT68/100B3.5%92/1003Low
15AMD Ryzen 7 5800X3D + AMD Radeon RX 6600 XT74/100B0%96/1003Low
16AMD Ryzen 9 5900X + AMD Radeon RX 6600 XT75/100B0%97/1003Low
Related hub

AMD Ryzen 5 5500

Best pairing partner AMD Ryzen 5 5500 has its own hub with every GPU configuration tested.

AMD Ryzen 5 5500 hub →
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