Intel Core i7-8559U

Based on 2 reportsCPUIntelHigh-endMost recent submission: Jul 4, 2026

The Intel Core i7-8559U runs at an average of 81°C under load based on 2 community submissions. The hottest 10% of submissions report temperatures above 82°C, while the coolest 10% stay below 80°C. Idle temperatures average 58.5°C.

Runs warm

Average load temp is above the typical high-end baseline of 75°C — slightly warmer than peers in its class.

Specifications

Manufacturer: Intel

Idle Temperature

58.5°C

Normal

Coolest 10%

53.0°C

Typical

53.0°C

Hottest 10%

64.0°C

Load Temperature

81.0°C

Hot

Coolest 10%

80.0°C

Typical

80.0°C

Hottest 10%

82.0°C

Load temperature distribution

80–90°C

Load Temperature Distribution

20°C60°C100°C

Coolest 10%: 80°CTypical: 80°CHottest 10%: 82°C

Is your temperature normal?

Below 80°C — cooler than 90% of submissions for this hardware. Excellent cooling.
Between 80°C and 82°C — within the typical range for this hardware.
Above 82°C — hotter than 90% of submissions. Worth investigating: thermal paste, cooler mount, dust, or case airflow.
Above 90°C — at or beyond the safe operating ceiling for this tier. Reduce load, check cooling, and consider professional inspection.

Submissions over time

2026-052026-07

Coldest run

80.0°C

Stock Cooler cooling·May 16, 2026

Hottest run

82.0°C

Stock Cooler cooling·Jul 4, 2026

What's normal for this tier?

High-end CPUs typically run 70–85°C under load with a good air or AIO cooler. Sustained loads at 90°C+ usually indicate a cooling issue, dried thermal paste, or restrictive case airflow.

Compare with similar hardware

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Ambient room temperature affects readings. Average reported ambient: 25°C.

Recent Submissions

Date	Cooling	Idle	Load
Jul 4, 2026	Stock Cooler	53.0°C	82.0°C
May 16, 2026	Stock Cooler	64.0°C	80.0°C

Frequently asked questions

What is a normal temperature for the Intel Core i7-8559U?

Based on 2 community submissions, the Intel Core i7-8559U runs at an average idle temperature of 58.5°C and an average load temperature of 81°C. Anything between 80°C and 82°C under load is within the typical range for this hardware.

Is 81°C too hot for the Intel Core i7-8559U?

The safe operating ceiling for high-end CPUs like the Intel Core i7-8559U is around 90°C under sustained load. 81°C is within the safe operating range. If you're exceeding 90°C, check thermal paste, cooler mounting, dust buildup, and case airflow.

What is the best cooler for the Intel Core i7-8559U?

For a 75W high-end CPU like the Intel Core i7-8559U, a quality 240mm AIO or a high-end dual-tower air cooler (Noctua NH-D15, Thermalright Phantom Spirit) is generally sufficient to keep load temperatures well within safe limits. Higher TDP variants (overclocked or PBO-enabled) benefit from 360mm AIO cooling.