navigator.hardwareConcurrency
Returns the number of logical cores of the user's CPU. The value may be reduced to prevent device fingerprinting or because it exceeds the allowed number of simultaneous web workers.
IE | Edge | Firefox | Chrome | Safari | Opera | iOS Safari | Opera Mini | Android Browser | Blackberry Browser | Opera Mobile | Chrome for Android | Firefox for Android | IE Mobile | UC Browser for Android | Samsung Internet | QQ Browser | Baidu Browser |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
49 | |||||||||||||||||
56 | 9.3
See notes:
|
4.4 | |||||||||||||||
14 | 52 | 57 | 10
See notes:
|
10.0-10.2
See notes:
|
4.4.3-4.4.4 | 4 | |||||||||||
11 | 15 | 53 | 58 | 10.1
See notes:
|
44 | 10.3
See notes:
|
all | 56 | 10 | 37 | 57 | 52 | 11 | 11.4 | 5 | 1.2 | 7.12 |
54 | 59 | TP
See notes:
|
45 | ||||||||||||||
55 | 60 | 46 | |||||||||||||||
56 | 61 |
Notes
-
1
Webkit browsers clamp the maximum value returned to 2 on iOS devices and 8 on all others. Disabled in Safari behind the ENABLE_NAVIGATOR_HWCONCURRENCY build option.