maxComputeWorkgroupSizeX

Maximum compute workgroup size along the X dimension. Workgroup size controls how many compute shader invocations are launched together in each dimension.

Check your device: WebGPU Capabilities Report.

More details: Developer Docs (MDN) Specification (W3C)

Overall Support

≥ means at least this value.

Reported value	Reports
≥ 256	100%
≥ 1024	92%

Platform Support

Platform

Reports

Android

Reported value	Reports
≥ 256	100%
≥ 1024	64%

Chromium OS

Reported value	Reports
≥ 256	100%
≥ 1024	37%

iOS

Reported value	Reports
≥ 256	100%
≥ 1024	99%

Linux

Reported value	Reports
≥ 256	100%
≥ 1024	85%
≥ 1536	1%

Mac OS

Reported value	Reports
≥ 256	100%
≥ 1024	99%

Windows

Reported value	Reports
≥ 256	100%
≥ 1024	100%

Browser Support

Browser

Reports

Chrome/Chromium

Reported value	Reports
≥ 256	100%
≥ 1024	89%

Edge

Reported value	Reports
≥ 256	100%
≥ 1024	100%

Firefox

Reported value	Reports
≥ 256	100%
≥ 1024	100%

Opera

Reported value	Reports
≥ 256	100%
≥ 1024	98%

Other

Reported value	Reports
≥ 256	100%
≥ 1024	99%

Safari

Reported value	Reports
≥ 256	100%
≥ 1024	98%

Samsung Internet

Reported value	Reports
≥ 256	100%
≥ 1024	64%

Vendor Values

Vendor

Reports

amd

Reported value	Reports
≥ 256	100%
≥ 1024	100%

apple

Reported value	Reports
≥ 256	100%
≥ 1024	99%

arm

Reported value	Reports
≥ 256	100%
≥ 1024	22%

google

Reported value	Reports
≥ 256	100%

img-tec

Reported value	Reports
≥ 256	100%
≥ 1024	100%

intel

Reported value	Reports
≥ 256	100%
≥ 1024	88%

intelr

Reported value	Reports
≥ 256	100%
≥ 1024	100%

microsoft

Reported value	Reports
≥ 256	100%
≥ 1024	100%

nvidia

Reported value	Reports
≥ 256	100%
≥ 1024	100%

qualcomm

Reported value	Reports
≥ 256	100%
≥ 1024	99%

Vendor Architecture Values

Vendor - Architecture

Reports

amd - gcn-4

Reported value	Reports
≥ 256	100%
≥ 1024	100%

amd - gcn-5

Reported value	Reports
≥ 256	100%
≥ 1024	100%

amd - rdna-1

Reported value	Reports
≥ 256	100%
≥ 1024	100%

amd - rdna-2

Reported value	Reports
≥ 256	100%
≥ 1024	100%

amd - rdna-3

Reported value	Reports
≥ 256	100%
≥ 1024	100%

apple - apple

Reported value	Reports
≥ 256	100%
≥ 1024	98%

apple - metal-3

Reported value	Reports
≥ 256	100%
≥ 1024	100%

arm - bifrost

Reported value	Reports
≥ 256	100%

arm - valhall

Reported value	Reports
≥ 256	100%
≥ 1024	30%

intel - gen-11

Reported value	Reports
≥ 256	100%
≥ 1024	36%

intel - gen-12lp

Reported value	Reports
≥ 256	100%
≥ 1024	100%

intel - gen-8

Reported value	Reports
≥ 256	100%
≥ 1024	100%

intel - gen-9

Reported value	Reports
≥ 256	100%
≥ 1024	78%

intel - xe-2lpg

Reported value	Reports
≥ 256	100%
≥ 1024	100%

intel - xe-lpg

Reported value	Reports
≥ 256	100%
≥ 1024	100%

nvidia - ampere

Reported value	Reports
≥ 256	100%
≥ 1024	100%

nvidia - blackwell

Reported value	Reports
≥ 256	100%
≥ 1024	100%

nvidia - kepler

Reported value	Reports
≥ 256	100%
≥ 1024	100%

nvidia - lovelace

Reported value	Reports
≥ 256	100%
≥ 1024	100%

nvidia - maxwell

Reported value	Reports
≥ 256	100%
≥ 1024	100%

nvidia - pascal

Reported value	Reports
≥ 256	100%
≥ 1024	100%

nvidia - turing

Reported value	Reports
≥ 256	100%
≥ 1024	100%

qualcomm - adreno-6xx

Reported value	Reports
≥ 256	100%
≥ 1024	100%

qualcomm - adreno-7xx

Reported value	Reports
≥ 256	100%
≥ 1024	100%

qualcomm - adreno-8xx

Reported value	Reports
≥ 256	100%
≥ 1024	100%