MAX_COMBINED_UNIFORM_BLOCKS

Maximum number of uniform blocks available across shader stages. A uniform block groups many related uniform values into one bindable buffer-backed unit.

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Overall Support

≥ means at least this value.

Reported value	Reports
≥ 23	100%
≥ 24	98%
≥ 26	48%
≥ 31	47%
≥ 35	23%
≥ 39	22%
≥ 44	19%
≥ 45	18%
≥ 47	15%
≥ 58	14%
≥ 66	5%
≥ 73	4%
≥ 81	3%
≥ 87	1%

Platform Support

Platform

Reports

Android

Reported value	Reports
≥ 36	100%
≥ 41	94%
≥ 42	93%
≥ 45	62%
≥ 58	57%
≥ 60	56%
≥ 69	18%
≥ 83	16%
≥ 215	7%

Chromium OS

Reported value	Reports
≥ 36	100%
≥ 45	99%
≥ 48	70%
≥ 60	69%

iOS

Reported value	Reports
≥ 24	100%
≥ 32	85%
≥ 45	1%

Linux

Reported value	Reports
≥ 30	100%
≥ 36	99%
≥ 42	98%
≥ 44	87%
≥ 45	82%
≥ 47	51%
≥ 54	50%
≥ 66	37%
≥ 74	36%
≥ 80	24%
≥ 87	14%
≥ 215	1%

Mac OS

Reported value	Reports
≥ 24	100%
≥ 27	92%
≥ 31	91%
≥ 32	88%
≥ 59	6%
≥ 70	5%

Windows

Reported value	Reports
≥ 23	100%
≥ 24	97%
≥ 32	2%

Browser Support

Browser

Reports

Chrome/Chromium

Reported value	Reports
≥ 23	100%
≥ 24	98%
≥ 26	48%
≥ 32	47%
≥ 35	27%
≥ 39	26%
≥ 44	21%
≥ 47	16%
≥ 59	15%
≥ 70	1%

Edge

Reported value	Reports
≥ 24	100%
≥ 28	6%
≥ 36	2%
≥ 45	1%

Firefox

Reported value	Reports
≥ 24	100%
≥ 32	47%
≥ 60	46%
≥ 72	45%
≥ 77	35%
≥ 81	20%
≥ 87	12%
≥ 216	2%

Opera

Reported value	Reports
≥ 24	100%
≥ 28	14%
≥ 30	13%
≥ 36	6%
≥ 45	4%
≥ 48	3%
≥ 72	1%

Other

Reported value	Reports
≥ 24	100%
≥ 32	72%
≥ 36	19%
≥ 45	18%
≥ 72	14%
≥ 84	12%
≥ 90	4%

Safari

Reported value	Reports
≥ 24	100%
≥ 28	80%
≥ 42	1%

Samsung Internet

Reported value	Reports
≥ 35	100%
≥ 41	99%
≥ 60	98%
≥ 71	81%
≥ 83	79%
≥ 84	78%
≥ 215	30%
≥ 216	28%