Windows versions
Which versions are people using?
See Usage share of operating systems
Here are some OS stats from web clients. Figures are percent of all Windows versions.
Source | Date | 8/8.1 | 7 | Vista | XP | <XP |
---|---|---|---|---|---|---|
Netmarketshare |
|
13.3 | 53.7 | 3.1 | 28.6 | 1.2 |
W3 schools |
|
15.5 | 62.3 | 4.1 | 18.1 | 0.1 |
Statcounter |
|
19.6 | 68.7 | 1.5 |
|
0.2 |
AT internet | Febuary 2014 | 11.4 | 61.5 | 6.7 | 20.5 | 0.0 |
Wikimedia |
|
15.2 | 64.0 | 4.4 | 16.2 | 0.2 |
Here are the percentages of Windows versions analyzed from the Firefox automated crash reports of 8 May 2014 and 20 September 2015.
Source | Date | 10 | 8/8.1 | 7 | Vista | XP | <XP |
---|---|---|---|---|---|---|---|
Firefox crashes |
|
10.1 | 61.5 | 4.8 | 23.5 |
|
|
Firefox crashes | 20 Sept 2015 |
|
14.7 | 63.5 | 4.2 | 5.8 |
|
The game site Steam has a hardware survey with these numbers for April 2014:
32 or 64 bits? | 8/8.1 | 7 | Vista | XP | <XP |
---|---|---|---|---|---|
32 + 64 bits | 24.8 | 65.5 | 3.6 | 6.0 | 0.1 |
32 bits |
|
13.0 | 1.2 | 5.7 | 0.1 |
64 bits | 23.9 | 52.5 | 2.4 | 0.3 | 0.0 |
% 64 bits | 96.2 | 80.2 | 65.7 | 5.0 | 0.0 |
Steam survey for December 2015:
32 or 64 bits? | 10 | 8/8.1 | 7 | Vista | XP |
---|---|---|---|---|---|
32 bits |
|
|
|
0.3 | 2.2 |
64 bits | 28.8 | 18.6 | 35.6 | 0.2 |
|
% 64 bits | 96.6 | 96.9 | 82.0 | 36.0 |
|
Gamers tend to have high performance machines, this might also be true for scientists doing numerical computing.
Of 64 bit versions of Windows, 99.7% have Windows 7 or greater:
>>> b64 = [28.8, 18.6, 35.6, 0.2, 0]
>>> print(sum(b64[:3]) / sum(b64) * 100)
What proportion of users have SSE2?
One estimate is from an analysis of Firefox crash reports in early 2012. This showed 4.5% of crash reports coming from CPUs without SSE2. The analysis was likely only for crash reports on Windows machines.
Here's the same analysis at 3-monthly intervals since then:
20120102-pub-crashdata.csv.gz: 4.53
20120401-pub-crashdata.csv.gz: 4.24
20120701-pub-crashdata.csv.gz: 2.77
20121001-pub-crashdata.csv.gz: 2.83
20130101-pub-crashdata.csv.gz: 2.66
20130401-pub-crashdata.csv.gz: 2.59
20130701-pub-crashdata.csv.gz: 2.20
20131001-pub-crashdata.csv.gz: 1.92
20140101-pub-crashdata.csv.gz: 1.86
20140401-pub-crashdata.csv.gz: 1.12
20140701-pub-crashdata.csv.gz: 0.95
More recently:
20150920-pub-crashdata.csv.gz: 0.50
See analyze_crashes.py.
So we appear to be at about half of one percent non-SSE2 Windows machines for Firefox crashes.
The Steam hardware survey has 99.96% of Windows users with SSE2 in April 2014. By December 2015 this figure was 99.99% with 99.93% having SSE3.