Top mp3 players by lightest ressouces usage (cpu and memory).

Sorted by CPU usage (in percentage) :

Software CPU usage Memory usage
Coolplayer
0.0
3.2
Boom Audio Player
0.0
5.2
foobar2000
0.0
7.8
Media Player Classic
0.0
10.0
Winamp
0.0
38.3
A Random Music Player
0.1
5.8
Creative Media Source Player
0.1
11.0
BS Player
0.1
16.9
GOM Audio
0.1
45.4
Xion Audio Player
0.2
2.8
SimplePlayer
0.2
13.0
MusicBee
0.2
24.7
Chrome
0.2
84.9
XMPlay
0.3
4.7
AIMP3
0.3
24.6
Audacious
0.4
12.1
M Player
0.4
19.7
Firefox
0.6
359.7
Clementine
0.7
53.2
VLC media player
0.9
16.8
Quint Essential Media Player
1.4
29.0
Applian FLV Media Player
1.4
35.6
Windows Media Player
1.5
14.3

Sorted by Memory usage (in Mo) :

Software CPU usage Memory usage
Xion Audio Player
0.2
2.8
Coolplayer
0.0
3.2
XMPlay
0.3
4.7
Boom Audio Player
0.0
5.2
A Random Music Player
0.1
5.8
foobar2000
0.0
7.8
Media Player Classic
0.0
10.0
Creative Media Source Player
0.1
11.0
Audacious
0.4
12.1
SimplePlayer
0.2
13.0
Windows Media Player
1.5
14.3
VLC media player
0.9
16.8
BS Player
0.1
16.9
M Player
0.4
19.7
AIMP3
0.3
24.6
MusicBee
0.2
24.7
Quint Essential Media Player
1.4
29.0
Applian FLV Media Player
1.4
35.6
Winamp
0.0
38.3
GOM Audio
0.1
45.4
Clementine
0.7
53.2
Chrome
0.2
84.9
Firefox
0.6
359.7

We often say tha foobar2000 is the lightest, but we have better solutions with Coolplayer and Boom Audio Player.

You don't even have to use a setup with these two players.