I don't see significant differences in these regarding qagame given that memory usage differences can be caused by other factors as well. One small leak we have found though, which happens when reading files with Lua scripts.
00000000ef112000 1492 1340 112 r-x-- qagame.mp.i386.so
00000000ef287000 52 52 52 rwx-- qagame.mp.i386.so
00000000ef294000 51236 46484 46484 rwx-- [ anon ]
00000000ef100000 1492 1324 112 r-x-- qagame.mp.i386.so
00000000ef275000 52 52 52 rwx-- qagame.mp.i386.so
00000000ef282000 51236 40912 40880 rwx-- [ anon ]
The major concern seems to be with the etded.x86.
0000000008048000 408 376 0 r-x-- etded.x86
00000000080ae000 20 20 16 rwx-- etded.x86
00000000080b3000 8000 872 856 rwx-- [ anon ]
0000000008996000 149892 149888 149888 rwx-- [ anon ]
0000000008048000 408 376 0 r-x-- etded.x86
00000000080ae000 20 20 16 rwx-- etded.x86
00000000080b3000 8000 832 768 rwx-- [ anon ]
0000000009e77000 9360 9336 9336 rwx-- [ anon ]