[Ffmpeg-devel] Fixed vs. Floating Point AAC

Matthias Wieser mwieser
Thu Mar 9 23:48:15 CET 2006


More similar benchmarks:

PII-P4:
http://www.realworldtech.com/forums/index.cfm?action=detail&PostNum=1743&Thread=24&entryID=37432&roomID=11
K8:
http://www.realworldtech.com/forums/index.cfm?action=detail&PostNum=1743&Thread=50&entryID=38112&roomID=11
Prescott:
http://www.realworldtech.com/forums/index.cfm?action=detail&PostNum=1743&Thread=31&entryID=37801&roomID=11
Yonah: 
http://www.realworldtech.com/forums/index.cfm?action=detail&PostNum=1743&Thread=72&EntryID=63501&RoomID=11

For example:
-------------------------
Intel Code Duo (Centrino)
CPU features:bfe9fbff
  Unit                            Latency  Throghput
ALU                               1.01       0.52
IMUL                              4.00       1.00
ISHIFT                            1.00       1.00
ISHIFT(NetBurst Opt.)             1.01       1.39
x87 ADD                           3.00       1.09
x87 MUL                           5.00       2.02
MMX ADD                           1.01       0.51
MMX MUL                           3.00       1.05
SSE Scalar SP ADD                 3.00       1.07
SSE Packed SP ADD                 3.01       2.06
SSE Scalar SP MUL                 4.00       1.00
SSE Packed SP MUL                 4.00       2.01
SSE2 Scalar DP ADD                3.00       1.07
SSE2 Packed DP ADD                3.01       2.06
SSE2 Scalar DP MUL                5.00       2.00
SSE2 Packed DP MUL                5.00       4.01
SSE2 Packed INT ADD               1.18       2.01
SSE2 Packed INT MUL               3.01       2.06
x87 MUL+ADD                       8.00       2.16
x87 ADD+MUL+ADD                   9.00       2.52
MMX MUL+ADD                       4.00       1.72
MMX ADD+MUL+ADD                   4.48       1.95
[...]

Regards,
  Matthias





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