TMPGEnc 3.0
Video compression is one of the best areas for the Pentium 4 if the application is optimised for its architecture. With the 3.0 version, TMPGEnc is optimized especially for Netburst architecture and also includes SSE3 optimizations. The following results come from the encoding of a 3600 picture DV video in MPEG-2 with a 4000 Kbits /s bitrate, in two paths:
Like with WinRAR, the Pentium M 2 GHz performance is slightly inferior to an 64 2800+ or XP 3200+. Pentium 4s are far ahead thanks to the TMPEGEnc NetBurst optimisation. After Overclocking the Pentium M has approximately equivalent performances to the Athlon 64 3200+ Socket 754, but is still far from the Pentium 4.
VirtualDub / DiVX 5.2.1
The encoding of DiVX via VirtualDubMod is our next test. We used a 1500 picture MPEG-2 file compressed in DiVX 5.11 (with B-Frame and a 1500 Kbits bitrate), with VdubMod in « Fast Recompress » mode.
This is the third time that the Pentium M encounters problems because of its initial 2 GHz frequency. It does, however, provide better performances than a XP 3200+ and almost equivalent performances to an A64 3000+ Socket 939! Thanks to overclocking performances are increased and almost equivalent to the Athlon 64 clocked at 2.4 GHz (4000+, 3800+, 3700+, 3400+) or the Pentium 4 EE. Compared to the P4 Prescott, the Overclocked P-M is slightly faster than the 3.2 GHz version.
