TMPGEnc 4.0 XPress
We are now using the fourth version of this MPEG-2 encoder. Compared to the third, the latest integrates a several optimizations for the Core 2 and improves performances by approximately 5%. For this test, we continue to encode a 10 minute 16 second DV file to MPEG-2 format in 720x576 with an average bitrate of 4500 Kbits in two paths. The video preview display is activated during this test and the DV file is decoded via a Mainconcept codec, which is faster than decoding in TMPGEnc.
Like in WinRAR, gains are relatively interesting at 8% for the dual core and 5% for the quad core.
VirtualDub & DiVX 6.7
We now use the version 1.7.6 of VirtualDub and the version 6.7 of DiVX which has SSE4 optimizations. We encode the same video source as with TMPGEnc in Fast recompress mode and with the DiVX 6.7 codec in one path with an average bitrate of 1500 Kbits /s, highest quality encoding performance, and Experimental SSE4 full search activated in SSE4 or SSE2 mode. The video preview mode is activated during this test.
The integration of SSE4 offers impressive results because the Core 2 E8400 proves to be faster than the QX6850 while this is a « simple » dual core ! Without SSE4, gains are 5% for the Penryn.
