Intel Core 2 Extreme QX9770 & Q9450 in the test: The Ferrari among CPUs

Intel Core 2 Extreme QX9770 & Q9450 in the test: The Ferrari among CPUs

DivX 6.7

Since DivX 6.1 (code name Helium) , the MPEG-4/ASP codec also has dual core processors and, depending on the configuration, achieves an increase in the encoding rate of more than 150Percent. The differences in performance are more pronounced the higher the selected quality level. In previous processor tests, DV and MPEG2 video material was encoded with different quality settings according to DivX 6.1. The results tended to be the same here too. The low quality settings for audio and video encoding selected for DV let single-core processors perform a little better. Due to the greater practical relevance, only the results of the MPEG2 encoding will be published from now on.

DivX 6.7 will be used again , which includes experimental support for the SSE4 instruction sets. With these instructions in conjunction with DivX, Intel has promised a major performance boost for users, which is already beginning to be discernible. At the point, however, a lot depends on the type of viewing. Intel has provided the 'optimal' settings for the best possible result in a small guide, but thanks to settings such as 'no sound' these have little relation to reality. That is why we use our traditional video and keep the previous settings. With the new processor, we are therefore testing the conventional SSE2 optimization, which is currently supported by every CPU, as well as the new but still experimental SSE4 variant. In order not to falsify the final rating, the fastest result of a processor is included in the diagram, but the SSE2 result is also shown for the SSE4 CPUs as an indication.

TMPGenc Xpress 4: MPEG2 to DivX 6.7
Unit: minutes, seconds
  • fastest possibility:
    • Core 2 Extreme QX9770
      with SSE2 5:34 min
    • Core 2 Extreme QX9650
      with SSE2 6:01 min
    • Core 2 QuadQ9450
      with SSE2 6:38 min
    • Core 2 Extreme QX6850
    • Core 2 Quad Q6700
    • Core 2 Quad Q6600
    • Core 2 Duo E6850
    • Core 2 Extreme X6800
    • Core 2 Duo E6750
    • Core 2 Duo E6600
    • Core 2 Duo E6420

On the next page: MPEG 2