For the next test, we've taken the same high-end, 3-minute AVI file, and encoded it to MPEG-1 using TMPGEnc Plus 2.5. This is a bit less stressful on the system than our previous MPEG-2 encoding, but is very popular for VCD authoring. The performance results are expressed in the form of time elapsed (minutes: seconds) and as with the MPEG-2 results, a smaller bar denotes less time taken, and therefore higher performance.
The Athlon 64 3400+ shows a bit more speed with MPEG-1 encoding, and now comes out of ahead of the Pentium 4-3.0 GHz HT processor. Even so, neither AMD64 CPU can match the TMPGEnc Plus time of the Pentium 4-3.2 GHz. Also keep in mind that these tests were performed with a 3-minute AVI file, so real-world differences could be extrapolated to a 2-hour AVI file encoded to MPEG-1 or -2, and the completion time discrepancy would be much larger, even with these high-end processors.
SiSoft SANDRA 2004 is the latest revision of this popular system benchmark, but sticks to its roots and supplies a wide range of individual benchmarks and system utilities. The memory bandwidth tests are the most popular section of the SiSoft SANDRA benchmark suite, and highlight the potential performance levels of the CPU-memory subsystem.
The SANDRA Integer memory bandwidth scores might be a bit shocking, given the relatively low scores of the Athlon 64 3400+, but keep in mind that this platform features a single channel DDR controller. Even so, its integrated memory controller is still able to surpass the Athlon XP 3200+, while naturally falling behind the Pentium 4 and Athlon 64 FX-51 results.
The SiSoft SANDRA 2004 Floating Point Bandwidth scores follow the same basic trend, with the Athlon 64 3400+ posting a very competitive score for its architecture, but falling back of the more high-end memory subsystems.