* Windows is a trademark of Microsoft Corporation for the USA and other countries. * Product characteristics may change without notification. Pegasys continues to improve the TMPGEnc 3.0 XPress optimization, heading to a better product quality. * At an instruction level it takes 10x the normal time, there is no anomaly in such results. In each parts of TMPGEnc are codes using such instructions, especially the DCT or NR filters. This is a particularity of the Opteron and Athlon 64 processor and it is possible a change in the future version brings improvements. The reason is if SSE and SSE2 floating point instruction and integer instruction are used in a situation where they are dependant each other, performance dramatically decrease*. We found that when the SSE2 instructions are enabled with the Opteron and Atholon64 processor, execution speed decrease. Through the results of the benchmark test conducted by our Company, we can verify the process speed acceleration effect of the SSE3 optimization of TMPGEnc 3.0 XPress. Results may change according to the hardware configuration. ** This benchmark is provided for information only. MPEG-2 file input and output on the same hard disc drive. Video: DVD NTSC, CBR 6000 Kbps, high precision movement estimationĬPU: all possible instruction sets enabled Re-encode the file above in MPEG-2 with TMPGEnc 3.0 XPress
TMPGEnc 3.0 XPress SSE3 optimization test results
Achieved code optimization by single purpose performance comparison with past Intel Pentium 4 processor with HT Technology models.Reduction of the entire program memory access penalty.Memory access acceleration during the essential movement estimation process when encoding to MPEG.
Moreover, software optimized for previous version of the Intel Pentium 4 processor with HT Technology will also take advantage of the new performances, providing an overall acceleration. The SSE3 shows especially spectacular results in movement search routine acceleration. TMPGEnc 3.0 XPress uses the new memory access instructions in the latest Intel Pentium 4 processor with HT Technology and also optimize the MPEG-1/2 encoder. Processing speed increase by the SSE3 in TMPGEnc 3.0 XPress Video encoding is a performance hungry task and new 90nm process based Intel Pentium 4 processor with HT technology provides great working environment." Kevin Sellers, Director of marketing, Intel K.K. "Intel welcomes the release of TMPGEnc 3.0 XPress which is tuned for new Intel Pentium 4 Processor with HT technology. The new TMPGEnc 3.0 XPress currently in development (first release planned for Summer 2004) is optimized for the latest Intel Pentium 4 processor with HT Technology and also the previous Pentium4. Compared to previous versions, software optimized for the SSE3 realize better process performances and efficiency. The Intel Streaming SIMD Extension 3 (SSE3) is a set of multimedia extension instructions included in the new HT technology Intel Pentium4 (codename Prescott) produced with 90 nm techniques.
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