AMD Launches 125W Phenom II X4 965 CPU

AMD Launches 125W Phenom II X4 965 CPU

POV-Ray, x264 HD, WME9, Folding@Home

POV-Ray:

POV-Ray is a free raytracing program. Version 3.7 beta has 64bit support and native SMP capability. We used the built-in benchmark to test multithreaded performance.

x264 HD Benchmark:

x264 is a free library for encoding H264/AVC video streams. Tech ARP has a nifty benchmark app to bring some automation and standardization to the encoder. Simply execute a batch file and it will run three tests using two different encoder versions. We are only reporting the newest version since its scores are a little better. This is multithreaded and maintained very high CPU usage, especially during the second pass.

Windows Media Encoder 9 - x64 Edition:

Windows Media Encoder 9 x64 Edition is free from Microsoft and is yet another multithreaded app. The conversion was actually a two pass process, but WME only reports a final time. The first pass doesn't fully utilize all CPU power, but the second pass comes pretty close to full utilization. For this test we used a 10 Min ~130 MB video to re-encode to the 2Mb/s DVD quality format.

Folding @ Home Benchmarks:

We at EXTREME Overclocking are Folding @ Home nuts! If you fold then you have probably seen the EOC Folding Stats pages. Using the Folding@Home benchmark CD created by notfred, we ran the benchmark64 app to get these numbers. The benchmark doesn't run any of the new SMP work units, but it does give general relative performance of each processor.

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Intel Core i7 Mobile CPU (Clarksfield) Review

Intel Core i7 Mobile CPU (Clarksfield) Review
LAME MT and X264 Encoding

In our custom LAME MT MP3 encoding test, we convert a large WAV file to the MP3 format, which is a popular scenario that many end users work with on a day-to-day basis to provide portability and storage of their digital audio content. LAME is an open-source mid to high bit-rate and VBR (variable bit rate) MP3 audio encoder that is used widely around the world in a multitude of third party applications.In our custom LAME MT MP3 encoding test, we convert a large WAV file to the MP3 format, which is a popular scenario that many end users work with on a day-to-day basis to provide portability and storage of their digital audio content. LAME is an open-source mid to high bit-rate and VBR (variable bit rate) MP3 audio encoder that is used widely around the world in a multitude of third party applications.

In this test, we created our own 223MB WAV file (a hallucinogenically-induced Grateful Dead jam) and converted it to the MP3 format using the multi-thread capable LAME MT application in single and multi-thread modes. Processing times are recorded below, listed in seconds. Shorter times equate to better performance.

The Core i7-920XM puts in a very strong showing on our LAME MT test, but its multi-threaded performance is still only on par with that of the 2.8GHz Core 2 Duo X9000-based Dell notebook. In fact, with the exception of the Core 2 Quad 9400, all of our comparisons systems were at least as fast as the Core i7-920XM or faster when it comes to multi-threaded performance on this encoding test. If you look at the scores, however, you will see that there is a very tight grouping here with very similar multi-threaded performance among them. There is a wider range of performance with the single-threaded encoding performance, and here the Core i7-920XM comes out on top--in part because the test's single-threaded workload enabled the CPU to scale up to 3.2GHz using Turbo Boost. Even though the Core i5-750 also scales up to 3.2GHz with Turbo Boost, the Core i5 processor lacks Hyper-Threading--which is what gives the Core i7-920XM the edge over the Core i5-750 here.

The x264 benchmark measures how fast a system can encode a short, DVD quality MPEG-2 video clip into a high-quality H.264 HD video clip. The application reports the compression results in frames per second for each pass of the video encoding process, and it is threaded so it can take advantage of the additional resources afforded by multi-core processors.

On this HD video encoding test, the Core i7-920XM was significantly faster that the 2.8GHz Core 2 Duo X9000-based Dell notebook. This is an indication that the new Core i7 Mobile platform should be much more efficient at encoding video than the Core 2 Duo processor--an increasingly important task for all platforms. On the other hand, all but one of the desktop-based CPUs handily beat the Core i7-920XM with their encoding speed. While the mobile processor may have come a long way in its performance capabilities, a modern desktop CPU is still the better choice when it comes to encoding video quickly.

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