Intel Sandy Bridge Core i5-2500K & Core i7-2600K Processors Review

Author: MAC
Date: January 2, 2011
Product Name: Intel Core i5-2500K & Core i7-2600K
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System Benchmarks: LFE / Photoshop CS4 / x264 HD

Lame Front End

Lame Front End v1.0 is a single-threaded application, which means that it only utilizes a single processor core. This will obviously limit performance but it will allow us to gauge a processor's single-threaded performance as well as test any turbo feature that it might have. We will be encoding a WAV rip of Santana’s Supernatural album and converting it to MP3 using the highest fidelity VBR 0 quality preset.

Photoshop CS4

For the image editing portion of this review, we will use Photoshop CS4 in coordination with Driver Heaven’s Photoshop Benchmark V3, which is an excellent test of CPU power and memory bandwidth. This is a scripted benchmark that individually applies 15 different filters to a 109MB JPEG, and uses Photoshop’s built-in timing feature to provide a result at each test stage. Then it’s simply a matter of adding up the 15 results to reach the final figure.

x264 HD Benchmark

x264 HD Benchmark v1.0
Test: MPEG-2 HD 720P Video Clip Conversion to x264
DVD Video Length: 30 Seconds
Comparison: FPS of Second Pass

x264 is quickly becoming the new codec of choice for encoding a growing number of H.264/MPEG-4 AVC videos. Think of it as the new Divx of HD and you can understand why we felt it critical to include. Tech Arp's recent development of the x264 HD Benchmark takes a 30 second HD video clip and encodes it into the x264 codec with the intention of little to no quality loss. The test is measured using the average frames per second achieved during encoding, which scales with processor speed and efficiency. The benchmark also allows the use of multi-core processors so it gives a very accurate depiction of what to expect when using encoding application on a typical full length video.


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