We expanded on the testing in our AMD Dual Graphics video to include some value optimized discrete GPUs and some other CPU platforms.
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Sponsor link: http://enthusiast.intel.com/
Graphics card overclocking master sheet: https://docs.google.com/spreadsheet/ccc?key=0AmLKAgEko3SAdHFtby1jNTFvaTF2UHhaMzdMQ0FNM2c&usp=sharing
Pricing & discussion: http://linustechtips.com/main/topic/122475-amd-dual-graphics-does-it-work-does-it-make-sense/
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Intro Screen Music Credit: Adhesive Wombat – Check out his channel here: http://youtube.com/adhesivewombat
Outro Screen Music Credit: Approaching Nirvana – Sugar High http://www.youtube.com/approachingnirvana