#I5 3570k intel burn test temps series#
Air cooling yields much the same results as it did with Sandy Bridge 'K' Series CPUs with 4.6GHz usually an easy target. OverclockingThe concentration of heat with Ivy Bridge CPUs is proving to be a tricky obstacle to overcome. Under load, the difference was only 1W though.
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At idle, the Core i7-3570K system drew 97W from the wall compared to 114W for the Core i5-2500K - not bad considering the former is roughly 10 per cent faster, has a beefier IGP and 100MHz clock speed advantage. Low power consumption is one of the most trumpeted features of Ivy Bridge and the Core i7-3570K proved to have clear advantages over its predecessor. The Core i5-3570K had a 6fps advantage in Arma II: Operation Arrowhead - a 7 per cent advantage, with older Sandy Bridge CPU being 147 points adrift in the image editing test - again roughly the same in percentage terms. The question most people want to know, of course, is how much faster is it than the Core i5-2500K? The answer is a noticeable but not jaw-dropping amount, usually around 10 per cent, although this was consistent in all of our benchmarks. The difference was even smaller in our game tests with barely single frames between the two CPUs at stock speeds. Where hyper-threading was able to make less of a mark, the Core i5-3570K was only slower by the slightest of margins - a paltry 54 points in the image editing test and 46 points adrift in the multi-tasking test for example.
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It was noticeably slower in Cinebench R11.5 and WPrime 2.05 too - in percentage terms it was over 20 per cent slower in Cinebench but these results are to be expected given the difference in features outlined above and the fact the Core i5-3570K is around £80 cheaper. At stock speeds the Core i5-3570K scored 3,160 in the video encoding test - 301 points or roughly 10 per cent short of the Core i7-3770K. Performance AnalysisThe additional 100MHz core speed, 2MB Level 3 cache and hyper-threading proved to be of a fair advantage for the Core i7-3770K over the Core i5-3570K in several of our tests.