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Intel Core 2 Duo E7400 vs E8600: The battle of the caches!
Intel Core 2 Duo E7400 vs E8600: The battle of the caches!
A returning question on many enthusiast discussion forums is which Intel CPU to choose for your S775 setup, the high end E8600 or the more budget friendly 7 series? We take a closer look at the advantages of the E8600 and its 6Mb L2 cache, versus the more affordable E7400 with only 3Mb L2 cache, which one offers the best bang for the buck? Read on to find out.
Author leeghoofd
Editor jmke
Date 2009-03-13
Discuss 34 comment(s)
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  Introducing the contenders

In the blue corner we got the E7400 ( retailing around 120-150 euros ). In the red corner the awesome E8600 (in many shops available at twice the price of the E7400 ) Both CPU's are based on the "Wolfdale" core and therefore are both 45nm Dual cores. Main differences are the amount of Level 2 cache ( 3 vs 6Mb ) and the FSB ( 266 vs 333FSB ) More technical details are in the table below :

Madshrimps (c)


As you can see there's not much separating these 2 CPU's, besides the 0.5 extra multi (E7400) and the Virtualisation Technology available for the E8600.

The main objective of this article is to find out if the cache is really worth the premium price. The FSB difference between both CPU's can be corrected by running a small OC. For those that do not want to touch any of the bios settings, testing will be also conducted at the following speed : 10 X 266FSB = 2.66Ghz (so basically at E7300 speeds). Second test will be done at E8600 speed : 10 X 333FSB = 3.33Ghz. Most enthusiasts run these CPU's daily at 4ghz or higher. I opted for 2 different FSB speeds ( 10 x 400 and 8 x 500 ) This approach was chosen to determine if the Level 2 cache gets any benefits from a higher FSB and secondly to see if there's a better scaling in favour of the E8600 with its larger cache.


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