Dual xeon vs i7



I assume you are talking about the Broadwell-E i7s as the Broadwell-Hs (i7-5775) are very uncommon. The X5550s are about 10 year old quad core CPUs and the Broadwell-Es are newer 6-10 core units. I would expect especially the 8 and 10 core Broadwell-Es to be faster than a pair of X5550s in anything you would do. The 6 core Broadwell-Es will be much faster in poorly threaded tasks and probably still a little faster in multithreaded tasks as each core has more performance.

I would replace the X5550s in the dual 1366 board with dual 6 core Westmeres (E5645s or better) as they use the same motherboards. Then it becomes more competitive since you have two 6 core chips rather than two quad core chips. The 10 core Broadwell-E will still probably beat the pair of Westmeres in most everything, but a pair of Westmeres should be faster than a single 6 core Broadwell-E in multithreaded tasks.
 
Aug 22, 2019
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Just picked up a T7500 Dual processor unit. goint to upgrade it. Question is, Are the X5690 cpu's worth $75 more than the X5680's. I can get the 5680's for $99 and the 5690's will be $175. Is it worth the price? Also, How will they compare to the i7.
 

86zx

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Nov 1, 2019
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I have a dell t7500 with dual x5680’s and in my experience over clocking a x5660 200mhz doesn’t do a whole lot for these chips only when you overclock them to 4.2-4.5ghz that they start becoming competitive to newer chips, so I’d say go with the x5680’s , I have mine paired with a gtx 1070 and in 1080p the CPUs bottleneck the 1070 but in 4K the gpu ends up being used a lot more and becomes more worthwhile. Just my two cents
 
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