CPU clock speed vs cache. What should i aim for ?

Bertrand

Honorable
Aug 14, 2012
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0
10,510
I am trying to build a powerful xeon rig with xeon e5 2620 v3 and 64 gb of ram. My current setup of i7 3770k is at 100% load when i run 3 of the applications i need running, (multiboxing a pc game).

I was told that xeons are much better at performing multiple tasks at once so here i am trying to figure out why. On the intel page says that i7 3770k is clocked at 3.5 GHz and sitting at 8 MB intel smart cache, whereas the xeon e5 is at humble 2.4 GHz frequency although seems to have almost double cache memory sitting at 15 MB.
Xeon: http://ark.intel.com/products/83352/Intel-Xeon-Processor-E5-2620-v3-15M-Cache-2_40-GHz
Intel i7: http://ark.intel.com/products/65523/Intel-Core-i7-3770K-Processor-8M-Cache-up-to-3_90-GHz

I am trying to figure out what is the thing that makes the xeon so much more powerful compared to core i7 series at dealing with multiple tasks, is it the number of cores/threads and cache size, or is there something else not listed here that is fundamentally different when performing certain tasks compared to the i5-i7 core series ? I am about to invest a lot of money but i am a bit reluctant seeing the lower frequency of the xeon, is that something i should be worried about ? Should i look for higher clocked xeon, or the clock speed is not that important for gaming ? Keep in mind the i7 is at 95-100% load when launching 3 games at the same time.

 

BrandonYoung

Reputable
Oct 13, 2014
1,114
1
5,960
The xeon has more cores than your i7 (6 vs 4).

However there are i7's with even more cores, and a higher clock rate, that would probably be more useful to you. For instance, the i7-5960X has 8 cores, and the 5820K has 6 cores.

The extra cache of the xeon wont benefit games more than a faster clockspeed.