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watercooled 4930 or 3930?

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14 Sep 2003
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given the poor overclocking of the 4930k but slightly more performance per cycle against the 3930, if you was setting up a high end water cooled system for desktop work such as editing and databases rather than gaming, which chip would you go for? in other words would you think the higher headroom of the 3930 will be enough to outperform the 4930 with a 24/7 overclock? would go for the 4770 over both?
 
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At present, it looks as though at equivalent clocks, the 4930k performs around 100-200MHz faster than the 3930k (although some of this could be due to slightly faster clocking memory). Most 3930k chips have far higher headroom though.

So a 4930k at 4.5GHz 24/7 is about the same as a 3930k at 4.6/4.7GHz. The voltage you appear to need to get the 4930k to that level, appears on average to be far higher (1.4V+) than the voltage you would need to keep the 3930k at 4.6/4.7GHz. With 22nm cores that sort of voltage is probably bad news 24/7 so you would want to knock it down to less than 1.35V long term I would suggest.

Early days yet though and sadly not many owners putting up bench attempts/temp results.
 
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but as im not gaming and more heavy desktop use like editing videos and photoshop, databases etc, just wondering if raw single thread speed of the 4770k trumps the extra cores of the 3930k. I do think its looking like if you are running big overclocks the 3930k trumps the 4930k, but then theres the better memory controller. I guess it needs more feedback from early adopters and maybe a couple more bios revisions for the mobo to get the most of the ivy-e. Hard call.
 
Soldato
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27 Feb 2012
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If you're not going to be gaming, as per your original post...go for the 4930K. You have the software to use the extra threads, get the better chip! If you can find a 3930k however, go for that. The difference between to two isn't a lot, clock for clock there is less than 5% in it (from early benchmarks, average overclock is a mystery as well)
 
Soldato
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But ebay is a lottery all of it's own

^
I've bought from the bay a couple of times, even with highly rated sellers i cross my fingers and hope what i get through the door is what i bought!

Paypal normally sides with the buyer, so you're fine on that side its just time and hassle if you need to claim.
 
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It's down to the software you're using, the x79 cpus will be better if all cores are used...otherwise the 4770k is better and a fair chunk cheaper.
 
Soldato
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It's down to the software you're using, the x79 cpus will be better if all cores are used...otherwise the 4770k is better and a fair chunk cheaper.

Its not really that simple, A decent board that lets you get the most out of a 4770K will run as much as a X79 board and the 4770K and 4820K are tied as well as the 3820/2700K were, the deciding factor is if you want the extras of X79 (quad channel ram, more PCI-E, hex cores, etc) or the future of Z87 (the possibility of broadwell).
 
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