Conclusion
FullHD
Having a closer look at the results measured with FullHD
resolution we see, that the performance differences are rather small. Comparing the Core
i7-5820K with stock clocks to the Core i7-5930K also running stock clocks we find a
difference of 1.58 percent on average. A closer look at the values gathered
reveals that Sleeping Dogs shows the largest difference at this resolution. In
this case we're talking about a 4.6 percent gap between the Core i7-5930K and
the i7-5820K. Overclocking the processors to 4.5 GHz made as near as no
difference regarding the percentage differences.
1440p
With the resolution set to 1440p
we basically see the same tendencies like with FullHD although scaling with the
Core i7-5930K is a little bit better. The average performance
difference between a Core i7-5820K and a Core i7-5930K at stock clocks is 2.43 percent. Apparently this is virtually nothing. Browsing through all
the individual results we again find a spike with Metro Last Light, where the
difference is 7.07 percent towards the i7-5930K.
UHD
Even at UHD things are
not becoming more
interesting. Having a look at the average values, we see that the Core i7-5930K
at stock clocks is 2.11 percent quicker than the Core i7-5820K with standard
settings.
The overall results might not be impressive again, but nevertheless there is an interesting spike
again this time. It's again Metro Last Light which benefits the
most from the Core i7-5930K with a 6.93 percent difference
to the Core i7-5820K at stock clocks.
Power consumption
This is where we really seeing big differences.
In idle the system with Core i7-5930K needs 2.94 percent more power and under
load the difference is 1.69 percent. Overclocking the Core i7-5820K to 4.5 GHz
makes the system pull 56 percent more power from the wall in idle and 10 percent
more when under full load. In the case of the Core i7-5930K system power
consumption goes up by 59 percent in case of idle and 13 percent regarding load.
Recommendation
Overall we see that CPUs
aren't bottlenecking todays gaming rigs. Even at FullHD the impact of a faster
graphics card is much bigger than the CPU. Nevertheless
it was interesting so see that there are some games where the framerates at UHD
are quite a few percent higher when using an i7-5930K. Should you be thinking
about buying one of the CPUs we've had a look at in this article, we can tell
you that the performance difference in case of gaming is marginal. In our
opinion this will not justify what you have to pay on top for a Core i7-5930K.
