Conclusion
In the past few months we have
published a lot of these CPU gaming performance articles. So far we've always
compared two models with one another to give direct advice if an upgrade would
be worth your money or not. Since quite a few readers have been asking to
compare Haswell, Ivy Bridge and Sandy Bridge in one article, well here it is.
Last week we've been looking at quad core CPUs without Hyperthreading and this
week it's time to have a closer look Sandy, Ivy and Haswell with HT.
Especially when the graphics card is the bottleneck in your setup, performance
differences are virtually inexistent and when even overclocking all CPUs to a
whopping 4.5 GHz doesn't change anything on these results, then it can be
considered as proven, that the CPU is really not crucial in a gaming setup. As
long as a graphics card, when dealing with high resolutions, can account quickly
for a 20 to 50 percent performance bump at high-resolutions, then the single
digit change you get by swapping CPUs doesn't matter at all. If you only use
your computer for gaming, then buying always the latest CPU is a waste of money.
Apparently when reducing resolutions drastically, or in other words opening the
bottleneck of the VGA, then you clearly see that there have actually been
improvements made.
Having a closer look at test results conducted with high resolutions, shows the
same surprise we already found with quad core parts without HT, which means that
Ivy Bridge is a tiny little bit faster than Haswell. The only thing that
actually went different than expected was the Core i7-2600K being slower than the
other CPUs. In case of lower resolutions, or in other words open the VGA
bottleneck, we measured three percent performance difference between the Core
i7-2600K and the Core i7-3770K as well as another four percent between the Core
i7-3770K and the Core i7-4770K.
When it comes to power consumption, we once again see, that the Core i7-3770K is
the CPU that convinces the most. Equipped with the CPU our test system needed
the least power. Overall we can say, that since Sandy Bridge there have been
some improvements, but from Ivy Bridge to Haswell there is nothing more than
stagnation. Should you have bought a Core i7-3770K then there is really no need
at all to move to a Haswell CPU. Gaming performance between Haswell and Ivy
Bridge is almost identical and Ivy Bridge even runs more efficiently. Other than
that Ivy Bridge runs cooler, which means it can be overclocked better. Overall
we come to the conclusion that if you bought an Ivy Bridge CPU back in the days,
that was a really good decision.