ram memory channels

[Daniel__18]

8 gigs dual vs 4 gigs quad channel memory on z170
Is there a performance difference between a cheaper ddr4 from crucial compared to the more expensive ddr4 from g.skill ripjaws v series
Both are 2133 mhz only the crucial dosent come with fancy heat sinks

 

[Rogue Leader]

If they run at the same speed (ex 3000mhz) the difference is minimal. If not the difference can be a lot bigger but mostly noticeable in benchmarks, vs real life.

EDIT: Saw your post update,

They should run basically the same, that said the heatsinks help if you overclock the system to help dissipate heat if the system is driven harder (or you decide to overclock the memory which is generally tricky).

 

[SkyNetRising]

z170 doesn't support quad channel memory operation.
Even with 4 ram sticks it will still run dual channel.

 

[geofelt]

First of all, skylake supports only dual channel operation.
You need a kit with 2 sticks for that.
The two sticks need to be matched, so do not fall into the trap of buying two separate sticks which might be cheaper.
Also, buy your max ram up front, do not plan on adding ram later, it will not be supported by any vendor, and may well not work properly.

Fancy heat spreaders are mostly marketing.
They have value only if you are into record seeking ram overclocking.
Moreover, tall heat spreaders may impact the fins on some coolers. Best to buy low profile or no heat spreaders.

Lastly, skylake is largely insensitive to ram speeds. 1.2v dddr4 2400 is about right.
Faster ram will need higher 1.35v and that tends to inhibit your cpu overclock.
Here is a report on skylake ram scaling.
http://www.silentpcreview.com/article1478-page1.html