i7 7700k vs i5 8600k what is better for gamaing and CAD working

jalabi.koko

Prominent
Apr 12, 2018
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hello guys so i've been searching for a new pc and now im confused between two processors
1) i7 7700k no oc with one of the following motherboards MSI Z270-A Pro or ASRock Z270 Pro4 (suggest which one would you rather to buy).
2) i5 8600k no oc with one of these motherboards MSI z370A pro or ASROCK z370 pro 4 .
note: that might help you know the situation the main use of this build is gaming but also sometimes im going to use the cad programs which are really cpu power demanding programs.
and yeah the sound features wont make any different in my case. im not going to use expensive headphones.
so i would really be thankful for the help.
and if i misunderstood anything pls feel free to tell me.
thanks in advance.
 
Solution


i said 8700 - non K.
https://www.idealo.de/preisvergleich/OffersOfProduct/5765851_-core-i7-8700-intel.html
just 50 more, but can be paired with less expensive MB and cheaper cooler.
so 10-20 more is really just few.


The MSI board is what I would recommend, as for the CPU, your looking at a quad core versus a 6 core, the i5 is a 6 core 6 thread CPU and the i7 is a quad core so the i5 should be better for CAD and gaming, also your buying an overclocking capable board and an overclocking capable CPU so why not overclock?
 
no i dont wanna overclock now due to the high cost of the watercooling system but in the near future i will of course :)
but btw can i over clock with just only air cooling
 
https://www.cpubenchmark.net/compare/Intel-i7-7700K-vs-Intel-i5-8600K/2874vs3100

6 of 1, half-dozen of the other. 7700K has better single-thread performance, 8600K theoretically has better multi-core performance.

That being said...

http://www.tomshardware.com/reviews/intel-coffee-lake-core-i5-8600k-cpu,5264-8.html

When they tested in AutoCAD 2016, the i5-8600K had identical performance to the i5-7600K, both at stock & OC'd to the same clocks. Not sure if the i7-8700K's superior performance at stock was due solely to the small clock speed edge (3.7 vs. 3.6 GHz) or not, but I suspect it was probably more because it was a 6C/12T CPU vs. the i5's 6C/6T...which probably means the faster 4C/8T i7-7700K will probably match or exceed the 8600K's performance.
 


i said 8700 - non K.
https://www.idealo.de/preisvergleich/OffersOfProduct/5765851_-core-i7-8700-intel.html
just 50 more, but can be paired with less expensive MB and cheaper cooler.
so 10-20 more is really just few.
 
Solution
Which motherboard and cooler depends on when you buy it. there is always some kind of sale.
Also, you might like something for the look. for the i7-8700, you can go even with https://de.pcpartpicker.com/product/cwPzK8/be-quiet-cpu-cooler-bk009
for i5-8600K overclocked, a bit more massive and more expensive cooler would be required.
for example https://de.pcpartpicker.com/product/YwGkcf/be-quiet-cpu-cooler-bk018
There is no problem to overclock on air. In fact, decent air cooler does same or better cooling at lower noise compared to the 120-240AiO.
 

so i thought about it an i choose to buy the i7 8700 but i do have my old cooler from my i7 3770 i dont know if it can be installed to this cpu (sorry for the ignorance).
and for the i7 8700 i dont need a 5 star MB so a normal one would be enough.
and as well i need an air cooler normal one
 


the cooler can help only to some extent. The thermal bottleneck is the thermal paste between the IHS and CPU die. you can not compensate for it with air or liquid cooler. so stable overclocking to ~5GHz with temps acceptable for 24/7 requires deliding.

The i7-8700 comes with cooler. very crappy one https://static1.caseking.de/media/image/thumbnail/hpit-435_hpit_435_04_800x800.jpg
the cooler from i7-3770 will be compatible as the mounting remains the same.Hopefully it's not the box cooler. Basically any decent 30+ cooler will keep the 8700 both cool and quiet.

As for the motherboard, i'd not recommend the cheapest, but something towards the 100-120 euro. It's an i7 that does consume substantial amount of power. That creates load on the VRM which can overheat on cheapest boards during continuous load and result in system instability or shutdown in a short time and can significantly lower the MB lifespan.
 


In my experience, CAD and especially gaming will leverage a faster GPU more than it will a faster CPU. Try an i7 and a decent board with around 16 or more gigabytes of ram. Then take the rest of your budget and allocate it to a better GPU.