Question i7-9800X or i9-9900k?

May 26, 2019
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i need to upgrade my i7 4790k, ill be using two gtx 1080 ti in sli configuration and three M.2 NVME because i saw tthat both motherboard GIGABYTE AOURUS( Z390 and x299) have three slot for it.
i cant find a benchmark about gaming and video editing comparing both.Ill be using the system for gaming, recording and video editing. i always play at 2560x1440. I dont know about how many pcie lane ill need for that configuration too.

I9-9900k (8/16 3.60 Ghz Max Turbo 5.00Ghz) https://www.intel.co.uk/content/www/uk/en/products/processors/core/i9-processors/i9-9900k.html
I7-9800x (8/16 3.80Ghz Max Turbo 4.40 Ghz) https://www.intel.co.uk/content/www/uk/en/products/processors/core/x-series/i7-9800x.html


PCIE Diagram Z390 AOURS XTREME https://drive.google.com/file/d/1L7YKBNnMJKg1GRj7xOibt7_WQa7Geibh/view
And for the x299 ill use the two top option of motherboard https://www.gigabyte.com/FileUpload/global/MicroSite/473/x299.html

Thanks and have a good afternoon
 

hftvhftv

Honorable
Herald
May 26, 2014
535
50
11,090
The 9800X is going to perform a bit better, but for it being a 165W CPU compared to a 95W CPU, it's all about whether or not you're going to take advantage of the extra features an X299 board offers, and if you plan to upgrade to a CPU with more cores later or not. If your only worry is if it will support your two GTX 1080 Ti's, then the i9 9900K is going to save you a bit of money. With three NVME M.2 drives though, I'd suggest an X299 board. I might also mention that the Ryzen 3000 series of CPUs are going to support PCIe 4.0 which would offer more than enough bandwidth for your configuration, and up to 16 core CPUs on a mainstream motherboard.
 
9900K, every day....

(Have you seen the 9900KS specs? All 8 cores turbo to 5 GHz under load within factory spec, and min base clock is 400 MHz higher as well at 4.0 GHz)

NOTE: This entire recommendation could be outdated within hours, as the new Ryzen 6,8,12 core models are being announced very shortly......(not sure if/when 16 core variants will drop)
 
The 9800X is going to perform a bit better
The mesh architecture was designed more for app. scalability rather than game core speed. Some CPU bound games ofcourse can take advantage of the mesh design, but those are few and far between. The problem with Intels, HEDT platform is that, inspite of the huge number of core counts, the kind of clock speeds they boast of doesnt help them top in games. As you will see below, even a 18 core 9980XE lags behind in most games due to the same reason...

View: https://www.youtube.com/watch?v=BQ57WyzfIHU
 

hftvhftv

Honorable
Herald
May 26, 2014
535
50
11,090
The mesh architecture was designed more for app. scalability rather than game core speed. Some CPU bound games ofcourse can take advantage of the mesh design, but those are few and far between. The problem with Intels, HEDT platform is that, inspite of the huge number of core counts, the kind of clock speeds they boast of doesnt help them top in games. As you will see below, even a 18 core 9980XE lags behind in most games due to the same reason...

View: https://www.youtube.com/watch?v=BQ57WyzfIHU
Oops, I meant it's going to perform better assuming they take advantage of quad channel memory and all features of X299. For games yes the 9900K will do a bit better.
 

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