I7-7700K or I7-8700K

[lazduc]

I want to build another system. Should I wait for the 8700k which should be out sometime in November or get a 7700k now. Lots of pro's and con's. This system will be for gaming only.

 

The big difference is the 8700k is 50% faster in multi-thread apps. Single type, as in DCS, is only 6-8% faster than the 7700k. It is also $60.00 more.

 

Dont know what the Z370 chipset brings vs Z270?

 

Lots of shared lanes between M.2 and video lanes and other pci-e. Wonder about using my

two 1080ti in sli with a couple of M.2 ssd drives.

 

Anybody have any ideas?

 

Thanks

Laz :D

Edited October 27, 2017 by lazduc
mis-type

[Mr_sukebe]

Whilst DCS might not use it, pretty much anything using DX12 will, possibly even including a later version of DCS.

[Johnny_Rico]

24 total pcie (with both)

 

8 + 8 for your SLI cards

4 + 4 for you 2 x M.2

Do you want to add any other PCie cards ?

 

I am getting an 8700K, because my old mobo crapped itself after 6 years of service

[Chrinik]

24 total pcie (with both)

 

8 + 8 for your SLI cards

4 + 4 for you 2 x M.2

Do you want to add any other PCie cards ?

 

I am getting an 8700K, because my old mobo crapped itself after 6 years of service

 

And before anyone complains, no, 8x PCIe 3.0 does not slow down any current grafics card. They just don´t use all that bandwidth.

[Demon_]

Only $60 more?.. Read my mind :smilewink:

[Phantom88]

I was going to start a 7700K vs 8700K thread yesterday:) Glad you did!!!

My concern is stock GHz Speed...7700K is 4.2GHz while 8700K is 3.7GHz ?? Why no improvement there?

[-archer-]

more cores - less frequency :)

[Demon_]

No, both run at 4.4Ghz (turbo boost) on 4 cores and the 8700K run at 4.3Ghz on 6. More Cache memory.

Edited October 28, 2017 by Demon_

[lazduc]

Well NewEgg just emailed me my auto-notice that they have the 8700k in stock.....well they are all gone......matter of minutes. I missed. I put in another auto-notice. You have to be sitting on your computer to catch it. You miss by a few minutes you lose.

 

A guy has a new 7700k for sale for 280.00. The 8700k wont work with a 200 chipset. So either or. If I can get a 8700k within the next week then thats the way I will go.

 

Anyone else have trouble with a Corsair water pump on your 7700k? Wont order parts until I get the processor.

 

Laz

[Johnny_Rico]

Active Cores

1

2

4

6

Intel Core i7-8700K

4.7 GHz

4.6 GHz

4.4 GHz

4.3 GHz

Intel Core i7-7700K

4.5 GHz

4.4 GHz

4.4 GHz

-

Edited October 28, 2017 by Johnny_Rico

[RaJaN]

Don't buy the 7700k, if the 8700k are not available consider 8600k:

 

 

In many cases the 8600k overclocks better then 8700k.

[Hadwell]

you can overclock the 8700K and 8600K to 5GHz, with good cooling, even higher...

 

if you're going to get a K part, you're going to run a better cooler than that cheap hunk of aluminum intel should really stop including with their cpus, save it for something more useful, like beer cans...

Edited October 28, 2017 by Hadwell

[BitMaster]

Active Cores

1

2

4

6

Intel Core i7-8700K

4.7 GHz

4.6 GHz

4.4 GHz

4.3 GHz

Intel Core i7-7700K

4.5 GHz

4.4 GHz

4.4 GHz

-

 

That depends on XMP and your board manufacturer. In my case, Asus auto-clocks all cores to 4.5G when I switch to XMP profile(s).

[Johnny_Rico]

XMP , is controlling your memory profile (speeds) and your CPU ?

[petsild]

With a good heatsink and delid the CPU can be switched to the enhanced turbo, then they will go all the cores to 4.7 GHz quite easily. I'm just afraid that more than 4 cores on the engine DX11 are useless.

[BitMaster]

XMP , is controlling your memory profile (speeds) and your CPU ?

 

On Asus and at least MSI boards XMP can also increases your All-Core max speed . It also did so on Z170 with my Asus and MSI boards.

 

Asus calls this feature "All-Core Enhancement", it's optional tho, you can choose Yes or No to ACE when exiting XMP activation.

[uri_ba]

I'm in the process of moving my cockpit around the house.

 

But I've using that as an excuse to upgrading my computer, I'm upgrading from i7-2600K to a 8700K.

 

I'm going to do my best in benchmarking things as I go in a DCS oriented way (VR and 4K). it will probably take me a while to get everything set up, benchmarked, crunched, compiled and published. but it should help out.

 

But just a foot note, I get over 130FPS on average on "High" preset with my 2600K on a 4K monitor (GTX1080).. I have no clue why anyone should upgrade a CPU for DCS on a 2D screen.. I'm only upgrading only in hopes to get better Performance in VR. (again, this will be answered after I finish doing all the stuffs)..

[Johnny_Rico]

On Asus and at least MSI boards XMP can also increases your All-Core max speed . It also did so on Z170 with my Asus and MSI boards.

 

Asus calls this feature "All-Core Enhancement", it's optional tho, you can choose Yes or No to ACE when exiting XMP activation.

 

I wonder if gigabyte have this ?

Looking to build a new system but would prefer a gigabyte board (more reliable)

[Abburo]

8700k is the new king CPU for gaming ... this is a fact!

 

Besides the highest per core speed it have the advantage of best single core processing power. These features along with higher bandwidth to MB with z370 chipset (over previous intel implementations) makes 8700K a no brainer choice. I would not go with any compromise and better wait more time to cash some extra money to get it.

 

PS: just to be more clear: 8700K ---- only this version

Edited October 30, 2017 by Abburo

[BitMaster]

I wonder if gigabyte have this ?

Looking to build a new system but would prefer a gigabyte board (more reliable)

 

 

Download and read the manual of those Gigabyte boards. Should be listed and explained

 

 

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