CPU for the DX12/Vulkan Gaming Era - 6 cores or 8?

[mnewsham]

- clocks better than Haswell-E and has higher IPC so that covers a bit of advantage 5820k might have when using 12 threads

No it doesn't, we can even use the Cinebench 11.5 thread on this board to show how wrong this is.


The top 3 quad core results in the thread are no surprise 6700 or 6700k CPUs



Deders _________ i7-6700K ____________ 4.78GHz | 11.34
Bushwicktrini __ i7-6700K ____________ 4.70GHz | 11.33
crashtech ______ i7-6700 _____________ 4.56GHz | 11.07


Here are some 5820k results.

crashtech __________ i7-5820K ___________ 4.62GHz | 15.06
RaistlinZ __________ i7-5820K ___________ 4.55GHz | 15.00
exar333 ____________ i7-5820K ___________ 4.50GHz | 14.46
biostud ____________ i7-5820K ___________ 4.40GHz | 13.68
mnewsham ___________ i7-5820K ___________ 3.70GHz | 11.80


Even at 3.7GHz (stock is 3.3GHz) the 5820k is clearly going to win in something properly threaded against a 6700k even though it's at 4.8GHz, a whole 1.1GHz faster and being a whole generation newer.

For anything that can use more cores, the 5820k is obviously going to be a better value considering how close in price it is to the 6700k.

 

[zlejedi]

Which is still better result than Haswell 4 core:

crashtech ______ i7-4790K ____________ 5.00GHz | 10.97
Udgnim ......... i7-4770K ............ 4.80GHz | 10.55
ElaphSK ________ i7-4790K ____________ 4.70GHz | 10.28
RaistlinZ ______ i7-4770K ____________ 4.55GHz | 10.00

So as I said it at least partially covers difference in number of cores

And that's cinebench which scales nearly perfectly which games most likely won't do

 

[mnewsham]

which games most likely won't do

Is the benchmark you posted supposed to show the 6core+HT falling behind? because it scales decently there compared to the 4core+HT.

Assuming most DX12 and Vulcan games are similar, I really don't see the downside of the 5820k over the 6700k, even if your main concern is gaming. And assuming you do any work requiring more threads, the 5820k will just be able to show off even more.


I personally do encoding and the 5820k is nice to have.

 

[zlejedi]

It shows what it needs to show that scaling from 4/8 to 6/12 isn't anywhere near what cinebench shows

Downside is price and performance in everything that doesn't scale beyond 4 threads.

 

[Heatshiver]

Would settle for an 8-core, but hot diggity a 10-core is the stuff!