i74790k vs i75820k Rendering 3D Modeling Gaming etc.

Eternal Syn · Dec 17, 2015

Does anybody know how big of a performance difference one can expect to see between the 4790k and the 5820k when it comes to rendering and 3D modeling and things of that nature? I know in gaming the difference in frames is maybe 5 to 7% but after some searching I can't seem to find any clear cut % based improvements moving from a 4790k to 5820k. I'm looking to buy a editing/gaming PC and if the 5820k is only going to give a sub 20% decrease to render times for models and rendering(at the expense of a 980ti, I'd have to get a 980 to keep costs down) then I might as well bite the bullet and go for the 4790k. Btw I plan on overclocking the 5820k to about 4.2 ghz(more if possible) as that seems to be what most people can get

getochkn · Dec 17, 2015

http://www.anandtech.com/bench/product/1320?vs=1260

Some video benchmarks in there.

Main thing is what are doing the 3D/Rendering on software wise. Some apps like more cores, some favor faster cores, some can offload a lot to the GPU, but only Cuda cores, others use OpenCL, some OpenGL. Getting the faster hardware only makes sense if the software can take advantage of it, so narrow down your main 3D/rendering app and then you can see what's going to be a better benefit.

There isn't a lot of GPU accelerated apps yet, except for certain filters or views, or certain cases. RAM has a big impact too.

photonboy · Dec 17, 2015

1) The gaming difference for most games would be close to ZERO.

2) Single thread performance is arguably more important. At some points MOST of your processor can be utilized to render but much of the time having four FASTER cores is noticeably better than having six SLOWER cores.

According to Passmark the i7-4790K has a single-thread rating of 2531, and the i7-5820K is 2006. Sure, the i7-5820K can be overclocked as well but let's just stick with these scores as there's no guarantee that the 5820K will do proportionately better (it's lower because six cores add more heat than four).

*Probably it will overclock better (i.e. 4790K might go to 4.6 and the 5820K to 4.2), but that apparently won't close the single thread gap.

The 5820K total score is about 12,997 and the 4790K is 11227 (which means even if the 5820K could be fully utilized it would only benefit by 16% maybe 25% overclocked, though again that's only SOME of the time. The rest of the time the i7-4790K wins)

2) For programs that support GPU acceleration there seems to be a rapidly diminishing return on performance (a GTX980 might give 5% better than a GTX750Ti for example)

Since you're gaming, just go by what you need/want for gaming.

3) System RAM is very important, as is using an SSD properly (main working file should be on it, and any program links for working folders as well.)

*I'd suggest a minimum of 16GB DDR3/4 but it really varies based on file size, program, settings..

4) Budget?
Since you suggest having to keep price down to a GTX980 that indicates a rough budget. Sure, go ahead and get the GTX980 though I'd drop further to a GTX970 if it meant adding a bit more system memory or an SSD.

There's roughly a $130USD price difference there so you could get 32GB instead of 16GB system memory for example, or even put more towards a better monitor. whatever.

photonboy · Dec 17, 2015

ignore this..

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i74790k vs i75820k Rendering 3D Modeling Gaming etc.

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