Question / Help Livestreaming/Gaming Help [i7-7740x vs i7-7800x]

[Co2 Outbr3ak]

It's a fairly simple question. I'm building a new pc, and since processing power and speeds are somewhat leveling out for livestreaming and gaming (for what I play), I want to know what the better option for me would be with no worries.

I want to be able to Livestream on the same computer I'm playing games from, more specifically, emulated games as high up as possibly even Dolphin. I mostly do SNES now. So, with all this going on, which would be better?

Nvidia GTX 1070 [8gb] running with:

i7-7740x [4x core @ 4.3ghz 8mb cache]
OR
i7-7800x [6x core @ 3.5ghz 8.25mb cache]

I don't want to worry about bottlenecking under 4 cores while livestreaming and putting on heavy demand from dolphin, but at the same time will the hex-cores at 3.5ghz keep up? Not sure how many cores are realistically utilized altogether but I'd assume id want more than the 2 cores for each when running simultaneously....

Thoughts?

 

[Harold]

OBS can benefit more effectively up to about 20 threads worth (20 physical cores or 10 with hyperthreading).
The reason for the limit is underlying restrictions in the x264 encoder that cause diminishing returns to kick you in/through the face at that point.

the 7740x is approximately 17.2ghz aggregate as far as the x264 encoder is concerned
the 7800x is approximately 21ghz aggregate.

SNES emulation is low enough that even the raspberry pi model 2 is capable of doing it without lag, so in the end, it's not a factor in choosing the processor.

 

[Co2 Outbr3ak]

Ok but say I wanted to go up and game actually on pc. Say 1080p@60fps game to stream at the same qualoty. Let's just put that into perspective. I don't do a ton of multitasking especially while I stream and have a game running. Just trying to find the better of the 2 for what I want to do.

And like I said from an emulation standpoint were talking Gamecube/Wii games.

 

[alpinlol]

not buying any of those options. Coffee Lake for HEDT is around the corner offering 6C/12T CPUs with higher base clock (i7 8700k) and buying a z370 (~140) + CF CPU (~350) compared to and completely overpriced i7 7740x or an i7 7800x (~360) + x299 Board (~200) all of them can be OCed. Also if buying those CPUs you should be overclocking as well.

 

[Co2 Outbr3ak]

Ok. I've never done much into overclocking simply because I'm hesitant about going too far and even understanding which multipliers would be most efficient. I know 10% is a general rule-of-thumb, and the build I'm wanting to do won't be done until black friday timeframe, still 3 months away. I could make a jump up based on deals at the time but i just wanted to know for what id do what would be most efficient without the bottlenecking i could get.

 

[alpinlol]

Ok. I've never done much into overclocking simply because I'm hesitant about going too far and even understanding which multipliers would be most efficient. I know 10% is a general rule-of-thumb, and the build I'm wanting to do won't be done until black friday timeframe, still 3 months away. I could make a jump up based on deals at the time but i just wanted to know for what id do what would be most efficient without the bottlenecking i could get.

Well overclocking has gotten really simple there are literally 3 variables to take care of core voltage, multiplier and temperature.

Since you are waiting anyway till black friday I would say Coffee Lake CPUs are going to be your best bet for streaming + gaming performance. Though dont forget Ryzen is also there and you can get a B350 Board for ~80 + the CPU Ryzen 7 1700 for ~290 but you have to oc the CPU to 3,8 GHz to be of value.

 

[Co2 Outbr3ak]

Ok, but the generality if my question still hasn't been answered. Would a slower 6-core be better or the faster 4-core for what I'm doing?

 

[Harold]

OBS can benefit more effectively up to about 20 threads worth (20 physical cores or 10 with hyperthreading).
The reason for the limit is underlying restrictions in the x264 encoder that cause diminishing returns to kick you in/through the face at that point.

the 7740x is approximately 17.2ghz aggregate as far as the x264 encoder is concerned
the 7800x is approximately 21ghz aggregate.

SNES emulation is low enough that even the raspberry pi model 2 is capable of doing it without lag, so in the end, it's not a factor in choosing the processor.

 

[Co2 Outbr3ak]

Ok but I stated that's currently what I'm on. I'm looking at PC gaming and streaming as well with the newest games as well as Dolphin emulation, which are substantially more taxing. This is why I'm asking. I won't be doing just SNES since my new build can handle better.