Intel to launch 6 core Coffee Lake-S CPUs & Z370 chipset 5 October 2017

[MyBrainz]

Part time streaming is a job for your GPU, surely? I can't stream and record at the same time but I can do one or the other using the GPU without affecting game performance at all.

x264 on the CPU for best quality stream, tried all other methods in endless hours of testing, Twitch 6000kbps bitrate limit and x264 wins every time.

But it is argued that streaming using x264 on the CPU provides a much superior Picture to the viewers.

No argument really, only at higher bitrates is where the gap closes

 

[DragonQ]

But it is argued that streaming using x264 on the CPU provides a much superior Picture to the viewers.

It does but why would you care if doing it "casually"?

I record using 35 Mb/s HEVC hardware encoding, streaming I have to either use AVC hardware encoding or x264 in "faster" preset I think at 5 Mb/s.

 

[8 Pack]

My eyes are streaming at all this talk!!!

 

[Aa83]

My eyes are streaming at all this talk!!!

Heaven forbid your customers using the forums you've provided to talk about future products you'll be selling

 

[MyBrainz]

It does but why would you care if doing it "casually"?

I record using 35 Mb/s HEVC hardware encoding, streaming I have to either use AVC hardware encoding or x264 in "faster" preset I think at 5 Mb/s.

I do x264/faster @ 6000kbps on my 6700K and if i record, even at the same time, i can do 75mbps with ReLive.

The 8700K will just allow me to get a higher quality on the stream, hopefully drop down to 5000kbps and use the medium preset.. will have to see how that pans out

 

[AndreiD]

You'd need a dedicated PC for Medium preset, limit yourself to Faster or Fast.

And I do agree with the other posters, if you're going to stream casually, the quality difference between NVENC and X264 at 5000~6000Kbps with 720p60fps/900p60fps is negligible (especially on Maxwell/Pascal nVidia GPUs, NVENC got pretty good).
Though, I haven't tried AMD's VCE, not sure how the quality with that is.

 

[MyBrainz]

You'd need a dedicated PC for Medium preset, limit yourself to Faster or Fast.

And I do agree with the other posters, if you're going to stream casually, the quality difference between NVENC and X264 at 5000~6000Kbps with 720p60fps/900p60fps is negligible (especially on Maxwell/Pascal nVidia GPUs, NVENC got pretty good).
Though, I haven't tried AMD's VCE, not sure how the quality with that is.

AMD's H.264 isnt very good right now, about Quick Sync quality tbh. Theres a lot of options for it in OBS but i dont have time to try and tweak it all out, and keeping to Twitch's standards is a ballache with CBR, bitrates, keyframe interval etc.

 

[voidshatter]

I just carefully read expreview's review. There's one line of comment:

三颗处理器单线程测试结果基本都一样的，也就是说它们的内核没啥本质的区别，都是Skylake的衍生物。多核性能Core i7-8700K领先Core i7-7700K 46%，而Core i7-7800X的AVX-512指令集继续在Sandra 2017处理器多媒体测试大发神威，把这些测试剔除后它领先Core i7-7700K 42%，实际用起来还不如Core i7-8700K。

In the second set of tests, three CPUs are all set to run at 4.5GHz for an IPC comparison. For multi-thread performance: by excluding tests where the AVX-512 instruction set of the 7800X can make a difference, the 7800X is only 42% faster than the 7700K, while the 8700K is 46% faster than the 7700K.

If the 8700K is still using the Ring Bus architecture and the 7800X is using the Mesh architecture, then this might be the culprit?

 

[AndreiD]

Yeah, mesh is optimized for high core counts, but the different cache hierarchy might have something to do with it too.
7800X tends to get the short end of the stick, but you can see the difference it makes for higher core counts if you look at 6950X vs 7900X multi-threaded tests.
To be honest, I wouldn't really go X299 unless you need AVX512 or platform features like VROC, the 8700K pretty much invalidates that platform for gaming (7700K did too), leaving it just for workstation related tasks or e-peen.

 

[voidshatter]

Maybe 6-core is the limit of the Ring Bus architecture. Beyond that, Mesh might be better.

It appears that (for me) if the goal is to get something for gaming that lasts until DDR5 in 2020, then the 8700K is the best choice. The 7700K is also great for gaming, but it suffers in some heavily-threaded games if the player also streams his play concurrently.

I'd ignore both X299, Ryzen and ThreadRipper - not that I cannot afford these, but while they can do gaming, these are not ideal for gaming.

 

[Perfect_Chaos]

Depends on the game etc. I think anyone with a recent ish CPU should be well off for most games anyway, especially @ 1440p, i might actually hold onto my 5820k until DDR5 arrives.. it's about 2 years away now. I'll see what Ice Lake is like, but DDR5 & PCIE 4 will be just around the corner by then.

 

[8 Pack]

Yeah, mesh is optimized for high core counts, but the different cache hierarchy might have something to do with it too.
7800X tends to get the short end of the stick, but you can see the difference it makes for higher core counts if you look at 6950X vs 7900X multi-threaded tests.
To be honest, I wouldn't really go X299 unless you need AVX512 or platform features like VROC, the 8700K pretty much invalidates that platform for gaming (7700K did too), leaving it just for workstation related tasks or e-peen.

I think 7740X 5.3-5.4 cache 5-5.1 and mems upto 4500 is very good gaming cpu....

 

[Boomstick777]

Man that 8700K power consumption is huge ! Power hungry, hardly any improvement and clocked so high for the little improvement it does have. Intel desperate?

 

[jasonsony735]

Man that 8700K power consumption is huge ! Power hungry, hardly any improvement and clocked so high for the little improvement it does have. Intel desperate?

No one cares about how power hungry it is ! Its better than the Ryzen and thats the main thing its going to be the go too CPU for gamers and streamers who want the best.

 

[chroniclard]

I'd ignore both X299, Ryzen and ThreadRipper - not that I cannot afford these, but while they can do gaming, these are not ideal for gaming.

When your talking 100 FPS vs 120 FPS can people actually notice?

 

[gavinh87]

When your talking 100 FPS vs 120 FPS can people actually notice?

In some games the difference is bigger, like a 20-30 fps increase. Thats like going from a 1070 to a 1080.
The 8700k makes sense to me.

 

[voidshatter]

I think 7740X 5.3-5.4 cache 5-5.1 and mems upto 4500 is very good gaming cpu....

Except that it does't fit the purpose for streamers...

 

[chroniclard]

In some games the difference is bigger, like a 20-30 fps increase. Thats like going from a 1070 to a 1080.
The 8700k makes sense to me.

Yeah but that isn't the point. While it looks great gaming performance I am not sure the majority would actually notice vs a "lesser" CPU, assuming both provide a smooth experience.

Awaiting coherent reviews.

 

[SiDeards73]

Yeah but that isn't the point. While it looks great gaming performance I am not sure the majority would actually notice vs a "lesser" CPU, assuming both provide a smooth experience.

Awaiting coherent reviews.

To be honest the cash you would save buying a Ryzen CPU and god forbid a Vega 56 instead of an 8700K + 1080, you could pretty much buy a Freesync screen with the cash you saved, lower fps? who cares your getting adaptive sync gaming baby

 

[gavinh87]

To be honest the cash you would save buying a Ryzen CPU and god forbid a Vega 56 instead of an 8700K + 1080, you could pretty much buy a Freesync screen with the cash you saved, lower fps? who cares your getting adaptive sync gaming baby

Comes with free flickering, too.