Intel Broadwell Thread

[PPB]

Looks like Broadwell-K is alive and well, available @ close to MSRP in many popular stores. The cancellation rumor turned out to be fake.

Next step Skylake-H 4C/8T GT4e and then Skylake-S 4C/8T GT4e for desktops later this year. Long live eDRAM.

I dont know about replacing my 4790k in the future with a 5775c. I would need more information on required voltage for a mild OC (4,0-4,2). Having to change RAM and mobo is just so unnapealing for upgrading to skylake

 

[superstition]

Marketing 102?

Monopolization 101.

I dont know about replacing my 4790k in the future with a 5775c. I would need more information on required voltage for a mild OC (4,0-4,2). Having to change RAM and mobo is just so unnapealing for upgrading to skylake

The only reasons I can think of to do that:

a) You plan to use a form factor where a discreet GPU isn't an option due to size
b) You plan to move to passive cooling

Otherwise the performance difference is pretty minimal. Anyone who wants to game is better off getting a discreet GPU unless they want to use passive cooling and/or a tiny case. Broadwell C is nice for this because it fits within the wattage limits of a cooler like NoFan's CR-95.

5775C uses up to 100W of power with the iGPU and CPU running power vampires, from what I recall from one review. The CPU alone uses like 55 watts. If running at stock then a NoFan should work since there's no reason to run artificially high stress test program loads.

What I'd like to see is a passive system that pairs the Broadwell C with a Fury Nano. There is a new one that has been announced that supports 100W for the CPU and 100W for the GPU but until we get to 14/16nm it's rather paltry for a discreet GPU given the price of the box.

 

[superstition]

How does it feels to know that you will have to wait for Kaby Lake release in order to get a Skylake with eDRAM? Sure, Skylake with eDRAM would win, but you're missing the minor Kaby Lake GPU enhancements. It is THAT hard to get a latest generation product with all the goodies? Why you always have to do sidegrades and tradeoffs?

Broadwell E isn't even a sidegrade. It's a downgrade considering that the Skylake cores are improved and already on the market.

For gamers, Skylake on the desktop is also a downgrade when compared with Broadwell C. However, at least it's not stuck with a minuscule 16 PCI-E lanes.

 

[ctk1981]

I dont know about replacing my 4790k in the future with a 5775c. I would need more information on required voltage for a mild OC (4,0-4,2). Having to change RAM and mobo is just so unnapealing for upgrading to skylake

1.25V for me to hit 4.0ghz. The 5775c was appealing to me at the time I had an i5 4690K. I use quick sync when encoding video for phones or tablets and the iris pro 6200 makes a big difference vs HD4600. For gaming I rely on a 290x for now.

 

[NTMBK]

Yep, looks like they are yielding at reasonable levels now! Mine's in the mail, will be here today.

Look for a thread today or tomorrow with some gaming benchmarks/impressions on the iGPU (I plan to use it w/ iGPU).

Looking forward to it! What sort of case are you planning? I suspect that Broadwell-C would be great for a compact HTPC build which has still got some serious game.

 

[zir_blazer]

Broadwell E isn't even a sidegrade. It's a downgrade considering that the Skylake cores are improved and already on the market.

For gamers, Skylake on the desktop is also a downgrade when compared with Broadwell C. However, at least it's not stuck with a minuscule 16 PCI-E lanes.

Broadwell-E is a direct upgrade over Haswell-E which is already on the market. Yes, it ain't Skylake, but you can get more Cores (Or better, Dual Processors), PCIe Lanes and RAM Capacity out of it. Not everything is gaming. And as a platform, Broadwell-E is much, much more wide. If money was no issue, I would pick it over Skylake.

 

[tenks]

Broadwell E isn't even a sidegrade. It's a downgrade considering that the Skylake cores are improved and already on the market.

For gamers, Skylake on the desktop is also a downgrade when compared with Broadwell C. However, at least it's not stuck with a minuscule 16 PCI-E lanes.

You're basically saying every HEDT chip has been a downgrade, as the HEDT has always been at least one generation behind the consumer DT parts.

Horrible logic.

 

[Arachnotronic]

Looking forward to it! What sort of case are you planning? I suspect that Broadwell-C would be great for a compact HTPC build which has still got some serious game.

The cheap mid-tower ATX case that the 4790K I had in it was in

Seriously, can't even get this thing to POST yet sadly, and I made sure to update to the latest BIOS (which added Broadwell-C support) before putting it in. Pretty frustrating

 

[Shaun_Brannen]

You're basically saying every HEDT chip has been a downgrade, as the HEDT has always been at least one generation behind the consumer DT parts.

Horrible logic.

Not always. Since Sandy Bridge it has. Nehalem launched on HEDT, for instance (LGA 1366). Before then, the platform didn't really exist.

 

[crashtech]

On one hand it makes sense since the server parts from which HEDT is derived take longer to validate, but surely Intel must know how displeased it makes many of their most affluent customers.

 

[Headfoot]

Yup. I really wish I could have bought Skylake E and not Haswell E in 2015. Makes me less satisfied with my purchase than I could have been knowing that I had to make immediate trade offs even with a fairly large budget. Not that I'm complaining about my 5820k which is awesome

 

[tenks]

Not always. Since Sandy Bridge it has. Nehalem launched on HEDT, for instance (LGA 1366). Before then, the platform didn't really exist.

That was a completely different sku model and UARCH. Nehalam 'HEDT' and DT were the same socket.. It wasn't called HEDT then and there wasn't really a differential. Lynnfield came after, so it wasn't until then there was a segment difference..

sandy bridge was the first in this current setup and has been that way for 5 years now and looks like it will continue.

I knew someone would say something like this..it doesn't change the point I made..

 

[Eddward]

So what if they did some interesting architecture changes regarding IPC and some features to match desktop Skylake in some cases? We do know almost nothing now. It's called Broadwell-E but it doesn't need to be ultimately the same architecture as desktop Broadwell. I assume development of BDW-E cores was still in progress after they finished desktop Skylake cores. Basically I don't believe that Intel is going to release in mid 2016 product with cores based on 2014 architecture with zero changes from what they learned after that. It will be the most up to date product at the time of release and Intel should be aware of it.

 

[VirtualLarry]

So what if they did some interesting architecture changes regarding IPC and some features to match desktop Skylake in some cases? We do know almost nothing now. It's called Broadwell-E but it doesn't need to be ultimately the same architecture as desktop Broadwell. I assume development of BDW-E cores was still in progress after they finished desktop Skylake cores. Basically I don't believe that Intel is going to release in mid 2016 product with cores based on 2014 architecture with zero changes from what they learned after that. It will be the most up to date product at the time of release and Intel should be aware of it.

Uhm, Broadwell cores are Broadwell cores. There's no "Broadwell (mainstream) core" and "Broadwell-E (server) core". At least, I don't think so, other than possibly the server cores are getting AVX512. (Not sure if that was new in the server cores in BDW or SKL.)

Other than that little thing, they are the same basic core, with the same execution units, registers, etc.

 

[ozzy702]

Uhm, Broadwell cores are Broadwell cores. There's no "Broadwell (mainstream) core" and "Broadwell-E (server) core". At least, I don't think so, other than possibly the server cores are getting AVX512. (Not sure if that was new in the server cores in BDW or SKL.)

Other than that little thing, they are the same basic core, with the same execution units, registers, etc.

Short of having different cache sizes, isn't this correct?

 

[Arachnotronic]

Got my 5775c and sadly the iGPU doesn't seem to want to work in my board. Haswell works fine and the 5775c works when I plug in a dGPU.

What a disappointment, good going Intel/ASUS.

 

[Burpo]

Are you using latest bios?

 

[Arachnotronic]

Are you using latest bios?

Yep, made sure to update before I swapped out CPUs.

 

[VirtualLarry]

Short of having different cache sizes, isn't this correct?

Sorry, yes, the server versions have larger caches too.

 

[ShintaiDK]

Yep, core wise the difference first comes with Skylake-E/EP/EX contra Skylake-S/H/U/Y.

 

[Kanadian]

Got my 5775c and sadly the iGPU doesn't seem to want to work in my board. Haswell works fine and the 5775c works when I plug in a dGPU.

What a disappointment, good going Intel/ASUS.

That is strange. I have an Asrock H97 mini-itx board paired with the 5675C and it is working fine. I'd send Asus a message on their chat boards and try to get an answer. Just my 2 cents...

 

[Eddward]

Uhm, Broadwell cores are Broadwell cores. There's no "Broadwell (mainstream) core" and "Broadwell-E (server) core". At least, I don't think so, other than possibly the server cores are getting AVX512. (Not sure if that was new in the server cores in BDW or SKL.)

Other than that little thing, they are the same basic core, with the same execution units, registers, etc.

Well, then it'll be sad, but OK...
According to the AT review it will be still not as bad as we may think.
http://www.anandtech.com/show/9482/intel-broadwell-pt2-overclocking-ipc/3
Moreover if OC will be good.

 

[Arachnotronic]

That is strange. I have an Asrock H97 mini-itx board paired with the 5675C and it is working fine. I'd send Asus a message on their chat boards and try to get an answer. Just my 2 cents...

What model is your mobo and are you using the iGPU? Could be worth buying one identical to yours rather than going SKL. Thanks.

 

[Burpo]

What model is your mobo and are you using the iGPU? Could be worth buying one identical to yours rather than going SKL. Thanks.

http://www.newegg.com/Product/Produ...jKrIITvLGHhJEMmHfn-CsaAhTu8P8HAQ&gclsrc=aw.ds

 

[ShintaiDK]

Gigabyte adds Broadwell-E BIOS support:
http://overclock3d.net/articles/cpu_mainboard/gigabyte_updates_x99_bios_to_support_broadwell-e/1