Intel Broadwell Thread

[DrMrLordX]

1.4v for 4.4Ghz - that's just terrible.....

It is, though I'm looking at the link now, and I see nothing showing voltage or any other setting. Was that data removed?

 

[Dave2150]

It is, though I'm looking at the link now, and I see nothing showing voltage or any other setting. Was that data removed?

Click one one the the benchmark results on the link, and you get presented with a screenshot showing CPUID for that test.

For example, Samba Pifast:

Spoiler

1.437v for 4.5Ghz

 

[SAAA]

Yes 1.4V doesn't look good but that's half the picture: what about temperatures, also that's on air cooling...
Then the performance of a 4.2-4.4GHz Broadwell might be that of a 4.8-5GHz Haswell considering the benches at stock are so close to the 4790K, but with lower power or heat. I'd call that an improvement if it's stable, just not a max performance increase.

 

[frozentundra123456]

Since there is no other Broadwell desktop SKU, those are not only replacements for the Haswell-R but for Haswell desktop in general.

No, Haswell "refresh" was the replacement for Haswell.

 

[tential]

I'm just going to wait out the Broadwell launch for 1-2 months until Skylake launches.

At those prices I don't think Intel is going to sell many of them unless people just absolutely don't want to buy a socket 1151 Z170 board and some new DDR4 memory.

Might as well merge this thread right into the Skylake thread.

Obviously a nobrainer that broadwell on desktop isn't something we care about as much as Skylake. Skylake is almost here, I want to see Broadwell's improvement over Haswell when OC'd to get an idea of where Skylake will end up though.

 

[AtenRa]

No, Haswell "refresh" was the replacement for Haswell.

Yea ok, its the replacement for Haswell Refresh then

 

[AtenRa]

Obviously a nobrainer that broadwell on desktop isn't something we care about as much as Skylake. Skylake is almost here, I want to see Broadwell's improvement over Haswell when OC'd to get an idea of where Skylake will end up though.

According to some sources, Skylake will be much better than Haswell and Broadwell.

 

[Phynaz]

None, as of now its a paper launch.

Following in AMD's footsteps :biggrin:

 

[TechyGeek]

1.437v for 4.5Ghz - I'm so glad I went with 4790k.

These volts are nowhere near safe for 14nm. Mine does 4.8 at 1.29.

 

[Dufus]

Then the performance of a 4.2-4.4GHz Broadwell might be that of a 4.8-5GHz Haswell

The PiFast a tad under 4% with that bench by my reckoning, so 4.8GHz BDW would be a little under 5.0GHz for HSW. Wprime seems to do better.

 

[MrTeal]

These volts are nowhere near safe for 14nm.

You're basing that statement on what?

 

[LTC8K6]

More than a 1ghz overclock is never bad, is it?

3.3 is stock for a 5775C, so 4.3 would already be a 1ghz overclock.

 

[frozentundra123456]

Yea ok, its the replacement for Haswell Refresh then

No, Skylake is the replacement for haswell refresh. But you can call Broadwell C whatever you want I suppose and say how bad the cpu performance is if that makes you feel better.

 

[frozentundra123456]

1.437v for 4.5Ghz - I'm so glad I went with 4790k.

These volts are nowhere near safe for 14nm. Mine does 4.8 at 1.29.

Sounds like you got lucky though. I wonder of Broadwell C or Skyalke K have the improved TIM of Devil's Canyon.

 

[TechyGeek]

2 things folks:
1. 1.4X volts is not safe for 22nm haswell, so how can it be safe for 14nm?
2. I bought my chip from siliconlottery.com - you're welcome.

 

[AtenRa]

No, Skylake is the replacement for haswell refresh. But you can call Broadwell C whatever you want I suppose and say how bad the cpu performance is if that makes you feel better.

No, Skylake is the replacement for Broadwell.
Just because Intel messed up with broadwell doesnt mean its not a Haswell replacement. It is after all a direct replacement for the same socket. Everybody last year was made to believe by Intel that Broadwell was a direct replacement for Haswell. Everyone was recommending socket 1150 last year for the upgradability to Broadwell.

I Dont believe I have mentioned anything about the CPU performance did i ???

 

[DrMrLordX]

2 things folks:
1. 1.4X volts is not safe for 22nm haswell, so how can it be safe for 14nm?

It wouldn't be, unless the leakage current is significantly lower.

 

[frozentundra123456]

No, Skylake is the replacement for Broadwell.
Just because Intel messed up with broadwell doesnt mean its not a Haswell replacement. It is after all a direct replacement for the same socket. Everybody last year was made to believe by Intel that Broadwell was a direct replacement for Haswell. Everyone was recommending socket 1150 last year for the upgradability to Broadwell.

I Dont believe I have mentioned anything about the CPU performance did i ???

Do you have a link to where Intel stated desktop Broadwell was to replace Haswell? Granted that would be the normal cadence, but it has been long known that there would be no desktop broadwell.

 

[crashtech]

Do you have a link to where Intel stated desktop Broadwell was to replace Haswell? Granted that would be the normal cadence, but it has been long known that there would be no desktop broadwell.

Socketed Broadwell IS desktop Broadwell, we could go back and forth on this all day, but even if its intended use is SFF, it's still desktop class and it is being called so by reviewers.

BUT, there are no real Broadwell replacements for the "K" series chips, or most of the mainstream product line, for that matter. It's a bit of an anomaly compared to Intel's usual practice (obviously), which of course can fuel a never-ending back and forth.

 

[coercitiv]

You hear that Broadwell? You're just a puny midget, a low power mistake, and you'll never make it to the Big League! Doesn't matter you're so close to your elder brothers, low power can't jump! Get it Mr. Fancy Cache?! Oh for crying out loud, this kid is autistic, don't we have some older socket we can send it to?! I wish you were a SoC!

 

[Idontcare]

You hear that Broadwell? You're just a puny midget, a low power mistake, and you'll never make it to the Big League! Doesn't matter you're so close to your elder brothers, low power can't jump! Get it Mr. Fancy Cache?! Oh for crying out loud, this kid is autistic, don't we have some older socket we can send it to?! I wish you were a SoC!

that made me laugh :thumbsup:

Broadwell gets the unfortunate distinction of being the middle-child between Haswell and Skylake.

 

[Lepton87]

That L4 cache really saves the day for BW, it compensates for the loss in frequency well enough to be worth it for some people, but that really spells trouble for BW-E. BW-E won't have L4 cache to compensate for the lower clocks, so what will it have instead? 8 Cores for non-extreme editions? I can't think of anything else that would make BW-E appealing.

 

[Enigmoid]

That L4 cache really saves the day for BW, it compensates for the loss in frequency well enough to be worth it for some people, but that really spells trouble for BW-E. BW-E won't have L4 cache to compensate for the lower clocks, so what will it have instead? 8 Cores for non-extreme editions? I can't think of anything else that would make BW-E appealing.

Higher speeds and lower power use. Possibly significantly lower power use. Otherwise yeah I agree with you.

 

[Lepton87]

Higher speeds and lower power use. Possibly significantly lower power use. Otherwise yeah I agree with you.

HEDT buyers don't really care about a few watts of power, otherwise they wouldn't OC. My CPU power consumption skyrockets after OC. It goes from 2XXW to over 400W under CPU load. Why do you think it will clock higher when that's not the case with other BW CPUs? If anything top frequency has gone down. That leaves us with about 5% higher IPC. Maybe Intel can maintain clocks then 5% more IPC and slightly lesser power use would make for an undoubtedly better CPU, even if just barely. But everything points to a bit lower clocks which will eat away that IPC advantage and we are going to be left with a few watts savings. I still hope I will have an upgrade path not a sidegrade path.

 

[zir_blazer]

Chances are that Broadwell-E will do nothing interesing in the high end Desktop as Haswell-E replacement, but since it is a shrink, maybe Intel could surprise us with a ridiculous amount of Cores. Haswell-E was 18, Broadwell-E could do 24.