Broadwell E v Haswell E: i7 6850K Compared with i7 5820K at 4.2GHz

The launch of the latest Intel Extreme Edition CPUs cannot come soon enough for some people. Due for launch (apparently) sometime around Computex in late may/early June, today we appear to have a first glimpse of what Broadwell E processors will offer compared to the current Haswell E offerings of today. Posting on the Overclock.net forum, user Maintenance Bot has been kind enough to offer a benchmark comparison of what gains the new architecture should bring in raw performance terms.

Maintenance Bot managed to get his hands on a Broadwell E-based Core i7 6850K chip, a 6 core (12 threads) that should arrive with a stock clock speed of 3.6GHz, and a turbo clock of 3.8GHz. However in order to be able to make a more direct comparison with the previous generation, Maintenance Bot pushed the 6850K to 4.2GHz, allowing for a more apples to apples comparison with a 5820K were both chips are configured to near identical settings.

The performance gains are certainly in evidence with Broadwell E scoring highly in Cinebench R15 - 1311 vs 1191, and Super PI 32M - 8m27 vs 8m38.

These results are of course entirely preliminary and not guaranteed to be comparable to what we will see at launch, however they do point to a higher Instructions per Clock rate that will mean better performance. It will be even more interesting to see what the flagship deca-core 6950X is capable of.

Overclock.net forum


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Taiwan sdougal says:

Any comments chaps?

Germany der8auer says:

10/10 would buy

Indonesia speed.fastest says:

That physics score is very good for 12 thread @ 4.2ghz.

TaPaKaH says:

Exactly 10% difference in CB. So to beat the current 6/8-core records we'll need 5.40-5.45GHz Broadwell-E.

United States rtsurfer says:

Dat Pi tho. :eek:

TaPaKaH says:

Pi is not comparable on Win7 - you can make 2 runs one after another and have 10+ second difference.

United States rtsurfer says:

That's true. But there's still a very real possibility that BW-E will be faster than Skylake for Pi. ;) Sent from my Nexus 5X using Tapatalk

Romania Alex@ro says:

Rumours hint for 1500E+VAT for Europe,at that price i have no idea how many people will buy,soon buying a top cpu will mean selling your car lol

websmile says:

Broadwell had better ipc than haswell but was awful mem oc cripple. It might be faster than Skylake per clock at 32m per MHz if it clocks ddr4 decently, but I do not see 6,3ghz incoming... maybe I an wrong^^

Germany der8auer says:

Alex@ro said: Rumours hint for 1500E+VAT for Europe,at that price i have no idea how many people will buy,soon buying a top cpu will mean selling your car lol


It's not a rumor. It's true

United States rtsurfer says:

websmile said: Broadwell had better ipc than haswell but was awful mem oc cripple. It might be faster than Skylake per clock at 32m per MHz if it clocks ddr4 decently, but I do not see 6,3ghz incoming... maybe I an wrong^^


Not sure about max clocks or mem capabilities yet.
But the LCC scene might change.

websmile says:

At prices that will take nearly 2k for 10 and approximately 1k for 8core cpu that is not even top notch you will most likely understand that most people won´t buy for llc :D - which leads us to problems stated earlier in this thread, a few sponsored guys might post llc, but this will be very far away from what we see now. It might rather kill low clock than give it a push imho

United States rtsurfer says:

Of course. Only a select few might be using it. I was hoping the 6-cores might be serviceable for LCC (i mean 32m) as long as the cache size difference doesn't result in a big performance gap. Other benches LCC can be split by core count & we can hope that we have the same situation as we had with HW-E, where the 6-cores had an edge. Here's some more pricing info, Intel Core i7-6950X – BX80671I76950X ($1609.37 US) Intel Core i7-6900K – BX80671I76900K ($1024.70 US) Intel Core i7-6850K – BX80671I76850K ($602.11 US) Intel Core i7-6800K – BX80671I76800K ($422.60 US) http://forums.anandtech.com/showpost.php?p=38177902&postcount=3580 Should be close to reality.

United States Gunslinger says:

Pretty huge price jump on the top end for only 2 more cores.

Belgium leeghoofd says:

The one with the most money wins... focussing solely on legacy from now :p

Maybe a fundraiser can help me :D

websmile says:

No - nothing changes against skylake, cpu distribution will be same to same people :) - I would be more than surprised if this gen changes the way things work now

Belgium leeghoofd says:

To be honest 1500 is way too high mate, the lower end models will be more popular and will provide a decent boost from current gen.

For those that want to cash out go ahead :p Though sadly it will not improve the amount of high end 3D benching in my book... This one is really for the happy few as it costs already as much as a golden 6700K. While the latter is way more versatile for grabbing points... just my two cents...

Poland Xtreme Addict says:

To be honest, I can't afford Broadwell-E and price of this CPU is sadly totally killing 3D. Bad times happened. So desktop hardware reaches server price tag. Soon we will pay for new single core GPUs 1500-2000 USD :)

Germany der8auer says:

I can understand the pricing tho. The 6950X does not replace the 5960X. The 6900K replaces the 5960X. Same amount of cores, about the same price and better performance. I would see 6950X as an upgrade CPU and this way the pricing makes sense.

Poland Xtreme Addict says:

I don't understand the pricing cause of history of 1000 USD CPUs:

Pentium EE 955 (2 cores) replaced with i7 965 EE (4 cores), i7 975 EE replaced with i7 980X (6 cores), i7 4960X (6 cores) replaced with i7 5960X (8 cores).

More cores + higher IPC and price was same. There is no explanation why put 60% higher price this time, only possibility is that:
a) greediness
b) production output is so low, quantity of working 10 core cpus are around 1/10 of the quantity of working 8 cores in case of Haswell-E.

But that's life and we can't do anything about it. Maybe users will vote with their wallets. 60% more expensive than last generation is something massive and I think many enthusiasts will think few times before buying BDW-E.

United States Mysticial says:

Xtreme Addict said: I don't understand the pricing cause of history of 1000 USD CPUs:

Pentium EE 955 (2 cores) replaced with i7 965 EE (4 cores), i7 975 EE replaced with i7 980X (6 cores), i7 4960X (6 cores) replaced with i7 5960X (8 cores).

More cores + higher IPC and price was same. There is no explanation why put 60% higher price this time, only possibility is that:
a) greediness
b) production output is so low, quantity of working 10 core cpus are around 1/10 of the quantity of working 8 cores in case of Haswell-E.

But that's life and we can't do anything about it. Maybe users will vote with their wallets. 60% more expensive than last generation is something massive and I think many enthusiasts will think few times before buying BDW-E.


Not saying this is the reason. But it's worth thinking about this from an economic standpoint.

Assuming the silicon has 10 cores, you need all 10 of them working to be able to sell it as a 10 core chip. If we take yields into account, chances are, not too many chips coming off the assembly line will have 10 working cores.

Even if we assume that each core has a 90% chance of being good, at 10 cores, there's only a 0.9^10 = 35% chance that all cores are working. (I'm assuming they're independent which probably isn't the case. But this is just for illustration.)

So while everybody wants a 10 core chip, perhaps Intel can't make that many. (Or if they did, they'll have a massive excess of lower-core variants because nobody wants to buy them.) So Intel will price them in a way so that the relative demand for each chip (6, 8, 10 core variants) more closely matches the relative supply that comes off the assembly line.

Poland Xtreme Addict says:

Well in fact I don't think that the amount of "working" cores is the problem of high price. Note that Broadwell-EP has 20 cores, which are same production line. 6950X is just a reject from server line :)

United States Mysticial says:

Xtreme Addict said: Well in fact I don't think that the amount of "working" cores is the problem of high price. Note that Broadwell-EP has 20 cores, which are same production line. 6950X is just a reject from server line :)


It looks like they have 3 production lines. But it's certainly possible that the 10 cores are rejects from the upper two lines.




Notice that the HHC line has 24 physical cores. But the highest core count is only 22. So the yields probably aren't good enough for them to get 24/24 working in large enough quantity to be worth selling.

zeropluszero says:

rtsurfer said: Here's some more pricing info,
Intel Core i7-6950X – BX80671I76950X ($1609.37 US)
Intel Core i7-6900K – BX80671I76900K ($1024.70 US)
Intel Core i7-6850K – BX80671I76850K ($602.11 US)
Intel Core i7-6800K – BX80671I76800K ($422.60 US)

lol

websmile says:

I thought wrs are there to be broken? And now cold shower by pricing?^^ Buy and don´t lol^^

zeropluszero says:

Oh i'm not saying that i'm getting one, i'm saying that the idea of blocking them because they're priced so high is ridiculous, ridiculous like the people that will pay the price for these. intel are testing us. "if they buy at this price, they'll buy the next gen at the same or higher" just buy 6800K everyone haha

websmile says:

Personally I have no plans of blocking it and it will for sure not be excluded from submission or database. Not my business because I do not use 2011 anyway, the obvious problem that might occur is that samples at this level will make ranking even more money-based in case BD-E dominates, people with samples, rtail binning options or extreme deep pockets can buy ranking even more easy than now. At the moment it is theory anyway, and btw, I agree on your way of seeing this as a test like it was done at normal broadwell which was priced a lot higher than Haswell and DC..

Germany der8auer says:

5960X was the 2nd most sold CPU at Newegg last year. I'm 100% sure there is a big mass out there willing to pay 1.5k and more for 10 core CPUs.

websmile says:

Agreed, but I am not sure there are many ocers who are able or willing to pay 1,5k+ 10x for binning to keep the distance within reach of inhouse or warehouse binners. It is not the price of the single cpu alone that creates a problem. We talked a lot about 3D dying lately, apart from VGA prices platform prices at highend range will not revive it, this was already discussed. I tend to see the problem from a distance, I like the progress that might come with BDE but also see possible problems Hwbot might face. CPUs at server price segment are adding to the loss of balance we already saw over last years, especially if access is that different for people

Greece TASOS says:

LOL There are people considering a multiple purchase for binning purposes ??? Oh god ...

Romania Alex@ro says:

And you would think overclockers are poor right :D The big question is the oc potential,if in same range like normal broadwell you will be binning for 4.7 to 5.2 ghz lol :D

Germany der8auer says:

I wouldn't expect 10 cores to clock better than 8 cores (5960X). Didn't touch any retails yet but would be surprised to see 6 GHz or anything near that

Poland Xtreme Addict says:

der8auer said: 5960X was the 2nd most sold CPU at Newegg last year. I'm 100% sure there is a big mass out there willing to pay 1.5k and more for 10 core CPUs.


Are you sure it was 2nd most chosen CPU in 2015? :) I mean is there any official information about it? I am just curious :) I would presume more like i7 4790K/4690K. USA society is pretty rich, and on NEWEGG more enthusiasts buy, not typical Jones who have no idea that PC is something more than PC case ;) But still 2nd position is something really crazy for such expensive piece of hardware, though I can agree 5960X was a very good choice overall - full PCIE lines, great OC, and first 8 core CPU.

Germany der8auer says:

Yea there was a news from newegg about it. But I think it was sorted by volume and 4790K was first. Still it means that they sold a lot of them.

FlanK3r says:

I'm looking forward for first tests of 6950X. But I gave up with 1500+ dollars CPU...One year before and a little I bought 1000 euros 5960X and last time few 6700K...No money for all future CPUs :(

Sweden Rauf says:

So, does anyone know which 3Dmarks scale past 16 threads? Heard someone say something about that some time ago...

websmile says:

We will see, so far no chips were available to get a decent frequency at 16 threads+ iirc. I read that only vantage is said to scale above 16 threads, which indeed would be weird for me because I see no reason why later benchmarks should be cut artificially then. Up to Vantage core scaling was always improved...

Australia im late says:

Curious to see if the 6850k has any other improvements over the 6800k, other than base and turbo clocks?

If not, just buy the 6800k and overclock it!!!

I mean, almost $200usd more....surly can't be just a clock speed difference...

Maybe 6850k is 40 lanes and 6800k is the entry 28 lanes?

I would still buy the 6800k, $200usd for extra is not worth it in my books.

FlanK3r says:

I think, in this case it is only higher clock freqency

United States Gunslinger says:

Rauf said: So, does anyone know which 3Dmarks scale past 16 threads? Heard someone say something about that some time ago...
3DMark Vantage, I don't know beyond that one. Pretty sure Vince had 100K+ CPU score using the SR2 at 6GHz

United States Gunslinger says:

websmile said: We will see, so far no chips were available to get a decent frequency at 16 threads+ iirc. I read that only vantage is said to scale above 16 threads, which indeed would be weird for me because I see no reason why later benchmarks should be cut artificially then. Up to Vantage core scaling was always improved...
Prior to Vantage they only scaled to 4 cores, and now they only scale with GHz

United States Splave says:

websmile said: At prices that will take nearly 2k for 10 and approximately 1k for 8core cpu that is not even top notch you will most likely understand that most people won´t buy for llc :D - which leads us to problems stated earlier in this thread, a few sponsored guys might post llc, but this will be very far away from what we see now. It might rather kill low clock than give it a push imho

I heard low clock challenge will be tough with some CPUs barely going above 5ghz on ln2 XD

Germany der8auer says:

Splave said: I heard high clock challenge will be tough with some CPUs barely going above 5ghz on ln2 XD


fixed for you

United States rtsurfer says:

6950X Benches, http://www.overclock.net/t/1599263/6950x-benchmarked Because why not. ;)

FlanK3r says:

wow, that's crazy!

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