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6850k

Griff7520

Griff7520

Griff7520

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Joined
2 Jul 2007
Posts
2,224
Location
Cheshire East
Hi

currently running the 5820k but I am very tempted to get the 6850 while the price is so good. What do you guys think....My 5820k is still £399 to buy new from ocuk, does anyone know why the 6850k which is a much better chip is only £329.

I have a very good m/b so Can not see the point of going for the 299 chip set as What I have seen so far is its not much better than what I have now.(see sig) so would it be a good investment to get the £6850k while is a good price

thanks for any input.
 
well it is faster and it has 40 pci express lanes so I have the option to get a second graphics card later..... was thinking that if I get it I will have a few more years before I need to upgrade...obviously it use less power as well....I probably will not see much difference in performance but it is newer tech than the 5820k and it will mean I can sell my 5820k while its still worth some money.
 
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Griff7520 said:
well it is faster and it has 40 pci express lanes so I have the option to get a second graphics card later..... was thinking that if I get it I will have a few more years before I need to upgrade...obviously it use less power as well....I probably will not see much difference in performance but it is newer tech than the 5820k and it will mean I can sell my 5820k while its still worth some money.
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Can't say that i would bother either. Adding a second 1070 is not a good reason, SLI is not the way to go really. If you want a good upgrade a 1080ti would be more rewarding.
 
kitfit1 said:
Can't say that i would bother either. Adding a second 1070 is not a good reason, SLI is not the way to go really. If you want a good upgrade a 1080ti would be more rewarding.
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yea but I am about £350 short to get one of those....the 6850 is something I can afford right now and I like the price at the minute but reading the replies so far I am now having doubts.....decisions decisions !
 
The 6850K is not a much better chip, I don't know where you got that from. The only tangible advantage is 40 PCIe lanes which isn't really worth it because AMD and Nvidia are scaling back their efforts on multi GPU and have been for a while.
 
Griff7520 said:
yea but I am about £350 short to get one of those....the 6850 is something I can afford right now and I like the price at the minute but reading the replies so far I am now having doubts.....decisions decisions !
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Ain't worth the move from 5820K to 6850K for anything but PCI-e lanes.
Yes it has 10% stronger IPC so a 4.3Ghz 6850K is as fast as a 5820K @ 4.7-4.8 but most Haswel-E can get to that speed, Broadwel-E are much rarer to do so unfortunately.

As for SLI, Is better to sell the 1070 and buy a 1080Ti than have 2 1070s in SLI.

The only upgrade paths are maybe a good bargain on used 6900K/6950X, or sell everything and start fresh with X299 or X370.

I was on same boat as you, having a 6800K. So decided to keep it for productivity to run on it's own doing rendering, until Ryzen 2 comes out next year, and get for gaming a 8700K.
 
^^+1

No point in having 40 PCI lanes when SLI and Crossfire are both lame ducks. I would save the extra £350, get a 1080ti and sell the 1070......................maybe then you might get some back from the £350 ?
 
If you're insane then sure.

If you are looking for an objective upgrade, save your dollar for a 1080ti, if you have £329 already plus around £300 for your 1070 then you're getting close.
 
[QUOTE="Panos, post: 31169760, member:
Yes it has 10% stronger IPC [/QUOTE]

I thought it was more like 5%, Haswell to Skylake was 10%. So it's definitely not worth it.
 
ltron said:
[QUOTE="Panos, post: 31169760, member:
Yes it has 10% stronger IPC
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I thought it was more like 5%, Haswell to Skylake was 10%. So it's definitely not worth it.[/QUOTE]

Pure IPC count @ 3.5Ghz.

Haswell to Haswell-E is ~2.5%.
Haswell to Broadwell-E is 10%
Haswell-E to Broadwell-E is ~7.5% (but the latter supports also higher speed ram which greatly benefits it to make the gap bigger)
Broadwell-E to Ryzen 5/7/TR is equal. Ryzen 3 is slower because of missing cache.
Broadwell-E to Skylake 1.5%
Skylake to SkylakeX 2.1%
Skylake to Kabylake 3%
Skylake to KabylakeX 4.2%

Here is a very good indication of where the pure IPC perf stands. Kabylake to CoffeeLake going to be a 5%+ gap.
Because the latter has more cache, which will greatly help in games also.


But as I wrote. Haswel-E overclocks better than Broadwel-E so, anyone with 5820K should be pushing it to 4.7 and wait until IceLake/Ryzen 2 next year.

http://www.guru3d.com/index.php?ct=articles&action=file&id=33458

** Do Not Hotlink images **
 
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Panos said:
Ain't worth the move from 5820K to 6850K for anything but PCI-e lanes.
Yes it has 10% stronger IPC so a 4.3Ghz 6850K is as fast as a 5820K @ 4.7-4.8 but most Haswel-E can get to that speed
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I agree , a 5820k to a 6850k isn't worth it , I've owned both Haswel and broadwell-e chips and one thing i learned about Broadwell is that the Imc is pretty poor compared to the Haswell chips that i've owned and they get MUCH hotter when overclocked.

However comparing a 4.3ghz broadwell to a 4.7-4.8 Haswell-e chip doesn't tell the full story. The 10% Ipc is best case and across the board it's in the region of 5% depending of how the system is tuned , memory/cache speeds etc etc.

All in all i was disappointed in the Broadwell chips i've owned.

Panos said:
5820K @ 4.7-4.8 but most Haswel-E can get to that speed
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No most Haswell chips can't do those sorts of speeds, later batches got better but these were still a lottery, i've had several 'J' atch 5820k's and 5930k's that struggled to hit even 4.4 and have a few friends that cant get anything over 4.5.
 
thanks for the answers guys.

Here is my situation....I am pretty sure I can get £200 min for my chip...I all ready have £100 or so to add to that for the 6850...would you say that paying £129 for the 6850 is a good deal and worth doing.....does that make sense...I usually upgrade by selling my kit while its still worth something and adding a bit to it for the shortfall....if I wait a year then my chip is going to be worth a lot less and while the 6850 is only £329 at the minute then I was thinking it would be worth doing for a £130
 
darket said:
No most Haswell chips can't do those sorts of speeds, later batches got better but these were still a lottery, i've had several 'J' atch 5820k's and 5930k's that struggled to hit even 4.4 and have a few friends that cant get anything over 4.5.
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Agreed, I'd say common speeds on 5820k seem to be around 4.2-4.5 or so maximum, hardly ever see many with more than that.
 
Griff7520 said:
thanks for the answers guys.

Here is my situation....I am pretty sure I can get £200 min for my chip...I all ready have £100 or so to add to that for the 6850...would you say that paying £129 for the 6850 is a good deal and worth doing.....does that make sense...I usually upgrade by selling my kit while its still worth something and adding a bit to it for the shortfall....if I wait a year then my chip is going to be worth a lot less and while the 6850 is only £329 at the minute then I was thinking it would be worth doing for a £130
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No.
 
You won't notice any difference in real world use. Might as well save the £130 for future use on an upgrade that will give you a noticeable improvement.
 
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