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6700k Skylake worth the upgrade from Sandybridge 2600k?

ITT Dave2150 trying to justify his 6700k purchase again :D

Can you even read? I'm saying to this guy that it was a silly move to upgrade from Sandy to Skylake, as at his resolution it would make no difference at all, as he is GPU limited.

Skylake makes sense for some use cases, not for others. Depends what hardware you're currently running, what games you play, and what resolution you game at.

Though I suspect I'm wasting my breath, since you're obviously trolling.
 
Can you even read? I'm saying to this guy that it was a silly move to upgrade from Sandy to Skylake, as at his resolution it would make no difference at all, as he is GPU limited.

Skylake makes sense for some use cases, not for others. Depends what hardware you're currently running, what games you play, and what resolution you game at.

Though I suspect I'm wasting my breath, since you're obviously trolling.

Your first reply in the thread starts with absolutely, and even a video trying to persuade people there's a big difference. I don't know about others but that looks to me like you're trying to justify something to someone.

I don't know how I'm trolling either when there's many threads you end up arguing with people about the 6700k.
 
Big waste of money. An overclocked 2600k is still more than enough. Wait to see what is released this year.

Unless your using the iGPU you won't notice an improvement.
 
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Can you even read? I'm saying to this guy that it was a silly move to upgrade from Sandy to Skylake, as at his resolution it would make no difference at all, as he is GPU limited.

Skylake makes sense for some use cases, not for others. Depends what hardware you're currently running, what games you play, and what resolution you game at.

Though I suspect I'm wasting my breath, since you're obviously trolling.

Completely agree Dave, going from 2600k to any skylake is hardly an upgrade, not sure why some people are changing from a 4core cpu to a 4 core cpu ! x99 is what people should be buying.
 
You're moving goalposts. This discussion was not about my upgrade, it was about your very questionable decision to upgrade from sandybridge to skylake when you knew you were already GPU limited.

As I said in my previous post, this is simply your mistake for thinking you'd magically get more performance, when the only way to do so at that high resolution is to go multi-GPU.

If you'd spend 5 minutes looking over the 6700k reviews, you'd have seen that at high resolution (1440p, 2160p) Skylake, or even Haswell, over very little gains over Sandybridge, expect in CPU bound games (mmo's, arma3 engine, etc etc).



Buddy I'm not going to argue with you, I ran things like FSXMark and it showed very little improvement and I checked other peoples benchmarks with FSXMark and it didn't add up, then I realised they were running 1080p and lower in some cases which is why their benchmarks looked good, sadly half of the benchmarks they put up are ego trips/epeen more than reality or they fiddled with the CFG file when they were told it needs to be a stock FSX configuration.

I may have another 6700k soon to try as I'm building a new system for my niece as a graduation gift from the one I gave her as a University gift when she enrolled to medical school, so will be updating her 2500k to a new one as her system is going to be given to her brother as a gift from me too after I stick it in a new case and make it a boy like system hers is all red and girly as she likes it with red water cooling :), so have to rebuild her loop too and give it a good clean as it has been running for many years and had a few changes of coolant over that time done by me but not a full clean.

So I can have another play on a 6700k and see how that goes again. What I'm looking for me now is a 5960x or a 8/10 core Broadwell when they come out for my main rig, but I will not be buying a new 5960x as they are not worth the price and going very cheap in the right places if you look around.

I'm not going to go down the IPC and high Ghz race anymore and go for more cores and live with it as it is and not look at benchmarks that are made up in a lot of cases, the future is more cores anyways as we saw from dual core to quad core and people cried foul back then too saying quad cores are not used but over time they were and now are standard really. In a few years 6-8-10 core systems will shine more on the mainstream apps and games. So rather build for the future than stick to 4 cores and hope the IPC and Ghz keep my FSX at good frame rates. I'm a power user anyways but was trying to save money and only trying to make FSX better at the time I tried a 6700k but realised not for me and rather have more horses that are slower than fewer that are faster.



Also FSX is a very CPU bound game and Memory bound, so I know what I'm talking about when I went 6700k and really fast memory, just it didn't live up to my expectations for the price, also SLI does not work on FSX or Xplane, so adding more graphics cards as you state is not an option either, as you keep repeating only thing that would make it better is more graphics cards at my resolution of 3440x1440, but you didn't realise or knew that FSX doesn't use SLI or Crossfire and other games I play are fast enough on my single 980ti at this resolution and my screen is only a 60hz screen anyways, all other games are way over 60hz/60fps that I play on full ultra settings in most cases. I see where you are coming from but clearly you don't know enough to advise people on upgrades for the applications or games they are trying to improve.


Will leave it at that mate and enjoy your system mate, I hope it gives you a good few years of fun as does my 2600k setup currently.:D So the money saved is now going to my niece as a graduation gift and my nephew as a hand me down system rebuilt with a new case and GPU which makes me feel better than wasting it on a upgrade that was not here or there for me. So all worked out for the better in the end :) and I will go for a X99 setup.
 
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At 5gz its probably quicker than skylake. Skylake might not be able to clock high enough to close the gap, unless you get really lucky and have an exceptional one.

Looking at real-world gaming benchmarks though. Even at stock speeds you need to be well over 100fps to see real gains from Skylake. But by then the difference isn't noticeable anyway and at higher resolutions than 1080 there is pretty much no difference. That's why the "upgrade" is pointless.
 
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At 5gz its probably quicker than skylake. Skylake might not be able to clock high enough to close the gap, unless you get really lucky and have an exceptional one.

Looking at real-world gaming benchmarks though. Even at stock speeds, you need to be well over 100fps to see real gains from Skylake. But by then the difference isn't noticeable anyway.

A stock 6700k is roughly 40% quicker than a stock 2700k. A 4.5/4.6hz 6700k will be easily quicker than a 5ghz 2700k and by a decent enough margin.

http://hexus.net/tech/reviews/cpu/85193-intel-core-i7-6700k-14nm-skylake/?page=3

http://hexus.net/tech/reviews/cpu/85193-intel-core-i7-6700k-14nm-skylake/?page=4

Have we all forgotten how old sandybridge is now and how many small 10%-15% increases we have had since then :p

I agree that in gaming he probably wont see a massive difference though.
 
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But it's not really 40%

Well, it is at cpu related tasks like rendering (see cinebench score).

I was just responding to the other guy who said a 5ghz 2700k is faster and that you couldn't clock a 6700k high enough to compete which isn't true. A stock 6700k will likely be faster than a 5ghz 2700k.
 
Completely agree Dave, going from 2600k to any skylake is hardly an upgrade, not sure why some people are changing from a 4core cpu to a 4 core cpu ! x99 is what people should be buying.

If your a pure gamer, the skylake is the fastest chip hands down. It's only a small percentage, but that matters to enthusiasts. This is an overclockers forum/ store after all, where people spend a lot of effort and money just to sqeeze out that last 1 or 2%, and that's reason enough. Yep, if you use multithred apps, sure x99 is the way to go.

Using the 6600k as a baseline, as a gamer, I was willing to spend the extra £100 for the benefits of the extra threads on a 6700k, but seeing as I don't use any other multithreaded apps whatsoever, I wasn't willing to spend the extra £150 I would have needed to buy the cheapest x99 upgrade I could find (you'll find that here at ocuk BTW ;)).

Edit: I also made an additional £20 saving on z170 with an Asus cashback promo :)
 
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Digital Foundry exaggerated the gains with the gaming benchmarks don't use their benchmarks as gospel (Intel sponsored obviously). watch first two videos and run them at the same time for the benchmarks and compare the FPS, then watch the others):-

Core i3 6100 4.4GHz BCLK Overclock vs i5 2500K/i5 3570K/i5 4690K Benchmarks

Core i5 6500 4.5GHz BCLK Overclock vs i5 6600K/i7 6700K Gaming Benchmarks


Intel Skylake Core i7 6700K vs 4790K/3770K/2600K 4.4GHz Overclock Gaming Benchmarks


Core i5 6600K Skylake Benchmarks vs i5 4690K/ 3770K/ 2500K/ FX-8350



Intel Skylake Core i7 6700K vs 4790K/3770K/2600K Stock Gaming Benchmarks (STOCK)




Real benchmarks by DudeRandom84 and what I saw when I upgraded (Play Lists of benchmarks).

Skylake 6700K Vs 4790K GTX 980 TI

https://www.youtube.com/watch?v=UfvIXiYPcMg&list=PLC85l4CwqZZDdCK4aWHLtKEz0iHMevZXN

Skylake 6700K Vs 4790K

https://www.youtube.com/watch?v=NoFzi3WdNZo&list=PLC85l4CwqZZBGSYnXRv0d3nUzKP70CXMA
 
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Yeah I've seen those duderandom videos, and the Arma 3 one which is supposedly very cpu intensive doesn't show much difference between 4790k and 6700k, 4-5fps at most.

I think Digital Foundry cherry picked their settings to make the 6700k look better than it should be, don't they seem to have certain things turned off like AA or something in most of their tests? I'll have to check again.
 
Average fps isn't a great measure to begin with (as a reference, just take a look at the way techreport.com reviews GPUs). CPUs don't have a big impact on average fps, but they can have a much bigger impact on frame times and minimums in certain game engines. Subjectively speaking that's what I saw when I swapped my 2500k for a 6700k.

For anyone asking, such an upgrade is not going to revolutionise your gaming experience (get a new GPU if that's what your after), but it will improve it.
 
Indeed ^ There are certain instances however where I saw massive gains just going from 2500k to a 3770k (similarly clocked) - Grass areas in Crysis 3 is one of them. Framerate almost doubled.
 
Doing a bit more research into Skylake revealed this interesting article :-

http://www.anandtech.com/show/9483/intel-skylake-review-6700k-6600k-ddr4-ddr3-ipc-6th-generation/10

http://www.anandtech.com/show/9483/intel-skylake-review-6700k-6600k-ddr4-ddr3-ipc-6th-generation/22


Conclusions on Gaming

There’s no easy way to write this.

Discrete graphics card performance decreases on Skylake over Haswell.

This doesn’t particularly make much sense at first glance. Here we have a processor with a higher IPC than Haswell but it performs worse in both DDR3 and DDR4 modes. The amount by which it performs worse is actually relatively minor, usually -3% with the odd benchmark (GRID on R7 240) going as low as -5%. Why does this happen at all?

So we passed our results on to Intel, as well as a few respected colleagues in the industry, all of whom were quite surprised. During a benchmark, the CPU performs tasks and directs memory transfers through the PCIe bus and vice versa. Technically, the CPU tasks should complete quicker due to the IPC and the improved threading topology, so that only leaves the PCIe to DRAM via CPU transfers.

Our best guess, until we get to IDF to analyze what has been changed or a direct explanation from Intel, is that part of the FIFO buffer arrangement between the CPU and PCIe might have changed with a hint of additional latency. That being said, a minor increase in PCIe overhead (or a decrease in latency/bandwidth) should be masked by the workload, so there might be something more fundamental at play, such as bus requests being accidentally duplicated or resent due to signal breakdown. There might also be a tertiary answer of an internal bus not running at full speed. To be sure, we rested some benchmarks on a different i7-6700K and a different motherboard, but saw the same effect. We’ll see how this plays out on the full-speed tests.
 
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Average fps isn't a great measure to begin with (as a reference, just take a look at the way techreport.com reviews GPUs). CPUs don't have a big impact on average fps, but they can have a much bigger impact on frame times and minimums in certain game engines. Subjectively speaking that's what I saw when I swapped my 2500k for a 6700k.

For anyone asking, such an upgrade is not going to revolutionise your gaming experience (get a new GPU if that's what your after), but it will improve it.

Indeed ^ There are certain instances however where I saw massive gains just going from 2500k to a 3770k (similarly clocked) - Grass areas in Crysis 3 is one of them. Framerate almost doubled.

I don't doubt you both saw an improvement going from a 4-core/4-thread CPU to a 4-core/8-thread one, especially in games like Crysis 3, which utilises all 8 threads. In the latter, the doubling of the frame rate you saw Jono is not purely attributable to the ivybridge increased IPC. It is the doubling of threads most likely.

I'm likely to wait as currently got good clocking 4770k and 2700k and a good outgoing 4930k which will be replaced by a 5960x. My cinebench R15 score on the 2700k at 5Ghz is near enough 900. An overclocked 6700k to 4.6GHz based on the review posted earlier in the thread achieves around 990. So at best, we're talking an approx 10% improvement. Clock for clock of course its faster but who has a 5Ghz 6700k. Not many I suspect.

The other issues I hear about with skylake, including bent CPUs on non-intel coolers, difficulties with certain instruction sets and calculation (superpi etc), reduced discrete graphics performance compared to Haswell. It doesn't inspire massive amounts of confidence. So I'd still say to anyone with a post Sandybridge i7 that clocks fairly well, you aren't going to see a colossal improvement for your money. Much better spent on a GPU or two.
 
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For all the extra money it is not worth it in my opinion. If you have a 2600K clocked at 4.4Ghz or over you will see minimum gains.

Certainly not enough to shell out for a new platform. x99 is the way to go from Sandy in my opinion.
 
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