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jpperks

Intel Core i7 4790k or i7 6700k

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Hi,

 

I've been doing quite a lot of research regarding best PC specs. for running P3D v3.

 

I'm particularly unsure about the best CPU to be using. I have already found out the 4790k performs better under single core loads compared to the 6700k, is this true? Considering that P3D and FSX generally use a single core, I assumed that the 4790k would be the CPU to go for...

 

However after doing some more research about the 6700k, it appears it is more efficient, uses less power...

 

Unless I've missed any forum posts similar to this (apologies if I have), I can't seem to find any solid evidence about which of the two is best, specifically for P3D.

 

Or is there another CPU that is best? Budget isn't an issue...

 

Thanks for help

Jonathan

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Hi,

 

I've been doing quite a lot of research regarding best PC specs. for running P3D v3.

 

I'm particularly unsure about the best CPU to be using. I have already found out the 4790k performs better under single core loads compared to the 6700k, is this true? Considering that P3D and FSX generally use a single core, I assumed that the 4790k would be the CPU to go for...

 

However after doing some more research about the 6700k, it appears it is more efficient, uses less power...

 

Unless I've missed any forum posts similar to this (apologies if I have), I can't seem to find any solid evidence about which of the two is best, specifically for P3D.

 

Or is there another CPU that is best? Budget isn't an issue...

 

Thanks for help

Jonathan

Budget no issue, I'd go with a Siliconlottery 6700K @ 4.8Ghz.  The prices vary depending on what he has in stock and at what speeds they run, but a great place for quality CPU's.  I'd also add the delid option and you'll run even cooler.

 

https://siliconlottery.com/products/6700k48g

 

The 4790K is a great CPU, but it's now outdated tech.  The new motherboards supporting the 6700K will give you multiple 3.1 USB (much faster than 3.0) and faster ram (DDR4) for example, so you'll be much better off moving forward.

 

Enjoy your new machine!

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I agree with be77Solo.

 

Last year I faced the same decision and choose for the 6700K (and a GTX980Ti).
The technology is much newer, specifically the DDR4 RAM.

Also you make advantage of newer chipset and mobo technology.
I don't think the single core difference between the 4790K and 6700K is that much and besides that: P3D utilizes multiple cores

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If you go for the 4790k (a good CPU), you're buying into the end of the Haswell line of processors. Conversely, with the 6700k you're getting in at the start of the Skylake series. Although the 4790k tends to overclock slightly better, on average, than the 6700k, the newer chipset/CPU combination is apparently better at processing data so an equivalent overclock on a 6700 should give you slightly better performance. Now that the supply of 6700k processors is improving, the price is getting closer to the 4790 so really it's a no-brainer. Being able to use DDR4 RAM just seals the deal for me.

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Go for the new tech 6700k. The platform improvements alone would justify the bit of extra money. Either way, I always recommend a Delid (bravery) to give yourself a little thermal overhead to overclock.

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I got my 6700K at 4.7 + 980ti STRIX from Asus and it's a pisser to play P3D now.

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I got my 6700K at 4.7 + 980ti STRIX from Asus and it's a pisser to play P3D now.

 

I have about exactly the same setup and it just makes P3D  v3 finally live up to its potential. After years of resistance I finally switched over to P3D full time. For whatever reason the 6700k system was just superior to my 4790k system. Go 6700k and you should be very happy.

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Budget no issue, I'd go with a Siliconlottery 6700K @ 4.8Ghz. 

 

Come on now.  That is absolutely ridiculous to pay that much for a .1 or even .2 bump over a slightly lower clocked CPU.  Even if budget isn't an issue.

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If he want one it's ok , binning is not cheap .

If you want a real golden one 3 on 1000 tested the price tag is very high for 6700k 1700usd and for one that do 60mhz less ( not one multi) 1300usd, no we talk ridiculous prices.

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Come on now.  That is absolutely ridiculous to pay that much for a .1 or even .2 bump over a slightly lower clocked CPU.  Even if budget isn't an issue.

 

+1  I've built 3 6700K systems in the past 6 months... bought the cpu's from Fry's.  They all hit 4.7 Ghz (1 went to 4.8) on air for the stock price of $370 (still too much... I paid $280 for my 4790k!)  To pay that extra for .1 to .2 Ghz is crazy!

 

Greg

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The question to ask "in my opinion" is what that 100-200 MHz gives us.

 

It's a 5% increase from 4.6 GHz to 4.8.

 

So at 30 frames per second, that 200 MHz extra gives us a mere 1.5 frames per second extra, because overclocking is linear.

 

Silicone Lottery charge an extra $100 dollars I believe compared to a 4.6 GHz chip. So $100 for a confirmed 1.5 frames per second... your choice.

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This sounds odd but when I was OCing at first with my 6700K in P3D 4.7ghz made a huge difference over 4.5...I know % wise it isn't much but in the sim the difference in FPS and smoothness wasn't linear with my OC. I didn't purchase a "special" chip just a regular joe chip from NewEgg. 

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That's interesting Ron.

 

I did quite a bit of experimentation with this a while back, and it was definately linear. I know others have too.

 

Perhaps there was some other variable at work. Some kind of bottleneck issue perhaps.

 

We would need detailed notes from your endeavors to gleen anything definitive really. Plus the same experience replicated by others.

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In a wellbalanced system with good effency Its linear to the OC ,

If not Its something odd , settings sim , gpu, CPU . Settings OC, etc.

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Conversely, with the 6700k you're getting in at the start of the Skylake series.

 

It's my understanding that Skylake will not support WIN 7. Is that correct? 

Thanks

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It's my understanding that Skylake will not support WIN 7. Is that correct? 

Thanks

 

No, not correct.

 

Skylake doesn't support EHCI, so install W7 from DVD rather than USB.

 

Additionally, from 2018 Microsoft will only support Windows 8.1 and Windows 7 on Skylake, up to 2018. 

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Additionally, from 2018 Microsoft will only support Windows 8.1 and Windows 7 on Skylake, up to 2018. 

 

That's it. Thanks.

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Skylake doesn't support EHCI, so install W7 from DVD rather than USB.

 

Be mindful - this means that not only can you not use USB boot media to install Win7 on a Skylake, but you may not have the ability to use a USB keyboard or mouse during the installation process. This would require you to use a PS/2 style connections, assuming your motherboard has them. Some quick Googling indicates that you may be able to slipstream some drivers into your Windows 7 boot DVD which would end up supporting a USB keyboard or mouse.

 

It may be worth fully vetting your installation plans prior to making any purchases.

 

I'm eyeballing a Skylake upgrade this summer as well, but would like to maintain full flexibility with regards to my OS of choice, so this is something I'll be visiting more deeply if and when my "Household Committee on Finance and Expenditures" frees up my funding.

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I bought a pre-built gaming rig last November with 6700K installed, not O/C - I get 40 FPS (set-rate)  consistently with very few stutters & sliders almost maxed on FSX=SE...

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Be mindful - this means that not only can you not use USB boot media to install Win7 on a Skylake, but you may not have the ability to use a USB keyboard or mouse during the installation process. This would require you to use a PS/2 style connections, assuming your motherboard has them. Some quick Googling indicates that you may be able to slipstream some drivers into your Windows 7 boot DVD which would end up supporting a USB keyboard or mouse.

 

It may be worth fully vetting your installation plans prior to making any purchases.

 

I'm eyeballing a Skylake upgrade this summer as well, but would like to maintain full flexibility with regards to my OS of choice, so this is something I'll be visiting more deeply if and when my "Household Committee on Finance and Expenditures" frees up my funding.

 

 

Thanks Greg.

 

I opted for Windows 10, so not relevant to me, but great information for others.

 

I understand there is a Windows 7 USB patcher that negates the requirement for a PS2 keyboard. From ASRock, not sure if it can be used with any motherboard.

 

Still requires quite a bit of messing about though.

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Hi,

 

I was able to sell my 4790k rig at a reasonable price and am building a new one. 

 

As the Q2 is ending would you still buy a 6700k or wait for a possible successor?

 

It's already hard to wait on the new GTX's, but I don't want to end up building a new rig and two month later there is all new processors with yet again new sockets etc.

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I understand there is a Windows 7 USB patcher that negates the requirement for a PS2 keyboard. From ASRock, not sure if it can be used with any motherboard.

 

Oddly enough, this is the only one that worked on my Asus mobo ! Thank you Asrock !

Asus EZinstall tool failed, and autounattend method failed as well. And Intel's own tool failed too :).

 

So just get that tool http://www.touslesdrivers.com/index.php?v_page=23&v_code=45966 (Asrock USB patcher I used v 1.0.6).

- Have win7 installation files in some directory (or just in a dvd drive....).

- Run the patcher and specify that Win7 drive as source. Get a patched ISO file as an output.

- Then burn that ISO on a USB key as bootable. (I use Rufus to do that).

 

Boot on the USB and enjoy Win7 install in xHCI with USB drive/keyboard/mice support.

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As the Q2 is ending would you still buy a 6700k or wait for a possible successor?

 

There is always a successor on the horizon for CPUs, GPUs and storage. At some point, you just have to pull the trigger.

 

Cheers!

Luke

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Oddly enough, this is the only one that worked on my Asus mobo ! Thank you Asrock !

Asus EZinstall tool failed, and autounattend method failed as well. And Intel's own tool failed too :).

 

So just get that tool http://www.touslesdrivers.com/index.php?v_page=23&v_code=45966 (Asrock USB patcher I used v 1.0.6).

- Have win7 installation files in some directory (or just in a dvd drive....).

- Run the patcher and specify that Win7 drive as source. Get a patched ISO file as an output.

- Then burn that ISO on a USB key as bootable. (I use Rufus to do that).

 

Boot on the USB and enjoy Win7 install in xHCI with USB drive/keyboard/mice support.

 

 

Good to know it worked. Bit weird that none of the others did.

There is always a successor on the horizon for CPUs, GPUs and storage. At some point, you just have to pull the trigger.

 

Cheers!

Luke

 

 

That's usually my philosophy too. Technology advances so rapidly, that if you always wait for what's just around the corner, you would wait forever.

 

If a new architecture is imminent, I'd wait, but if months away, sod it, I'd pull the trigger.

 

The new CPU's in the pipeline won't be game changers anyway. 

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