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*** Did I waste my $$ on 6700K ?? **

post #1 of 22
Thread Starter 
Hi All !

I have been rocking an i7-2600K, Asus MB, 16Gb DDR3 and a custom H2O loop since SandyBridge came out in 2011.

I had BIOS set up so it would idle at ~ 1.6Ghz @ 0.9V. Under load it would hit 5.2Ghz @1.52V !!! I was a happy power user!

I JUST set up a new machine with an MSI Z170-A Gaming M5 motherboard with the new i7-6700K and 16Gb of DDR4.

I'm not a gamer at all; hence the lack of a dedicated GPU. I'm just looking for the most speed in the quietest package, so "K" series CPUs and custom H2O cooling.

I'm so disappointed with the fact that the most I can muster with this new 6700K is 4.7Ghz. (with temps ~ 75-85C)

I left the Vcore in auto and it still hits over 1.5V under load and idles at 1v (at 800Mhz). If I do not over clock, the idle voltage is 0.7v (still at 800Mhz).


So, did I just blow a bunch of cash on a new CPU, MB and DDR4 for a substantially lower clock speed? I was so excited about the potential I THOUGHT this CPU would achieve that I even ponied up for the latest Samsung SSD, the 950PRO NVMe. redface.gif



What's the highest stable clock speeds people are seeing with the 6700K and what MB are they using to get there?


Thanks in advance!




EDIT:
Disclaimer: I'm completely aware that the Skylake architecture is faster than Sandybridge. It's not a clock to clock thing I bummed about. It's the fact that I have an extensive H2O setup to take advantage of high OC's and the best I could get out of the 6700K was 4.7Ghz from the 4.0Ghz base vs my old 2600K (3.8Ghz to 5.2Ghz). My expectations were simply much higher is all.
Edited by rms8 - 11/12/15 at 3:24pm
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post #2 of 22
Dude, a lower clock speed doesn't mean that your processor is slower...
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MaxHaswell
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post #3 of 22
Well the clocks are definitely going to be lower but overall performance will be much higher than a 2600K. Nothing overclocks quite like Sandy Bridge did.
post #4 of 22
Quote:
Originally Posted by rms8 View Post

So, did I just blow a bunch of cash on a new CPU, MB and DDR4 for a substantially lower clock speed?

Just putting it out there;

4Ghz Sandy Bridge != 4Ghz Skylake

The Sandy Bridge is slower at the same clock speed as Skylake.

Skylake is something like ~25% faster than Sandy Bridge in most tests I could find.

You've gained a faster CPU and faster memory.

Clock speeds are relevant only to the current CPU architecture and mean little to nothing after that.


http://www.anandtech.com/show/9483/intel-skylake-review-6700k-6600k-ddr4-ddr3-ipc-6th-generation/9
post #5 of 22
Quote:
Originally Posted by rms8 View Post

Hi All !

I have been rocking an i7-2600K, Asus MB, 16Gb DDR3 and a custom H2O loop since SandyBridge came out in 2011.

I had BIOS set up so it would idle at ~ 1.6Ghz @ 0.9V. Under load it would hit 5.2Ghz @1.52V !!! I was a happy power user!

I JUST set up a new machine with an MSI Z170-A Gaming M5 motherboard with the new i7-6700K and 16Gb of DDR4.

I'm not a gamer at all; hence the lack of a dedicated GPU. I'm just looking for the most speed in the quietest package, so "K" series CPUs and custom H2O cooling.

I'm so disappointed with the fact that the most I can muster with this new 6700K is 4.7Ghz. (with temps ~ 75-85C)

I left the Vcore in auto and it still hits over 1.5V under load and idles at 1v (at 800Mhz). If I do not over clock, the idle voltage is 0.7v (still at 800Mhz).


So, did I just blow a bunch of cash on a new CPU, MB and DDR4 for a substantially lower clock speed? I was so excited about the potential I THOUGHT this CPU would achieve that I even ponied up for the latest Samsung SSD, the 950PRO NVMe. redface.gif



What's the highest stable clock speeds people are seeing with the 6700K and what MB are they using to get there?


Thanks in advance!

 

Clock for clock, 4.7 GHz is likely much better than the 2600K at 5.2 GHz. I can't imagine that the 6700K at 4.7 GHz is actually slower than the 2600K at 5.2 GHz!

 

You're worried way too much about the clock speed here...

 

Having said that though, you're not a gamer, so why did you upgrade? Is this giving you a performance boost that you're feeling and appreciating and benefiting from?

It's a computer!
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It's a computer!
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Hard DriveHard DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
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post #6 of 22
3 words.
Instructions Per Clock smile.gif
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post #7 of 22
Quote:
Originally Posted by white owl View Post

3 words.
Instructions Per Clock smile.gif

 

Exactly. IPC. Thank you.

 

Architecture.

 

 

Edit: Whoa. I thought we were the only two people who replied. lol


Edited by TwoCables - 11/12/15 at 3:22pm
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It's a computer!
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Hard DriveHard DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
CoolingOSMonitorKeyboard
Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
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post #8 of 22
Repeating everyone else's musing so far. IPC.

Also Intel typically states that between architectures you're gaining about 5-10% performance increase IPC.

Sandy Bridge -> Ivy Bridge -> Haswell -> Broadwell -> Skylake

Sandy Bridge @ 5.2GHz... let's do some really simple math. 5% performance gains over every generation.

Will be a 4.94GHz Ivy Bridge
Will be a 4.7GHz Haswell
Will be a 4.45GHz Broadwell
Will be a 4.23GHz Skylake

That's at the 5% per tick tock....
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post #9 of 22
Quote:
Originally Posted by rms8 View Post

Hi All !

I have been rocking an i7-2600K, Asus MB, 16Gb DDR3 and a custom H2O loop since SandyBridge came out in 2011.

I had BIOS set up so it would idle at ~ 1.6Ghz @ 0.9V. Under load it would hit 5.2Ghz @1.52V !!! I was a happy power user!

I JUST set up a new machine with an MSI Z170-A Gaming M5 motherboard with the new i7-6700K and 16Gb of DDR4.

I'm not a gamer at all; hence the lack of a dedicated GPU. I'm just looking for the most speed in the quietest package, so "K" series CPUs and custom H2O cooling.

I'm so disappointed with the fact that the most I can muster with this new 6700K is 4.7Ghz. (with temps ~ 75-85C)

I left the Vcore in auto and it still hits over 1.5V under load and idles at 1v (at 800Mhz). If I do not over clock, the idle voltage is 0.7v (still at 800Mhz).


So, did I just blow a bunch of cash on a new CPU, MB and DDR4 for a substantially lower clock speed? I was so excited about the potential I THOUGHT this CPU would achieve that I even ponied up for the latest Samsung SSD, the 950PRO NVMe. redface.gif



What's the highest stable clock speeds people are seeing with the 6700K and what MB are they using to get there?


Thanks in advance!

 

I have another reply to make...

 

What was the model of that ASUS motherboard you had? I just want to point something out here.

It's a computer!
(18 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
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Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
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X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
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It's a computer!
(18 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
CoolingOSMonitorKeyboard
Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
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post #10 of 22
Thread Starter 
Quote:
Originally Posted by Death2Consoles View Post

Dude, a lower clock speed doesn't mean that your processor is slower...

Quote:
Originally Posted by Penicilyn View Post

Well the clocks are definitely going to be lower but overall performance will be much higher than a 2600K. Nothing overclocks quite like Sandy Bridge did.

Quote:
Originally Posted by Shrak View Post

Just putting it out there;

4Ghz Sandy Bridge != 4Ghz Skylake

The Sandy Bridge is slower at the same clock speed as Skylake.

Skylake is something like ~25% faster than Sandy Bridge in most tests I could find.

You've gained a faster CPU and faster memory.

Clock speeds are relevant only to the current CPU architecture and mean little to nothing after that.


http://www.anandtech.com/show/9483/intel-skylake-review-6700k-6600k-ddr4-ddr3-ipc-6th-generation/9

Quote:
Originally Posted by TwoCables View Post

Clock for clock, 4.7 GHz is likely much better than the 2600K at 5.2 GHz. I can't imagine that the 6700K at 4.7 GHz is actually slower than the 2600K at 5.2 GHz!

You're worried way too much about the clock speed here...

Having said that though, you're not a gamer, so why did you upgrade? Is this giving you a performance boost that you're feeling and appreciating and benefiting from?

Quote:
Originally Posted by white owl View Post

3 words.
Instructions Per Clock smile.gif

Quote:
Originally Posted by TwoCables View Post

Exactly. IPC. Thank you.

Architecture.


Edit: Whoa. I thought we were the only two people who replied. lol



I have edited my OP :


EDIT:
Disclaimer: I'm completely aware that the Skylake architecture is faster than Sandybridge. It's not a clock to clock thing I bummed about. It's the fact that I have an extensive H2O setup to take advantage of high OC's and the best I could get out of the 6700K was 4.7Ghz from the 4.0Ghz base vs my old 2600K (3.8Ghz to 5.2Ghz). My expectations were simply much higher is all.


So,
Should I stick with this MSI MB, or is there more potential out therein the 6700K ??
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