What are the maximum frequencies that are available in core i7 process

mohab

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What are the maximum frequencies that are available in core i7 processors now?

I ask this because I'm looking for a new desktop PC these days. I currently have an ancient core two duo Pentium D processor runninf at 3.4 GHz, surprisingly all the PCs I have found so far are either very close to this frequency or slower.
 

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Desk1 7 Home Prem / Desk2 10 Pro / Main lap A...Desk1 i5 3750K / Laptop i7 GTX 860M / Desk2 i...Desk1 8GB (1866) / Desk2 16GB (1333) / Laptop...Desk 1& 2NVidia GTX 650 & Laptops on board Intel
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Intel Core i7-4790K Haswell Refresh Quad-Core 4.0GHz LGA 1150 Desktop Processor BX80646I74790K - Newegg.com - Newegg.com

4.0 standard clock; socket 1150; introduced a year or so ago.


Intel Core i7-6700K 8M Skylake Quad-Core 4.0GHz LGA 1151 95W BX80662I76700K Desktop Processor Intel® HD Graphics 530 - Newegg.com

4.0 standard clock; socket 1151; introduced a month ago.

But you need to realize that processors of the current generation do more work per clock than do processors of earlier generations. So you have to consider more than the clock speed. Additionally, the type of work you will do on the PC should be considered. Finally, the motherboards used with newer processors typically have features and improved technology not found on older motherboards. You may or may not benefit from this improved technology, but you should at least be aware of it and examine it.
 

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Ignatz Special; 4 speed manual gearbox; factory air conditioning; one of one
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AsRock Z170M Extreme 4, micro ATX
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Rosewill SilentNight 500 watt fanless, semi-modular
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Antec Solo II
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Noctua NH-U12S; Noctua F12 intake, Noctua S12A exhaust
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Microsoft 200 6JH-00001 USB
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Microsoft Security Essentials and Malwarebytes Premium
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All fans PWM; speeds at idle: CPU circa 500 rpm; intake circa 600 rpm; exhaust circa 600 rpm; CPU temps 27 idle and 47 C load in a warm room (27 C/81 F) when running Intel Extreme Tuning Utility stress test.
But you need to realize that processors of the current generation do more work per clock than do processors of earlier generations. So you have to consider more than the clock speed.


A bit OT but that is worth knowing as I am up for a new Skylake i5 shortly;)
 

My Computer My Computer

At a glance

Desk1 7 Home Prem / Desk2 10 Pro / Main lap A...Desk1 i5 3750K / Laptop i7 GTX 860M / Desk2 i...Desk1 8GB (1866) / Desk2 16GB (1333) / Laptop...Desk 1& 2NVidia GTX 650 & Laptops on board Intel
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Own build (new) Desk1 / Asus ROG Win 7 / Desk2 1st build
OS
Desk1 7 Home Prem / Desk2 10 Pro / Main lap Asus ROG 10 Pro 2 laptop Toshiba 7 Pro Asus P2520 7 & 10
CPU
Desk1 i5 3750K / Laptop i7 GTX 860M / Desk2 i5 2500
Motherboard
Desk1 Asus P877-V / Desk2 Gigabyte H67 UD3H / Laptop ?
Memory
Desk1 8GB (1866) / Desk2 16GB (1333) / Laptop 8Gb DDR3
Graphics Card(s)
Desk 1& 2NVidia GTX 650 & Laptops on board Intel
Sound Card
Desk 1 & 2 -XONAR DG Realtek High Def audio Laptop
Monitor(s) Displays
Desk 1 Benq HD 2450 / Desk2 Philips 24" / Laptop 17.5"
Screen Resolution
1920x1080 D1 & D2 & Laptop 1
Hard Drives
Desk1 Samsung 120GB 830 SSD
Asus ROG 256GB 850 Pro SSD
Desk2 Samsung 840 256 SSD
Toshiba 120GB EVO
PSU
Desk 1 Corsair HX 1050/ Laptop ? / Desk 2 Corsair HX 650
Case
Desk 1 Cooler HAF XM ? Toshiba laptop / Desk2 Coolermaster
Cooling
Fans on all Desk1 -2 Desk2 - all Coolermasters 5 Laptop ?
Keyboard
Desk 1 MS Sidewinder X6 Desk 2 MS Sidewinder X 4
Mouse
Desk 1&2 - Gigabyte MS 900 gamer - laptop - Logitec wireless
Internet Speed
ADSL2+
Other Info
One other Desktop (tester) and spare Toshba laptop both with SSD's
Running Kaspersky 2016 ISS on all machines config'd identically
Logitec audio stereo systems on each machine (x3)
Canon MG5250MFC
Router/modem TP-Link running WPA2SK
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