• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

K series Intel CPU worth it?

Laurijan

Laurijan

Joined
Feb 10, 2007
Messages
2,582 (0.41/day)
Location
Oulu, Finland
System Specs
System Name Enslaver :)
Processor Ryzen 7 7800X3D
Motherboard ASUS TUF Gaming B650-Plus
Cooling CPU: Noctua NH-D14 with LED fans, Case: 2 front in - 1 rear out
Memory 2x16GB Kingston Fury Beast RGB 6000MHz
Video Card(s) ASUS TUF RTX 4070Ti OC
Storage Samsung Evo Plus 1TB NVMe , internal WD Red 4TB for storage, WD Book 8TB
Display(s) LG CX OLED 65"
Case Lian Li LANCOOL II Mesh C Performance
Audio Device(s) HDMI audio powering Dolby Digital audio on 5.1 Z960 speaker system
Power Supply Corsair RM850x
Mouse Logitech G700
Keyboard ASUS Strix Tactic Pro
Software Windows 11 Pro x64
Hi!

I am quite sure I get an i7 3770 but can not decide if I buy a K model with its unlocked multiplier.

Is it possible to OC as much as with a K model thru upping the bus frequency?

I don´t plan to OC the hell out of my CPU.

Greetz!
Lauri
 
ChristTheGreat

ChristTheGreat

Joined
Jun 29, 2007
Messages
1,246 (0.20/day)
Location
Repentigny, QC, CANADA
System Specs
System Name CTG Computer
Processor AMD Ryzen 5 7600
Motherboard Asrock B650M PRO RS WIFI
Cooling Thermalright PA120 SE
Memory 2x 16gb G.SKILL F5-6000J3038F16GX2-FX5
Video Card(s) Gigabyte RX6800XT Gaming OC
Storage WD Black SN850X 2TB
Display(s) MAG274QRF-QD | Asus vg248qe
Case SAMA IM01
Audio Device(s) Creative SoundBlasterx G6
Power Supply Corsair SF750
Mouse Logitech G pro Wireless
Keyboard Corsair Strafe RGB MK2
Software Windows 11 Pro x64
Hi!

The non K CPU is BCLK limited. The way Sandy and ivy bridge work, the BCLK control all USB, SATA, PCI-E, PCI, etc.. which has a default of 100mhz. If you go to high like 110, you can corrupt all data transfered, system crash, etc..

This is why Sandy and ivy needs to be overclocked via multiplier. It's not like Nehalem or Sandy Bridge-E which work like the Nehalem, overclocking with the BCLK.


If you won't plan a big overclock, you can keep max turbo frequency on a non K CPU, for the 4 cores..
 
cadaveca

cadaveca

My name is Dave
Joined
Apr 10, 2006
Messages
17,232 (2.62/day)
ChristTheGreat said:
Hi!

The non K CPU is BCLK limited. The way Sandy and ivy bridge work, the BCLK control all USB, SATA, PCI-E, PCI, etc.. which has a default of 100mhz. If you go to high like 110, you can corrupt all data transfered, system crash, etc..

This is why Sandy and ivy needs to be overclocked via multiplier. It's not like Nehalem or Sandy Bridge-E which work like the Nehalem, overclocking with the BCLK.


If you won't plan a big overclock, you can keep max turbo frequency on a non K CPU, for the 4 cores..
Click to expand...

You can add +4 CPU bins(ie, 3.9 GHz Turbo does 4.3 GHz) to "locked" chips.
 
ChristTheGreat

ChristTheGreat

Joined
Jun 29, 2007
Messages
1,246 (0.20/day)
Location
Repentigny, QC, CANADA
System Specs
System Name CTG Computer
Processor AMD Ryzen 5 7600
Motherboard Asrock B650M PRO RS WIFI
Cooling Thermalright PA120 SE
Memory 2x 16gb G.SKILL F5-6000J3038F16GX2-FX5
Video Card(s) Gigabyte RX6800XT Gaming OC
Storage WD Black SN850X 2TB
Display(s) MAG274QRF-QD | Asus vg248qe
Case SAMA IM01
Audio Device(s) Creative SoundBlasterx G6
Power Supply Corsair SF750
Mouse Logitech G pro Wireless
Keyboard Corsair Strafe RGB MK2
Software Windows 11 Pro x64
cadaveca said:
You can add +4 CPU bins(ie, 3.9 GHz Turbo does 4.3 GHz) to "locked" chips.
Click to expand...

This is something I didn't know for locked chip. Thanks for completing :toast:
 
Laurijan

Laurijan

Joined
Feb 10, 2007
Messages
2,582 (0.41/day)
Location
Oulu, Finland
System Specs
System Name Enslaver :)
Processor Ryzen 7 7800X3D
Motherboard ASUS TUF Gaming B650-Plus
Cooling CPU: Noctua NH-D14 with LED fans, Case: 2 front in - 1 rear out
Memory 2x16GB Kingston Fury Beast RGB 6000MHz
Video Card(s) ASUS TUF RTX 4070Ti OC
Storage Samsung Evo Plus 1TB NVMe , internal WD Red 4TB for storage, WD Book 8TB
Display(s) LG CX OLED 65"
Case Lian Li LANCOOL II Mesh C Performance
Audio Device(s) HDMI audio powering Dolby Digital audio on 5.1 Z960 speaker system
Power Supply Corsair RM850x
Mouse Logitech G700
Keyboard ASUS Strix Tactic Pro
Software Windows 11 Pro x64
cadaveca said:
You can add +4 CPU bins(ie, 3.9 GHz Turbo does 4.3 GHz) to "locked" chips.
Click to expand...

I am unsure what a CPU bin is? Do I get you right that with an locked CPU that has 3,9GHz turbo speed I still can get 4,3GHz?
 
cadaveca

cadaveca

My name is Dave
Joined
Apr 10, 2006
Messages
17,232 (2.62/day)
Laurijan said:
I am unsure what a CPU bin is? Do I get you right that with an locked CPU that has 3,9GHz turbo speed I still can get 4,3GHz?
Click to expand...

Bin= Multi.

Just using Intel's own terminology.

And yes, example here:

oc-locked.gif
 
Laurijan

Laurijan

Joined
Feb 10, 2007
Messages
2,582 (0.41/day)
Location
Oulu, Finland
System Specs
System Name Enslaver :)
Processor Ryzen 7 7800X3D
Motherboard ASUS TUF Gaming B650-Plus
Cooling CPU: Noctua NH-D14 with LED fans, Case: 2 front in - 1 rear out
Memory 2x16GB Kingston Fury Beast RGB 6000MHz
Video Card(s) ASUS TUF RTX 4070Ti OC
Storage Samsung Evo Plus 1TB NVMe , internal WD Red 4TB for storage, WD Book 8TB
Display(s) LG CX OLED 65"
Case Lian Li LANCOOL II Mesh C Performance
Audio Device(s) HDMI audio powering Dolby Digital audio on 5.1 Z960 speaker system
Power Supply Corsair RM850x
Mouse Logitech G700
Keyboard ASUS Strix Tactic Pro
Software Windows 11 Pro x64
cadaveca

cadaveca

My name is Dave
Joined
Apr 10, 2006
Messages
17,232 (2.62/day)
Laurijan said:
Cool thx for the info! :toast:

One thing is still unclear to me: Is the i7 3770 a Limited Unlocked CPU?
Click to expand...

All CPUs except for "K" parts are "Limited Unlocked".

i7 3770K = Unlocked

i7 3770 = Limited Unlocked

i7 3770S = Limited Unlocked
 
You must log in or register to reply here.
Top