List of Intel CPU Batch Number and Ivybridge Cherry Picking Binning CPU

[jjcruz78 0]

Good Morning Guys!!!!

 

           Here is a list of Ivybridge CPU's and their overclocking potential:

 

             

Below is a guide on how to read Intel CPU Batch Number which is 8 characters long with a mix of number and alphabet which represents a value or description for each field. The first character represents the place where the CPU is assembled by assembling the IHS (Integrated Heatsink) with the chip followed by boxing. The chip extracted from the wafer is only processed in USA which is later distributed to the assembly plant around the world to make sure all CPU batch have the equivalent highest quality. The second character represents the year it is manufactured. Example 7 represents 2007. The third and fourth character represents the total week from January of that year. So if its 30, it means approximately 30 weeks divided by 4 weeks per month gives 7.5 (around July mid). The fifth character represents the CPU Stepping. It comes in 3 different flavors which is A (uses less volt but produces more heat – great for extreme water cooling or liquid nitrogen or DICE aka Dry-Ice), B (uses more volt but produces less heat – best for air cooling or entry-level water cooling) and C (very rare – balance of both world A and B). The last 3 characters are Intel CPU serialization codes.

Example: L707A723 —

1st letter or digit = plant code: (Malaysia)
0 = San Jose, Costa Rica
1 = Cavite, Philippines
3 = Costa Rica
6 = Chandler, Arizona
7 = Philippines
8 = Leixlip, Ireland
9 = Penang, Malaysia
L = Malaysia
Q = Malaysia
R = Manila, Philippines
Y = Leixlip, Ireland

2nd digit = Year of production: (2007)
3rd & 4th digits = week: (7th week )
5th digit = Stepping (A or B or C)
6th – 8th digits = lot number: (723)
10th – 13th digits = serialization code (—)

Stepping A = less volt more heat (best with full water cooling).
Stepping B = more volt less heat (best with air or entry water cooling).

Intel 3rd Generation CPU Ivy Bridge

Batch Number | CPU Name | GHz | Voltage
3213B440 3770K 4400 1.17
L152B586 3770K 4700 1.24
L204B321 3770K SkyyPunk
L204B321 3770K 4600 1.21 Murlocke
L204B321 3770K 4800 1.30 michaelrw
L204B343 3770K 4700 1.28; 4900 1.34 Jcyle
L206A973 3770K DaClownie
L206B314 3770K 4800 1.35 KuuFA
L206B314 3770K 4500 1.20
L206B314 3770K 4600 1.32 samwiches
L206B468 3770K kxdu
L206B468 3770K Special_K
L211B472 3770K 4800 1.28
L211B477 3770K 5000 1.38 Darth Oscar
L212B228 3770K 4600 1.22; 4700 1.28; 4800 1.34
3204B958 3570K 4500 1.17; 4700 1.22; 4800 1.25 SonDa5
3208C060 3570K 4500 1.25
3209B767 3570K 4500 1.21 Ben the OCer
3210C023 3570K 4400 1.20
L152B659 3570K 4500 1.26
L202B743 3570K 4500 1.10+
L204B361 3570K DeXel
L206B524 3570K Jinto
L208B128 3570k 4900 1.35 adamski07
L209C112 3570K 4700 1.25
L209C223 3570K 4500 1.14
3209C030 3570K 4500 1.22 purdueman

 

Link: http://pc.ayumilove.net/list-of-intel-cpu-batch-number/    (original link- list was posted November 25, 2012)

 

   P.S. Found this list yesterday, let me know if any of you has cpu's from this list so we can corroborate the accuracy.

 

 

     Happy Flying!!!!

 

 

 

 

[meshman 109]

Looking through the plastic on top of the box at very, very small type I see 3304A646. Sounds like I'll need less volts, but have a nice room heater... :lol:

[jjcruz78 0]

Yes sir less voltage but on the flip side you get free heater .....  B) 

 

  I'm glad this info is useful

 

 

  P.S. I'm trying to cross reference this info to see how factual is it....

 

     Thanks man for been the first!!!!

[snowingairlines 20]

Is Stepping C bad news?

[jjcruz78 0]

Stepping C is in between A & B. So in other words is a little better than A. It depends

 

  P.S. What is your current voltage and temp ?

[martin-w 2,234]

For me...

 

3770K

 

Batch # 3226C073

 

At 4.5 GHz at the moment.

Voltage is 0.030 offset, which results in 1.304 under load. 

Temps in FSX are around 55 degrees with an NH=D14.

 

It will do 4.6 without any trouble, but higher and temps shoot up. As you'd expect, due to the crappy Ivy Bridge TIM.

[meshman 109]

It will do 4.6 without any trouble, but higher and temps shoot up. As you'd expect, due to the crappy Ivy Bridge TIM.

 

Not keeping up with everyone's system, but I take your comments to mean you didn't de-lid?

 

I'm still debating, but am leaning towards a de-lid. Seems like I'm always looking for new ways to waste my time... and money!! :wacko:

[jjcruz78 0]

Great, got it

 

   Yes your best bet is to de-lid

 

     Their is 2 ways:

 

      1. Razor (their is a tutorial here already)

      2. Vice

 

     P.S. Good temp and voltage. On the de-lid it all comes down to how willing are you to forfeit the warranty. All in all lucking good!!!!

 

     Happy flying!!!!

[martin-w 2,234]

Well no, I have no intention to de-lidd.

 

I was seconds away from doing so a while back. I had downloaded the CPU schematics from Intel, so I knew exactly where the die was in regard to the PCB, had all tools prepared... and then it dawned on me that it was pointless.

 

The average 3770K overclock after de-lidding is a mere 200 MHz That equates to one or two frames per second.

 

I came to the conclusion that in practical terms it was totally unnecessary.

 

If I was utterly desperate for even two FPS it would be a different story, but I'm not.

[jjcruz78 0]

I think at the moment Ivy is a good option (IMO) I hear you man

 

 

   Happy Flying!!!!

[martin-w 2,234]

Not keeping up with everyone's system, but I take your comments to mean you didn't de-lid?

 

I'm still debating, but am leaning towards a de-lid. Seems like I'm always looking for new ways to waste my time... and money!! :wacko:

 

That's correct. No de-lidding for me.

 

I certainly wouldn't deride those who choose to de-lid though.

 

But I would say that those who choose to do so, should consider how little difference it will make in terms of frame rate.

 

I may choose to de-lid in the future, but if I do it will be for the hell of it, for fun, just to see what I can achieve, not for the minimal added performance.

[MarkW 1,170]

Is there an advantage to de-lid because if successful the lower heat should extend the life of the chip?  Not sure if the cost/benefit is worth it in this regard but perhaps this goes into the thinking.

 

A list like this would be useful for the new Haswell chips.  I wonder if anyone has started one?

[jjcruz78 0]

Mark,

 

     Good point, if not for performance stand point at least for longevity is a very good reason.

 

 

      P.S. Happy Flying!!!!!

[martin-w 2,234]

Well no, not really true in practice, if we are saying anything greater than 4.5, post de-lid, for a 3700k is unnecessary, then with a high end cooler you will be at approximately 55 degrees in FSX.

And 55 degrees is hardly a temp that's associated with premature degradation. It's a low temp for a modern CPU. Intel designed the chip to have an acceptable lifespan with the stock cooler, and the stock cooler, even without an overclock will be running near those temps.

Don't forget, CPU lifespan is measured in thousands of hours, and we enthusiasts replace our kit far sooner than that.

[jjcruz78 0]

Martin,

 

That your thought's (good for you); I'm here just to help people with my research and facts, not fanaticism.

 

 

 

 

Happy Flying you all!!!!

Mark,

 

           As soon as I fine a List I will post it here.