List of Intel CPU Batch Number + Cherry Picking Binning CPU

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

Leave a Reply