Memory Part Number Breakdown

[Wired]

Here's a quick breakdown of how to decipher the new memory part numbers.

Your memory kit uses this notation if they start with CM and then are preceded by a letter. If a number comes after it, then it's a single module using the old notation.

Ok, here's how to break it down using this actual part number as an example: CMD8GX3M4A1600C8. Note that CM simply means Corsair Memory, so we'll skip that part.

Code	(1..2)	#G	X#	M#	(1..2)	#	C#
Part #	D	8G	X3	M4	A	1600	C8

NOTE:
(1..2) means that one or two characters will appear here
# means that a number will appear here


Here's what each section of the part number means:

Code	Meaning
(1..2)	Module Type
#G	Total Part Number Density
X#	Memory Tech (DDR1 / DDR2 / DDR3 / DDR4)
M#	Module Quantity (Number of Modules)
(1..2)	Revision
#	Speed (MHz)
C#	CAS Latency

So, applying this to the example gets us:

Part #	Meaning
D	Dominator
8G	Kit contains 8 GB of memory
X3	DDR3
M4	4 Modules in the kit
A	Revision A
1600	1600 MHz
C8	CAS Latency 8

8 GB / 4 Modules = 2 GB per module

In the next post you'll find a more comprehensive breakdown of each section of a memory part number and what they mean.

[Wired]

Here's the meaning of each section in a bit more detail:

(1..2)	Module Type
C	XMS classic (old) heat spreader
X	XMS classic (new) heat spreader
Z	Vengeance series
L	Vengeance Low Profile
D	Dominator or Platinum
K	Vengeance LPX
P	D but with something added
G	GT with Airflow II
GS	GT single module
T	G but with something added
R	Retail (not DDR4) / Vengeance RGB (DDR4 only)
E	Non-Registered ECC
S	Registered ECC
SO	SoDIMM
SX	SoDIMM Vengeance
V	Value Select (or equivalent)
Y	Vengeance Pro

#G	Total Part Number Density
1G	1 GB
2G	2 GB
3G	3 GB
4G	4 GB
6G	6 GB
8G	8 GB
12G	12 GB
24G	24 GB
32G	32 GB
64G	64 GB

X#	Memory Tech
X1	DDR1
X2	DDR2
X3	DDR3
X4	DDR4

M#	# of Modules
M1	1 Module Kit
M2	2 Module Kit
M3	3 Module Kit
M4	4 Module Kit
M6	6 Module Kit
M8	8 Module Kit

#	Speed
800	800 MHz
1066	1066 MHz
1333	1333 MHz
1600	1600 MHz
1866	1866 MHz
2000	2000 MHz
2133	2133 MHz
2200	2200 MHz
2400	2400 MHz
2666	2666 MHz
2800	2800 MHz
2933	2933 MHz
3000	3000 MHz
3100	3100 MHz
3200	3200 MHz
3300	3300 MHz

C#	CAS Latency
C1	CL1
C2	CL2
C3	CL3
C4	CL4
C5	CL5
C6	CL6
C7	CL7
C8	CL8
C9	CL9
C10	CL10
C11	CL11
C12	CL12
C13	CL13
C14	CL14
C15	CL15
C16	CL16