Code name for various mobile Intel processors
Merom
Celeron M 530 - SLA2G - 1.73GHz, 1 MB L2 Cache, 533 MT/s FSB
|
|
Launched
| 2006
|
---|
Discontinued
| 2009
|
---|
Marketed by
| Intel
|
---|
Designed by
| Intel
|
---|
Common manufacturer(s)
| |
---|
CPUID
code
| 06Fx (Merom-L: 1066x)
|
---|
Product code
| 80537
|
---|
|
Max.
CPU
clock rate
| 1.6 GHz to 2.6 GHz
|
---|
FSB
speeds
| 533 MHz to 800 MHz
|
---|
|
L1
cache
| 32 KB instruction, 32 KB data per core
|
---|
L2 cache
| Merom: 4 MB
Merom-2M: 2 MB
Merom-L: 1 MB
|
---|
|
Application
| Mobile
|
---|
Technology node
| 65 nm
|
---|
Microarchitecture
| Core
|
---|
Instruction set
| x86_64 (64-bit)
|
---|
|
Cores
| |
---|
Socket(s)
| |
---|
|
Brand name(s)
| - Mobile
Celeron
5xx
- Mobile Celeron Dual-Core E1xxx
- Mobile
Pentium Dual-Core
T2xxx
- Mobile Pentium Dual-Core T3xxx
- Core 2
Duo T5xxx
- Core 2 Duo T7xxx
- Core 2 Duo L7xxx
- Core 2 Duo U7xxx
- Core 2 Solo U2xxx
|
---|
|
Predecessor(s)
| Yonah
|
---|
Successor(s)
| Penryn
|
---|
|
Unsupported
|
Merom
is the code name for various mobile
Intel
processors that are sold as
Core 2
Duo, Core 2 Solo,
Pentium Dual-Core
and
Celeron
. It was the first mobile processor to be based on the
Core microarchitecture
, replacing the
Enhanced Pentium M
-based
Yonah
processor. Merom has the product code 80537, which is shared with
Merom-2M
and
Merom-L
that are very similar but have a smaller
L2 cache
. Merom-L has only one processor core and a different CPUID model. The desktop version of Merom is
Conroe
and the dual-socket server version is
Woodcrest
. Merom was manufactured in a
65 nanometer
process
, and was succeeded by
Penryn
, a
45 nm
version of the Merom architecture. Together, Penryn and Merom represented the first 'tick-tock' in Intel's
Tick-Tock
manufacturing paradigm, in which Penryn was the 'tick' (new process) to Merom's 'tock' (new architecture).
Variants
[
edit
]
Processor
|
Brand name
|
Model (list)
|
Cores
|
L2 Cache
|
Socket
|
TDP
|
Merom-L
|
Mobile
Core 2
Solo
|
U2xxx
|
1
|
2 MiB
|
BGA479
|
5.5 W
|
Merom-2M
|
Mobile Core 2 Duo
|
U7xxx
|
2
|
2 MiB
|
BGA479
|
10 W
|
Merom
|
L7xxx
|
4 MiB
|
17 W
|
Merom
Merom-2M
|
T5xxx
T7xxx
|
2-4 MiB
|
Socket M
Socket P
BGA479
|
35 W
|
Merom
|
Mobile Core 2 Extreme
|
X7xxx
|
2
|
4 MiB
|
Socket P
|
44 W
|
Merom
|
Celeron M
(Socket M) and Celeron (Socket P)
|
5x0
|
1
|
1024 KiB
|
Socket M
Socket P
|
30 W
|
Merom-L
|
5x0
|
27 W
|
Merom-2M
|
5x5
|
1024 KiB
|
Socket P
|
31 W
|
Merom-L
|
5x3
|
512-1024 KiB
|
BGA479
|
5.5-10 W
|
Merom-2M
|
Celeron Dual-Core
|
T1xxx
|
2
|
512-1024 KiB
|
Socket P
|
35 W
|
Merom-2M
|
Pentium Dual-Core
|
T2xxx
T3xxx
|
2
|
1 MiB
|
Socket P
|
35 W
|
Merom
[
edit
]
Merom
, the first mobile version of the Core 2, was officially released on July 27, 2006, but quietly began shipping to PC manufacturers in mid-July, alongside Conroe.
[1]
[2]
Merom became Intel's premier line of mobile processors, with mostly the same features as Conroe, but with a greater emphasis on low power consumption to enhance notebook battery life. Merom-based Core 2 Duo provides a slight performance increase associated with 3D rendering and media-encoding tasks,
[3]
yet maintains the same battery life as the Yonah-based
Core Duo
. Merom is the first Intel mobile processor to feature
Intel 64
architecture.
The first version of Merom is "drop-in" compatible with
Napa
platform for Core Duo, requiring at most a motherboard BIOS update. It has a similar
thermal envelope
of 34 W and the same 667 MT/s FSB rate.
[4]
The Merom die features 4 MB L2 cache, half of which is deactivated in the T5xx0 CPUs. A native 2 MB L2 version of the Merom core, called Merom-2M, was rolled out in early 2007 as a counterpart to
Allendale
. The Merom-2M core uses the
steppings
L2 and M0 and the ultra-low-voltage versions of the Core 2 Duo use this core.
A second wave of Merom processors featuring an 800 MT/s FSB and using the new
Socket P
was launched on May 9, 2007.
[5]
These chips are part of
Santa Rosa
platform.
[6]
Low voltage versions were also released on May 9, 2007.
Merom
(????) is the
Hebrew
word for a higher plane of existence or a level of heaven;
BaMerom
(?????) means "in the heavens". The name was chosen by the Intel team in
Haifa
,
Israel
, who designed this processor.
Merom XE
[
edit
]
The Core 2 Extreme Mobile processor, based on the
Merom XE
core, is a mobile CPU designed for laptops. It was released in two models, the X7900 and the X7800. These feature an 800 MT/s FSB. The X7800, introduced on July 16, 2007,
[7]
is clocked at 2.6 GHz and costs around $851 for OEMs. The processor features a 44 W TDP and requires the new Intel Centrino (Santa Rosa) platform. The X7900, introduced on August 22, 2007, is clocked at 2.8 GHz.
The X7900 processor was used in the top-end
iMacs
released on August 7, 2007.
Merom-2M
[
edit
]
The mobile version of the Allendale desktop processor is often called Merom-2M to identify the smaller L2 cache. Some T5xxx and T7xxx processors have come out with both Merom and Merom-2M dies, which can only be distinguished through their stepping number.
Merom-L
[
edit
]
The Merom-L processor is based on the same model as
Conroe-L
but is used in mobile
Socket M
and
Socket P
systems as Celeron 5xx and Core 2 Solo U2xxx, some of which also use regular Merom and Merom-2M chips with one core disabled in contrast to the real Merom-L that only has 1 MB L2 cache and a single core. The CPUID is family 6 model 23 (10661h), which is between Merom and
Penryn
.
The first Core 2 Solo processors were launched in Q3 2007 and consisted of the U2100 and U2200, which run at 1.06 and 1.2 GHz, respectively. They both feature a 533 MT/s FSB and are part of Intel's ULV family, running at only 5 W. Like the rest of the Core 2 family, they are 64-bit compatible. They were released with compatibility for the Napa platform rather than the newer Santa Rosa platform due to power consumption concerns.
[8]
Fixes
[
edit
]
Microsoft has released a microcode update (KB2493989) for Windows 7 that addresses several stability issues on selected "Penryn" and "Merom" CPUs.
[9]
See also
[
edit
]
References
[
edit
]
- ^
"Intel's Core 2 Duo chips arrive early"
.
MacNN
. July 21, 2006. Archived from
the original
on November 7, 2006
. Retrieved
July 21,
2006
.
- ^
"Intel second quarter 2006 earnings release; see page 3"
(PDF)
. Intel. July 19, 2006. Archived from
the original
(PDF)
on July 22, 2006
. Retrieved
July 21,
2006
.
- ^
Shimpi, Anand Lal (August 3, 2006).
"Mobile CPU Wars: Core 2 Duo vs. Core Duo"
.
AnandTech
. Retrieved
December 20,
2019
.
- ^
Shimpi, Anand Lal (March 7, 2006).
"Spring IDF 2006: Merom and Ultra Mobile PCs"
.
AnandTech
. Retrieved
July 17,
2006
.
- ^
Olsen, Sven (March 7, 2007).
"Intel Forecasts "Santa Rosa" for May 2007"
. Computer Shopper
. Retrieved
March 7,
2007
.
- ^
Kubicki, Kristopher (May 26, 2006).
"Intel 2006 Mobile CPU Roadmap Update"
.
DailyTech
. Archived from
the original
on May 28, 2006
. Retrieved
December 20,
2019
.
- ^
"Intel Takes Popular Laptops to 'Extreme' with First-Ever Extreme Edition Mobile Processor; Adds New Desktop Chip"
. Intel News Release. July 16, 2007. Archived from
the original
on December 23, 2007
. Retrieved
August 30,
2007
.
- ^
"Intel Core 2 Solo ULV Processors Coming in Q3 2007"
. laptoping.com. December 21, 2006. Archived from
the original
on November 6, 2007
. Retrieved
November 4,
2007
.
- ^
"Microcode update for Intel processors in Windows 7 or in Windows Server 2008 R2"
. Retrieved
November 3,
2020
.
External links
[
edit
]