Intel Readies Merom-L Core
April 7, 2007 9:16 PM
comment(s) - last by
In a bid to make manufacturing of Celeron M 500 CPUs economically more efficient, Intel will introduce a shrunk-down core in the near future.
Last January Intel introduced the Celeron M 520, a low-cost entry-level mobile CPU based on Core microarchitecture. At $134 the CPU was relatively low-cost from a consumer point of view -- with scheduled price drop to $107 on April 22nd. Under the hood the CPU featured a "fully fledged" Merom core with the current B2 stepping. It's safe to assume that these feature at least 2 cores and 2MB L2 Cache -- given the processors have different manufacturing lines for 4MB and 2MB models.
In the recent
Intel notified its customers about a stepping change for Celeron M 520. Although a Celeron M 530 was introduced on March 25th at $134, in the PCN this model is not mentioned at all. Intel informs that said model will transition from a Merom B2 stepping core to a new
Merom-L core with A stepping
, which will be available starting the 1st of June.
The only change for customers is a different CPUID which requires a BIOS update along with a microcode update in oder to support the CPU correctly. Besides Intel notes that "Merom-L A stepping material has minor die size decrease due to manufacturing optimizations to
increase product availability".
As the PCN only mentions a minor die size decrease it remains open whether Intel only reduced the L2 cache down to 1MB or also managed to cut off one of the two CPU cores. My bet is on L2 Cache only, as it explicitly mentions "minor" and the CPU cores in Core-based CPUs are linked kinda tightly so it would have required some sort of redesign of the chip.
This article is over a month old, voting and posting comments is disabled
4/8/2007 7:17:29 AM
Actually doing some tests I found out that a Katmai Pentium 3 500-512k of cache-133mhz FSB performed about the same as a 700Mhz Celeron.
The celerons not only were restricted to a 66Mhz bus in those days, Where the Pentium 3 used 100/133mhz buses, (Thats like 50%-100% bandwidth difference)
But they used 128k of on-die cache, Which was half of the coppermine and 1/4th the amount on the katmai, Now not only did it have its cache severely cut done, but the celeron only had four-way set associative on die L2 , While the Pentium 3 had 8-way, And cache latency's were much higher.
In 3D mark 2000 the Pentium 3 at the same clock speed as a celeron with a 100mhz FSB performed about 1000 3D marks slower. Which was really noticeable for back then. And back then, I prefer the AMD K6-2 Socket 7, then moved onto the K6-3 then the Pentium 3.
Back when the Celeron was against the Pentium 2, The cache was actually in a better configuration, As it was full speed on-die, Whilst the Pentium 2 was 256/512 off die cache.
"Well, there may be a reason why they call them 'Mac' trucks! Windows machines will not be trucks." -- Microsoft CEO Steve Ballmer
Intel to Release Merom-based Celeron M in 2007
September 20, 2006, 9:31 PM
12/4/2013 Daily Hardware Reviews
December 4, 2013, 5:43 PM
12/2/2013 Daily Hardware Reviews
December 2, 2013, 3:41 PM
OCZ Goes Bankrupt, SSD Assets are Targeted by Toshiba
December 1, 2013, 9:58 PM
11/27/2013 Daily Hardware Reviews
November 27, 2013, 9:53 AM
11/26/2013 Daily Hardware Reviews
November 26, 2013, 5:42 PM
WD Shows Off New SSD, HDD Dual Drive
November 25, 2013, 10:30 AM
Most Popular Articles
NSA Snares Americans' Porn Viewing Histories in Effort to Target Muslims
December 1, 2013, 9:00 PM
Coalition of 20+ Tech Firms Backs MRAM as Potential DRAM, NAND Replacement
November 29, 2013, 11:59 PM
Fed Up With Cheating OEMs, Microsoft Trolls Chromebooks in New Ad
November 27, 2013, 4:09 PM
Xbox? PCs? Mobile? Microsoft Wants One Windows to Rule Them All
November 25, 2013, 8:21 PM
Seattle Restaurant Bans Google Glass, Tells Wearers to "Just shut up and get out"
November 27, 2013, 10:27 AM
Latest Blog Posts
Global Cyber Espionage Concerns Reveal Growing Cyber Armies
Nov 29, 2013, 11:04 AM
Is The Period Becoming an Expression of Anger?
Nov 26, 2013, 2:02 PM
NSA and Congress -- You Will Never Kill the Constitution, It's an Idea
Nov 10, 2013, 2:00 PM
AT&T Explores $100B+ USD Deal to Acquire Vodafone's European Operations
Nov 4, 2013, 7:34 AM
U.S. Army Developing Cyber, Electronic War Arsenal
Oct 31, 2013, 4:49 PM
More Blog Posts
Copyright 2013 DailyTech LLC. -
Terms, Conditions & Privacy Information