Feeds
75%
intel_quad_logo_tn

Intel Core 2 Extreme QX6700 quad-core CPU

Two cores bad - four cores good?

Providing a secure and efficient Helpdesk

Review So here we are, not quite four months since Intel launched its Core 2 Duo processor and we're already moving up yet another level. Intel will today officially announce 'Kentsfield', aka the four-core Core 2 Extreme QX6700. Some may claim it isn't a true quad-core CPU as Intel has fitted two Core 2 Duo CPUs together in a single package, but it is a first step to what the future holds...

core2extreme_quad_cpu

The QX6700 is based on the same 65nm manufacturing process as the other Core 2 processors. It incorporates a total of 8MB of L2 cache, as 4MB per pair of cores. Therein lies a problem: the two caches aren't interconnected. So each pair of cores shares 4MB of cache, and if processor A of core-pair X needs something from the cache of core-pair Y, it has to go out to memory. Juggling cache access to make sure the four cores don't get out of sync with each other is no trivial task.

With the current architecture this will remain an issue, but Intel may solve this when it implements a single-die quad-core chip. But as it stands now, you won't see the full potential of the quad-core processor, as you'll see from some of the benchmark numbers on the following pages. With current and even future operating system support, the advantage of moving from two cores to four doesn't compare to the leap from the NetBurst architecture to Core 2.

This doesn't mean that there isn't a performance increase if you use the right type of multi-threaded applications. If you're into graphics rendering, in particular, you'll see a large performance increase. However, the QX6700's lower clock speed, 2.66GHz, means that in applications that can't take advantage of all the cores, you'll see it fall behind the older Core 2 Extreme X6800, clocked at 2.93GHz.

The rest of the specifications are the same as those of the Core 2 Duo processors and I suggest you have a look at Reg Hardware's Core 2 Extreme review and Core 2 Duo performance preview for more in-depth information about these features.

New hybrid storage solutions

More from The Register

next story
Apple iPhone 6: Missing sapphire glass screen FAIL explained
They just cannae do it in time, says analyst
Quit drooling, fanbois - haven't you SEEN what the iPhone 6 costs?
How keen will buyers be when exposed to the real price?
Slap my Imp up: Bullfrog's Dungeon Keeper
Monsters need to earn a living too
Amazon axes hated Fire Phone price: 99 pennies but a niche? Ain't none
Forgive the double negative but seriously, no one wants this mobe
Apple's big bang: iPhone 6, ANOTHER iPhone 6 Plus and WATCH OUT
Let's >sigh< see what Cupertino has been up to for the past year
Apple's SNEAKY plan: COPY ANDROID. Hello iPhone 6, Watch
Sizes, prices and all – but not for the wrist-o-puter
The Apple Watch and CROTCH RUBBING. How are they related?
Plus: 'NostrilTime' wristjob vid action
prev story

Whitepapers

Secure remote control for conventional and virtual desktops
Balancing user privacy and privileged access, in accordance with compliance frameworks and legislation. Evaluating any potential remote control choice.
Intelligent flash storage arrays
Tegile Intelligent Storage Arrays with IntelliFlash helps IT boost storage utilization and effciency while delivering unmatched storage savings and performance.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.
Providing a secure and efficient Helpdesk
A single remote control platform for user support is be key to providing an efficient helpdesk. Retain full control over the way in which screen and keystroke data is transmitted.