Feeds

Intel: 'Westmere' works wonders

Punts performance data for desktop, notebook 32nm CPUs

Build a business case: developing custom apps

IDF Intel reckons its upcoming 'Clarkdale' desktop 32nm - kind of - processor will run rather faster than equivalently priced chippery you can have today - and that includes quad cores.

Clarkdale is a dual-core part, though it has HyperThreading on board so it appears as a four-core processor to the operating system.

Intel's Westmere

In PCMark Vantage, a Core 2 Quad Q9400 yielded an overall score of 1.08 relative to a Core 2 Duo E8500's score, Intel said. A 3.33GHz Clarkdale scored 1.43. That's 43 per cent higher than the Q9400.

The Core 2 Quad only runs at 2.6GHz, which puts the Clarkdale ahead 25 per cent ahead on clock speed alone. Clarkdale's Turbo Boost technology ups the clock to 3.46GHz, Intel said, which is a 33 per cent gain. That leaves a further ten percentage points coming from the chip's architectural improvements, such as the integrated memory controller and bigger, better cache.

Looking at the SPEC floating point benchmark, again normalised to the E8500, the Q9400 scores 1.26, the Clarkdale 1.48, Intel claimed. That's just a 17 per cent advantage which could easily arise from the higher clock speed.

For integer tests, the Clarkdale performed less well, the chip giant admitted, scoring 1.36 to the Q9400's 1.39.

Intel's Westmere

It's worth bearing in mind that the Q9400 is a true four-core part and HyperThreading's virtual cores never gives as good a performance as physical ones.

The benefits of the integrated memory controller are more tangible: SiSoft Sandra tests yielded a 70 per cent increase in memory bandwidth comparing Clarkdale to the Q9400, though the caveat is that the former was hooked up to 4GB of dual-channel 1333MHz DDR 3 while the Core 2 Quad had to make do with 4GB of dual-channel 800MHz DDR 2.

Intel's performance numbers for Clarkdale's on-board IGP put it well ahead of the G45 chipset IGP it's based upon: around 50 per cent in 3DMark Vantage tests. Intel isn't giving out speeds and feeds for the chip - which is fabbed at 45nm to the G45 IGP's 65nm - but officials did admit that the Clarkdale one has more shader units and is clocked higher.

However, it's done, it does mean mainstream Intel graphics performance will get better when Clarkdale debuts.

Real-world tests conducted on Clarkdale's mobile sibling, Arrandale, showed a significant speed lead over a comparably-priced Core 2 Duo system. Tests included importing photos and decompressing a 256-bit AES-encrypted file archive. Both 'dale chips provided extra instructions for processing AES algorithms, the basis for many data security products, including Microsoft's BitLocker.

Remember that these are Intel's numbers, not ours. We will be running our own benchmarks in due course. ®

The essential guide to IT transformation

More from The Register

next story
Reg man looks through a Glass, darkly: Google's toy ploy or killer tech specs?
Tip: Put the shades on and you'll look less of a spanner
So, Apple won't sell cheap kit? Prepare the iOS garden wall WRECKING BALL
It can throw the low cost race if it looks to the cloud
One step closer to ROBOT BUTLERS: Dyson flashes vid of VACUUM SUCKER bot
Latest cleaner available for world+dog in September
Samsung Gear S: Quick, LAUNCH IT – before Apple straps on iWatch
Full specs for wrist-mounted device here ... but who'll buy it?
Apple promises to lift Curse of the Drained iPhone 5 Battery
Have you tried turning it off and...? Never mind, here's a replacement
Now that's FIRE WIRE: HP recalls 6 MILLION burn-risk laptop cables
Right in the middle of Burning Mains Man week
Apple's iWatch? They cannae do it ... they don't have the POWER
Analyst predicts fanbois will have to wait until next year
Tim Cook in Applerexia fears: New MacBook THINNER THAN EVER
'Supply chain sources' give up the goss on new iLappy
HUGE iPAD? Maybe. HUGE ADVERTS? That's for SURE
Noo! Hand not big enough! Don't look at meee!
prev story

Whitepapers

Top 10 endpoint backup mistakes
Avoid the ten endpoint backup mistakes to ensure that your critical corporate data is protected and end user productivity is improved.
Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Backing up distributed data
Eliminating the redundant use of bandwidth and storage capacity and application consolidation in the modern data center.
The essential guide to IT transformation
ServiceNow discusses three IT transformations that can help CIOs automate IT services to transform IT and the enterprise
Next gen security for virtualised datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.