Feeds

Intel 'Lynnfield'

Next-gen Core i7 - and Core i5

  • alert
  • submit to reddit

Top three mobile application threats

We benchmarked the Core 2 QX9650 on an Asus Maximus II Gene motherboard with an Intel P45 chipset that supports DDR 2 Ram. We combined the Core i7 940 with an EVGA X58 SLI mobo which has an Intel X58 chipset and which uses DDR 3.

Gigabyte GA-P55M-UD4

Gigabyte's GA-P55M-UD4: nice mobo, but not yet finished

In all three cases, we adjusted the memory multiplier to keep the speed close to 1066MHz so the memory shouldn’t be a factor in our tests. Other hardware consists of an Intel X25-M SSD and a AMD ATI Radeon HD 4890 graphics card. We used 32-bit Windows Vista Ultimate Edition.

We’d love to be able to give you chapter and verse on our test results but that’s not possible, thanks to the NDA. However, the graphs should make the following points clear. At standard clock speed, the QX9650 sets a decent standard but it was beaten in most of the benchmarks by the i7 940. The i7 870 takes things a step further and trounced the i7 940 in every test, presumably thanks to the enhanced Turbo Boost and despite the reduced memory bandwidth.

More impressively, this extra performance is delivered with a power draw that is 40W less than the i7 940 consumes.

The comparison at standard clock speed was fairly straightforward but things took a turn for the complicated when we started overclocking. The first candidate was QX9650 where we disabled SpeedStep, increased the CPU core voltage by 0.2V and cranked up the frontside bus from 333MHz to 420MHz to give a clock speed of 3.78GHz.

CPU-Z: Core i7 870

Next we moved on to Core i7 940. Again, we disabled SpeedStep and increased the QPI voltage by a hefty percentage from 1.1V to 1.5V. With that done, we could raise the base clock from 133MHz to 160MHz to give a clock speed of 3.53GHz. That’s fairly unimpressive as we have regularly achieved clock speeds of 3.8GHz and 3.9GHz with the i7 920. Our 3.53GHz Core i7 had performance that was almost identical to the 3.78GHz QX9650 with the exception of DivX 7 recoding as Core i7 supports SSE 4.2 which gives it an advantage over the Core 2's SSE 4.0.

Combat fraud and increase customer satisfaction

More from The Register

next story
Feast your PUNY eyes on highest resolution phone display EVER
Too much pixel dust for your strained eyeballs to handle
Samsung Galaxy S5 fingerprint scanner hacked in just 4 DAYS
Sammy's newbie cooked slower than iPhone, also costs more to build
Microsoft lobs pre-release Windows Phone 8.1 at devs who dare
App makers can load it before anyone else, but if they do they're stuck with it
Report: Apple seeking to raise iPhone 6 price by a HUNDRED BUCKS
'Well, that 5c experiment didn't go so well – let's try the other direction'
Leaked pics show EMBIGGENED iPhone 6 screen
Fat-fingered fanbois rejoice over Chinternet snaps
US mobile firms cave on kill switch, agree to install anti-theft code
Slow and kludgy rollout will protect corporate profits
Rounded corners? Pah! Amazon's '3D phone has eye-tracking tech'
Now THAT'S what we call a proper new feature
Zucker punched: Google gobbles Facebook-wooed Titan Aerospace
Up, up and away in my beautiful balloon flying broadband-bot
Sony battery recall as VAIO goes out with a bang, not a whimper
The perils of having Panasonic as a partner
NORKS' own smartmobe pegged as Chinese landfill Android
Fake kit in the hermit kingdom? That's just Kim Jong-un-believable!
prev story

Whitepapers

Designing a defence for mobile apps
In this whitepaper learn the various considerations for defending mobile applications; from the mobile application architecture itself to the myriad testing technologies needed to properly assess mobile applications risk.
3 Big data security analytics techniques
Applying these Big Data security analytics techniques can help you make your business safer by detecting attacks early, before significant damage is done.
Five 3D headsets to be won!
We were so impressed by the Durovis Dive headset we’ve asked the company to give some away to Reg readers.
The benefits of software based PBX
Why you should break free from your proprietary PBX and how to leverage your existing server hardware.
Securing web applications made simple and scalable
In this whitepaper learn how automated security testing can provide a simple and scalable way to protect your web applications.