Feeds

Intel 'Lynnfield'

Next-gen Core i7 - and Core i5

  • alert
  • submit to reddit

Secure remote control for conventional and virtual desktops

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.

Security for virtualized datacentres

More from The Register

next story
PEAK APPLE: iOS 8 is least popular Cupertino mobile OS in all of HUMAN HISTORY
'Nerd release' finally staggers past 50 per cent adoption
Apple spent just ONE DOLLAR beefing up the latest iPad Air 2
New iPads look a lot like the old one. There's a reason for that
Google Glassholes are UNDATEABLE – HP exec
You need an emotional connection, says touchy-feely MD... We can do that
Microsoft fitness bands slapped on wrists: All YOUR HEALTH DATA are BELONG TO US
Wearable will deliver 'actionable insights for healthier living'
Caterham Seven 160 review: The Raspberry Pi of motoring
Back to driving's basics with a joyously legal high
Pixel mania: Apple 27-inch iMac with 5K Retina display
Cupertino computer in value for money shocker
FTDI yanks chip-bricking driver from Windows Update, vows to fight on
Next driver to battle fake chips with 'non-invasive' methods
prev story

Whitepapers

Why cloud backup?
Combining the latest advancements in disk-based backup with secure, integrated, cloud technologies offer organizations fast and assured recovery of their critical enterprise data.
Forging a new future with identity relationship management
Learn about ForgeRock's next generation IRM platform and how it is designed to empower CEOS's and enterprises to engage with consumers.
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.
Storage capacity and performance optimization at Mizuno USA
Mizuno USA turn to Tegile storage technology to solve both their SAN and backup issues.
Protecting users from Firesheep and other Sidejacking attacks with SSL
Discussing the vulnerabilities inherent in Wi-Fi networks, and how using TLS/SSL for your entire site will assure security.