Feeds

Intel 'Lynnfield'

Next-gen Core i7 - and Core i5

  • alert
  • submit to reddit

Internet Security Threat Report 2014

We reset the IMC voltage back to Auto and changed the CPU Core Voltage from a fixed value to an offset value. This means that the motherboard uses the regular dynamic voltage setting plus an amount that we choose in the Bios. We selected +0.2V and found that our Core i7 870 would run most of our benchmark tests at 3.96GHz with Turbo Boost and HT enabled. We got better results by disabling Turbo Boost which makes sense as 3.96GHz is way beyond the realms of the maximum 3.6GHz Turbo Boost speed that applies with this CPU. In addition, it was clear that the stock Intel CPU cooler was at the limit of its performance.

CPU-Z: Core i7 870

By this stage, we also had a sample of a 2.66GHz Core i5 750 so we strapped it to the Asus on the same +0.2V setting and found it would overclock to 3.8GHz. The absence of HyperThreading was apparent in Cinebench, but there's no denying this an impressive turn of speed. It also suggests that Lynnfield has the same 1GHz potential for overclocking as the i7 900.

With this information we returned to the Gigabyte and tried to use the same method for overclocking but it was not possible. In the Gigabyte Bios, you either set the CPU Core voltage as Auto or as a fixed value, but it does not offer the option applying an offset that delivered the results on the Asus board. We don’t want to write off the GA-P55M-UD4 as it was clearly using a Beta Bios, but this is certainly something that overclockers should watch for once Lynnfield goes on sale.

CPU-Z: Core i5 750

Verdict

All in all, we were deeply impressed by the performance and low power requirement of Lynnfield and feel confident that the Core i7 860 will be the processor of choice through to the end of 2009. This doesn’t nail down the coffin lid on Core i7 900, but it does mean that the 32nm 'Westmere' Core i7 will have to deliver impressive results and the subsequent six-core update will need to play a blinder. To the best of our knowledge, LGA1156 will top out at quad core, but that will put it bang in the mainstream for the next year or three. ®

Intelligent flash storage arrays

More from The Register

next story
Chipmaker FTDI bricking counterfeit kit
USB-serial imitators whacked by driver update
Xperia Z3: Crikey, Sony – ANOTHER flagship phondleslab?
The Fourth Amendment... and it IS better
DOUBLE BONK: Testy fanbois catch Apple Pay picking pockets
Users wail as tapcash transactions are duplicated
Microsoft to enter the STRUGGLE of the HUMAN WRIST
It's not just a thumb war, it's total digit war
Google Glassholes are UNDATEABLE – HP exec
You need an emotional connection, says touchy-feely MD... We can do that
prev story

Whitepapers

Choosing cloud Backup services
Demystify how you can address your data protection needs in your small- to medium-sized business and select the best online backup service to meet your needs.
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.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.
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.