Feeds
80%

Intel 'Penryn' Core 2 Extreme QX9770 and X48 chipset

Say hello to the 1600MHz desktop FSB

Secure remote control for conventional and virtual desktops

2007's Top Products Intel has been busy sending out a batch of 'Penryn' Core 2 Extreme QX9770 processors to every tech site in the known universe, and if you take a look at some of the reviews that have popped up you’ll spot a common theme. The QX9770 is the first desktop processor to run on a 1600MHz frontside bus (FSB) but right now there are no desktop chipsets that support this new speed.

On the server side, Intel has 1600MHz covered with its 5400 series of Xeon chips and chipsets, but we’re in new territory on the desktop as the X38 chipset's FSB tops out at 1333MHz.

Intel Core 2 Extreme QX9770
Intel's Core 2 Extreme QX9770: Penryn-plus?

Early in 2008, Intel will launch a brand new chipset called the X48 which appears to be exactly the same as X38 but with the addition of the 1600MHz FSB - which makes us rather wonder why Intel didn’t simply name the new spin as X38 2.0. For the time being, most reviewers have been in a predicament as the only motherboards that support the QX9770 use either the X38 or the P35 chipset and have a Bios that has been modified by the motherboard manufacturer to accommodate the faster FSB.

Happily, Register Hardware has a trick up its sleeve: we have got our mitts on an Asus P5E3 Premium motherboard which uses X48 chipset. So we’re in a position to put the QX9770 through its paces using an Asus P5K3 Deluxe with a P35 chipset, a Gigabyte GA-X38T-DQ6 with an X38, and the P5E3 with the X48.

The QX9770 has a clock speed of 3.20GHz (8 x 400MHz) compared to the 3.00GHz QX9650 (9 x 333MHz) we reviewed last month. The TDP has increased from 130W to 136W, but other than that the two chips have identical specifications with four cores and support for the new SSE 4 instruction set. They're both made using a 45nm fabrication process.

Asus P5E3 Premium
Asus' P5E3 Premium: packing the X48 chipset

Starting with the Gigabyte motherboard, because it arrived first, we installed beta Bios F4a and ran the QX9650 to give us a baseline for comparison. PCMark05 is a good all-round benchmark for system performance, while DivX 6.7 uses SSE 4 to fully stress the latest processors. Finally, encoding AAC music files with iTunes gives a decent all-round idea of how much horsepower you’ve got in your PC.

Providing a secure and efficient Helpdesk

More from The Register

next story
TEEN RAMPAGE: Kids in iPhone 6 'Will it bend' YouTube 'prank'
iPhones bent in Norwich? As if the place wasn't weird enough
George Clooney, WikiLeaks' lawyer wife hand out burner phones to wedding guests
Day 4: 'News'-papers STILL rammed with Clooney nuptials
iPAD-FONDLING fanboi sparks SECURITY ALERT at Sydney airport
Breaches screening rules cos Apple SCREEN ROOLZ, ok?
Crouching tiger, FAST ASLEEP dragon: Smugglers can't shift iPhone 6s
China's grey market reports 'sluggish' sales of Apple mobe
A moment of brilliance? UPnP for Internet of Stuff lightbulbs
Thus doth tech of future illuminate present, etc
Apple's new iPhone 6 vulnerable to last year's TouchID fingerprint hack
But unsophisticated thieves need not attempt this trick
The British Museum plonks digital bricks on world of Minecraft
Institution confirms it's cool with joining the blocky universe
prev story

Whitepapers

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.
Storage capacity and performance optimization at Mizuno USA
Mizuno USA turn to Tegile storage technology to solve both their SAN and backup issues.
The next step in data security
With recent increased privacy concerns and computers becoming more powerful, the chance of hackers being able to crack smaller-sized RSA keys increases.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.
A strategic approach to identity relationship management
ForgeRock commissioned Forrester to evaluate companies’ IAM practices and requirements when it comes to customer-facing scenarios versus employee-facing ones.