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[icrontic] Nehalem Overclocking Calculator

1582 Views 2 Replies 3 Participants Last post by  Licht

Armed with the new QuickPath Interconnect, the Core i7 has a whole suite of multipliers and frequencies that make overclocking more complicated than ever. But at Icrontic, you should know we like to make technology easy. That’s why we’re proud to both announce and release NehalemCalc v1.0 to help enthusiasts keep track of this intricate numbers game.

Take a look beyond the jump to grab the app and see why Nehalem has changed the rules of overclocking.

With the adoption of QuickPath Interconnect, the traditional model of the frontside bus has been abandoned in favor of the BClock. Where the FSB frequency once help set the speed for the CPU and the memory, the new BClock helps set the CPU, DRAM, L3 cache, memory controller, and system bus frequencies.

Now that the FSB is out the door, the Nehalem platform is rigged with a high-speed bi-directional system bus. This QPI bus runs on an independent frequency and uses its own set of multipliers. Altering this frequency can substantially impact the speed at which add-in cards and peripherals transfer data on a Nehalem platform.

Yet another new and independent frequency with its own set of multipliers. The uncore frequency sets the speed of both the Nehalem’s on-die memory controller and the L3 cache. Applying memory dividers to the uncore clockspeed also happens to set the speed of the DDR3-SDRAM configured in the system.

Doing away with paltry multipliers like 6x, the Core i7 uses multipliers of up to 25x in multiplying the BClock to generate the CPU’s frequency.

Delicious sanity!
Hey, keeping track of three multipliers and five clockspeeds is a dizzying task even for the most seasoned of overclockers. Let us help, download NehalemCalc v1.0 today.

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