Since the processor Intel is using to launch the new family is an Extreme Edition model, it comes with an unlocked multiplier. That allows us to overclock the CPU without having to increase the FSB speed.
The default multiplier of the QX9650 is 9x, which results in a clock speed of exactly 3.0 GHz on a 333 MHz FSB (1333 QDR). To kick off our overclocking tests, we increased the multiplier to 10x.
We were able to overclock the QX9650 to 3.33 GHz and boot into Vista without having to increase the default core voltage of 1.25 V any further. Of course, we expected no less from a 45 nm CPU.
The QX9650 can operate at 3.33 GHz at its stock voltage.
We ran Prime95's torture test (version 25.4) to see whether the processor was stable at this clock speed, and it passed with flying colors.
Intel is giving this extra performance away for free - the processor's frequency can be increased by 11% without the need for higher core voltage.
- Revamping The Core 2 Architecture - New Flagship: Extreme QX9650
- New Dielectric Minimizes Leakage Currents
- 45 nm - Higher Yield, Smaller Die Area
- 12 MB L2 Cache And SSE 4
- The Processor - Intel Core 2 QX9650
- Overclocking I - 3.33 GHz
- Overclocking II - 3.66 GHz
- Overclocking III - 3.8 GHz
- Overclocking IV - 4 GHz At Very High Voltage
- Overclocking V - 4 GHz At FSB 1600
- Overclocking - Up To 19% More Performance
- Overclocking To 4.0 GHz - FSB1600 Offers No Advantage
- Sensational: Idle Power Consumption Of Only 3.79 Watts
- Very Good - 73 Watts For Four Cores
- Lower Core Voltage - 1.250 Volts
- Operating Temperature - 12°C Lower
- Penryn-Based Core 2 CPUs - Models, Prices, New Boxed Cooler
- New Boxed Cooler
- Performance Comparison - Old Vs. New - 6.9% Better Performance
- Test Setup
- Software Configuration
- Benchmarks And Settings
- 3D Games: UT2004, Prey
- 3D Games: Quake 4, Warhammer
- 3D Games: Supreme Commander, Serious Sam 2
- 3D Rendering: Cinema 4D, 3D-Studio Max
- Applications: AVG, WinRAR
- Applications: Photoshop, PDF
- Applications: Deep Fritz
- Audio Encoding: ITunes, Lame
- Synthetic: Sandra CPU
- Synthetic: Sandra Memory
- Synthetic: Sandra Multimedia
- Synthetic: PC-Mark
- Synthetic: 3D-Mark
- Video Encoding: Xvid, Pinnacle Studio
- Video Encoding: Premiere, MainConcept
- Video Encoding: HDTV, DivX
- Video Encoding: CloneDVD
- Conclusion: Less Noise, More Efficiency, More Speed and More Overclocking Potential