Articles: CPU
 

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Testbed Configuration

To test different types of Clarkdale processors we took a sample for each type of this dual-core CPU:

  • Core i5-661 with the nominal clock speed of 3.33 GHz, Hyper-Threading and Turbo Boost support, which increase the clock frequency of this processor to 3.46 GHz or 3.6 GHz under different types of workload.

  • Core i3-540 with the nominal frequency of 3.06 GHz and Hyper-Threading support. This CPU doesn’t support Turbo Boost.

  • Pentium G6950 with the nominal frequency of 2.8 GHz. This processor belongs to the low-end segment that is why it not only has no Hyper-Threading and Turbo Boost support, but also features smaller 3 MB L3 cache.

We are going to compare these three new processors against several current typical solutions with two, three and four cores for LGA1156, LGA775 and Socket AM3 systems that belong to the mainstream segment and from the price point prospective can compete against Core i5, Core i3 and Pentium G series CPUs.

The list below shows all the hardware components that were used during our test session:

  • CPUs:
    • AMD Phenom II X4 965 (Deneb, 3.4 GHz, 4 x 512 KB L2, 6 MB L3);
    • AMD Phenom II X4 925 (Deneb, 2.8 GHz, 4 x 512 KB L2, 6 MB L3);
    • AMD Athlon II X4 630 (Propus, 2.8 GHz, 4 x 512 KB L2);
    • AMD Athlon II X3 435 (Rana, 2.9 GHz, 3 x 512 KB L2);
    • AMD Phenom II X2 550 (Callisto, 3.1 GHz, 2 x 512 KB L2, 6 MB L3);
    • Intel Core 2 Quad Q9550 (Yorkfield, 2.83 GHz, 1333 MHz FSB, 2 x 6 MB L2);
    • Intel Core 2 Quad Q9400 (Yorkfield, 2.66 GHz, 1333 MHz FSB, 2 x 3 MB L2);
    • Intel Core 2 Quad Q8400 (Yorkfield, 2.66 GHz, 1333 MHz FSB, 2 x 2 MB L2);
    • Intel Core 2 Duo E8500 (Wolfdale, 3.16 GHz, 1333 MHz FSB, 6 MB L2);
    • Intel Core 2 Duo E7600 (Wolfdale-3M, 3.06 GHz, 1067 MHz FSB, 3 MB L2);
    • Intel Pentium E6500 (Wolfdale-2M, 2.93 GHz, 1067 MHz FSB, 2 MB L2);
    • Intel Core i7-860 (Lynnfield, 2.8 GHz, 4 x 256 KB L2, 8 MB L3);
    • Intel Core i5-750 (Lynnfield, 2.66 GHz, 4 x 256 KB L2, 8 MB L3);
    • Intel Core i5-661 (Clarkdale, 3.33 GHz, 2 x 256 KB L2, 4 MB L3);
    • Intel Core i3-540 (Clarkdale, 3.06 GHz, 2 x 256 KB L2, 4 MB L3);
    • Intel Pentium G6950 (Clarkdale, 2.8 GHz, 2 x 256 KB L2, 3 MB L3).
  • Mainboards:
    • ASUS P5Q3 (LGA775, Intel P45, DDR3 SDRAM);
    • ASUS P7P55D Premium (LGA1156, Intel P55 Express);
    • Gigabyte MA790FXT-UD5P (Socket AM3, AMD 790FX + SB750, DDR3 SDRAM).
  • Memory:
    • 2 x 2 GB, DDR3-1600 SDRAM, 8-8-8-24 (Kingston KHX1600C8D3K2/4GX);
    • 2 x 2 GB, DDR3-1333 SDRAM, 7-7-7-20 (Mushkin 996601).
  • Graphics card: ATI Radeon HD 5870*.
  • HDD: Western Digital VelociRaptor WD3000HLFS.
  • PSU: Tagan TG880-U33II (880 W).
  • OS: Microsoft Windows 7 Ultimate x64.
  • Drivers:
    • Intel Chipset Driver 9.1.1.1020;
    • ATI Catalyst 9.12 Display Driver.

As you can notice from the list of used testbed components, we didn’t use any mainboards that would allow us to use the graphics adapter integrated into new Clarkdale processors. Today we are going to leave out the discussion of its performance. But very soon we will offer you an in-depth article devoted to performance comparison between the Clarkdale integrated graphics core and integrated chipsets for LGA775 and Socket AM3 platforms.

* - We would like to thank AMD Russia for providing us with ATI Radeon HD 5870 graphics card for this testbed.

 
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