- Intel's 45 nm Penryn CPU: 4 GHz Air Cooled
- Does Cache Size Really Boost Performance?
- AMD's Athlon 64 X2 5000+ Black Edition
- The Truth About PC Power Consumption
- Parallel Processing, Part 1: CPU Cores
- What if Your CPU Cooler Fails?
- $89 Pentium Dual Core that Runs at 3.2 GHz
- Can CPUs Make PCs Faster & Quieter?
- Extreme FSB 2: The Quad-Core Advantage?
- Extreme FSB: Taking the E6750 Beyond 4 GHz
- some SAD news to AMD fans.
- Q9450 or Q8400
- Anand does Nehalem!!!
- THGC Needs You -Team 40051
- How do you build a dual xeon system?
- 550 FSB!!!!
- Need some advice on how to set this up properly
- Pentium D 960 @4.16 GHz vs QUAD CORE Q6700 @ 2.66 GHz in games
- HOWTO: Overclock C2Q (Quads) and C2D (Duals) - Guide v1.6.1
- Q6600 Temperatures + SpeedFan
Source: Tom's Hardware US – Keywords: dual, quad
Topics: Buyer's Guides, Overclocking
Syndication:
Processor - G0 Stepping Is A Must
Let's move on to the technical details of the processors and how to recognize the right model and stepping.

Core 2 Quad Q6600 (2.40 GHz)

Core 2 Duo E6750 (2.66 GHz)
| Processor Comparison | ||
|---|---|---|
| Core 2 Quad Q6600 | Core 2 Duo E6750 | |
| Code Name | Kentsfield | Conroe |
| Taktrate | 2.40 GHz | 2.66 GHz |
| FSB | 266 MHz | 333 MHz |
| Multiplier | 9x | 8x |
| L2-Cache | 2x 4 MB | 1x 4 MB |
| TDP | 95 Watts | 65 Watts |
| Stepping | G0 | G0 |
| sSpec Number | SLACR | SLA9V |
| Fabrication Process | 65 nm | 65 nm |
The Core 2 Quad Q6600 with the Kentsfield core runs at 2.4 GHz on a 266 MHz FSB (1066 QDR). Its lower FSB gives it an advantage when overclocking, since the motherboard's Northbridge does not need to be able to reach extremely high clock speeds. The CPU consists of four cores, with two cores each sharing 4 MB of L2 cache. Theoretically, its power consumption is twice that of the Core 2 Duo, since it contains twice as many cores.
Intel's Core 2 Duo E6750 uses the Conroe core and runs at 2.66 GHz, which is slightly faster than the Q6600. The dual-core chip's FSB is also faster, which runs at 333 MHz (1333 QDR). This means that the motherboard has to deal with higher frequencies when the processor is overclocked. The CPU's two cores share 4 MB of L2 cache.
Buying The Right Model

The sSpec number in the product code
Not every shop gives you the processor's stepping version. In some cases, the sSpec number, which precisely identifies the processor, can also provide more information. If you buy the CPU in a brick-and-mortar store, the stepping version probably won't be stated, neither on the box nor on the processor itself. This is where the sSpec number comes in, which you can find at the end of the product code of the CPU's retail box.

The sSpec number on the CPU.
Our processors are unfortunately not very good examples, since they are both engineering samples that don't have sSpec numbers.
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