Below, is an abridged portion from Passmark's ranking of the best CPUs. Highlighted in red are two of the least expensive desktop options: Intel's $315 Core i7-2600K, a 4-core Sandy Bridge CPU at 3.4Ghz (boost speed at 3.8Ghz) for desktops, and AMD's $267 Bulldozer FX-8150, an 8-core CPU running at 3.6Ghz. Notice how the 4-core / 8 thread CPU outperforms the 8-core / 4 module CPU.
Some other things worth noting: the Core i7-995X and Xeon W3690 are both 6-core CPUs (and are actually very similar inside); the Core i7-2960XM is a second generation mobile CPU, the top of the line mobile.
I have a laptop running an i7-2720QM; by comparison, 2010's top mainstream mobile processor, i7-820QM is much slower, and much more expensive than the second generation i7 CPUs. You can see why I jumped on a refurbished Dell 17.3" laptop running i7-2720QM, for $825.
Core i7-995X | 10945 |
Xeon-W3690 | 10227 |
Core i7-2600K | 9971 |
Core i7-2960XM | 9084 |
AMD FX-8150 | 8681 |
Core i7-2720QM | 7,123 |
Core i7-820QM | 3,557 |
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