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Intel Core i7-3930K vs Core i7-3820 vs FX-8150 vs 990X vs 2700K Review

Intel Core i7-3930K vs Core i7-3820 vs FX-8150 vs 990X vs 2700K Review

Intel Sandy Bridge Extreme Core i7-3930K and Core i7-3820 vs AMD FX-8150, Core i7-2700K and Core i7-990X

The Core i7-3930K and Core i7-3820

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Intel Core i7-3930K
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Intel Core i7-3820

As with the i7-3960X the two lower specification models look very similar to every Intel Desktop CPU for the past few years when we look at the top side. They are mostly covered with the standard heatspreader, stamped with Intel’s branding and as with the top processor it is worth noting that this processor is more rectangular than square. Underneath we see a familiar appearance on the i7-3930K however the 3820 is notably different from the other Sandy Bridge-E chips, something we will explain shortly.

Looking first to the I7-3930K we have a 3.2GHz 6-core CPU with HyperThreading. This is a 32nm CPU which includes an integrated quad channel memory controller (1600MHz officially supported) and cache levels are set at 32KB L1 Data/Instruction, 256KB of L2 and a shared 12MB of L3 cache.

All of the key instruction sets are present including 64-bit support, SSE 4.2, virtualisation and advanced vector extensions. Then in addition to those we retain support for SpeedStep technology along with Turbo Boost which ensure we get the best balance of power efficiency and performance. On the 3960X the Turbo Boost hit a maximum of 3.9GHz, the 3930K rises to 3.8GHz.

Above we mentioned the slightly different appearance of the 3820 CPU and the reason for that rather than being the same CPU design as the 3900 series, tweaked to a different specification this is a new processor layout. Quad core based, again with hyperthreading, the i7-3820 runs at 3.6GHz with turbo up to 3.9GHz. L3 cache changes as well with 10MB on this processor but otherwise the features remain the same.

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Intel Core i7-3820 Intel Core i7-3930K

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Stuart Davidson

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