Though AMD is currently NVIDIA's main rival in the field of gaming and professional GPUs, but we should give credit to the latter's management -- they do not suffer from "competitive prejudices". As a result, NVIDIA's timely launched chipset family for the AMD platform includes many more products (which are also more interesting as far as functionality is concerned) than company's chipset family for the Intel platform. On the face of it, it seems strange, because Intel does not make good integrated chipsets. So, from the technical point of view, it would have been easier for NVIDIA to compete there. But if we take a closer look at the situation in this field, we'll see that apparently Intel's strategy is aimed at "wiping out" all competitors. If not technically, then using other leverage, e.g. by selling expensive and unpopular chipsets as a mandatory addition to more popular solutions (which forces motherboard makers to acquire fewer chipsets from NVIDIA) and by trying to shorten product life cycles. As a result, it's just inexpedient for competitors to spend money on chipset design. Their products will just have no time to pay off, because Intel processors will "suddenly" reveal a new FSB clock rate and will soon change sockets to a backward-incompatible one.
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Source: Digit-Life