![]() None of Intel's HEDT processors feature display output capacity but, ignoring QuickSync functionality, this is unlikely to concern a market audience that is highly likely to exploit the performance of a discrete graphics card. Three graphics cards running at PCIe x8 bandwidth (which gives a small performance hit in most games from our previous testing), in addition to a PCIe 3.0 x4-fed SSD capable of 32Gbps transfers, are supported by the 5820K's lanes.Ī less relevant (to many gamers and enthusiasts) difference comes from the LGA1150 part's on-board graphics chip which provides display capability. That's a positive to gamers who want to use more than two graphics cards, or perhaps high-speed PCIe storage which triggers a bandwidth conundrum on many Z97 motherboards. Secondly, the 5820K provides 28 PCIe 3.0 lanes, as opposed to the 16 offered by the 4790K and other LGA1150 chips. But production rates will ramp up, forcing prices down and module performance (most simplistically from speed increases) in the right direction. Haswell-E, and therefore the 5820K, supports quad-channel DDR4 memory, whereas the LGA1150-based 4790K utilises DDR3.Īt the moment, support for the former is more of a hindrance than a benefit, with its availability still limited and pricing high. Two other critical differences come in the form of memory and PCIe connectivity. There's clear daylight between the six-core 5820K and the mid-range 4790K and its four Haswell-powered cores.Ĭlearly, one of the key features that 15% cost increase buys is two extra cores, but there's also an extra 7MB of cache to offset the 0.7-0.8GHz stock-clock compromise. Skip forward twelve months and Intel has stepped up competition another notch by producing the entry-level Haswell-E 5820K with six hyper-threading cores. Four cores versus six on all other HEDT parts was, perhaps, the 4820K's critical flaw, not to mention strong competition from the already-released mid-range Haswell processors. One feature alone was enough to make the chip a far more valuable proposition than its multiplier-locked predecessor. That ‘K' suffix represented the first time in recent memory (we're talking pre-Bloomfield) that Intel's entry-level High-End Desktop (HEDT) processor shipped with an unlocked multiplier. When Intel introduced the Ivy Bridge-E 4820K in September 2013, it was an interesting launch into the market. We investigate if that 15% cost increase buys the LGA2011-3 5820K a worthwhile performance benefit. Interestingly, its £300 availability puts the Haswell-E 5820K £40 above the price tag of mid-range Haswell's desktop flagship – the Devil's Canyon 4790K. Three ton is still a sizable amount of money to drop on a processor, but it does mark a price-point that is reachable for a wider enthusiast audience, as has been proven in many previous CPU generations. That brings us on to the six-core 5820K and its £300 asking price. The core-trimmed 5930K helps reduce that asking price below half-a-grand, but at £440, it's still a considerable investment in its own right. While the octa-core, £770 Core i7 5960X is an undeniable powerhouse, it is also considerably past the budget threshold of many consumers. There's an interesting point in the processor market and that is the position right where many enthusiasts will draw a line when buying their shiny new chip. ![]()
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