![]() If you are using a setup with two or more graphics cards (SLI/Crossfire), the PCIe bandwidth is limited at x8:x8. Here again the performance difference is trivial as running today's fastest cards barely utilizes all that bandwidth, but two x16 and then room for another x8 obviously is much better. The one thing that people grumble about the most is the relatively small number of available PCIe lanes (16) for graphics cards. What the effect will be on real-world performance, well that's trivial at best. Quad-channel is fun stuff, crazy numbers is what you'll see. That's fast enough to drive a mid-range graphics card ported through system memory fairly well, well if we exclude latency of course. At launch for IBE quad-channel 1866 MHz low-voltage DDR3 is supported out of the box, and that means an increase from 29.9 GB/s to 59.7 GB/s of available memory bandwidth. Sandy & Ivy Bridge and its dual-channel controller hauls ass, make no mistake there. Regardless of what you think about it, progress is obviously always a good thing.Īdmittedly, the Intel memory controller, whatever platform you choose, is excellent. Intel's 64-bit memory controllers rock hard and a lot certainly happened. Over the space of four years we went from dual-channel towards triple-channel on X58 (Gulftown), then back to dual-channel with the Sandy/Ivy Bridge and Haswell architecture and with Sandy Bridge-E and Ivy Bridge-E we get quad-channel memory support. But with triple-channel performance as good as it is on X58 it was remained thinking. Back in 2008 we already reported that the initial Nehalem architecture was quad-channel ready, they just had never implemented it. One of the more hip features of the X79 / SBE and IBE platform is quad-channel memory.
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