Monday, January 14th 2013
BClk-based Overclocking Returns with Haswell?
With Intel's 2011-launched Core "Sandy Bridge" processors, Intel CPU overclocking as we know it changed. No longer could you overclock the CPU by stepping up BClk (base clock), a frequency that processors use to time various components, including the effective clock speed, and in some cases, memory, and uncore. Sandy Bridge left consumers with only one effective way of overclocking, stepping up an unlocked BClk multiplier, a feature only available with a handful expensive models.
According to a Hardcoreware report, when Intel took up the "one BClk to rule them all" approach with Sandy Bridge, it may have overlooked the possibility of the integrated GPU waking other components up from lower power states to use the L3 cache, affecting the chip's overall energy efficiency, which carried on to successive Core "Ivy Bridge" silicon. "Haswell" may present Intel with an opportunity to split core and uncore from sharing the same base clock, and as such it could be possible to crank up CPU clock speeds using BClk, without destabilizing the uncore. The author admits this is speculation on his part, but quite likely.
Source:
Hardcoreware
According to a Hardcoreware report, when Intel took up the "one BClk to rule them all" approach with Sandy Bridge, it may have overlooked the possibility of the integrated GPU waking other components up from lower power states to use the L3 cache, affecting the chip's overall energy efficiency, which carried on to successive Core "Ivy Bridge" silicon. "Haswell" may present Intel with an opportunity to split core and uncore from sharing the same base clock, and as such it could be possible to crank up CPU clock speeds using BClk, without destabilizing the uncore. The author admits this is speculation on his part, but quite likely.
36 Comments on BClk-based Overclocking Returns with Haswell?
just because you buy a $300 video card doesn't mean that's what everyone else does. the intel HD 4000 graphics are good enough for 99% of people who aren't playing the newest AAA games. even if you are using a video card why do you care if the cpu has a igpu anyway? if they launched a version of the cpu without the igpu it would be the same exact thing with a disabled igpu.
i did get a good laugh at the person who is going to spend more to get a socket 2011 cpu because it doesn't have a igpu. the real reason to get 2011 is for the 6 core cpu's.
The most expensive part of a 2011 system is the mobo, but the benefits of 2011 are like Aquinus said, flexible overclocking(not restricted to multiplier only), quad-channel memory, VT-d, more L3 cache, and one he didn't mention, SB-E has TWICE the native pci-e lanes of SB and IVB.
That being said, LGA2011 is an enthusiast platform and comes with the price and features to match.
Hell, 1366 is still a very formidable platform. Here's to hoping 2011 holds up as well as 1366 has:toast: