Filter
Top Products
21
Enhanced BCLK Capabilities
Key Differences Between Generations
Intel
®
Core
™
i7
processors on
LGA2011
3
rd
Gen Intel Core
processors on
LGA1155
Next Gen Intel
Haswell
Microarchitecture
Coarse
Adjustment
BCLK multipliers
{1.0,1.25,1.67} input
to CPU
CPU adjusts PEG/DMI
ratios {5:5,5:4,5:3}
based on BCLK multi
None Select CPU PEG/DMI
ratios of {5:5,5:4,5:3}
depending on what
clock frequency you
request from PCH
Fine
External clock device
output adjustment ± 5-
7% over nominal
100MHz
PCH output
adjustment ± 5-7%
over nominal 100MHz
PCH output ± 5-7%
around frequency
points 100MHz,
125MHz, 167MHz
Range Peak
Observed
†
168 MHz
(non-continuous)
116.95 MHz >167 MHz
(non-continuous)
4th Generation Intel Core processors deliver BCLK
overclocking experience consistent with current
generation high-end platforms based on LGA2011
† This data was collected from overclocking forums and should be considered approximate for illustrative purposes only.