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Next Generation Intel
Haswell Microarchitecture
Voltage Planes for Performance Tuning
DDR
Cores
Last Level Cache
System
Agent
PCIe
*
DMI
pGfx
V
CCIN
V
DDQ
• 1.5V Nom
for DDR3
• <=1.65V
for XMP
• 1.35V
Nom for
DDR3L
iVR
Core
pGfx
• V
CCIN
: SVID 1.8V Nom up to 2.3V+, static V up to 3.04V
• V
CORE
: dynamic additional V, static V up to 2.0 V
• V
RING
: dynamic additional V, static V up to 2.0 V
• V
GT
: dynamic additional V, static V up to 2.0 V
• V
SA,
V
IOA
,
V
IOD
: Up
to 500mV
Offset V
from
nominal
Ring
SA
Ring
IOA,IOD
PCIe* = PCI Express
*