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Core i7-975 Extreme Edition - Intel
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Core i7-975 Extreme Edition
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General Info
DesignerIntel
ManufacturerIntel
Model Numberi7-975
Part NumberAT80601002274AA,
BX80601975
S-SpecSLBEQ
Q1HH (QS)
MarketDesktop
IntroductionJun 2, 2009 (announced)
Jun 2, 2009 (launched)
End-of-lifeFebruary 2011 (last order)
August 2011 (last shipment)
General Specs
FamilyCore i7EE
SeriesCore i7-900
LockedNo
Frequency3333 MHz
Turbo FrequencyYes
Turbo Frequency3600 MHz (1 core),
3467 MHz (2 cores),
3467 MHz (3 cores),
3467 MHz (4 cores)
Bus typeQPI
Bus speed3200 MHz
Bus rate6.4 GT/s
Clock multiplier25
CPUID106A5
Microarchitecture
MicroarchitectureNehalem
PlatformX58
Core NameBloomfield
Core SteppingD0
Process45 nm
Transistors731,000,000
TechnologyCMOS
Die263 mm²
Word Size64 bit
Cores4
Threads8
Max CPUs1 (Uniprocessor)
Max Memory24 GiB
Electrical
TDP130 W
OP Temperature5 °C – 67.9 °C

The Core i7-975 Extreme Edition is a 64-bit quad-core microprocessor introduced by Intel in mid-2009. The i7-975 along with the i7-965 became Intel's flagship desktop microprocessors for the Nehalem microarchitecture. This processor operates at 3.33 GHz with turbo frequency of up to 3.6 GHz for a single core. This chip supports up to 24 GiB of memory and has a thermal design power of 130 W.

Cache[edit]

Main article: Nehalem's Cache
Cache Info [Edit Values]
L1I$ 128 KiB
0.125 MiB
131,072 B
1.220703e-4 GiB
4x32 KiB 4-way set associative (per core; writeback/allocate)
L1D$ 128 KiB
0.125 MiB
131,072 B
1.220703e-4 GiB
4x32 KiB 8-way set associative (per core; writeback/allocate)
L2$ 1 MiB
1,024 KiB
1,048,576 B
9.765625e-4 GiB
4x256 KiB 8-way set associative (per core; writeback/allocate)
L3$ 8 MiB
8,192 KiB
8,388,608 B
0.00781 GiB
16-way set associative (writeback/allocate)

Memory controller[edit]

Integrated Memory Controller
Type DDR3-800, DDR3-1066
Controllers 1
Channels 3
ECC Support No
Max bandwidth 25,600 MB/s
Max memory 24 GiB

Graphics[edit]

This MPU has no integrated graphics processing unit.

Features[edit]

[Edit/Modify Supported Features]

Cog-icon-grey.svg
Supported x86 Extensions & Processor Features
MMXMMX Extension
SSEStreaming SIMD Extensions
SSE2Streaming SIMD Extensions 2
SSE3Streaming SIMD Extensions 3
SSSE3Supplemental SSE3
NXNo-eXecute
HTHyper-Threading
TBT 1.0Turbo Boost Technology 1.0
EISTEnhanced SpeedStep Technology
EPTExtended Page Tables (SLAT)

See also[edit]

base frequency3,333 MHz (3.333 GHz, 3,333,000 kHz) +
bus rate6,400 MT/s (6.4 GT/s, 6,400,000 kT/s) +
bus speed3,200 MHz (3.2 GHz, 3,200,000 kHz) +
bus typeQPI +
clock multiplier25 +
core count4 +
core nameBloomfield +
core steppingD0 +
cpuid106A5 +
designerIntel +
die area263 mm² (0.408 in², 2.63 cm², 263,000,000 µm²) +
familyCore i7EE +
first announcedJune 2, 2009 +
first launchedJune 2, 2009 +
full page nameintel/core i7ee/i7-975 +
has extended page tables supporttrue +
has featureHyper-Threading Technology +, Turbo Boost Technology 1.0 +, Enhanced SpeedStep Technology + and Extended Page Tables +
has intel enhanced speedstep technologytrue +
has intel turbo boost technology 1 0true +
has locked clock multiplierfalse +
has second level address translation supporttrue +
has simultaneous multithreadingtrue +
instance ofmicroprocessor +
l1d$ description8-way set associative +
l1d$ size0.125 MiB (128 KiB, 131,072 B, 1.220703e-4 GiB) +
l1i$ description4-way set associative +
l1i$ size0.125 MiB (128 KiB, 131,072 B, 1.220703e-4 GiB) +
l2$ description8-way set associative +
l2$ size1 MiB (1,024 KiB, 1,048,576 B, 9.765625e-4 GiB) +
l3$ description16-way set associative +
l3$ size8 MiB (8,192 KiB, 8,388,608 B, 0.00781 GiB) +
last orderFebruary 2011 +
last shipmentAugust 2011 +
ldateJune 2, 2009 +
manufacturerIntel +
market segmentDesktop +
max cpu count1 +
max memory24,576 MiB (25,165,824 KiB, 25,769,803,776 B, 24 GiB, 0.0234 TiB) +
max operating temperature67.9 °C +
microarchitectureNehalem +
min operating temperature5 °C +
model numberi7-975 +
nameCore i7-975 Extreme Edition +
part numberAT80601002274AA + and BX80601975 +
platformX58 +
process45 nm (0.045 μm, 4.5e-5 mm) +
s-specSLBEQ +
s-spec (qs)Q1HH +
seriesCore i7-900 +
tdp130 W (130,000 mW, 0.174 hp, 0.13 kW) +
technologyCMOS +
thread count8 +
transistor count731,000,000 +
turbo frequency (1 core)3,600 MHz (3.6 GHz, 3,600,000 kHz) +
turbo frequency (2 cores)3,467 MHz (3.467 GHz, 3,467,000 kHz) +
turbo frequency (3 cores)3,467 MHz (3.467 GHz, 3,467,000 kHz) +
turbo frequency (4 cores)3,467 MHz (3.467 GHz, 3,467,000 kHz) +
word size64 bit (8 octets, 16 nibbles) +