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Intel Core i7-820QM
General Info
Designer	Intel
Manufacturer	Intel
Model Number	i7-820QM
Part Number	BY80607002904AK
S-Spec	SLBLX
Market	Mobile
Introduction	June 24, 2009 (announced) September 23, 2009 (launched)
Release Price	$546.00
Shop	Amazon
General Specs
Family	Core i7
Locked	Yes
Frequency	1,733.33 MHz
Turbo Frequency	3,066.66 MHz (1 core), 2,799.99 MHz (2 cores), 1,866.66 MHz (3 cores), 1,866.66 MHz (4 cores)
Bus type	DMI 1.0
Bus rate	2.5 GT/s
Clock multiplier	13
Microarchitecture
Microarchitecture	Nehalem
Platform	Calpella
Chipset	Ibex Peak
Core Name	Clarksfield
Core Family	6
Core Model	30
Core Stepping	B1
Process	45 nm
Transistors	774,000,000
Technology	CMOS
Die	296 mm²
Word Size	64 bit
Cores	4
Threads	8
Max Memory	8 GiB
Multiprocessing
Max SMP	1-Way (Uniprocessor)
Electrical
Vcore	1.075 V ± 0.325 V
TDP	45 W
Tjunction	0 °C – 100 °C
Tstorage	-25 °C – 125 °C

Core i7-820QM is a 64-bit x86 quad-core mobile performance microprocessor introduced by Intel late 2009. The processor has a base frequency of 1.73 GHz with a turbo frequency of 3.06 GHz and a TDP of 45 W. This MPU is based on the Clarksfield core (Nehalem microarchitecutre) and is manufactured on Intel's 45 nm process.

Cache

Main article: Nehalem § Cache

[Edit/Modify Cache Info]

Cache Organization Cache is a hardware component containing a relatively small and extremely fast memory designed to speed up the performance of a CPU by preparing ahead of time the data it needs to read from a relatively slower medium such as main memory. The organization and amount of cache can have a large impact on the performance, power consumption, die size, and consequently cost of the IC. Cache is specified by its size, number of sets, associativity, block size, sub-block size, and fetch and write-back policies. Note: All units are in kibibytes and mebibytes.

L1$ 256 KiB 262,144 B 0.25 MiB L1I$ 128 KiB 131,072 B 0.125 MiB 4x32 KiB 4-way set associative write-back L1D$ 128 KiB 131,072 B 0.125 MiB 4x32 KiB 8-way set associative write-back L2$ 1 MiB 1,024 KiB 1,048,576 B 9.765625e-4 GiB     4x256 KiB 8-way set associative write-back L3$ 8 MiB 8,192 KiB 8,388,608 B 0.00781 GiB     4x2 MiB 16-way set associative write-back

Memory controller

[Edit/Modify Memory Info]

	Integrated Memory Controller
	Max Type DDR3-1333 Supports ECC No Max Mem 8 GiB Controllers 1 Channels 2 Max Bandwidth 19.87 GiB/s 20,346.88 MiB/s 21.335 GB/s 21,335.25 MB/s 0.0194 TiB/s 0.0213 TB/s Bandwidth Single 9.93 GiB/s Double 19.87 GiB/s Physical Address (PAE) 36 bit

Expansions

[Edit/Modify Expansions Info]

	Expansion Options
	PCIe Revision 2.0 Max Lanes 16 Configs 1x16, 2x8

Features

[Edit/Modify Supported Features]

Supported x86 Extensions & Processor Features

MMX MMX Extension EMMX Extended MMX Extension SSE Streaming SIMD Extensions SSE2 Streaming SIMD Extensions 2 SSE3 Streaming SIMD Extensions 3 SSSE3 Supplemental SSE3 SSE4.1 Streaming SIMD Extensions 4.1 SSE4.2 Streaming SIMD Extensions 4.2 x86-16 16-bit x86 x86-32 32-bit x86 x86-64 64-bit x86 Real Real Mode Protected Protected Mode SMM System Management Mode FPU Integrated x87 FPU NX No-eXecute HT Hyper-Threading TBT 1.0 Turbo Boost Technology 1.0 EIST Enhanced SpeedStep Technology TXT Trusted Execution Technology (SMX) vPro Intel vPro VT-x VT-x (Virtualization) VT-d VT-d (I/O MMU virtualization) EPT Extended Page Tables (SLAT)