i7-975 Extreme Edition vs i5-520M

Primary details

Comparing Core i5-520M and Core i7-975 Extreme Edition processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2405	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Desktop processor
Series	Intel Core i5	Intel Core i7EE
Power efficiency	2.93	no data
Architecture codename	Arrandale (2010−2011)	Nehalem (2008−2010)
Release date	7 January 2010 (14 years ago)	2 June 2009 (15 years ago)
Launch price (MSRP)	$225	no data

Detailed specifications

Core i5-520M and Core i7-975 Extreme Edition basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	2 (Dual-core)	4 (Quad-Core)
Threads	4	8
Base clock speed	2.4 GHz	no data
Boost clock speed	2.93 GHz	3.33 GHz
Bus type	DMI 1.0	QPI
Bus rate	1 × 2.5 GT/s	6.4 GT/s
Multiplier	18	25
L1 cache	128 KB	no data
L2 cache	512 KB	1 MB
L3 cache	3 MB	8 MB
Chip lithography	32 nm	45 nm
Die size	81+114 mm2	263 mm2
Maximum core temperature	105 °C	no data
Number of transistors	382+177 Million	731 Million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Core i5-520M and Core i7-975 Extreme Edition compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	1 (Uniprocessor)	1 (Uniprocessor)
Socket	BGA1288,PGA988	no data
Power consumption (TDP)	35 Watt	130 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i5-520M and Core i7-975 Extreme Edition. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	no data
AES-NI	+	-
FMA	+	-
vPro	+	no data
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	+	no data
Hyper-Threading Technology	+	no data
Idle States	+	no data
Thermal Monitoring	+	-
Flex Memory Access	+	no data
PAE	36 Bit	no data
FDI	+	no data
Fast Memory Access	+	no data

Security technologies

Core i5-520M and Core i7-975 Extreme Edition technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	no data
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i5-520M and Core i7-975 Extreme Edition are enumerated here.

VT-d	+	no data
VT-x	+	no data
EPT	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i5-520M and Core i7-975 Extreme Edition. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3-800, DDR3-1066	no data
Maximum memory size	8.3 GB	24 GB
Max memory channels	2	no data
Maximum memory bandwidth	17.051 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® HD Graphics for Previous Generation Intel® Processors	no data
Clear Video	+	no data
Clear Video HD	+	no data
Graphics max frequency	766 MHz	no data

Graphics interfaces

Available interfaces and connections of Core i5-520M and Core i7-975 Extreme Edition integrated GPUs.

Number of displays supported

2

no data

Peripherals

Specifications and connection of peripherals supported by Core i5-520M and Core i7-975 Extreme Edition.

PCIe version	2.0	no data
PCI Express lanes	16	no data

Pros & cons summary

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Recency	7 January 2010	2 June 2009
Physical cores	2	4
Threads	4	8
Chip lithography	32 nm	45 nm
Power consumption (TDP)	35 Watt	130 Watt

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