Core i7-620UE vs Core 2 Extreme X7900

Primary details

Comparing Core 2 Extreme X7900 and Core i7-620UE processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2724	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Core 2 Extreme	Intel Core i7
Power efficiency	1.50	no data
Architecture codename	Merom (2006−2008)	Arrandale (2010−2011)
Release date	1 September 2007 (17 years ago)	7 January 2010 (14 years ago)
Launch price (MSRP)	$851	$248

Detailed specifications

Core 2 Extreme X7900 and Core i7-620UE 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)	2 (Dual-core)
Threads	2	4
Base clock speed	2.8 GHz	1.07 GHz
Boost clock speed	2.8 GHz	2.13 GHz
Bus type	no data	DMI 1.0
Bus rate	800 MHz	1 × 2.5 GT/s
Multiplier	no data	8
L1 cache	128 KB	64 KB (per core)
L2 cache	4 MB	256 KB (per core)
L3 cache	0 KB	4 MB (shared)
Chip lithography	65 nm	32 nm
Die size	143 mm2	81 mm2
Maximum core temperature	100 °C	no data
Number of transistors	no data	382 million
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	1.1V-1.375V	no data

Compatibility

Information on Core 2 Extreme X7900 and Core i7-620UE 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	1 (Uniprocessor)
Socket	PPGA478	Intel BGA 1288
Power consumption (TDP)	44 Watt	18 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Extreme X7900 and Core i7-620UE. You'll probably need this information if you require some particular technology.

AES-NI	-	+
FMA	-	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
Idle States	-	no data
Demand Based Switching	-	no data
AMT	+	no data
FSB parity	-	no data

Security technologies

Core 2 Extreme X7900 and Core i7-620UE technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Extreme X7900 and Core i7-620UE are enumerated here.

VT-d	no data	+
VT-x	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Extreme X7900 and Core i7-620UE. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR1	DDR3-800
Maximum memory size	no data	8 GB
Max memory channels	no data	2
Maximum memory bandwidth	no data	12.799 GB/s
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

Intel HD Graphics (Ironlake)

Peripherals

Specifications and connection of peripherals supported by Core 2 Extreme X7900 and Core i7-620UE.

PCIe version	no data	2.0
PCI Express lanes	no data	16

Pros & cons summary

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Recency	1 September 2007	7 January 2010
Threads	2	4
Chip lithography	65 nm	32 nm
Power consumption (TDP)	44 Watt	18 Watt

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Should you still have questions on choice between Core 2 Extreme X7900 and Core i7-620UE, ask them in Comments section, and we shall answer.

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