Phenom II X4 920 vs i7-840QM

Primary details

Comparing Core i7-840QM and Phenom II X4 920 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2285	2207
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	4.49
Market segment	Laptop	Desktop processor
Series	Intel Core i7	no data
Power efficiency	2.57	1.03
Architecture codename	Clarksfield (2009−2010)	Deneb (2009−2011)
Release date	20 June 2010 (14 years ago)	8 January 2009 (15 years ago)
Launch price (MSRP)	$568	$90

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i7-840QM and Phenom II X4 920 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	4 (Quad-Core)	4 (Quad-Core)
Threads	8	4
Base clock speed	1.86 GHz	2.8 GHz
Boost clock speed	3.2 GHz	2.8 GHz
Bus type	DMI 1.0	no data
Bus rate	2.5 GT/s	no data
Multiplier	14	no data
L1 cache	64 KB (per core)	128 KB (per core)
L2 cache	256 KB (per core)	512 KB (per core)
L3 cache	8 MB (shared)	6 MB (shared)
Chip lithography	45 nm	45 nm
Die size	296 mm2	258 mm2
Maximum core temperature	100 °C	no data
Number of transistors	774 million	758 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Core i7-840QM and Phenom II X4 920 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
Socket	FCPGA988,PGA988	AM3
Power consumption (TDP)	45 Watt	125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-840QM and Phenom II X4 920. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2	no data
vPro	+	no data
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	+	no data
Hyper-Threading Technology	+	no data
Idle States	+	no data
Thermal Monitoring	+	-
PAE	36 Bit	no data
Status	Discontinued	no data

Security technologies

Core i7-840QM and Phenom II X4 920 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 i7-840QM and Phenom II X4 920 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-840QM and Phenom II X4 920. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3
Maximum memory size	8 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	21.335 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

None

On certain motherboards (Chipset feature)

Peripherals

Specifications and connection of peripherals supported by Core i7-840QM and Phenom II X4 920.

PCIe version	2	2.0
PCI Express lanes	16	no data

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

Pros & cons summary

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Performance score	1.27	1.41
Recency	20 June 2010	8 January 2009
Threads	8	4
Power consumption (TDP)	45 Watt	125 Watt

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Should you still have questions on choice between Core i7-840QM and Phenom II X4 920, ask them in Comments section, and we shall answer.

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