Pentium E6500K vs i7-840QM

Primary details

Comparing Core i7-840QM and Pentium E6500K processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2308	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Desktop processor
Series	Intel Core i7	no data
Power efficiency	2.58	no data
Architecture codename	Clarksfield (2009−2010)	Wolfdale (2008−2010)
Release date	22 June 2010 (14 years ago)	9 August 2009 (15 years ago)
Launch price (MSRP)	$568	no data

Detailed specifications

Core i7-840QM and Pentium E6500K 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)	2 (Dual-core)
Threads	8	2
Base clock speed	1.86 GHz	2.93 GHz
Boost clock speed	3.2 GHz	0.93 GHz
Bus type	DMI 1.0	no data
Bus rate	2.5 GT/s	no data
Multiplier	14	no data
L1 cache	256 KB	64 KB (per core)
L2 cache	1 MB	2 MB (shared)
L3 cache	8 MB (shared)	0 KB
Chip lithography	45 nm	45 nm
Die size	296 mm2	82 mm2
Maximum core temperature	100 °C	74 °C
Number of transistors	774 million	228 million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	-	+
VID voltage range	no data	0.85V – 1.3625V

Compatibility

Information on Core i7-840QM and Pentium E6500K 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	LGA775
Power consumption (TDP)	45 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-840QM and Pentium E6500K. 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)	+	+
Turbo Boost Technology	+	-
Hyper-Threading Technology	+	-
Idle States	+	+
Thermal Monitoring	+	+
Demand Based Switching	no data	-
PAE	36 Bit	no data

Security technologies

Core i7-840QM and Pentium E6500K technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	-
EDB	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-840QM and Pentium E6500K are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-840QM and Pentium E6500K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR1, DDR2, 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 Pentium E6500K.

PCIe version	2	2.0
PCI Express lanes	16	no data

Pros & cons summary

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Recency	22 June 2010	9 August 2009
Physical cores	4	2
Threads	8	2
Power consumption (TDP)	45 Watt	65 Watt

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Should you still have questions on choice between Core i7-840QM and Pentium E6500K, ask them in Comments section, and we shall answer.

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