Atom S1240 vs Core i7-840QM

Primary details

Comparing Core i7-840QM and Atom S1240 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	2210	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Server
Series	Intel Core i7	no data
Architecture codename	Clarksfield (2009−2010)	Centerton (2012)
Release date	20 June 2010 (14 years ago)	11 December 2012 (11 years ago)
Launch price (MSRP)	$568	no data
Current price	$191 (0.3x MSRP)	no data

Detailed specifications

Core i7-840QM and Atom S1240 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	4
Base clock speed	1.86 GHz	1.6 GHz
Boost clock speed	3.2 GHz	1.6 GHz
Bus support	2500 MHz	no data
L1 cache	64 KB (per core)	56 KB (per core)
L2 cache	256 KB (per core)	512 KB (per core)
L3 cache	8 MB (shared)	0 KB
Chip lithography	45 nm	32 nm
Die size	296 mm2	no data
Maximum core temperature	100 °C	no data
Number of transistors	774 million	no data
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	No	No

Compatibility

Information on Core i7-840QM and Atom S1240 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
Socket	FCPGA988,PGA988	FCBGA1283
Power consumption (TDP)	45 Watt	6.1 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-840QM and Atom S1240. You'll probably need this information if you require some particular technology.

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

Security technologies

Core i7-840QM and Atom S1240 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 Atom S1240 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-840QM and Atom S1240. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3
Maximum memory size	8 GB	8 GB
Max memory channels	2	1
Maximum memory bandwidth	21 GB/s	10.6 GB/s
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

None

no data

Peripherals

Specifications and connection of peripherals supported by Core i7-840QM and Atom S1240.

PCIe version	2	2.0
PCI Express lanes	16	8
PCI support	no data	PCI Support
UART	no data	UART

Pros & cons summary

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Recency	20 June 2010	11 December 2012
Physical cores	4	2
Threads	8	4
Chip lithography	45 nm	32 nm
Power consumption (TDP)	45 Watt	6 Watt

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Should you still have questions on choice between Core i7-840QM and Atom S1240, ask them in Comments section, and we shall answer.

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