Atom S1240 vs i7-875K

Primary details

Comparing Core i7-875K and Atom S1240 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1940	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.07	no data
Market segment	Desktop processor	Server
Power efficiency	1.95	no data
Architecture codename	Lynnfield (2009−2010)	Centerton (2012)
Release date	30 May 2010 (14 years ago)	11 December 2012 (11 years ago)
Launch price (MSRP)	$486	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i7-875K 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	2.93 GHz	1.6 GHz
Boost clock speed	3.6 GHz	1.6 GHz
Bus rate	2.5 GT/s	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	73 °C	no data
Number of transistors	774 million	no data
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	+	-

Compatibility

Information on Core i7-875K 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	FCLGA1156,LGA1156	FCBGA1283
Power consumption (TDP)	95 Watt	6.1 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-875K and Atom S1240. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2	no data
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	1.0	no data
Hyper-Threading Technology	+	+
Idle States	+	no data
Demand Based Switching	-	no data
PAE	36 Bit	no data

Security technologies

Core i7-875K 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 i7-875K 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 i7-875K and Atom S1240. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3
Maximum memory size	16 GB	8 GB
Max memory channels	2	1
Maximum memory bandwidth	21 GB/s	10.6 GB/s
ECC memory support	-	+

Peripherals

Specifications and connection of peripherals supported by Core i7-875K and Atom S1240.

PCIe version	2.0	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	30 May 2010	11 December 2012
Physical cores	4	2
Threads	8	4
Chip lithography	45 nm	32 nm
Power consumption (TDP)	95 Watt	6 Watt

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Should you still have questions on choice between Core i7-875K and Atom S1240, ask them in Comments section, and we shall answer.

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