Atom E645C vs i7-980

Primary details

Comparing Core i7-980 and Atom E645C processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1356	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.22	no data
Market segment	Desktop processor	Laptop
Power efficiency	3.18	no data
Architecture codename	Gulftown (2010−2011)	Stellarton (2010)
Release date	26 June 2011 (13 years ago)	22 November 2010 (14 years ago)
Launch price (MSRP)	$1,109	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i7-980 and Atom E645C 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	6 (Hexa-Core)	1 (Single-Core)
Threads	12	2
Base clock speed	3.33 GHz	no data
Boost clock speed	3.6 GHz	1 GHz
Bus rate	4.8 GT/s	no data
L1 cache	64 KB (per core)	64 KB (per core)
L2 cache	256 KB (per core)	512 KB (per core)
L3 cache	12 MB (shared)	0 KB
Chip lithography	32 nm	45 nm
Die size	239 mm2	26 mm2
Maximum core temperature	69 °C	no data
Number of transistors	1,170 million	47 million
64 bit support	+	-
Windows 11 compatibility	-	-

Compatibility

Information on Core i7-980 and Atom E645C 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	FCLGA1366,LGA1366	Intel BGA1466
Power consumption (TDP)	130 Watt	4 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-980 and Atom E645C. You'll probably need this information if you require some particular technology.

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

Security technologies

Core i7-980 and Atom E645C 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 i7-980 and Atom E645C are enumerated here.

VT-x	+	no data
EPT	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-980 and Atom E645C. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR2
Maximum memory size	24 GB	no data
Max memory channels	3	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

Intel GMA 600

Peripherals

Specifications and connection of peripherals supported by Core i7-980 and Atom E645C.

PCIe version

2.0

no data

Pros & cons summary

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Recency	26 June 2011	22 November 2010
Physical cores	6	1
Threads	12	2
Chip lithography	32 nm	45 nm
Power consumption (TDP)	130 Watt	4 Watt

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