Atom Z560 vs i5-661

Primary details

Comparing processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2335	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.11	no data
Market segment	Desktop processor	Laptop
Series	no data	Intel Atom
Power efficiency	0.68	no data
Designer	Intel	Intel
Manufacturer	Intel	Intel
Architecture codename	Clarkdale (2010−2011)	Silverthorne (2008−2010)
Release date	7 January 2010 (15 years ago)	1 June 2010 (15 years ago)
Launch price (MSRP)	$252	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Performance to price scatter graph

Detailed specifications

Core i5-661 and Atom Z560 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	2 (Dual-core)	1 (Single-Core)
Threads	4	2
Base clock speed	3.33 GHz	2.13 GHz
Boost clock speed	3.6 GHz	0.03 GHz
Bus type	no data	FSB
Bus rate	2.5 GT/s	533.33 MT/s
Multiplier	no data	16
L1 cache	64 KB (per core)	56 KB
L2 cache	256 KB (per core)	512K (per core)
L3 cache	4 MB (shared)	0 KB
Chip lithography	32 nm	45 nm
Die size	81 mm2	24.18 mm2
Maximum core temperature	70 °C	90 °C
Number of transistors	382 million	47 million
64 bit support	+	-
Windows 11 compatibility	-	-
VID voltage range	no data	0.75V-1.1V

Compatibility

Information on Core i5-661 and Atom Z560 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 (Uniprocessor)
Socket	FCLGA1156	PBGA441
Power consumption (TDP)	87 Watt	2.5 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i5-661 and Atom Z560. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2	Intel® SSE2, Intel® SSE3, Intel® SSSE3
AES-NI	+	-
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	1.0	-
Hyper-Threading Technology	+	+
Idle States	+	+
Thermal Monitoring	-	+
Demand Based Switching	-	+
PAE	36 Bit	no data
FDI	+	no data
FSB parity	no data	-

Security technologies

Core i5-661 and Atom Z560 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	-
EDB	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i5-661 and Atom Z560 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i5-661 and Atom Z560. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	unknown
Maximum memory size	16.38 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	21 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel HD Graphics for Previous Generation Intel Processors	-
Clear Video HD	+	-

Graphics interfaces

Available interfaces and connections of Core i5-661 and Atom Z560 integrated GPUs.

Number of displays supported

2

-

Peripherals

Specifications and connection of peripherals supported by Core i5-661 and Atom Z560.

PCIe version	2.0	no data
PCI Express lanes	16	no data

Pros & cons summary

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Recency	7 January 2010	1 June 2010
Physical cores	2	1
Threads	4	2
Chip lithography	32 nm	45 nm
Power consumption (TDP)	87 Watt	2 Watt

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