i7-660UM vs Atom Z500

Primary details

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

Place in the ranking	3625	2943
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	0.02
Market segment	Laptop	Laptop
Series	Intel Atom	Intel Core i7
Power efficiency	9.09	1.71
Designer	Intel	Intel
Manufacturer	no data	Intel
Architecture codename	Silverthorne (2008−2010)	Arrandale (2010−2011)
Release date	2 April 2008 (18 years ago)	24 May 2010 (15 years ago)
Launch price (MSRP)	$45	$317

Cost-effectiveness evaluation

Performance per price, higher is better.

Performance to price scatter graph

Detailed specifications

Basic parameters of Atom Z500 and Core i7-660UM: 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	1 (Single-Core)	2 (Dual-core)
Threads	1	4
Base clock speed	no data	1.33 GHz
Boost clock speed	0.8 GHz	2.4 GHz
Bus type	FSB	DMI 1.0
Bus rate	400 MT/s	1 × 2.5 GT/s
Multiplier	8	10
L1 cache	56 KB	64 KB (per core)
L2 cache	512 KB	256 KB (per core)
L3 cache	0 KB	4 MB (shared)
Chip lithography	45 nm	32 nm
Die size	24.18 mm2	81+144 mm2
Maximum core temperature	90 °C	105 °C
Number of transistors	47 Million	382+177 Million
64 bit support	-	+
Windows 11 compatibility	-	-
VID voltage range	0.80 -1.1V	no data

Compatibility

Information on Atom Z500 and Core i7-660UM 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 (Uniprocessor)
Socket	PBGA441	BGA1288
Power consumption (TDP)	0.65 Watt	18 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Atom Z500 and Core i7-660UM. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE2, Intel® SSE3, Intel® SSSE3	Intel® SSE4.1, Intel® SSE4.2
AES-NI	-	+
FMA	-	+
vPro	no data	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	+
Hyper-Threading Technology	+	+
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	no data	+
Demand Based Switching	+	no data
PAE	no data	36 Bit
FDI	no data	+
Fast Memory Access	no data	+
FSB parity	-	no data

Security technologies

Atom Z500 and Core i7-660UM technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	+
EDB	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Atom Z500 and Core i7-660UM are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Atom Z500 and Core i7-660UM. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	no data	DDR3-800
Maximum memory size	no data	8 GB
Max memory channels	no data	2
Maximum memory bandwidth	no data	12.799 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	-	Intel HD Graphics for Previous Generation Intel Processors
Clear Video	-	+
Clear Video HD	-	+
Graphics max frequency	-	500 MHz

Graphics interfaces

Available interfaces and connections of Atom Z500 and Core i7-660UM integrated GPUs.

Number of displays supported

-

2

Peripherals

Specifications and connection of peripherals supported by Atom Z500 and Core i7-660UM.

PCIe version	no data	2.0
PCI Express lanes	no data	16

Pros & cons summary

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Performance score	0.14	0.73
Recency	2 April 2008	24 May 2010
Physical cores	1	2
Threads	1	4
Chip lithography	45 nm	32 nm