Atom E660 vs Z-01

Place in the ranking	3240	3274
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Power efficiency	2.98	5.33
Architecture codename	Desna (2011)	Tunnel Creek (2010)
Release date	1 June 2011 (13 years ago)	14 September 2010 (14 years ago)
Launch price (MSRP)	no data	$54

Detailed specifications

Z-01 and Atom E660 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	2	2
Boost clock speed	1 GHz	1.3 GHz
L1 cache	128 KB	64 KB (per core)
L2 cache	1 MB	512 KB (per core)
L3 cache	0 KB	0 KB
Chip lithography	40 nm	45 nm
Die size	75 mm²	26 mm²
Number of transistors	no data	47 million
64 bit support	+	-
Windows 11 compatibility	-	-

Compatibility

Information on Z-01 and Atom E660 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	FT1	Intel BGA 676
Power consumption (TDP)	6 Watt	3 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Z-01 and Atom E660. You'll probably need this information if you require some particular technology.

Instruction set extensions	MMX(+), SSE(1,2,3,3S,4A, AMD-V	no data
Enhanced SpeedStep (EIST)	no data	+
Hyper-Threading Technology	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Z-01 and Atom E660 are enumerated here.

AMD-V

Memory specs

Types, maximum amount and channel quantity of RAM supported by Z-01 and Atom E660. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR3 Single-channel

DDR2

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card
Compare

AMD Radeon HD 6250

Intel GMA 600

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

Z-01 0.19
+11.8%

Atom E660 0.17

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

Z-01 305
+12.5%

Atom E660 271

Gaming performance

Pros & cons summary

Performance score	0.19	0.17
Recency	1 June 2011	14 September 2010
Physical cores	2	1
Chip lithography	40 nm	45 nm
Power consumption (TDP)	6 Watt	3 Watt

Z-01 has a 11.8% higher aggregate performance score, an age advantage of 8 months, 100% more physical cores, and a 12.5% more advanced lithography process.

Atom E660, on the other hand, has 100% lower power consumption.

The Z-01 is our recommended choice as it beats the Atom E660 in performance tests.

Should you still have questions on choice between Z-01 and Atom E660, ask them in Comments section, and we shall answer.