Atom N455 vs Z550

VS

Aggregate performance score

Atom Z550
2009
1 core / 2 threads, 2 Watt
0.24
+100%
Atom N455
2010
1 core / 2 threads, 6 Watt
0.12

Atom Z550 outperforms Atom N455 by a whopping 100% based on our aggregate benchmark results.

Primary details

Comparing Atom Z550 and Atom N455 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking31773352
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
SeriesIntel AtomIntel Atom
Power efficiency9.461.62
Architecture codenameSilverthorne (2008−2010)Pinetrail (2009−2011)
Release date8 April 2009 (15 years ago)1 June 2010 (14 years ago)
Launch price (MSRP)no data$64

Detailed specifications

Atom Z550 and Atom N455 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 cores1 (Single-Core)1 (Single-Core)
Threads22
Base clock speed2 GHz1.66 GHz
Boost clock speed2 GHz1.67 GHz
Bus typeFSBno data
Bus rate533.33 MT/s533 MHz
Multiplier15no data
L1 cache56 KB (per core)64 KB (per core)
L2 cache512 KB (per core)512K (per core)
L3 cache0 KB0 KB
Chip lithography45 nm45 nm
Die size26 mm266 mm2
Maximum core temperature90 °C100 °C
Number of transistors47 million123 million
64 bit support-+
Windows 11 compatibility--

Compatibility

Information on Atom Z550 and Atom N455 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 configuration1 (Uniprocessor)1
SocketPBGA441FCBGA559
Power consumption (TDP)2.4 Watt6.5 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Atom Z550 and Atom N455. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataIntel® SSE2, Intel® SSE3, Intel® SSSE3
Enhanced SpeedStep (EIST)++
Turbo Boost Technology--
Hyper-Threading Technology++
Idle States+no data
Thermal Monitoring++
Demand Based Switching+-
FSB parity-no data

Security technologies

Atom Z550 and Atom N455 technologies aimed at improving security, for example, by protecting against hacks.

TXT--
EDB++

Virtualization technologies

Virtual machine speed-up technologies supported by Atom Z550 and Atom N455 are enumerated here.

VT-d--
VT-x+-

Memory specs

Types, maximum amount and channel quantity of RAM supported by Atom Z550 and Atom N455. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesunknownDDR3
Maximum memory sizeno data2 GB
Max memory channelsno data1

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardOn certain motherboards (Chipset feature)Intel GMA 3150

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.

Atom Z550 0.24
+100%
Atom N455 0.12

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.

Atom Z550 381
+94.4%
Atom N455 196

Cinebench 10 32-bit single-core

Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.

Atom Z550 657
+16.5%
Atom N455 564

Cinebench 10 32-bit multi-core

Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.

Atom Z550 980
+13.6%
Atom N455 863

wPrime 32

wPrime 32M is a math multi-thread processor test, which calculates square roots of first 32 million integer numbers. Its result is measured in seconds, so that the less is benchmark result, the faster the processor.

Atom Z550 101.5
+17.7%
Atom N455 119.5

Gaming performance

Pros & cons summary


Performance score 0.24 0.12
Recency 8 April 2009 1 June 2010
Power consumption (TDP) 2 Watt 6 Watt

Atom Z550 has a 100% higher aggregate performance score, and 200% lower power consumption.

Atom N455, on the other hand, has an age advantage of 1 year.

The Atom Z550 is our recommended choice as it beats the Atom N455 in performance tests.


Should you still have questions on choice between Atom Z550 and Atom N455, ask them in Comments section, and we shall answer.

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Intel Atom Z550
Atom Z550
Intel Atom N455
Atom N455

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Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


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2.8 244 votes

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Questions & comments

Here you can ask a question about Atom Z550 or Atom N455, agree or disagree with our judgements, or report an error or mismatch.