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Intel Atom Z550 vs Intel Atom Z540

Intel Atom Z550

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The Intel Atom Z550 is a power saving netbook / MID single-core processor. Compared to the Atom N-series, the Z-series supports Virtualization in hardware and got the Idle States and Demand Based Switching functions. Therefore, the Z-Series also has a lower TDP rating.

The Atom core was designed for a low power consumption and cheap production. The downside is the relative low performance per Watt (due to the in-order execution) compared to similar clocked Celeron processors, e.g.. Still the integrated Hyper-Threading (the operating system sees the CPU as a dual core CPU) decreases the penalty of the in-order execution a bit.

Intel Atom Z540

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The Intel Atom Z540 is a power saving netbook / MID single-core processor. Compared to the Atom N270, the Z540 supports Virtualization in hardware and got the Idle States and Demand Based Switching power saving functions. Futhermore, the Z540 is higher clocked but in contrary specified at a lower TDP rating.

The Atom core was designed for a low power consumption and cheap production. The downside is the relative low performance per Watt (due to the in-order execution) compared to similar clocked Celeron processors, e.g.. Still the integrated Hyper-Threading (the operating system sees the CPU as a dual core CPU) decreases the penalty of the in-order execution a bit.

The performance of the Z540 is only compareable to a 1.3 GHz clocked Celeron M and therfore only sufficient for non demanding applications like Office or web surfing. HD videos, advanced photo editing, video cutting may not run fluently. 

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ModelIntel Atom Z550Intel Atom Z540
SeriesIntel AtomIntel Atom
CodenameSilverthorneSilverthorne
Series: Atom Silverthorne
Intel Atom Z560 compare2.13 GHz1 / 2 cores
Intel Atom Z550 « 2 GHz1 / 2 cores
Intel Atom Z5401.83 GHz1 / 2 cores
Intel Atom 230 compare1.6 GHz1 / 2 cores
Intel Atom Z530 compare1.6 GHz1 / 2 cores
Intel Atom Z520 compare1.33 GHz1 / 2 cores
Intel Atom Z510 compare1.1 GHz1 / 1 cores
Intel Atom Z500 compare0.8 GHz1 / 1 cores
Intel Atom Z560 compare2.13 GHz1 / 2 cores
Intel Atom Z5502 GHz1 / 2 cores
Intel Atom Z540 « 1.83 GHz1 / 2 cores
Intel Atom 230 compare1.6 GHz1 / 2 cores
Intel Atom Z530 compare1.6 GHz1 / 2 cores
Intel Atom Z520 compare1.33 GHz1 / 2 cores
Intel Atom Z510 compare1.1 GHz1 / 1 cores
Intel Atom Z500 compare0.8 GHz1 / 1 cores
Clock2000 MHz1830 MHz
FSB533533
L2 Cache512 KB512 KB
Cores / Threads1 / 21 / 2
TDP2.4 Watt2 Watt
Transistors47 Million47 Million
45 nm45 nm, 0.75-1.1V
Die Size26 mm226 mm2
SocketPBGA441PBGA441
FeaturesMMX, SSE, SSE2, SSE3, SSSE3, HHT, HyperthreadingMMX, SSE, SSE2, SSE3, SSSE3, HHT, VT-x, Idle States, Enhanced Speedstep, Demand Based Switching, Execute Disable Bit
Architecturex86x86
Announced
Manufacturerark.intel.comark.intel.com
max. Temp.90 °C

Benchmarks

Cinebench R10 - Cinebench R10 Rend. Single (32bit)
100%
Z550 +
657 Points (4%)
min: 563     avg: 568     median: 568 (3%)     max: 573 Points
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
100%
Z550 +
980 Points (1%)
min: 622     avg: 778     median: 778 (1%)     max: 934 Points
wPrime 2.10 - wPrime 2.0 1024m *
100%
Z550 +
3625 s (43%)
106%
Z540 +
3359 s (40%)
wPrime 2.10 - wPrime 2.0 32m *
100%
Z550 +
101.5 s (20%)
min: 105     avg: 105.4     median: 105.4 (21%)     max: 105.8 s
3DMark 06 - CPU - 3DMark 06 - CPU
100%
1 Z540 +
369 Points (1%)
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
100%
Z550 +
82 s (18%)
min: 85.3     avg: 85.7     median: 85.7 (18%)     max: 86 s
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
100%
Z550 +
182 s (8%)
100%
Z540 +
min: 185     avg: 186.6     median: 186.6 (8%)     max: 188.1 s
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
100%
1 Z540 +
4192 s (19%)
SiSoft Sandra Dhrystone (MIPS) - SiSoft Sandra Dhrystone (MIPS)
100%
1 Z540 +
min: 4600     avg: 4650     median: 4650 (2%)     max: 4700 MIPS
SiSoft Sandra Whetstone (MFLOPS) - SiSoft Sandra Whetstone (MFLOPS)
100%
1 Z540 +
min: 3936     avg: 3968     median: 3968 (3%)     max: 4000 MFLOPS
PCMark 05 - PCMark 05 - Standard
100%
Z550 +
1506 Points (3%)
103%
Z540 +
1547 Points (3%)
Windows Vista Experience Index - Windows Vista Leistungsindex - Prozessor
100%
1 Z550 +
2.7 Points (39%)
Windows 7 Experience Index - Win7 CPU
100%
Z550 +
2.7 Points (35%)
min: 1.9     avg: 2.3     median: 2.3 (29%)     max: 2.7 Points

Average Benchmarks Intel Atom Z550 → 100% n=8

Average Benchmarks Intel Atom Z540 → 95% n=8

- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation

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show all (including archived), 2024, 2023
v1.28
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Redaktion, 2017-09- 8 (Update: 2023-07- 1)