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Intel Atom Z500 vs Intel Atom Z540

Intel Atom Z500

► remove from comparison Intel Z500

The Intel Atom Z500 is a single core CPU for small MIDs, netbooks, internet devices. The performance is very low and therefore only some applications with low CPU demand may run fluently (e.g., email, simple word processing). The Z500 is specified with a TDP of only 0.65W but the US15W chipset needs 2.3W. 

The Atom Z500 supports HyperThreading to execute 2 Threads with the single processor core. However, 64 Bit instructions are not supported.

Furthermore, the Atom Z500 supports the following power saving features:

  • C1/AutoHalt state
  • C1/MWAIT state
  • Enhanced HALT state
  • Stop Grant state
  • Enhanced Stop Grant state
  • Sleep state Deep Sleep state
  • Deeper Sleep state
  • Enhanced Deeper Sleep state
  • C5 state Deep Power-down technology
  • Enhanced SpeedStep technology

Intel Atom Z540

► remove from comparison

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 Z500Intel Atom Z540
SeriesIntel AtomIntel Atom
CodenameSilverthorneSilverthorne
Series: Atom Silverthorne
Intel Atom Z560 compare2.13 GHz1 / 2 cores
Intel Atom Z550 compare2 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 « 0.8 GHz1 / 1 cores
Intel Atom Z560 compare2.13 GHz1 / 2 cores
Intel Atom Z550 compare2 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 Z5000.8 GHz1 / 1 cores
Clock800 MHz1830 MHz
FSB400533
L1 Cache56 KB
L2 Cache512 KB512 KB
Cores / Threads1 / 11 / 2
TDP0.65 Watt2 Watt
Transistors47 Million47 Million
45 nm, 0.8-1.1V45 nm, 0.75-1.1V
Die Size26 mm226 mm2
max. Temp.90 °C90 °C
SocketPBGA441PBGA441
FeatureseXBit, Hyper Threading, Enhanced Speedstep, SSE3MMX, SSE, SSE2, SSE3, SSSE3, HHT, VT-x, Idle States, Enhanced Speedstep, Demand Based Switching, Execute Disable Bit
Architecturex86x86
$45 U.S.
Announced
Manufacturerark.intel.comark.intel.com

Benchmarks

Cinebench R10 - Cinebench R10 Rend. Single (32bit)
100%
1 Z540 +
min: 563     avg: 568     median: 568 (3%)     max: 573 Points
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
100%
1 Z540 +
min: 622     avg: 778     median: 778 (1%)     max: 934 Points
wPrime 2.10 - wPrime 2.0 32m *
100%
Z500 +
115 s (23%)
103%
Z540 +
min: 105     avg: 105.4     median: 105.4 (21%)     max: 105.8 s
wPrime 2.10 - wPrime 2.0 1024m *
100%
1 Z540 +
3359 s (40%)
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%
1 Z540 +
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%
1 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%
1 Z540 +
1547 Points (3%)
Windows 7 Experience Index - Win7 CPU
100%
1 Z540 +
min: 1.9     avg: 2.3     median: 2.3 (29%)     max: 2.7 Points

Average Benchmarks Intel Atom Z500 → 100% n=1

Average Benchmarks Intel Atom Z540 → 103% n=1

- 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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Redaktion, 2017-09- 8 (Update: 2023-07- 1)