Atom Z500 vs Core 2 Duo E7400

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Aggregate performance score

Core 2 Duo E7400
2008
2 cores / 2 threads, 65 Watt
0.66
+313%

Core 2 Duo E7400 outperforms Atom Z500 by a whopping 313% based on our aggregate benchmark results.

Primary details

Comparing Core 2 Duo E7400 and Atom Z500 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking27603299
Place by popularitynot in top-100not in top-100
Market segmentDesktop processorLaptop
Seriesno dataIntel Atom
Power efficiency0.9623.28
Architecture codenameWolfdale (2008−2010)Silverthorne (2008−2010)
Release dateOctober 2008 (16 years ago)2 April 2008 (16 years ago)
Launch price (MSRP)no data$45

Detailed specifications

Core 2 Duo E7400 and Atom Z500 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 cores2 (Dual-core)1 (Single-Core)
Threads21
Base clock speed2.8 GHzno data
Boost clock speed2.8 GHz0.8 GHz
Bus typeno dataFSB
Bus rate1066 MHz400 MT/s
Multiplierno data8
L1 cache64 KB56 KB
L2 cache3 MB (shared)512 KB
L3 cache0 KB0 KB
Chip lithography45 nm45 nm
Die size82 mm224.18 mm2
Maximum core temperatureno data90 °C
Maximum case temperature (TCase)74 °Cno data
Number of transistors228 million47 Million
64 bit support+-
Windows 11 compatibility--
VID voltage range0.85V-1.3625V0.80 -1.1V

Compatibility

Information on Core 2 Duo E7400 and Atom Z500 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 configuration11 (Uniprocessor)
SocketLGA775PBGA441
Power consumption (TDP)65 Watt0.65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo E7400 and Atom Z500. 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++
Thermal Monitoring++
Demand Based Switching-+
FSB parity--

Security technologies

Core 2 Duo E7400 and Atom Z500 technologies aimed at improving security, for example, by protecting against hacks.

TXT--
EDB++

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Duo E7400 and Atom Z500 are enumerated here.

VT-dno data-
VT-xno data-

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Duo E7400 and Atom Z500. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR1, DDR2, DDR3no data

Gaming performance

Pros & cons summary


Performance score 0.66 0.16
Physical cores 2 1
Threads 2 1

Core 2 Duo E7400 has a 312.5% higher aggregate performance score, and 100% more physical cores and 100% more threads.

The Core 2 Duo E7400 is our recommended choice as it beats the Atom Z500 in performance tests.

Note that Core 2 Duo E7400 is a desktop processor while Atom Z500 is a notebook one.


Should you still have questions on choice between Core 2 Duo E7400 and Atom Z500, ask them in Comments section, and we shall answer.

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Intel Core 2 Duo E7400
Core 2 Duo E7400
Intel Atom Z500
Atom Z500

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Community ratings

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


3.4 339 votes

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1.8 29 votes

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Questions & comments

Here you can ask a question about Core 2 Duo E7400 or Atom Z500, agree or disagree with our judgements, or report an error or mismatch.