Industry-Standard Benchmarks for Embedded Systems
EEMBC, an industry alliance, develops benchmarks to help system designers select the optimal processors and understand the performance and energy characteristics of their systems. EEMBC has benchmark suites targeting cloud and big data, mobile devices (for phones and tablets), networking, ultra-low power microcontrollers, the Internet of Things (IoT), digital media, automotive, and other application areas. EEMBC also has benchmarks for general-purpose performance analysis including CoreMark, MultiBench (multicore), and FPMark (floating-point).
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CoreMark  Benchmark Scores

 Intel 80486DX2 
Type of Platform Hardware/Production Silicon 
Processor Information 
Processor Name80486DX2
Processor Operating Frequency66
Number of Processor Cores1
Memory configurationFPM 33MHz; CAS = 5; Heap
Link to Processor Data Sheet (PDF)http://datasheet.octopart.com/80486DX2-66-Intel-datasheet-7086155.pdf
Software Environment 
Compiler name and versionMicrosoft C/C++ 10.20
Compile Flags-O2 -Ox -G4
Operating System Name and VersionMicrosoft Windows NT 3.51
Parallel Execution-
Benchmark Scores
CoreMark/MHz 1.02 
CoreMark 67.18 
CoreMark/Core 67.18 

Uncertified Data & Result