Sherwyn Sarabi, from Barnsley, South Yorkshire, stunned psychologists after scoring an incredible 160 on the Wechsler scale, the highest possible mark on the IQ test.
Sherwyn matched the intelligence quotient of Einstein, Bill Gates and Stephen Hawking, the 'Daily Express' reported.
Although, Einstein never took an IQ test as none of the modern intelligence tests existed during the course of his life, experts believe he had an IQ of around 160.
Sherwyn is already a member of Mensa after starting school two years early and becoming a member of the genius club at the age of three.
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"Sherwyn has a very superior level of intelligence, he is incredibly gifted and his vocabulary is out of this world," educational psychologist, Dr Peter Congdon said.
"His intellect reaches the highest possible levels of reason and when he talks to you he has the social skills of a much older child," Congdon said.
While most four-year-olds have not yet started school, Sherwyn is already studying work for eight and nine-year-olds at Rastrick Independent School, Huddersfield.
"His mental age is measured at 8 years and 9 months, more than twice his actual age, said Congdon.
She said Sherwyn has read over 190 books and his favourite is the encyclopedia as he loves learning new things.
The Wechsler Intelligence Scale for Children (WISC), developed by American psychologist David Wechsler, is an individually administered intelligence test that can be completed without reading or writing.