Free PDF: The Genius Workout — 50 brain teasers + the 25 highest IQs in history.
Head-to-Head Comparison

Gregor Mendel vs Henri Poincaré

Gregor Mendel (IQ 165) vs Henri Poincaré (IQ 190). Side-by-side comparison of intellect, achievements, era and cultural impact.

Gregor Mendel
1822–1884 · CZ
165
Estimated IQ
Read full biography →
Henri Poincaré
1854–1912 · FR
190
Estimated IQ
Read full biography →
Born18221854
Died18841912
CountryCZFR
Estimated IQ 165 190
Best known forCreating the science of geneticsPoincaré conjecture

Who had the higher IQ?

By the most cited estimates, Henri Poincaré tops this matchup with an estimated IQ of 190, a 25-point margin over Gregor Mendel (165). IQ estimates for historical figures are reconstructions, not test results — they sit on top of biographical evidence, productivity, and the difficulty of the problems each person solved. Treat the number as a directional signal, not a verdict.

Achievements compared

Gregor Mendel is best known for: Creating the science of genetics Henri Poincaré is best known for: Poincaré conjecture

Recognition. Gregor Mendel: —. Henri Poincaré: RAS Gold Medal (1900) • Sylvester Medal (1901) • Matteucci Medal (1905) • Bolyai Prize (1905) • Bruce Medal (1911).

Different eras, different boards

The two were born roughly 32 years apart (1822 vs 1854), which matters: scientific tools, available knowledge, and intellectual culture compound. Comparing minds across eras is comparing players on different boards.

The verdict

So who was greater? The honest answer: they're not strictly comparable. By raw IQ proxy, Henri Poincaré edges out. By measurable, lasting influence in their respective field, both are anchors of the human record. If you have to pick one to bet civilization on, pick the one working on the problem you care about.

Frequently Asked

Who had the higher IQ, Gregor Mendel or Henri Poincaré?
Estimated IQs are 165 for Gregor Mendel and 190 for Henri Poincaré. Henri Poincaré rates higher by 25 points. Historical IQ figures are reconstructions, not measured scores.
What is Gregor Mendel most famous for?
Creating the science of genetics
What is Henri Poincaré most famous for?
Poincaré conjecture
Did Gregor Mendel and Henri Poincaré ever meet?
They were contemporaries, though there is no documented direct meeting in our sources.

Related Comparisons

Explore more genius comparisons

See the IQ Rankings →
ENEspañolFrançaisDeutschPortuguês日本語Italiano中文한국어العربيةहिन्दीРусскийTürkçe

Play & come back tomorrow

🔥 Daily Genius Challenge · Number pattern
What comes next? 1, 2, 6, 24, 120, ?
🧠 Which Genius Are You?📊 Free IQ Test
Which genius shares your birthday? Get one extraordinary mind in your inbox every week.
or create a free account →