| Time | Implementation | Compiler | Benchmark date | SUPERCOP version |
|---|
| 3604244 | ref-karatsuba | clang -march=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments | 20160718 | 20160715 |
| 4212636 | ref-karatsuba | gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv | 20160718 | 20160715 |
| 4329776 | ref-karatsuba | gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv | 20160718 | 20160715 |
| 4994984 | ref-karatsuba | gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv | 20160718 | 20160715 |
| 6870432 | ref-karatsuba | gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv | 20160718 | 20160715 |