There are a lot of benchmarks and test-/diagnostic programs on the Ultimate Boot CD.

BruteBenchmark
Breakin is Advanced Clustering's stress-test and hardware diagnostics tool.
OpenBenchmarking.org is an open, collaborative testing platform designed by Phoronix Media and the developers behind the Phoronix Test Suite.

Geekbench
Geekbench Browser
Geekbench v4 results:

• HP xw6400 Workstation with 2 x Intel Xeon 5320
• ASUS PRIME X370-PRO with Ryzen 1700
• ASUS PRIME X370-PRO with Ryzen 1700

HDTune
CrystalDiskMark
Freecode - fio, Microsoft Windows binaries for fio.

Memtest86
Memtest86+ based on Memtest86.
Memtest OS X memtest for Apple computers.

NetStrain

Lightsmark
FurMark OpenGL 2.0 test.