There look to be a number of them listed in the Ubuntu Software Center (search "benchmark"), although the only one I've tried is System Profiler and Benchmark.
Benchmark Testing CPU and GPU. up vote 1 down vote favorite.
To CPU benchmarking you can do like. sysbench --test=cpu --cpu-max-prime=20000 run.
On Debian/Ubuntu, sysbench can be installed as follows
If you’ve created Ubuntu Live Disk (Ubuntu 10.10) using Universal USB Installer, you will find Test Memory option in Ubuntu Boot menu.
(V1.6) Benchmarks between Ubuntu 10.04 LTS 64 bit and Windows Vista Home Basic 32 bit.
The benchmarks were recompiled via Ubuntu 14.04 via GCC 4.8.2 that can handle later Intel CPU instructions, including AVX1 and results are included below.
SysBench is a multi-threaded benchmark tool for testing CPU performance, memory allocation, file I/O performance and more. With Raspbian, the CPU test with only a single core and all four cores executes in 298 and 74.5 seconds respectively. With the Ubuntu MATE build...
Go to the CPU Benchmark / Stress Test!
In this tutorial we will see how to install System Stability Tester under Ubuntu 11.10 Oneiric Ocelot or any other version of Ubuntu. System Stability Tester is a cross-platform application similar to SuperPI and is used for CPU and RAM benchmarking, stressing, and burning via an easy to use GUI and CLI.