Karhu RAM Test vs stress-ng
Karhu RAM Test
karhusoftware.comstress-ng
github.comSide by side
| Figure | Karhu RAM Test | stress-ng |
|---|---|---|
| Price from | — | Free |
| Free plan | — | Yes |
| Free trial | — | — |
| Open source | — | — |
| Windows | Yes | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| Android | — | Yes |
| Self-hosted | — | Yes |
| Plans published | 3 | 1 |
| Spec score · PC stress testing tools | 7.0 (#15) | 7.6 (#12) |
| Spec score · Hardware Diagnostic Software | 7.0 (#23) | 7.4 (#16) |
| Purpose | RAM Test is a memory stress test designed to detect faulty hardware and overclock instability. | stress-ng stress tests computer systems by exercising physical subsystems and operating system kernel interfaces. |
Plans
Karhu RAM Test
- Personal licensePriced on request
- Commercial licensePriced on request
- Personal licensePrice not published
In their own words
Karhu RAM Test
Karhu RAM Test has no write-up on Specifiction yet; its figures are above.
stress-ng
stress-ng is a free utility for loading computer subsystems and operating system kernel interfaces with stress tests. Its project lists more than 390 tests, including suites for CPU, virtual memory, filesystems, and memory or CPU caches. CPU tests exercise floating-point, integer, bit-manipulation, and control-flow operations. Listed architecture coverage includes ARM, x86-64, RISC-V, MIPS, Power, SPARC, and s390x. The project originally aimed to reveal hardware problems such as thermal overruns and operating system bugs under heavy load. stress-ng can report test throughput to help observe performance changes between operating system releases or hardware types, but the project says it is not a precise benchmark suite. Some tests may heat poorly designed hardware or create excessive system thrashing that is hard to stop. On Linux, running as root adjusts out-of-memory settings so stressors can become unkillable in low-memory conditions; the README advises careful use. The project documents Docker snapshots and installation on recent Ubuntu releases through its PPA. It is licensed under GPL-2.0 and costs nothing.