MemTest86 vs OCCT
MemTest86
memtest86.com
OCCT
ocbase.comSide by side
| Figure | MemTest86 | OCCT |
|---|---|---|
| Price from | $6.33/mo | €4.50/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Windows | Yes | Yes |
| macOS | Yes | — |
| Linux | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 11 | 9 |
| Spec score · PC stress testing tools | 8.9 (#1) | 7.8 (#8) |
| Spec score · PC Overclocking Software | 8.9 (#2) | 7.8 (#14) |
| Automation | Pro and Site editions can load configuration files to run predefined tests without manual interaction. | Enterprise includes command-line switches for automating tests without the GUI. |
| Founded | 1994 | 2003 |
| Purpose | MemTest86 boots from USB and tests computer RAM for faults using memory test algorithms and patterns. | OCCT is a stability testing, stress testing, benchmarking, and monitoring tool for PCs. |
| Support | Free users receive a public forum, while Pro and Site users receive phone, email and forum support plus 12 months of upgrades. | The maker advertises dedicated expert support for professional edition users. |
Plans
MemTest86
- Pro Site Edition$5,557, paid once
- MemTest86 Pro Support Extension$76 a year
- Free EditionFree
- Free EditionFree
- Pro Support Extension$76 a year
- Pro Download$116, paid once
- Pro Download$116, paid once
- Pro USB Drive$144, paid once
- Pro USB Flash Drive$144, paid once
- Site Edition$5,557, paid once
OCCT
- PersonalPriced on request
- Supporter€4.50 a month
- Supporter+€7 a month
- PersonalFree
- Supporter€4.50 a month
- Supporter+€7 a month
- EnterprisePriced on request
- Enterprise+Priced on request
- ProPriced on request
In their own words
MemTest86
MemTest86 is a bootable utility that checks computer RAM for faults using memory test algorithms and patterns. It runs from a USB drive without an installed operating system, although Windows, Linux, or an Intel-based Mac can be used to create that drive. Version 11.7 requires UEFI firmware and x86 or ARM64 hardware, and does not support Apple Silicon M-series Macs. Its listed coverage includes 14 algorithms, such as SIMD, Row Hammer, and DMA tests, and support for DDR2, DDR3, LPDDR4, LPDDR5(x), ECC, CDIMM, and CAMM2 memory. It can create customizable HTML reports and, on supported configurations, decode an error address to identify a failed DIMM or chip. The Free Edition supports up to 16 CPU cores; Pro supports up to 512 and adds automation and custom tests. Site Edition adds PXE-based LAN deployment and Management Console integration. The Free Edition costs nothing; Pro Download costs $116, paid once.
OCCT
OCCT is a PC tool for stability and stress testing, benchmarking, and system monitoring. Its tests cover CPU, GPU, memory, VRAM, and power supplies, while CPU and memory benchmarks include memory latency and bandwidth measurements. System monitoring and system information use HwInfo. OCCT runs on Windows and Linux. The free Personal edition is for individual use, including PC enthusiasts, overclockers, and gamers, and cannot be used in a commercial or business environment. Personal users need one license per household. Supporter costs €4.50 per month and adds unlimited test duration, no wait time, test reports, and stability certificates; Supporter+ costs €7.00 per month and adds more certificate slots. Pro, Enterprise, and Enterprise+ are the editions directed to business users, with prices available on request, and professional licenses are specific to Windows or Linux. Enterprise includes JSON, CSV, and PDF report export and command-line test automation. It can also run portably from a USB drive or network location without installation or internet access; the On-Premise option keeps system and test data within the customer's infrastructure.