How to Benchmark Your PC for Free (and What the Results Mean)
A benchmark is a test that measures the actual performance of your PC components: CPU, GPU, storage and RAM. Useful for detecting if something is not working correctly, before and after overclocking, or simply to see where your PC stands compared to others.
CPU Benchmark: Cinebench R24
Cinebench R24 (free, from Maxon) is the industry’s most used CPU benchmark. Available on the Microsoft Store.
- Multi Core: measures all-core performance. Important for video editing and 3D
- Single Core: measures one core. More important for gaming
Compare your score at nanoreview.net to see how your CPU ranks against others.
GPU Benchmark: 3DMark (Free Basic)
3DMark by UL Benchmarks has a free version on Steam including the most common tests. Time Spy (DirectX 12) is the most used for modern graphics cards.
After running the test, 3DMark shows how your card compares to others in the same tier.
Storage Benchmark: CrystalDiskMark
CrystalDiskMark (free) measures read and write speed of your hard drive or SSD. Expected speeds:
- Old HDD: 80-160 MB/s
- SATA SSD: 500-550 MB/s
- NVMe PCIe 3 SSD: 2,000-3,500 MB/s
- NVMe PCIe 4 SSD: 5,000-7,000 MB/s
General Benchmark: UserBenchmark
UserBenchmark (free) analyzes all components in one test and gives you a result compared to millions of similar PCs. Useful for detecting bottlenecks (the component holding back the others).
RAM Benchmark: AIDA64
AIDA64 (30-day free trial) includes a RAM benchmark measuring read speed, write speed and latency. Very useful for verifying that dual-channel RAM is working correctly.
How long does a full PC benchmark take?
It depends on the tests: Cinebench R24 takes 5-10 minutes, 3DMark Time Spy about 10-15 minutes, CrystalDiskMark 2-3 minutes. A complete benchmark with all tools takes approximately 30-45 minutes total.
Do benchmarks damage your PC?
No, benchmarks are completely safe. They stress components for a short period but within their design limits. The only risk is if the cooling system is inadequate and the PC already tends to overheat, in which case the benchmark may trigger a thermal shutdown.
My PC performs worse than expected in benchmarks, what should I do?
First check temperatures during the benchmark (with HWiNFO64). If CPU or GPU reach 90+ C, thermal throttling is reducing performance. Also verify that the power plan is set to High Performance and that you have no heavy background apps running.
Conclusion
For a complete benchmark use: Cinebench R24 (CPU), 3DMark (GPU), CrystalDiskMark (storage) and UserBenchmark (general). All are free or have a functional free version. The results tell you exactly where your system’s bottleneck is.
