How to benchmark a Mac: CPU, GPU and disk speed

We make Tend. Tend monitors resource use; it isn't a benchmark. The dedicated tools below provide the scores. Checked 23 October 2026 against each maker's website; no benchmark was installed or run for this article.

Choose the test before comparing scores

Tool	Useful question	Current Mac requirements and access
Geekbench 7	How does CPU or GPU compute performance compare in this suite?	macOS 15+, 8 GB RAM, Apple silicon or Intel. Basic edition free; Pro US$99 per user.
Cinebench 2026	How does this machine render the benchmark scene with its CPU or supported GPU?	Free. macOS 14.7+; Maxon's Apple silicon list names M-series chips. GPU rendering needs at least 16 GB unified memory.
Blackmagic Disk Speed Test	How fast can this selected storage path read and write the test data?	Free in the Mac App Store; macOS 10.13+.

Use the manufacturers' linked requirement pages before downloading. In particular, don't assume “Apple silicon” means every test supports a MacBook Neo: Maxon's current named list is M-series, not the Neo's A18 Pro. CPU and GPU support can also differ within the same app.

Scores from Geekbench 6 and 7 aren't interchangeable. Maxon explicitly says Cinebench 2026 scores were readjusted and should not be compared with previous Cinebench versions. A newer app's score changing doesn't by itself show that the hardware got faster or slower.

Prepare conditions you can repeat

Save work and back up anything important before using a tool that writes test data. Use the maker's official download or the Mac App Store. On a managed computer, follow your organization's rules for installing and running workload tests.

Power: for a plugged-in comparison, use a suitable adapter, keep that connection consistent and record the power mode. Turn Low Power Mode off for that comparison; don't compare Automatic with High Power Mode without labelling it.
Environment: use a firm, ventilated surface and comparable room conditions. Let a Mac that has just completed demanding work settle before comparing it with a cool starting run.
Background work: quit optional user apps and pause your own heavy transfers. Wait for known installation or sync work to finish. Keep security protections enabled and don't disable system indexing to chase a score.
Configuration: record chip, core configuration, memory, macOS version, benchmark version and test settings. For storage, add drive, cable, port and hub details.

Maxon notes that background tasks and dynamic clock behaviour make small differences unavoidable. The practical aim is comparable conditions, not a fantasy of a completely inactive operating system.

Run Geekbench and compare like with like

Download the current supported build from Primate Labs. Choose the CPU or GPU test that matches the question. For GPU comparisons, record the selected API, such as Metal, and compare results using that same API.

Keep single-core and multi-core results separate. A task that relies on one busy thread won't necessarily benefit in proportion to the multi-core score, and a GPU compute score isn't a gaming frame rate.

Use Geekbench's Mac chart or matching individual results for context. The chart is calculated from uploaded user results and requires at least five unique results per included Mac. It's an aggregate reference, not a specification Apple guarantees for every configuration.

Check result-sharing behaviour before running on a sensitive work machine. The current free edition uses online results management; Pro lists offline results and commercial-use licensing among its features. Review the edition that matches your use instead of assuming the free workflow keeps every result private.

Use Cinebench for a rendering question

Cinebench 2026 uses Maxon's Redshift renderer for CPU and GPU testing. Choose the supported test and keep its runtime and other settings fixed. A sustained rendering test answers a different question from a brief application launch.

Memory matters. Maxon says CPU rendering can run with less than 16 GB but may page to virtual memory and lose performance; its Apple silicon GPU test requires at least 16 GB. A test refusing to run because of requirements isn't a score of zero.

Don't extend a stress test indefinitely to make a point. Record the duration and stop if the machine behaves abnormally. A high-load test is expected to make a supported actively cooled Mac work hard, but it isn't a substitute for Apple Diagnostics when investigating a fault.

Use Blackmagic for the actual storage path

Blackmagic's App Store description says Disk Speed Test writes large blocks of test data, then continues read and write tests. It changes disk contents by creating test data; it isn't a read-only inspection tool.

Select the intended target using the app's controls and confirm it before starting. An external drive tested through a slow hub measures that entire path, not just the SSD inside the enclosure. Keep the cable, port, target and test settings the same between runs.

Check enough free space is available and keep backups separate from the benchmark. Record the read and write rates independently. Large sequential transfers don't predict every small-file or application-launch workload, and MB/s and Mb/s are different units.

Interpret repeated results honestly

Repeat under the same conditions and keep all results, rather than publishing only the highest. If the runs differ noticeably, investigate the conditions before averaging away a pattern. A first cool run followed by sustained hot runs is information about the test, not a reason to hide the later scores.

If your Mac is below a chart average, confirm the exact chip tier, core count, mode, memory and app version first. Then check the ordinary workload diagnosis. One low score doesn't prove a failed chip or justify replacing hardware.

To judge an upgrade, include the task you actually care about: export duration, build time or a representative project. Keep the input identical and describe the method. This article supplies no Tend-owned score or claimed percentage speedup.

Where dedicated benchmark tools are stronger

Geekbench provides standardized CPU and compute results with a comparison database. Cinebench supplies a rendering workload. Blackmagic tests storage transfers. Tend does none of those jobs and cannot turn a CPU-use reading into one of their scores.

How Tend helps during an owner-run test

Tend's free whole-Mac watts, CPU temperature and resource readings can add context on Apple silicon; Pro exposes the complete sensor list. Per-app watts are estimates, and running a monitor can itself add work, so use the same monitoring setup in every compared run. Tend doesn't replace an external wall-power meter or a benchmark result.

Geekbench, Cinebench and Blackmagic Disk Speed Test are their owners' trademarks. Tend is not affiliated with or endorsed by Primate Labs, Maxon or Blackmagic Design. These links are not affiliate links.

Questions

Which Mac benchmark should I use?

Choose by the question: Geekbench for CPU or GPU compute, Cinebench for rendering and Blackmagic Disk Speed Test for storage transfers. Match the version and settings when comparing results.

Can I compare Geekbench 6 with Geekbench 7?

Treat them as different test suites. Use results from the same major benchmark version rather than interpreting a changed score as a direct hardware gain.

Why does the score change between runs?

Background work, power mode, memory pressure and thermal conditions can change the result. Keep conditions consistent and retain repeated results instead of selecting only the highest.

Did Tend run benchmark tests for this guide?

No. The tool descriptions and requirements were checked against the makers’ websites on 23 October 2026. There are no new benchmark scores or performance measurements in this guide.