For the Super User Questions of the Week #15 the highest voted answer was How much speedup does a hyper thread give? (in theory).

While we should be looking at what theoretical boost Hyperthreading can give I believe we also need to bolster that and physically quantify the "real-world" boost that Hyperthreading gives. To that end I would like to gather opinions and programs that are suitable for proving whether this feature is useful or not.

At the moment I can see the following tests being valid

  • Prime95

  • 7-Zip using a large file collection & 8 threads

  • Handbrake H.264 encoder (does anyone know if there is an accepted "standard" video to convert? Probably not necessary so long as the tests are consistent...)

As I see it we can also gather some information from http://www.cpubenchmark.net and compare CPUs with and without Hyperthreading to get some vague correlation.

If anyone has any good multithreaded programs, appropriate single-threaded applications or even just best-practice test procedures I'd be grateful if you could let me know.


If you have any video games (I know you've got Portal 2), you could compare the performance when hyperthreaded vs. when not. Portal 2 has an option under the advanced video settings to enable or disable multi-core processing, too. You could benchmark it by looking at the average FPS.

  • 1
    That is actually a very good point, a lot of games these days use a high level of multithreading to support different task such as the renderer, physics, audio, and other jobs.
    – Mokubai Mod
    May 20 '11 at 21:11

The best links I ever found on HT performance were at




However, from what I understand, HT is much better on the newer Sandy Bridge & beyond than it was on the original i7 -- so you might check for updated articles on that site.

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .