![]() The drive’s Read speed is on the right, with the Write speed on the left, respectively giving you a sense of how fast apps and videos will load, and how fast things you create will be written to the drive. You only need to focus on the two big gauges. Unless you’re editing video, those details (summarized in the Will it Work? and How Fast? charts below the speedometers) won’t matter at all to you. Here, you can choose the right hard drive to test, and the level of stress for the testing (1GB is least, 5GB is most).īlackMagic designed this app to help video editors determine whether their hard drives could handle various video files, ranging from basic, low-bandwidth NTSC videos to more demanding 1080p videos with higher frame rates and color depths. If you have only one hard drive, you can just hit the Start button after you’ve quit all of your other apps otherwise, you can access settings by pressing the gear button between the two speedometer circles, or use the File and Stress menus at the top of the screen. Completely free to download from the Mac App Store, this app has only a single window and very few settings to worry about. Measuring the speed of your hard drive is the easiest benchmarking process around, and the best tool I’ve found for that task is the BlackMagic Disk Speed Test by BlackMagic Design. Below, I’ll introduce three of the best free Mac benchmarking tools, and explain how they work…įor Hard Drive Speeds: BlackMagic Disk Speed Test Many apps help you measure the speed of various components of your Mac, and with a little help, you can estimate the performance jumps you’ll see after an upgrade. But there’s a common question that comes up when considering upgrades: how can you tell in advance how big of an improvement you’ll actually see? I'm on Twitter ( If you don't use Twitter, I'm also on a number of other platforms as well ( click here for the contact links).Over the course of writing guides to boosting Mac and hard drive speeds, I’ve discussed the incredible performance improvements Macs can get from simple upgrades - adding RAM, choosing a fast solid state drive (SSD) as an internal or external drive, and even running a simple disk optimizer tool. Where do I send my suggestions / requests / bug reports? So if you're serious about measuring the performance of your devices, this application shouldn't be treated as the be-all-end-all source of truth but as a quick indicator used as part of a larger benchmarking effort. Said computation workload is also synthetic (meaning it's not necessarily indicative of real world workloads). Furthermore, the tool is focused at measuring the performance of a very specific highly parallelizable math computation. In addition, different browsers may be better or worse at running the benchmark's code and as such yield higher or lower scores with the same GPU (or CPU). The benchmarking tool faces the same restrictions imposed by browsers that the stress testing tool does. Due to the aforementioned restrictions, testing multiple devices would require you to run "Stress My GPU" on multiple browsers, each of them using a different GPU (or CPU). So while the stress test can indeed max out your GPU's processing utilization, it has limited ability in pushing every single part of your GPU to its maximum limit all throughout the stress test. ![]() Since "Stress My GPU" is web-based, it's restricted to what the browser you're using thinks is OK for a regular website to do. Does the stress test have any limitations? GPU-based cryptocurrency mining) between different devices. Since the benchmark measures your GPU's or CPU's ability to do highly parallelizable math calculations, it could be useful for quickly comparing the performance of running similar workloads (e.g. The benchmarking tool can be used to measure a GPU's (and CPU's) performance relative to other devices as well as for detecting performance degradation due to inadequate cooling or hardware malfunctions. If you really want to test your computer's fans (or just use your PC as a really expensive heater), you can even stress test the GPU and CPU at the same time. without crashing / blue screening your operating system) and to see how your GPU, CPU and PC handle thermal loads (as in their ability to cool themselves while running at peak performance). The stress testing tool can be useful for checking whether an overclocked GPU is running stable over a longer period of time (a.k.a. ![]() I made this since I couldn't find any GPU stress testing software that ran in the browser, without any plugins or executables. It's web-based (using JavaScript and WebGL), meaning there's no installation or downloading needed. "Stress My GPU" is a free online GPU (and CPU) stress testing and benchmarking tool. ![]()
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