We've standardized on using OCAT for our GPU testing, but you can use FrameView or even PresentMon if you prefer. Otherwise, all three of these tools spit out the same general file format that gives frametimes, clock speeds, and a bunch of other details. AMD GPUs however report GPU-only power consumption, which can mean a difference of anywhere from 10W to as much as 100W, depending on the specific GPU (Vega being the worst offender). We've tested graphics cards power consumption using in-line hardware to measure precise loads, and the Nvidia power figures are accurate to within a few watts for Nvidia GPUs. There are minor differences in the interfaces and functionality, with the biggest being that FrameView logs power data. OCAT was created by AMD engineers and is fully open source, while FrameView comes from Nvidia. If you're wondering, FRAPS hasn't been updated since 2013 and has some bugs with Windows 8/10, so it's best to use a modern utility. This is the least user friendly option and we don't recommend it (unless you really like text interfaces), and it's been supplanted by OCAT (Open Capture and Analytics Tool) and FrameView - both of which are based off of PresentMon's core functionality. PresentMon is a command-line interface for logging frametimes. There are three main programs we've used in the past. First, for a lot of real world gaming tests, you need a tool to capture frametimes. Tools of the Tradeīefore you start using one of the best GPU tests, there are a few useful utilities to install. If you're big into running or you use a GPU accelerated application like LuxCoreRenderer, that's great, but specific optimizations for certain GPU architectures can make a big difference in how your PC runs any specific workload. Finally, GPU compute tests are usually quite different in how they work compared to games. Synthetic tests are typically very easy to run, but they only tell you how your PC handles that specific benchmark - which may or may not equate to real-world gaming performance. Running a game you actually play, or want to play, is usually the best way to test performance.

There are three primary types of GPU tests: actual games, 'synthetic' graphics card benchmarks, and compute benchmarks.

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