In combat scenarios or in a populated town area, NPC calculations become the most expensive CPU process. However, this advantage is only maintained in scenes with few characters. In a static scene devoid of NPCs, both AMD and Nvidia GPUs ran ~21 percent faster in Vulkan than in DX11, while Intel GPUs ran 29 percent faster in Vulkan. However, things change if you are CPU-limited (ie your GPU is showing less than ~99 percent utilisation), which is most common at 1080p or lower resolutions and/or with older CPUs. *Note: You can check GPU limitation using the Performance tool in the Windows Game Bar overlay (Win + G), by using tools like MSI Afterburner + RTSS, or by leaving Task Manager's Performance > GPU window open on a second screen. Vulkan provides better performance in CPU-limited scenarios - at least with few NPCs around. When GPU-limited, DX11 offers a measurable performance advantage over Vulkan on Nvidia and Intel GPUs. With an Intel GPU, DirectX 11 runs around 25 percent faster than Vulkan.With an AMD GPU, DirectX 11 and Vulkan run nearly identically.With an Nvidia GPU, DirectX 11 runs around eight percent faster than Vulkan.This is a likely scenario for running at 1440p or higher resolutions, with higher graphical settings, on a PC that meets or exceeds the game's recommended specifications (RTX 2060 Super/RX 5700 XT, paired with a Ryzen 5 3600/Core i7 8700K). Let's start with the most common example - being GPU-limited (ie your graphics card showing ~99 percent utilisation*). We trialled both options on a range of systems with Nvidia, Intel and AMD graphics card to tease out any differences and come up with some recommendations.įollowing our testing, we do have some answers - but things aren't as straightforward as we'd hoped, with different system configurations producing different recommendations. The Baldur's Gate 3 launcher offers a choice between DirectX 11 and Vulkan - so which is the best in terms of performance and stability? The launcher defaults to DX11, while Larian support documents suggest Vulkan, so in the face of this conflicting advice there's only one thing to do: get testing.
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