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No: an AMD graphics card and an Nvidia card cannot be paired through CrossFire to render games together. AMD CrossFire/MGPU and Nvidia SLI or multi-GPU are separate, vendor-specific systems. A DirectX 12 or Vulkan game may support multiple GPUs through its own implementation, but simply installing two cards does not enable that support.
What CrossFire and Nvidia multi-GPU mean
CrossFire is AMD’s multi-GPU technology. AMD’s guidance describes driver profiles for older DirectX 9, 10, and 11 applications; with DirectX 12 and Vulkan, the application itself must implement and configure multi-GPU support. AMD’s older CrossFire API sample documents an AMD-specific DirectX 11 driver extension, not a cross-brand link. AMD’s CrossFire overview and its CrossfireAPI11 sample do not describe linking an AMD card with an Nvidia card.
Nvidia’s SLI and non-SLI multi-GPU documentation likewise covers configurations using Nvidia-based GPUs, not an AMD/Nvidia CrossFire pair. Nvidia’s SLI configuration help is for supported SLI platforms.
Will a DirectX 12 or Vulkan game use both cards?
Not automatically. The API name alone does not mean a game uses multiple GPUs. For DirectX 12 and Vulkan, AMD says the game or application must provide multi-GPU support and its own configuration controls. Check the specific game’s documentation or graphics settings; if it does not offer such support, the second card will not become a rendering partner simply because it is installed. AMD’s current MGPU configuration guide says its instructions are based on AMD Software: Adrenalin Edition 25.6.1.
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AMD’s guide also states that, in the DirectX 9/10/11/OpenGL context it addresses, exclusive full-screen mode is required for MGPU. Performance depends on the application, so adding a card does not guarantee a particular frame-rate increase.
What AMD MGPU requires—and which cards it excludes
AMD’s current MGPU instructions describe an AMD-only configuration, not a method for mixing AMD and Nvidia graphics cards. The guide specifies AMD Software on Windows 10 or later, displays connected to the primary GPU, discrete Radeon cards from the same family, and a motherboard and power supply that support multi-GPU. It explicitly excludes Radeon VII and Radeon RX 7000 series or higher from this MGPU feature. Support and performance vary by application and API.
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Older CrossFire requirements differ by generation. AMD’s legacy guide gives matching-family examples for certain RX, R9, and R7 300-series cards; some older R9/R7 200 and HD 7000 cards may require a CrossFire bridge. It also calls for a CrossFire-certified motherboard with two PCIe x16 slots operating at least at x8 and a power supply sized above the system’s total power needs. The guide lists Windows 7, Windows 8.1, and Windows 10, so those operating-system details are historical guidance, not a current compatibility promise. See AMD’s legacy CrossFire overview for its generation-specific details.
Can mixed AMD and Nvidia cards be used for compute?
Yes, in specialized engineered systems, but that is different from consumer CrossFire gaming. A 2026 arXiv preprint by Jon Hu, Thomas Jia, Jing Zhu, and Zhendong Yu describes adapting heterogeneous AMD–Nvidia clusters for model training. In experiments with LLaMA-8B and Qwen2-7B, the authors report up to 98% of the throughput of an Nvidia-only system using their methods and cluster configuration. The result is specific to those experiments, not a gaming benchmark or evidence that ordinary desktop cards can render a game together. The paper restricts its heterogeneous execution to pipeline-parallel groups and describes substantial system-level adaptation: the 2026 paper.
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What to do if you already have both cards
- For gaming: Treat the cards as separate devices unless a particular game explicitly supports multi-GPU and documents the configuration. CrossFire cannot make an AMD/Nvidia pair cooperate.
- For an AMD-only MGPU setup: Check the supported GPU family, software and OS requirements, application support, display connection, motherboard slots and power supply against AMD’s current guide before installing a second card.
- For compute: Confirm that the specific software framework and workload support both GPU vendors. The existence of research cluster methods does not establish plug-and-play support in consumer applications.
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