Introduction
Graphics processing units (GPUs) have become increasingly important for gamers and professionals who rely on high-end graphics performance. Multi-GPU setups, which use two or more GPUs together, can maximize graphics capabilities by dramatically increasing rendering power. As we head into 2024, multi-GPU configurations will provide new possibilities for those seeking the ultimate graphics experience.
Current Multi-GPU Options
There are two primary approaches to multi-GPU setups as of 2023:
SLI and CrossFire
- SLI is Nvidia’s technology for linking two or more Nvidia GPUs together, while CrossFire is the equivalent from AMD.
- SLI and CrossFire allow GPUs to share the processing load, boosting performance in games and applications.
- However, support for multi-GPU rendering is not consistent across games and software. Performance scaling can be poor in some titles.
Multiple Independent GPUs
- Rather than linking GPUs together, multiple independent GPUs are installed and leveraged separately.
- Each GPU handles a different task like gaming, streaming, video editing etc.
- This avoids the scaling challenges of SLI/CrossFire but requires more careful workload allocation.
Emerging Technologies in 2024
Exciting new technologies will enhance multi-GPU capabilities in 2024 and beyond:
PCIe 5.0
- PCIe 5.0 delivers double the bandwidth of PCIe 4.0, up to 128 GB/s.
- This allows multi-GPU systems to transfer data and communicate faster.
- Nvidia and AMD GPUs and motherboards with PCIe 5.0 are expected in 2023-2024.
AMD CrossFireXR and Nvidia NVLink Bridge
- Advanced bridge interconnects like CrossFireXR and NVLink further improve multi-GPU communication.
- Higher bandwidth reduces latency and bottlenecks.
- This can improve scaling and performance compared to SLI/CrossFire.
Rendering Technologies Like Vulkan and DirectX 12 Ultimate
- New rendering frameworks better support splitting workloads across multiple GPUs.
- Performance loss from inter-GPU communication is reduced.
- This can greatly improve scaling compared to older APIs like DirectX 11.
Configuring a High-End Multi-GPU System in 2024
Dual GPUs
- Two high-end GPUs like Nvidia’s RTX 4090 or AMD’s Radeon RX 8900 XT provide tremendous rendering power.
- Connected via PCIe 5.0 and CrossFireXR/NVLink, they can deliver close to 2x performance in optimized games/apps.
- Great for 8K 120+ fps gaming or reducing rendering times for 3D/VFX work.
Three GPUs
- With a third GPU, you can dedicate one card for physics, one for rendering, and one for post processing.
- Triple GPU power enables the ultimate gaming experience with maxed out settings and buttery smooth framerates.
- Also fantastic for 3D rendering workflows. Requires a motherboard with at least 3x PCIe 5.0 slots.
Four GPUs
- Four GPUs takes things to the extreme with each card handling a different task.
- For example, dedicate individual GPUs for physics, rendering, streaming, and AI processing like DLSS 3.
- Delivers ludicrous rendering power for 3D work and the smoothest possible gameplay.
- Requires a high-end motherboard and PSU to deliver enough PCIe lanes and power.
The Cutting Edge in 2024
Here are some other emerging technologies that could enhance multi-GPU setups in 2024:
- PCIe 6.0 delivering 256 GB/s of bandwidth.
- DirectStorage for rapid GPU asset loading.
- Faster memory like GDDR7 providing additional bandwidth.
- Multi-die GPU designs connecting GPU cores via advanced interconnects.
Conclusion
Thanks to new connectors, APIs, and GPU technologies, running multiple graphics cards together will become more viable and deliver unmatched performance in 2024. Carefully configured multi-GPU systems can provide the ultimate power for gaming, 3D rendering, AI workloads, and creative applications. The future is bright for those wanting to maximize their graphics capabilities.
