Forza Horizon 6: A New Stress Test for Modern GPUs
Forza Horizon 6 is more than a racing game; it is a comprehensive GPU stress test thanks to the latest evolution of the ForzaTech engine. On PC, the title combines ray traced global illumination, full-scene ray traced reflections, and advanced refraction shaders that simulate realistic light diffraction through plastics and polycarbonate elements like headlights. These features push real-time indirect lighting, ambient occlusion, and car-on-car reflections far beyond static cube maps. The game also embraces modern upscaling and frame generation, supporting DLSS, FSR, and XeSS, plus DLSS 4 Multi-Frame Generation up to 6x on RTX 50-series GPUs. To see how current hardware stands up, a 47-GPU Forza Horizon 6 GPU benchmark at 1080p, 1440p, and 4K focused on Extreme and High presets with and without ray tracing, using the in-game benchmark that closely mirrors real gameplay.
RTX 50 Performance: Nvidia’s Official 4K and 1440p Results
Nvidia’s own Forza Horizon 6 GPU benchmark highlights how far RTX 50 performance has advanced, especially with max settings gaming and ray tracing. At 4K with ray tracing enabled, DLSS 4.5 Super Resolution in Performance mode and 4x Multi Frame Generation push RTX 5070 Ti, RTX 5080, and RTX 5090 above 200 fps on average, with the RTX 5090 reaching an impressive 337 fps—beyond what today’s typical 4K displays can show. At 1440p, switching DLSS to Quality mode further boosts results: the RTX 5070 Ti surpasses 240 fps on average with the same 4x frame generation. Translating those numbers into “real” base frame rates, Nvidia notes that the RTX 5070 Ti runs around 66 fps and the RTX 5090 over 100 fps before frame generation, underscoring how much overhead these cards have for high-refresh 1440p and 4K with ray tracing fully enabled.
1080p Extreme + RT: Establishing the Top and Bottom Tiers
At 1080p using the Extreme+RT preset, Forza Horizon 6 sets a clear performance hierarchy in this gaming graphics card comparison. The RTX 5090 tops the chart at 157 fps, outpacing the RTX 4090 by 38% and the RTX 5080 by 45%. The RTX 5080 delivers 108 fps, about 9% ahead of the RTX 5070 Ti, which slightly beats the RTX 4080 Super and RTX 4080. In the upper-mid range, the RTX 5070 Ti is 9% faster than AMD’s RX 9070 XT, though the Radeon still hits a solid 91 fps. Further down, the RTX 5060 Ti 16GB averages 63 fps, landing near the RTX 4070, RTX 3090, and RX 7900 GRE, and standing 40% ahead of its 8GB counterpart. Cards like the RTX 3080 around 48 fps mark the point where max settings and ray tracing become noticeably demanding, while GPUs dropping below 40 fps make the experience significantly less smooth.
1440p and 4K: Where Ray Tracing Really Separates the Field
Moving to 1440p with the Extreme+RT preset, Forza Horizon 6 sharply increases GPU ray tracing performance demands. The RTX 5090 sees a 24% drop yet still averages 120 fps at native 1440p with everything maxed, retaining clear headroom for high-refresh displays. Different architectures scale unevenly: the RX 7900 XTX loses only about 20% from its 1080p result, allowing it to match the RX 9070 at around 60 fps, while the RX 9070 itself falls by roughly 30%. This underscores how some GPUs maintain stronger ray tracing efficiency at higher resolutions. Upscaling further amplifies Nvidia’s advantage: at native 1440p Extreme+RT, the RTX 5070 Ti is about 4% ahead of the RX 9070 XT, but enabling DLSS for GeForce and FSR for Radeon stretches that lead to 8–14%, showing how the right upscaler can meaningfully improve real-world max settings gaming performance.
Practical Recommendations for Smooth 1440p and 4K Play
Putting the Forza Horizon 6 GPU benchmark data together, clear performance tiers emerge for players targeting smooth 1440p and 4K with ray tracing. For native 1080p Extreme+RT, the RTX 5060 Ti 16GB class marks a reasonable baseline, while anything slower than RTX 3080 territory dips toward sub-50 fps. At 1440p with Extreme+RT and no frame generation, GPUs like the RTX 5070 Ti, RTX 5080, and RX 9070 XT become the practical starting point for consistently high frame rates, especially once DLSS or FSR is enabled. For 4K max settings with ray tracing, RTX 50 performance stands out: the RTX 5070 Ti already exceeds 200 fps in Nvidia’s own tests with DLSS Performance mode and 4x frame generation, while the RTX 5090’s 337 fps ceiling shows it is the current flagship for futureproofed 4K. Across the 47 graphics cards tested, at least 12GB of VRAM also emerges as a strong recommendation for fully enjoying the game’s visuals.