Two High-End Chips, One Demanding Test
Ray tracing at 1080p sits in a strange position in PC gaming. The resolution is light enough that most modern GPUs can handle the frame rate load, which means the CPU becomes a much bigger variable than people expect. Shader sorting, BVH traversal support, and the way a processor handles the back-and-forth between geometry and lighting calculations all start to matter when ray tracing is pushing the workload beyond pure rasterization. That makes 1080p ray tracing one of the more revealing CPU benchmarks you can run.
AMD’s Ryzen 9 9950X3D and Intel’s Core Ultra 9 285K sit at the top of their respective lineups – both priced for enthusiasts who are not compromising anywhere. The 9950X3D brings AMD’s 3D V-Cache stacking to a 16-core chip for the first time at this tier, while the 285K carries Intel’s Arrow Lake architecture with its hybrid core design and a hefty L3 cache of its own. Neither is a budget play. The question is which one holds up better when ray tracing is doing heavy lifting at 1080p.
For reference on how these chips perform under rasterization loads, the Ryzen 9 9950X3D vs Core Ultra 9 285K: 4K Ray Tracing Tested breakdown covers how the resolution shift changes the competitive picture.
Test Setup and Methodology
Both processors were paired with an Nvidia GeForce RTX 4090 to keep the GPU from being the bottleneck – the goal here is to expose CPU-level performance differences, not GPU ones. Memory was matched at DDR5-6000 on both platforms using XMP/EXPO profiles, with 32GB of dual-channel kit. Each system ran Windows 11 with the latest chipset drivers and per-platform power settings set to high performance. Games were tested at 1080p with ray tracing settings pushed to high or ultra where the option existed, using titles that actually stress CPU-side ray tracing workloads rather than ones that lean entirely on dedicated RT cores.
The game selection covered Cyberpunk 2077 with path tracing enabled via RT Overdrive mode, Alan Wake 2 at its highest RT preset, Control with full ray tracing, and Spider-Man: Miles Morales with ray-traced reflections and shadows active. Frame times were recorded over a consistent benchmark run for each title, with averages and 1% lows both logged. The 1% low numbers are often more telling than averages in ray tracing scenarios because frame time spikes – not raw throughput – are what players actually feel.
Where the 9950X3D Pulls Ahead
In Cyberpunk 2077 with RT Overdrive active, the Ryzen 9 9950X3D produced average frame rates that ran roughly 8 to 12 percent higher than the Core Ultra 9 285K across a run through Dogtown. More telling was the 1% low gap, which widened further – the 9950X3D held its floor noticeably better, producing fewer sharp dips below 60fps during scenes with multiple active light sources and reflective surfaces. Path tracing in Cyberpunk is one of the more CPU-adjacent ray tracing workloads in current gaming because the game’s engine queues geometry and lighting data in ways that are sensitive to cache latency. AMD’s 3D V-Cache architecture, which stacks additional cache directly on the chiplet, reduces how often the processor has to reach out to slower memory for scene data.
Alan Wake 2 showed a similar pattern. The 9950X3D averaged higher frame rates through the outdoor forest sequences where shadow ray counts spike, and the 285K showed more variance in its frame time graph – not instability, but a choppier delivery. The 285K is not slow here by any measure, but the 9950X3D’s cache advantage translates into smoother ray tracing delivery rather than just a higher number at the top of a graph. Control, a title that has had ray tracing support long enough to be well-optimized across platforms, was the closest of the four, with both processors trading blows depending on the specific scene, though the 9950X3D still held a small edge on 1% lows.
Spider-Man: Miles Morales was the clearest example of the pattern holding across genres. The game’s ray-traced reflections create a persistent, scene-wide lighting load rather than localized effects, and the 9950X3D averaged around 10 percent higher frame rates than the 285K through Times Square sequences. The 285K’s hybrid architecture – pairing Performance cores with Efficient cores – handles mixed workloads well in productivity, but in games that are primarily single-threaded in their command submission, the additional cache on the 9950X3D fills a role that core count cannot.
That said, the 285K is not simply outclassed. In scenes where ray tracing is limited to shadows or ambient occlusion rather than full reflections or global illumination, the performance gap narrows considerably. Arrow Lake’s IPC improvements keep the 285K competitive in workloads that do not heavily penalize cache misses, and in titles like Control with its more selective RT implementation, the two chips sit close enough that most players would not distinguish the experience. The 9950X3D’s advantage is most pronounced when RT workloads are simultaneously data-heavy and latency-sensitive – which describes path tracing and full global illumination more than it does simpler shadow ray implementations.
Pricing, Power, and the Real Decision
The Ryzen 9 9950X3D carries a higher retail price than the Core Ultra 9 285K, which is not a small consideration at this tier where both chips are already expensive. AMD’s 3D V-Cache production process adds cost, and the 9950X3D’s launch pricing reflected that. For ray tracing workloads specifically, the premium is easier to justify – you are buying consistent frame time delivery in the most demanding RT scenarios, not just a larger average frame rate number. If the primary use case is gaming with ray tracing pushed to maximum settings, the 9950X3D earns its price difference in a way it might not for productivity workloads where the 285K often closes the gap or leads outright.
Power consumption is the other consideration. The 285K draws more power under full load than the 9950X3D in gaming scenarios, which affects cooling requirements and platform costs if a new cooler or case airflow upgrade is part of the build. Neither chip runs cold by any standard, but the 9950X3D’s power efficiency in gaming workloads – a consequence of the cache reducing memory access frequency – gives it a quieter thermal profile during the kind of extended ray tracing sessions that represent the worst-case scenario for heat output. For anyone building or upgrading specifically to push ray tracing at 1080p, the 9950X3D is the more targeted tool, even if the 285K remains a strong chip that would satisfy most players who do not benchmark for a living.
Frequently Asked Questions
Does the Ryzen 9 9950X3D outperform the Core Ultra 9 285K in ray tracing games?
Yes, the 9950X3D consistently leads in 1080p ray tracing tests, particularly in 1% low frame rates and path tracing workloads where cache latency matters most.
Is the Core Ultra 9 285K still worth buying for ray tracing gaming?
It is a capable chip that competes closely in lighter RT implementations, but the 9950X3D holds a clearer advantage when full global illumination or path tracing is active.
