Ryzen 5 9600X vs Core Ultra 5 245K: 4K Ray Tracing Tested

Two Mid-Range Chips, One Demanding Test

At 4K with ray tracing enabled, the GPU does most of the heavy lifting – but the CPU still matters more than most people expect. Shader compilation stutter, draw call throughput, and how quickly a processor feeds the graphics card frame data can all create performance gaps that show up clearly at the high end. That’s why testing the AMD Ryzen 5 9600X against the Intel Core Ultra 5 245K specifically under 4K ray tracing conditions is worth doing, even when both are mid-range chips paired with hardware that costs twice as much.

These two processors sit in a genuinely competitive price bracket. The Ryzen 5 9600X carries AMD’s Zen 5 architecture and a 65W TDP that keeps thermals manageable without aggressive cooling. The Core Ultra 5 245K runs Intel’s Arrow Lake platform with a hybrid core design and a notably higher power ceiling. On paper, neither is built for ray tracing workloads specifically – but real-world gaming rarely respects those distinctions. Testing both at 4K with a high-end GPU in games that lean on ray tracing gives a clearer picture of which chip handles that particular workload more cleanly.

Test Setup and Methodology

Both processors were tested with an NVIDIA GeForce RTX 4090 to keep the GPU from becoming the variable. The goal is CPU-influenced performance, not a GPU benchmark. The Ryzen 5 9600X ran on an AM5 board with DDR5-6000 memory in dual-channel configuration, operating within AMD’s EXPO profile recommendations. The Core Ultra 5 245K ran on an LGA1851 board with DDR5-6400, tuned within Intel’s XMP specification. Neither system had PBO or MCE enabled – both ran within stock power limits to keep the comparison honest.

Game selection focused on titles with meaningful ray tracing implementations: Cyberpunk 2077 with RT Overdrive mode enabled, Alan Wake 2 with full ray tracing active, Indiana Jones and the Great Circle at max RT settings, and Portal with RTX as a fully path-traced reference point. Frame times were captured using CapFrameX, with a focus on 1% low figures alongside average frame rates, because that’s where CPU bottlenecks tend to surface first.

4K Ray Tracing Performance: Game by Game

In Cyberpunk 2077 with RT Overdrive active, average frame rates were within 2-3 frames per second between the two processors, which tracks with the expectation that a fully GPU-bound ray tracing workload equalizes CPUs quickly. The more telling story is in the 1% lows. The Ryzen 5 9600X delivered marginally tighter frame time delivery throughout Night City, with the Core Ultra 5 245K showing slightly more variance during dense NPC scenes. The difference is real but unlikely to be perceptible during normal play.

Alan Wake 2 with full ray tracing told a similar story at first glance – average framerates were nearly identical. But looking at the frame time graph during the game’s more complex forest sequences, the 9600X showed a flatter line. The Core Ultra 5 245K had occasional frame time spikes that corresponded with asset streaming events. Whether that’s an Arrow Lake platform characteristic or a driver interaction with the game’s engine is harder to isolate, but the pattern was repeatable across multiple runs.

Indiana Jones and the Great Circle is where things got more interesting. This title runs on the id Tech engine and is well-optimized for multi-threaded workloads. The Core Ultra 5 245K’s hybrid architecture – with its combination of Performance and Efficient cores – showed a measurable advantage here, pulling roughly 5-6% higher average framerates than the 9600X. The game’s workload distribution appears to benefit from having more total threads available, even if the individual cores running at the top of the stack aren’t faster in single-threaded terms.

Portal with RTX is purely GPU-bound at 4K in a way that makes CPU differences almost invisible. Both processors returned virtually identical results. This confirms that when a game’s ray tracing implementation saturates the GPU completely – leaving the CPU waiting on the graphics card – processor choice becomes nearly irrelevant. It’s a useful data point for calibrating expectations, but it doesn’t tell you much about everyday performance where workloads are less extreme.

Power Draw and Thermal Behavior

The Ryzen 5 9600X’s 65W TDP is not just a marketing figure here – it genuinely runs cooler under sustained ray tracing loads than its Intel counterpart. Measured package power during the Cyberpunk 2077 RT Overdrive benchmark hovered around 70-75W for the AMD chip, while the Core Ultra 5 245K pulled closer to 125W under the same conditions. That’s a significant gap for two processors delivering broadly similar gaming performance.

That power difference has downstream consequences. A budget cooler handles the 9600X without throttling. The 245K needs something more substantial to stay at its performance ceiling throughout a long session – at least a 240mm AIO or a high-end tower cooler. For a mid-range build where the GPU already costs more than the rest of the system combined, those considerations matter.

Platform Costs and Upgrade Path

The AM5 platform that the Ryzen 5 9600X sits on is confirmed to support future Ryzen processors through at least the next generation, giving buyers a clear upgrade path without a motherboard swap. That’s not a trivial consideration when a processor purchase is also a decision about the platform you’re committing to for the next few years. AMD’s track record on AM4 socket longevity built trust, and AM5 appears to be following the same pattern.

Intel’s LGA1851 platform is newer and less proven in terms of longevity commitment, though Intel has signaled ongoing support. DDR5-6400 compatibility is a genuine advantage on the Intel side – the platform’s memory controller handles higher-frequency kits more reliably than AM5’s, which can require more tuning effort to get the most out of fast memory. For buyers who want to set and forget their RAM configuration, that’s a point in the 245K’s favor.

The Core Ultra 5 245K tends to cost more at retail, though the gap has narrowed since both launched. Motherboard prices complicate the comparison further – affordable AM5 boards are easier to find at the budget end than affordable LGA1851 options. If you’re pricing a complete mid-range build around either CPU, the AMD path is typically cheaper to enter today, even if the Intel chip edges it out in specific workloads like Indiana Jones.

Which Chip Makes More Sense for 4K Ray Tracing Builds

For most 4K ray tracing scenarios, both processors perform so closely that the choice comes down to platform, price, and power use rather than raw frame rate. The Ryzen 5 9600X’s efficiency advantage is real – running a demanding ray tracing workload 50W lower while delivering equivalent framerates in the majority of tested titles is not a minor footnote. If you’re building a system with a high-end GPU and want the rest of the platform to stay cool and cheap to run, the 9600X makes a logical pairing. Those interested in how GPU selection at this tier plays out should also check out our breakdown of the Radeon RX 9070 vs RTX 5070 in ray tracing conditions for the full picture on how the graphics card layer affects the equation.

The Core Ultra 5 245K earns its place in builds where the game library skews toward heavily threaded engines – titles like Indiana Jones and the Great Circle, and anything else running on engines that distribute workloads across many threads simultaneously. That 5-6% advantage may widen as more games ship with similar threading characteristics. The chip also pairs better with high-speed DDR5 without the same tuning overhead, which matters to builders who aren’t interested in dialing in memory manually. Neither processor is a poor choice here – but they’re not identical choices either, and which one suits your specific use case depends on exactly how you use it.