Roblox

Roblox, a sandbox title from 2006, presents an interesting case for modern hardware. The combination of the Intel Core i5-12600KF and NVIDIA GeForce RTX 4080 produces frame rates that are exceptionally high, yet the scaling between resolutions and settings reveals a nuanced performance profile that is not solely dependent on the GPU. The data set offers a clear view of how this pairing handles the game’s engine, with the CPU providing a robust foundation while the GPU’s sheer power is often left with headroom to spare.

Resolution Scaling

The measured FPS data shows a dramatic and consistent drop as resolution increases, which is the classic signature of a system that is becoming more reliant on the graphics processor. At 1920x1080 with High settings, the combo achieves an average of 517 FPS. Moving to 2560x1440, that average falls by 33.3% to 345 FPS. The jump to 3840x2160 is even more severe, with the average dropping another 43.5% to 195 FPS. This pattern is not a linear decline; it is an accelerating curve that indicates the rendering load is scaling heavily with pixel count.

This scaling profile suggests that at 1080p, the system is likely hitting a performance ceiling that is not purely GPU-bound. The difference between 1080p and 1440p is a 2.27x increase in pixels, but the FPS drop is only 33.3%, which implies the CPU is still a significant contributor to the final frame rate at the lower resolution. Conversely, the transition from 1440p to 4K represents a 2.25x increase in pixels, but the FPS drop is larger at 43.5%. This larger drop indicates that the RTX 4080 is finally becoming the primary limiting factor at 4K, as it has to work much harder to fill those extra pixels.

The pattern holds true across all settings. At Low settings, the 1080p average is 643 FPS, which drops to 429 FPS at 1440p (a 33.3% decrease) and then to 243 FPS at 4K (a 43.4% decrease). This consistency across settings reinforces the idea that the resolution scaling is a function of the GPU’s rendering workload, not a quirk of a specific preset. The data implies that for users prioritizing the highest possible frame rates, 1080p is where this combo shines, while 4K, while still incredibly fast, is where the GPU’s limits start to show.

CPU Role

The Intel Core i5-12600KF is a 10-core, 16-thread processor based on the Alder Lake architecture, with a base clock of 3.70 GHz and a boost clock of 4.90 GHz. Its benchmark scores are strong, with a Cinebench R23 multi-core score of 23391 and a single-core score of 3302. This single-core performance is crucial for Roblox, which is often not heavily multithreaded. The CPU’s percentile ranking of 79 versus all CPUs indicates it is a solid performer, but its role in this specific game seems to be providing a high-frequency foundation that allows the GPU to run at its full potential.

The 3DMark scores are particularly telling. The single-thread score is 1016, while the 2-thread score is 1995, showing excellent scaling. However, the 4-thread score is 3806, and the 8-thread score is 6128, which is a sub-linear scaling pattern. This suggests that while the CPU has 16 threads, its performance in lightly-threaded workloads is where it excels. For Roblox, the game’s engine likely relies on a few primary threads for game logic and physics, meaning the i5-12600KF’s high boost clock is more important than its total thread count.

When looking at the nearest rivals, the i5-12600KF has an average benchmark score of 27799. This puts it in a tight cluster with the Intel Core i9-10900K, which has a deltaPct of -0.3%, and the AMD Ryzen 7 5800X3D, also at -0.3%. This indicates that despite being a "lower" tier chip in the product stack, its overall processing power is on par with previous generation flagship processors. In Roblox, this level of performance is more than sufficient to avoid being a bottleneck at most settings, as evidenced by the high frame rates even at 4K where the GPU is expected to be the limiting factor.

FAQ

Q: What is the average FPS at 2560x1440 with Ultra settings?

A: The measured average FPS for this combination is 280 frames per second.

Q: How does the i5-12600KF compare to the AMD Ryzen 7 5800X3D in overall CPU benchmarks?

A: The average benchmark score for the i5-12600KF is 27799, which is 0.3% lower than the AMD Ryzen 7 5800X3D's score of 27896.

Q: What is the minimum FPS recorded at 1920x1080 with Medium settings?

A: The minimum FPS recorded for this configuration is 497 frames per second.

Q: Does the RTX 4080 have more or less compute power than the RTX 4080 SUPER?

A: The RTX 4080 has an average benchmark score of 54247, which is 0.1% higher than the RTX 4080 SUPER's score of 54209.

Q: What is the boost clock speed of the Intel Core i5-12600KF?

A: The processor has a maximum boost clock of 4.90 GHz.

Q: At what resolution does the frame rate drop most significantly from the previous step?

A: The data shows the largest percentage drop occurs when moving from 2560x1440 to 3840x2160, where the average FPS decreases by 43.5% on High settings.

Measured FPS Breakdown

The measured FPS data provides a comprehensive look at performance across three resolutions and four quality presets.

At 1920x1080, the system delivers its highest frame rates. With Low settings, the average FPS is 643. Medium settings reduce this slightly to 585 FPS, with a minimum of 497 FPS and a maximum of 673 FPS. High settings produce an average of 517 FPS. The most demanding preset, Ultra, still achieves a very high average of 420 FPS. This resolution shows a clear hierarchy where performance scales down as visual fidelity increases.

At 2560x1440, the averages remain high but show a noticeable step down from 1080p. Low settings yield 429 FPS on average. Medium settings average 390 FPS, with a minimum of 332 FPS and a maximum of 449 FPS. High settings bring the average down to 345 FPS. Ultra settings are the most demanding, with an average of 280 FPS. The pattern is consistent, with each preset tier costing a similar percentage of performance relative to the previous one.

At 3840x2160, the GPU is clearly working harder. Low settings average 243 FPS. Medium settings average 221 FPS, with a minimum of 188 FPS and a maximum of 254 FPS. High settings drop the average to 195 FPS. Ultra settings are the most taxing, producing an average of 158 FPS. Even at the lowest average in the entire data set, the system remains highly playable, indicating that this combination is overkill for most display configurations.

GPU Role

The NVIDIA GeForce RTX 4080 is a powerhouse built on the Ada Lovelace architecture. It features 16 GB of GDDR6X memory on a 256-bit bus, providing a bandwidth of 716.8 GB/s. With 9728 shading units and a boost clock of 2505 MHz, its raw compute capability is immense, as reflected in its Passmark G3D score of 34457. This performance places it in the 86th percentile of all GPUs, and its average benchmark score of 54247 is 0.1% above the RTX 4080 SUPER, showing it is a top-tier card.

In Roblox, the GPU’s role becomes more pronounced at higher resolutions. At 1080p, the frame rates are so high that it is likely the CPU’s instruction throughput, not the GPU’s rendering speed, that sets the practical limit. However, as the resolution increases to 1440p and then 4K, the GPU’s fill rate and memory bandwidth become increasingly critical. The 4K Ultra result of 158 FPS, while still very high, demonstrates that even a card with this much power will eventually feel the load of rendering more pixels.

The VRAM capacity of 16 GB is far beyond what Roblox requires, and the data does not suggest any memory-related bottlenecks. The GPU’s compute performance, as measured by its Passmark GPU Compute score of 20671, is also more than adequate for the game’s shaders and effects. The RTX 4080’s role here is to ensure that the frame rate is never limited by the graphics hardware until the very highest resolution and settings are combined, and even then, the performance is exceptional.

Settings Recommendations

Based on the measured rows, the choice of settings depends entirely on the user’s display and performance goals. For a 1920x1080 display, the data suggests that even the Ultra preset, with an average of 420 FPS, is overkill for most high-refresh-rate monitors. Users could easily select Ultra to get the best visual quality without any practical performance concerns. The Low preset at 643 FPS is only useful for competitive play where every frame matters, but the visual sacrifice is substantial.

At 2560x1440, the Ultra preset’s average of 280 FPS is still far above the refresh rate of most monitors. This makes Ultra the clear recommendation for this resolution, as it provides the best visual experience while still delivering frame rates that exceed what any current display can show. If a user has a 360Hz monitor, they might consider High settings (345 FPS) or Medium (390 FPS) to push even higher, but the difference is marginal.

For 3840x2160, the situation becomes more nuanced. The Ultra preset’s 158 FPS average is still very smooth, but it is the only preset where the frame rate approaches the 144Hz threshold of popular 4K monitors. High settings at 195 FPS provides a significant buffer above that threshold and is likely the best balance for a high-refresh-rate 4K display. The Medium preset at 221 FPS offers even more headroom, and the Low preset at 243 FPS is for those who prioritize maximum frame rate above all else. Given the data, High settings at 4K appears to be the sweet spot, delivering a substantial improvement in frame rate over Ultra with a likely minimal visual impact.

How This Combo Ranks

In the grand scheme of all tested combinations, this pairing of the Intel Core i5-12600KF and NVIDIA GeForce RTX 4080 ranks at position 250 out of 3711 total combos. This places it in the top 6.7% of all systems tested, which reflects its high overall capability. The rank is likely driven by the RTX 4080’s immense power, as the CPU, while strong, is not at the very top of the processor hierarchy.

The ranking suggests that this combo is more than capable of handling nearly any game, and for Roblox, it is in the upper echelon of performance. The fact that it ranks 250th, rather than higher, is likely due to other tested systems using even more powerful CPUs that can push frame rates even higher in CPU-bound scenarios. The data indicates that this is a top-tier combination, but one where the GPU is the star of the show, and the CPU is a capable, but not limiting, partner.