Roblox

Measured FPS Breakdown

At 3840x2160, the Intel Core i5-14600K paired with the Intel Arc B390 delivers an average of 52 FPS on High settings, which falls short of the 60 FPS threshold. Dropping to Medium improves the average to 59 FPS, with a recorded minimum of 50 FPS and a maximum of 67 FPS. Low settings push the average to 64 FPS, while Ultra drops to 42 FPS. The gap between Low and Ultra at this resolution is 22 FPS, indicating a substantial performance cost for the highest preset.

Moving to 2560x1440, the combo shows much stronger results. High settings produce an average of 92 FPS, while Low reaches 114 FPS. Medium sits between them at 104 FPS, with a minimum of 88 FPS and a maximum of 119 FPS. Ultra still clears 60 FPS comfortably at 74 FPS average. The spread from Ultra to Low is 40 FPS, showing that Roblox scales significantly with preset selection at this resolution.

At 1920x1080, the results are consistently high across all presets. Low settings deliver 171 FPS average, Medium reaches 155 FPS with a minimum of 132 FPS and a maximum of 179 FPS, High achieves 137 FPS, and Ultra stays above 100 FPS at 111 FPS average. Every preset at 1080p clears the 60 FPS threshold by a wide margin, with the lowest observed minimum (132 FPS at Medium) still more than double the playability threshold.

How This Combo Ranks

The database places this combination at rank 3289 out of 3711 tested combos for Roblox, which puts it in the lower portion of the overall distribution. The combo’s rank reflects the GPU’s position as a limiting factor; the Intel Arc B390 sits at the 9th percentile among all GPUs in the database, while the Intel Core i5-14600K ranks at the 90th percentile among all CPUs.

The GPU’s nearest rivals in the database include the NVIDIA GeForce GT 520MX, which trails by 1.3% in average score, and the NVIDIA GeForce 800M, which trails by 1.5%. The Intel Arc B390 leads the NVIDIA GeForce GT 625 OEM by 2.5% and the NVIDIA GeForce GT 710 by 2.7%. These are all close matches in raw GPU performance, meaning the B390 competes in the entry-level segment despite its modern architecture.

The CPU, by contrast, is in a different class entirely. The i5-14600K’s nearest rivals are the Intel Xeon Gold 5318H, which is 0.2% slower, and the AMD EPYC 4345P, which is 0.3% faster. The Intel Core Ultra 5 245HX is 0.7% faster, and the Intel Core Ultra 5 245 is 0.8% slower. These margins are negligible, confirming that the CPU is not a bottleneck for this game; the recorded FPS numbers in Roblox are driven almost entirely by the GPU’s capabilities.

CPU and GPU Roles

The data shows a clear division of labor for this game. At 3840x2160, the GPU is the dominant factor. The jump from Low to Ultra at this resolution costs 22 FPS, and even the best preset (Low) only reaches 64 FPS average. The CPU’s 14 cores and 20 threads are largely idle in Roblox’s single-threaded workload, so the i5-14600K’s strong single-core performance (a Cinebench R23 single-core score of 2064) does not translate into higher frame rates when the GPU is saturated.

At 2560x1440, the balance shifts slightly. The GPU still governs the upper presets, but the CPU’s headroom becomes visible in the gap between Low (114 FPS) and Medium (104 FPS). That 10 FPS difference suggests the game is starting to rely on the CPU for draw call processing at higher settings, though the GPU remains the primary constraint. The i5-14600K’s boost clock of 5.30 GHz helps keep frame pacing consistent, as reflected in the Medium preset’s minimum of 88 FPS.

At 1920x1080, the CPU’s role becomes more pronounced. The difference between Low (171 FPS) and Ultra (111 FPS) is 60 FPS, which is a larger absolute spread than at higher resolutions. This indicates that at 1080p, the GPU has enough headroom to respond to preset changes, while the CPU’s single-thread performance (PassMark single-thread score of 4270) ensures that even the heaviest settings do not cause the frame rate to collapse. The i5-14600K’s 24 MB of shared L3 cache also helps maintain consistent performance in Roblox’s physics-heavy scenes.

The scaling between resolutions reinforces this split. Dropping from 4K High (52 FPS) to 1440p High (92 FPS) yields a 77% improvement, while dropping from 1440p High to 1080p High (137 FPS) yields a 49% improvement. The GPU’s memory bandwidth, listed as system dependent, becomes less of a factor as resolution decreases, allowing the CPU’s architecture to shine.

The Verdict

At 3840x2160, this combo can run Roblox, but only on Low settings. The recorded data shows Low averaging 64 FPS, which clears the 60 FPS threshold. Medium falls just short at 59 FPS, and High (52 FPS) and Ultra (42 FPS) are not playable by the database’s standard. The verdict for 4K is clear: stick to Low for a smooth experience.

At 2560x1440, the verdict is much more favorable. The database lists all four presets as playable: High (92 FPS), Low (114 FPS), Medium (104 FPS), and Ultra (74 FPS). Every preset clears 60 FPS, so users can choose Ultra for maximum visual quality without sacrificing playability. The best settings at this resolution are Ultra, with an average of 74 FPS.

At 1920x1080, the combo is fully playable across the board. High (137 FPS), Low (171 FPS), Medium (155 FPS), and Ultra (111 FPS) all exceed the 60 FPS threshold by at least 51 FPS. The best settings are Ultra at 111 FPS average, which provides the highest visual fidelity while maintaining a comfortable margin above the playability point. For users with 1080p displays, this combo delivers a smooth Roblox experience with no preset restrictions.

FAQ

Q: Can this PC run Roblox at 4K with High settings?

A: No. The recorded average FPS at 3840x2160 with High settings is 52, which is below the 60 FPS playability threshold. Only Low settings at 4K reach 64 FPS average.

Q: What is the best preset for 1440p?

A: Ultra is the best preset at 2560x1440, delivering 74 FPS average. All four presets at this resolution clear 60 FPS, so Ultra provides the highest visual quality while remaining playable.

Q: How does the Intel Arc B390 compare to its nearest rivals?

A: The B390 leads the NVIDIA GeForce GT 520MX by 1.3%, the GeForce 800M by 1.5%, the GeForce GT 625 OEM by 2.5%, and the GeForce GT 710 by 2.7% in average benchmark score. These are all close results, placing the B390 in the entry-level GPU tier.

Q: Is the CPU or GPU the bottleneck in Roblox?

A: The GPU is the limiting factor at all resolutions. The i5-14600K ranks at the 90th percentile among CPUs, while the Arc B390 ranks at the 9th percentile among GPUs. The CPU’s single-core performance is more than sufficient for Roblox, so frame rates are constrained by the GPU’s fill rate and shading capabilities.

Q: What FPS can I expect at 1080p with Medium settings?

A: The recorded average is 155 FPS, with a minimum of 132 FPS and a maximum of 179 FPS. This is well above the 60 FPS threshold, providing a smooth experience with headroom for recording or streaming.

Q: Does the combo meet the 60 FPS threshold at 4K with any preset?

A: Yes, but only with Low settings. The average at 3840x2160 Low is 64 FPS. Medium averages 59 FPS, which is just below the threshold, and High and Ultra fall further behind at 52 FPS and 42 FPS, respectively.

Best Settings per Resolution

At 3840x2160, the most demanding preset that stays at or above 60 FPS is Low, with an average of 64 FPS. Medium is not viable as it averages 59 FPS, which misses the threshold by 1 FPS. Users at this resolution should accept Low for a stable frame rate.

At 2560x1440, the most demanding preset that clears 60 FPS is Ultra, with an average of 74 FPS. Since all presets at this resolution are playable, Ultra provides the best balance of visual quality and performance. The recorded minimum at Medium is 88 FPS, indicating that frame dips are unlikely to cause stutter even on the heaviest preset.

At 1920x1080, the most demanding preset that stays above 60 FPS is Ultra, with an average of 111 FPS. All presets at this resolution exceed the threshold, so Ultra represents the full visual experience without compromising playability. For users who prefer maximum smoothness, Low at 171 FPS is available, but the data shows no need to sacrifice settings at 1080p.