Roblox

Measured FPS Breakdown

The recorded data for this combination of AMD Ryzen 5 7400F and Intel Arc B390 spans three resolutions and four quality presets. The measurements show a clear progression of performance as resolution drops, with the 1920x1080 results being the only tier where every preset comfortably exceeds the 60 FPS playability threshold.

At 3840x2160, the highest resolution tested, the frame rates are the most constrained. The Low preset delivers an average of 64 FPS, which is the only setting at this resolution that clears the 60 FPS bar. Medium averages 59 FPS, with a recorded minimum of 50 FPS and a maximum of 67 FPS, placing it just below the playability threshold on average. High drops to 52 FPS, and Ultra bottoms out at 42 FPS. The spread between Low and Ultra at 4K is 22 FPS, indicating that the graphics preset has a substantial impact on the experience at this resolution. The Medium preset's min/max range of 50 to 67 FPS shows notable variance, meaning even when the average hovers near 60, dips below it are likely during busy scenes.

Moving to 2560x1440, the performance headroom expands considerably. Low averages 114 FPS, Medium averages 104 FPS, and High averages 92 FPS. Ultra still manages 74 FPS, which is comfortably above the 60 FPS threshold. The Medium preset at this resolution records a min of 88 FPS and a max of 119 FPS, a tighter relative range than the 4K Medium result. Every preset at 1440p is playable by the database's 60 FPS standard, and the gap between Low and Ultra is 40 FPS, showing that users can choose higher quality without sacrificing smoothness.

At 1920x1080, the combination performs at its best. Low hits 171 FPS, Medium averages 155 FPS with a min of 132 FPS and a max of 179 FPS, High reaches 137 FPS, and Ultra remains above 100 FPS at 111 FPS. Even the most demanding preset at 1080p nearly doubles the 60 FPS threshold. The difference between Low and Ultra at this resolution is 60 FPS, the largest absolute spread across all resolutions, which suggests the GPU is the primary limiter when pushing higher settings, while the CPU has ample headroom at this resolution.

Across all resolutions, the pattern is consistent: Ultra is the most demanding preset, Low is the least, and Medium sits between them with the only recorded min/max data. The data indicates that this system is heavily resolution-bound, with 4K Ultra producing less than half the frame rate of 1080p Low.

Similar Performance Alternatives

The database places the AMD Ryzen 5 7400F in the 83rd percentile among all tested CPUs, with an average benchmark score of 32750. Its nearest rivals are tightly clustered. The Intel Core i5-14600T scores 32707, a delta of 0.1% relative to the 7400F, meaning the two are effectively identical in CPU-bound scenarios. The Intel Core Ultra 7 155H scores 32697, a 0.2% delta, putting it within the same performance envelope. The AMD Ryzen 7 PRO 6850H scores 32812, which is 0.2% higher than the 7400F, and the AMD Ryzen AI 7 PRO 360 scores 32662, 0.3% lower. For Roblox, where the CPU matters more at lower resolutions and higher frame rates, any of these alternatives would produce nearly indistinguishable results. The 7400F's 6 cores and 12 threads are more than sufficient for the game's workload, and the rival comparisons confirm that the CPU is not a bottleneck in this pairing.

The Intel Arc B390 tells a different story. Its average benchmark score is 1482, placing it in the 9th percentile of all GPUs. The nearest rivals are all older NVIDIA parts. The GeForce GT 520MX scores 1463, a 1.3% delta, the GeForce 800M scores 1460, a 1.5% delta, the GeForce GT 625 OEM scores 1446, a 2.5% delta, and the GeForce GT 710 scores 1443, a 2.7% delta. These deltas are small enough that a user moving from any of those GPUs to the Arc B390 would see a negligible improvement in raw graphics throughput. The B390's 1536 shading units and 24 ROPs, combined with a 2500 MHz boost clock, put it in the entry-level segment. For Roblox, this means the GPU is the limiting factor at higher resolutions and presets, while the CPU sits well above the performance level required.

How This Combo Ranks

In the database's ranking of tested combinations for Roblox, this pairing of AMD Ryzen 5 7400F and Intel Arc B390 ranks 3289 out of 3711 combos. That places it in the lower 11% of all tested systems for this specific game. The rank reflects the GPU's low percentile more than the CPU's strength. The 7400F is a strong processor, but the B390's 9th percentile standing among GPUs drags the overall combination down. The result is a system that can handle Roblox at 1080p and 1440p with ease, but struggles at 4K beyond the Low preset. The ranking is consistent with the measured FPS data: the combination is playable across most settings at lower resolutions, but it is not a high-end performer by any means. Users comparing this combo to others in the database should expect a system that prioritizes CPU capability over graphics throughput.

The Verdict

The question of whether this PC can run Roblox depends entirely on the target resolution. At 1920x1080, the answer is a definitive yes. Every preset, from Low at 171 FPS to Ultra at 111 FPS, clears the 60 FPS playability threshold with significant margin. At 2560x1440, the system also passes at all presets, with Ultra averaging 74 FPS, which is 14 FPS above the threshold. At 3840x2160, the situation narrows: only the Low preset, at 64 FPS, clears 60 FPS. Medium falls just short at 59 FPS, and High and Ultra are not playable by the database's standard, with averages of 52 FPS and 42 FPS respectively. The verdict by resolution is clear: this combination is fully playable at 1080p and 1440p across all settings, but at 4K, users must drop to Low to maintain 60 FPS.

FAQ

Q: Can this system run Roblox at 60 FPS on a 4K monitor?

A: Only with the Low preset, which averages 64 FPS. Medium averages 59 FPS, just below the threshold, and High and Ultra average 52 FPS and 42 FPS respectively.

Q: What is the best preset at 2560x1440?

A: Ultra is the best preset at 1440p, averaging 74 FPS, which is above the 60 FPS threshold. All four presets at this resolution are playable.

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

A: The B390 scores 1482 in the database's benchmark. Its nearest rival, the NVIDIA GeForce GT 520MX, scores 1463, a 1.3% delta. The GeForce 800M scores 1460, the GeForce GT 625 OEM scores 1446, and the GeForce GT 710 scores 1443.

Q: Is the CPU or GPU the bigger factor in Roblox performance?

A: The GPU is the limiting factor at higher resolutions and presets. The CPU ranks in the 83rd percentile, while the GPU ranks in the 9th percentile, and the measured FPS drops significantly as resolution and settings increase.

Q: What frame rate can I expect at 1920x1080 on Medium?

A: The Medium preset at 1080p averages 155 FPS, with a recorded minimum of 132 FPS and a maximum of 179 FPS.

Q: Does the system maintain 60 FPS at 4K Ultra?

A: No. The 4K Ultra preset averages 42 FPS, which is 18 FPS below the playability threshold.

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 at 59 FPS is too close to the threshold and dips to 50 FPS at minimum, so Low is the only safe choice for 4K. At 2560x1440, Ultra is the best setting, averaging 74 FPS, which is 14 FPS above the threshold. All lower presets at 1440p also clear 60 FPS, so there is no need to sacrifice quality. At 1920x1080, Ultra is again the best setting, averaging 111 FPS. The 1080p Ultra result is more than 50 FPS above the 1440p Ultra result, highlighting how much headroom this resolution provides.

CPU and GPU Roles

The data shows a clear division of labor between the AMD Ryzen 5 7400F and the Intel Arc B390. The CPU is a high-performing part, ranking in the 83rd percentile of all CPUs, with a single-thread score of 3689 in Passmark and a multi-thread score of 25645. The GPU, by contrast, sits in the 9th percentile, with a 3DMark Steel Nomad score of 1482. In Roblox, which is a lightly threaded sandbox title, the CPU's single-thread strength is more than enough to drive high frame rates at low resolutions. At 1920x1080 Low, the system hits 171 FPS, which is likely near the CPU's limit for this game. At 1080p Ultra, the frame rate drops to 111 FPS, a decline of 60 FPS, which points to the GPU becoming the limiting factor as settings increase.

At 2560x1440, the GPU's limitations become more apparent. Low averages 114 FPS, which is 57 FPS lower than the 1080p Low result. That is a significant drop for a resolution increase of roughly 78% in pixel count. The CPU is still capable of more, but the B390 cannot sustain the same frame rates. At 1440p Ultra, the average falls to 74 FPS, a 37 FPS drop from 1080p Ultra. At 3840x2160, the GPU is clearly the bottleneck. Low averages 64 FPS, which is 50 FPS lower than 1080p Low. Ultra at 4K averages 42 FPS, barely a third of the 1080p Low result. The scaling between resolutions shows that the GPU's 7.680 TFLOPS of FP32 performance and 60 GPixel/s pixel rate are insufficient for high-resolution, high-setting workloads. The CPU, meanwhile, maintains its position across all resolutions, as evidenced by the fact that the frame rate differences between presets at the same resolution are consistent. The CPU is not the constraint here; the GPU is.