Roblox

Measured FPS Breakdown

The recorded data for Roblox on this AMD Ryzen 5 5600 and Intel Arc B390 combination spans three resolutions and four quality presets. At 3840x2160, the frame rates are notably constrained. The High preset delivers an average of 52 FPS, which falls short of the 60 FPS playability threshold. Dropping to Medium improves the average to 59 FPS, with the measured range showing a minimum of 50 FPS and a maximum of 67 FPS, indicating noticeable fluctuation. The Low preset is the only 4K option that clears the threshold, reaching an average of 64 FPS. The Ultra preset at this resolution is the most demanding scenario, producing an average of only 42 FPS.

Moving to 2560x1440, the performance picture improves substantially. The Low preset averages 114 FPS, while Medium reaches 104 FPS with a recorded minimum of 88 FPS and a maximum of 119 FPS. High settings deliver 92 FPS on average. Even the most demanding Ultra preset at this resolution holds an average of 74 FPS, comfortably above the playable mark. The data shows a clear step up from 4K, with every preset at 1440p exceeding the 60 FPS target.

At 1920x1080, the combination performs at its strongest. The Low preset averages 171 FPS, Medium averages 155 FPS with a minimum of 132 FPS and a maximum of 179 FPS, and High reaches 137 FPS. The Ultra preset still manages an average of 111 FPS. The scaling from 1440p to 1080p is consistent, with each resolution drop yielding a significant average FPS increase across all settings. The minimum FPS values, where recorded, suggest that even the lower bounds at 1440p Medium (88 FPS) and 1080p Medium (132 FPS) remain well within smooth playable territory.

Best Settings per Resolution

For 3840x2160, the best settings that remain at or above 60 FPS are Low, which produces an average of 64 FPS. The Medium preset at 4K nearly qualifies with 59 FPS average, but it dips below the threshold, so it cannot be recommended as the optimal playable configuration. The High and Ultra presets at this resolution are not viable for maintaining 60 FPS, as their averages of 52 FPS and 42 FPS respectively show.

At 2560x1440, the situation is far more favorable. Every preset clears the 60 FPS mark, so the most demanding option, Ultra, is the best choice. The recorded average at 1440p Ultra is 74 FPS. This gives users headroom above the threshold while enjoying the highest visual quality available in the game's settings.

At 1920x1080, similarly, all presets are playable. The Ultra preset delivers an average of 111 FPS, making it the recommended configuration for this resolution. The gap between Ultra at 1080p (111 FPS) and Ultra at 1440p (74 FPS) is substantial, showing that resolution scaling has a pronounced effect on this hardware combination.

How This Combo Ranks

Within the database's tested combinations for Roblox, this pairing of AMD Ryzen 5 5600 and Intel Arc B390 holds a rank of 3289 out of 3711 total combos. This places it in the lower percentile of tested systems, which aligns with the GPU's overall standing. The Arc B390 itself sits at the 9th percentile among all GPUs in the database, indicating that it is a relatively low-performing part in the broader landscape. The CPU, by contrast, performs much stronger in general benchmarks, ranking at the 74th percentile among all CPUs.

The combo rank of 3289 out of 3711 suggests that while the CPU is capable, the GPU becomes the limiting factor for Roblox performance. The game appears to be sensitive to the GPU's rendering capabilities, particularly at higher resolutions. The fact that the combo ranks in the bottom 12% of tested systems, despite the CPU being above average, reinforces the interpretation that the Arc B390's modest graphics throughput is what holds this pairing back in more demanding scenarios.

Similar Performance Alternatives

Looking at the nearest rivals for the Intel Arc B390, the benchmark data indicates that the GPU's average score of 1482 is closely matched by several older NVIDIA parts. The NVIDIA GeForce GT 520MX scores 1463, a delta of 1.3% lower. The NVIDIA GeForce 800M scores 1460, 1.5% lower. The NVIDIA GeForce GT 625 OEM scores 1446, 2.5% lower, and the NVIDIA GeForce GT 710 scores 1443, 2.7% lower. These results suggest that the Arc B390, despite its modern architecture and features like DirectX 12 Ultimate and Vulkan 1.4 support, delivers performance in the same general tier as these legacy GPUs. Systems with those cards would likely exhibit similar Roblox frame rates, though the Arc B390 has a slight edge in raw benchmark score.

For the CPU side, the AMD Ryzen 5 5600 has an average benchmark score of 20468. Its nearest rivals include the Intel Core Ultra 7 258V at 20454, a 0.1% difference; the AMD Ryzen 5 8500G at 20425, a 0.2% difference; the AMD EPYC 9454P at 20422, a 0.2% difference; and the AMD EPYC 7713 at 20363, a 0.5% difference. These CPUs are all within a fraction of a percent in average score, meaning that swapping the Ryzen 5 5600 for any of these would likely produce nearly identical results in Roblox, assuming the same GPU is used. The CPU's performance is not the bottleneck in this configuration, so these alternatives would not meaningfully change the measured FPS.

FAQ

Q: Can this PC run Roblox at 4K resolution above 60 FPS?

A: Only at Low settings. The measured average at 3840x2160 Low is 64 FPS. Medium averages 59 FPS, which is below the 60 FPS threshold, and High and Ultra average 52 FPS and 42 FPS respectively.

Q: What is the best preset for 2560x1440?

A: The Ultra preset is the best choice at 1440p. It produces an average of 74 FPS, and all other presets (High at 92, Medium at 104, Low at 114) also exceed the 60 FPS playable mark.

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

A: The Arc B390 has an average benchmark score of 1482. Its closest competitors are the NVIDIA GeForce GT 520MX at 1463 (1.3% lower), the NVIDIA GeForce 800M at 1460 (1.5% lower), the NVIDIA GeForce GT 625 OEM at 1446 (2.5% lower), and the NVIDIA GeForce GT 710 at 1443 (2.7% lower). These differences are small, indicating similar performance tiers.

Q: Is the CPU or GPU more limiting for this game at higher resolutions?

A: The GPU is the limiting factor. The combo ranks 3289 out of 3711, and the GPU sits at the 9th percentile among all GPUs, while the CPU ranks at the 74th percentile. The FPS drops significantly from 1440p to 4K, which points to GPU rendering constraints rather than CPU processing limits.

Q: What average FPS can I expect at 1920x1080 with Ultra settings?

A: The measured average is 111 FPS at 1080p Ultra. The Medium preset averages 155 FPS, and Low averages 171 FPS, so there is substantial headroom at this resolution.

Q: Does the 4K Medium preset ever dip below 60 FPS?

A: Yes. The recorded minimum at 3840x2160 Medium is 50 FPS, and the maximum is 67 FPS. The average is 59 FPS, which is just under the playable threshold.

The Verdict

The data shows that this PC can run Roblox, but the experience depends heavily on resolution and settings. At 1920x1080, the system clears 60 FPS at every preset, with Ultra averaging 111 FPS and Low reaching 171 FPS. This resolution offers the most comfortable margin above the threshold. At 2560x1440, all presets also exceed 60 FPS, with Ultra at 74 FPS and Low at 114 FPS, making 1440p a fully playable option with high visual quality.

At 3840x2160, the situation changes. Only the Low preset achieves a playable average of 64 FPS. The Medium preset averages 59 FPS, just below the threshold, and its minimum of 50 FPS indicates that frame drops would be noticeable. High at 52 FPS and Ultra at 42 FPS are not suitable for smooth gameplay. The verdict by resolution is clear: 1080p and 1440p are fully playable across all settings, while 4K requires dropping to Low settings to maintain a 60 FPS average. Users with a 4K display should be prepared to compromise on visual quality.

CPU and GPU Roles

The division of labor between the AMD Ryzen 5 5600 and the Intel Arc B390 becomes apparent when examining the scaling across resolutions and presets. The CPU is a strong performer, with a multi-threaded Cinebench R23 score of 18309 and a single-thread score of 2584, placing it at the 74th percentile of all CPUs. Its nearest rivals, such as the Intel Core Ultra 7 258V and AMD Ryzen 5 8500G, are within 0.2% in average score, meaning the CPU is not a differentiator here. In Roblox, the CPU's role is to feed the GPU with draw calls and game logic, and at 1080p Low, the system reaches 171 FPS, indicating that the CPU can handle high frame rates when the GPU is not stressed.

The GPU, however, is the constraining component. The Arc B390 scores only 1482 in the 3DMark Steel Nomad DX12 test and ranks at the 9th percentile among all GPUs. Its nearest rivals are all older, low-end NVIDIA parts, which underscores its limited rendering throughput. The FPS scaling from 1080p to 1440p to 4K shows a clear pattern: at 1080p Ultra, the average is 111 FPS; at 1440p Ultra, it drops to 74 FPS; at 4K Ultra, it falls to 42 FPS. This steep decline is characteristic of a GPU-bound scenario, where the pixel fill rate and shading power of the Arc B390 become insufficient as resolution increases.

At lower resolutions and presets, the CPU's strength becomes more visible. The jump from 1080p Low (171 FPS) to 1080p Ultra (111 FPS) is a 35% reduction, which reflects the increased GPU load from higher settings. At 4K, the GPU is so overwhelmed that even the difference between Low and Ultra (64 FPS vs 42 FPS) is relatively modest compared to the 1080p spread. The implication is that for this game, the GPU dictates performance at higher resolutions, while the CPU provides enough headroom to avoid bottlenecking at lower settings. Users seeking better 4K performance would need a more capable GPU, as the Ryzen 5 5600's processing power is not the limiting factor in this pairing.