Roblox

The Intel Core i5-13400F paired with the NVIDIA GeForce RTX 5090 ranks 87th out of 3711 tested combos for Roblox, placing it in the top 2.3% of all configurations evaluated for this title. This is a formidable pairing that delivers frame rates far beyond the 60 FPS playable threshold at every resolution and preset combination tested, with the weakest recorded average still tripling the playability baseline.

How This Combo Ranks

The combo’s 87th place standing among 3711 tested combinations reflects an exceptionally capable system for Roblox. The ranking is driven by the RTX 5090’s position in the 92nd percentile of all GPUs, while the i5-13400F sits in the 77th percentile of all CPUs. The data indicates that this combination is not merely adequate but substantially overqualified for the game, as the lowest measured average frame rate across all settings and resolutions is 183.4 FPS at 4K Ultra.

Benchmark results show a clear performance hierarchy across resolutions. At 1920x1080, the combo achieves an average of 482.4 FPS on Ultra settings, which is roughly 2.6 times higher than the 4K Ultra result. The scaling from 1440p to 1080p is particularly steep: the 2560x1440 Ultra average of 323.5 FPS jumps by 158.9 FPS when moving down to 1920x1080. This suggests the system is heavily CPU-bound at lower resolutions, where the 10-core, 16-thread processor becomes the limiting factor rather than the GPU.

CPU and GPU Roles

The data reveals that the RTX 5090 dominates performance scaling across resolutions, but the CPU still matters significantly at lower settings. When moving from 2560x1440 to 1920x1080 on Low settings, the average frame rate increases from 491.9 FPS to 737.2 FPS, a gain of 245.3 FPS. This 49.9% improvement is far larger than the resolution pixel reduction alone would suggest, indicating that the i5-13400F’s single-thread performance of 960 in 3dmark_single_thread and 3634 in passmark_single_thread becomes the bottleneck.

At 4K resolution, the GPU’s role becomes more pronounced. The RTX 5090’s 32 GB of GDDR7 memory and 1.79 TB/s bandwidth are not fully utilized by Roblox, but the card’s raw compute power — 104.8 TFLOPS FP32 — ensures that even the most demanding preset remains far above playable thresholds. The 4K Ultra average of 183.4 FPS versus the 1440p Ultra average of 323.5 FPS shows a 43.3% drop, which correlates with the 2.25x increase in pixel count, confirming the GPU is now the primary constraint.

Preset scaling within a resolution further illustrates the CPU/GPU balance. At 1080p, moving from Low to Ultra reduces the average from 737.2 FPS to 482.4 FPS, a 34.6% decrease. The same preset transition at 4K drops the average from 277.3 FPS to 183.4 FPS, a 33.9% decrease. The nearly identical percentage drops across resolutions suggest that the preset scaling is consistently GPU-driven, while the absolute frame rate ceiling is set by CPU performance at lower resolutions.

Best Settings per Resolution

At 3840x2160, the most demanding preset that stays at or above 60 FPS is Ultra, with an average of 183.4 FPS. The data shows all four presets — Low, Medium, High, and Ultra — are playable, with averages of 277.3, 252.5, 221.4, and 183.4 FPS respectively. The margin above the 60 FPS threshold is so large that users can freely select any preset without concern.

For 2560x1440, the Ultra preset delivers 323.5 FPS average, which is the best visual quality available while maintaining a 5.4x margin over the playability threshold. The other presets perform even higher: Low at 491.9 FPS, Medium at 446.3 FPS, and High at 394.4 FPS. Every preset at this resolution clears 60 FPS with substantial headroom.

At 1920x1080, the Ultra preset achieves 482.4 FPS average, which is the recommended choice for maximum visual fidelity. The full range of presets shows Low at 737.2 FPS, Medium at 669.1 FPS, and High at 590.5 FPS. The 1080p results are so high that the data suggests the CPU’s 4.60 GHz boost clock and 20 MB shared L3 cache are the limiting factors, not the GPU.

Similar Performance Alternatives

The RTX 5090’s nearest rivals in the benchmark database are the NVIDIA Tesla P100 PCIe 16 GB, which scores 0.3% higher at 79605 versus the 5090’s 79842 average, and the Tesla P100 PCIe 12 GB at 79396, a 0.6% delta. The AMD Radeon RX 6850M XT is 1.1% behind at 78940, while the AMD Radeon Pro Vega 64X is 1.4% ahead at 80959. These delta values are all within 1.4%, meaning systems using these GPUs would deliver virtually identical frame rates in Roblox.

For the CPU side, the i5-13400F’s nearest rivals are the AMD Ryzen 9 6900HS at 25284 average score (0% delta), the Intel Core 5 120 at 25362 (-0.3%), the AMD Ryzen 5 5600X3D at 25365 (-0.3%), and the AMD Ryzen 7 6800H at 25201 (0.4%). All of these processors fall within 0.4% of the i5-13400F’s 25292 average, so swapping to any of them would produce negligible changes in Roblox performance. The Ryzen 5 5600X3D is particularly notable as it matches the i5’s performance despite having fewer cores, highlighting that Roblox is not heavily multi-threaded.

Measured FPS Breakdown

At 3840x2160, the measured averages are 277.3 FPS on Low, 252.5 FPS on Medium, 221.4 FPS on High, and 183.4 FPS on Ultra. The spread from Low to Ultra is 93.9 FPS, representing a 33.9% reduction in performance when enabling the highest preset. The min and max FPS values were not recorded, but the averages alone demonstrate consistent playability.

At 2560x1440, the averages are 491.9 FPS on Low, 446.3 FPS on Medium, 394.4 FPS on High, and 323.5 FPS on Ultra. The gap between Low and Ultra here is 168.4 FPS, or 34.2%, which is nearly identical to the 4K percentage drop. This consistency indicates that the preset scaling is resolution-independent, with the GPU handling the extra load proportionally.

At 1920x1080, the averages are 737.2 FPS on Low, 669.1 FPS on Medium, 590.5 FPS on High, and 482.4 FPS on Ultra. The Low-to-Ultra delta is 254.8 FPS, or 34.6%, again matching the other resolutions’ scaling pattern. However, the absolute values are so high that even the Ultra preset exceeds 480 FPS, meaning the CPU’s 3dmark_16_threads score of 7314 and passmark_multithread score of 25032 are being pushed to their limits.

FAQ

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

A: Yes. The measured average frame rate at 3840x2160 Ultra is 183.4 FPS, which is 3.1 times higher than the 60 FPS playable threshold. All four presets at this resolution clear 60 FPS.

Q: What is the best preset to use at 1440p?

A: The Ultra preset is recommended, as it delivers 323.5 FPS average while providing the highest visual quality. Even the most demanding preset maintains a 5.4x margin above the playability threshold.

Q: How does the CPU compare to its nearest rivals?

A: The i5-13400F has an average benchmark score of 25292, which is within 0.4% of the AMD Ryzen 9 6900HS (25284, 0% delta) and the AMD Ryzen 7 6800H (25201, 0.4% delta). The Intel Core 5 120 and AMD Ryzen 5 5600X3D are both 0.3% faster at 25362 and 25365 respectively.

Q: Is the RTX 5090 overkill for Roblox?

A: The data suggests significant headroom. The GPU ranks in the 92nd percentile of all GPUs and its nearest rival, the Tesla P100 PCIe 16 GB, is only 0.3% different in average score. For Roblox specifically, the lowest measured average across all tests is 183.4 FPS, indicating the card is far beyond the game’s requirements.

Q: What frame rate can I expect at 1080p on High settings?

A: The measured average at 1920x1080 High is 590.5 FPS. This is nearly 10 times the playable threshold, and the data shows the CPU is the limiting factor at this resolution rather than the GPU.

Q: How does the RTX 5090 rank among all GPUs?

A: The RTX 5090 sits in the 92nd percentile of all GPUs with an average benchmark score of 79842. Its nearest rival, the AMD Radeon Pro Vega 64X, is 1.4% faster at 80959, while the AMD Radeon RX 6850M XT is 1.1% slower at 78940.

The Verdict

This system can run Roblox at every resolution and preset combination tested, with extraordinary headroom above the 60 FPS playable threshold. At 3840x2160, all four presets are playable, with Ultra delivering 183.4 FPS average — the lowest result in the entire dataset. At 2560x1440, Ultra achieves 323.5 FPS, and at 1920x1080, Ultra reaches 482.4 FPS. The verdict by resolution confirms that no preset at any resolution dips below 183.4 FPS, meaning users can select the maximum visual quality without any performance concerns. The i5-13400F’s 10 cores and 16 threads, combined with the RTX 5090’s 32 GB of GDDR7 memory and 104.8 TFLOPS of compute, create a system that is overwhelmingly capable for this sandbox title. The data indicates the bottleneck is entirely CPU-side at lower resolutions, but even that constraint leaves frame rates hundreds of FPS above the playability baseline. For Roblox specifically, this combination is not just playable — it is operating in a performance tier where the game’s engine, rather than the hardware, is the ceiling.