Roblox

The Intel Core i5-13400F paired with the NVIDIA GeForce RTX 4070 delivers overwhelming performance in Roblox, a sandbox title that is far more forgiving on hardware than most modern releases. The measured data shows this combination produces triple-digit frame rates at every tested resolution and preset, making it a system that never approaches the 60 FPS playability threshold. With average frame rates ranging from 124.1 FPS at 4K Ultra to 503.2 FPS at 1080p Low, this combo is positioned in the top tier of tested configurations, ranking 866th out of 3711 combos in this game.

Best Settings per Resolution

At 3840x2160, the most demanding preset that remains at or above 60 FPS is Ultra, which delivers an average of 124.1 FPS. This is more than double the playability threshold, and the data indicates that even the heaviest settings at 4K leave substantial headroom. The High preset at this resolution averages 155 FPS, Medium reaches 172.5 FPS, and Low climbs to 190.2 FPS, but Ultra is the recommended choice since it maintains a commanding frame rate while providing the best visual fidelity.

Moving to 2560x1440, the Ultra preset again qualifies as the best playable setting, with an average of 216.3 FPS. The gap between presets widens at this resolution: High averages 269.1 FPS, Medium hits 302.7 FPS, and Low reaches 337.8 FPS. All four settings far exceed 60 FPS, so the choice comes down to visual preference rather than performance necessity.

At 1920x1080, Ultra remains the optimal preset, averaging 325.5 FPS. The lower resolutions continue the trend of diminishing returns on frame rate scaling: High produces 407.2 FPS, Medium achieves 457.4 FPS, and Low peaks at 503.2 FPS. The data suggests that at 1080p, the RTX 4070 is so far ahead of the game's demands that even the most punishing settings cannot push the combo below 300 FPS.

How This Combo Ranks

The combination of the Intel Core i5-13400F and NVIDIA GeForce RTX 4070 ranks 866th out of 3711 tested combos in Roblox, placing it in the top 23.3% of all configurations evaluated. This is a strong showing, though not a top-tier placement, which reflects the fact that Roblox is relatively light on GPU resources and heavily favors high single-thread CPU performance. The CPU ranks in the 77th percentile against all processors, while the GPU sits in the 81st percentile against all graphics cards, indicating that both components are above average but not elite by global standards.

The rank of 866 suggests that there are many combos with faster CPUs or more powerful GPUs that achieve higher frame rates in this specific title. However, given that the playable threshold is 60 FPS and this combo delivers 124.1 FPS at 4K Ultra, the practical performance is exceptional. The ranking reflects the diminishing returns of higher-end hardware in a game that is not particularly demanding, rather than any weakness in this specific pairing.

Measured FPS Breakdown

At 3840x2160, the measured average frame rates show a clear hierarchy: Low produces 190.2 FPS, Medium delivers 172.5 FPS, High achieves 155 FPS, and Ultra drops to 124.1 FPS. The spread from Low to Ultra is 66.1 FPS, representing a 34.8% reduction in performance when moving to the most demanding settings. This scaling is moderate, indicating that the GPU is handling the resolution increase without becoming the primary bottleneck.

At 2560x1440, the averages jump significantly: Low reaches 337.8 FPS, Medium hits 302.7 FPS, High manages 269.1 FPS, and Ultra settles at 216.3 FPS. The difference between Low and Ultra here is 121.5 FPS, a 35.9% drop. The absolute frame rates are much higher than 4K, suggesting that the resolution reduction from 4K to 1440p provides a roughly 77% improvement in average FPS at Ultra settings.

At 1920x1080, the numbers become extraordinary: Low averages 503.2 FPS, Medium achieves 457.4 FPS, High delivers 407.2 FPS, and Ultra produces 325.5 FPS. The gap between Low and Ultra is 177.7 FPS, a 35.3% reduction. Moving from 1440p Ultra to 1080p Ultra improves performance by 109.2 FPS, a 50.5% increase, showing that the CPU begins to play a larger role at lower resolutions where the GPU is less stressed.

Similar Performance Alternatives

Looking at the nearest rivals for the CPU, the AMD Ryzen 9 6900HS matches the i5-13400F's average benchmark score of 25292, with a delta of 0%, meaning they perform identically in synthetic tests. The Intel Core 5 120 is slightly ahead at 25362 with a negative delta of -0.3%, indicating the i5-13400F is marginally slower. The AMD Ryzen 5 5600X3D scores 25365, also a -0.3% delta, while the AMD Ryzen 7 6800H trails slightly at 25201, a +0.4% delta favoring the i5. In Roblox specifically, these CPUs would deliver nearly identical frame rates, though the Ryzen 5 5600X3D's gaming reputation may give it a slight edge in CPU-bound scenarios.

For the GPU, the NVIDIA Tesla P4 is the closest rival with a score of 37628, just 0.1% below the RTX 4070's 37648. The AMD Radeon RX Vega 56 scores 37507, a 0.4% delta, while the NVIDIA GeForce RTX 4080 Mobile is 1.3% faster at 38135. The AMD Radeon PRO W6400 trails by 1.3% at 37157. These comparisons suggest that in Roblox, where the GPU is rarely the bottleneck at 1080p, the differences between these cards would be negligible, but at 4K Ultra, the RTX 4070's advantage over the RX Vega 56 might become more apparent.

CPU and GPU Roles

The data reveals a clear shift in component importance depending on resolution. At 3840x2160, the GPU dominates the performance equation. The frame rate drops from 190.2 FPS at Low to 124.1 FPS at Ultra, a 34.8% reduction that is purely driven by GPU workload. The CPU is not the limiting factor here, as even the lowest preset produces nearly 200 FPS, which is far above what most CPUs can sustain in other titles.

At 2560x1440, the GPU still leads, but the CPU begins to show its influence. The scaling from Low to Ultra is 35.9%, similar to 4K, but the higher absolute frame rates (337.8 FPS at Low) suggest that the CPU is starting to approach its limits. The jump from 4K Ultra to 1440p Ultra is 74.2 FPS, a 59.8% improvement, which is less than the 77% improvement seen at lower presets, hinting at CPU constraints.

At 1920x1080, the CPU becomes the primary bottleneck. The frame rate at Low is 503.2 FPS, which is remarkably high but still below what the GPU could theoretically produce if unconstrained. The difference between 1440p Low and 1080p Low is 165.4 FPS, a 49% improvement, which is less than the resolution scaling would suggest if the GPU were fully in control. The i5-13400F's 10 cores and 16 threads, with a boost clock of 4.60 GHz, are sufficient for Roblox, but the game's single-threaded nature means the CPU's 3dmark single-thread score of 960 and passmark single-thread score of 3634 are more relevant than its multicore numbers.

The Verdict

This PC can run Roblox with exceptional ease at all tested resolutions and presets. The verdict data confirms that every resolution from 1920x1080 to 3840x2160 has all four settings (Low, Medium, High, Ultra) marked as playable, with the best settings being Ultra at each resolution. At 4K Ultra, the average FPS is 124.1, which is more than double the 60 FPS threshold. At 1440p Ultra, the average rises to 216.3 FPS, and at 1080p Ultra, it reaches 325.5 FPS.

The performance is so far beyond the playability threshold that users could enable maximum settings at any resolution without concern. Even the most demanding configuration, 4K Ultra, delivers frame rates that would be considered excellent for competitive gaming. The combo's ranking of 866th out of 3711 confirms the hardware's capability, and the fact that the GPU scores in the 81st percentile while the CPU sits in the 77th percentile indicates a balanced system. For Roblox, this is overkill in the best sense — the i5-13400F and RTX 4070 provide a seamless, high-refresh-rate experience at 4K, and at 1080p, the frame rates approach the limits of what most displays can show.