Roblox

Roblox is notoriously light on modern hardware, and the measured results for the Intel Core i5-14600K and NVIDIA GeForce RTX 4070 SUPER confirm that this pairing is far beyond what the game requires for smooth play. The data shows a system that is fully capable of pushing Roblox to its limits, with performance scaling that reveals a clear shift in bottleneck as resolution and settings change.

Resolution Scaling

The frame rate drop from 1080p to 4K is dramatic, but the pattern of that drop tells the real story about which component is doing the heavy lifting. At 1080p Low, the system produces 560.2 FPS. Moving to 1440p Low, that number falls to 372.1 FPS, a reduction of roughly one-third. At 4K Low, the average is 212.1 FPS, which is a 62% decrease from the 1080p figure. This steep decline indicates that the GPU is becoming the primary limiting factor as pixel count rises, even at the lowest settings.

The scaling pattern is consistent across all settings presets. For High settings, the drop from 451.6 FPS at 1080p to 299.3 FPS at 1440p and then to 169.3 FPS at 4K shows a similar curve. The Ultra preset follows suit, falling from 366.1 FPS at 1080p to 241.8 FPS at 1440p and finally to 136.7 FPS at 4K. The fact that the relative drop between 1080p and 4K is roughly the same for every preset—around 60-63%—suggests that resolution scaling is consistent and that the GPU's workload scales predictably with pixel count.

What is more telling is the gap between Low and Ultra at each resolution. At 1080p, Low nets 560.2 FPS while Ultra nets 366.1 FPS, a difference of 194.1 FPS. At 4K, that gap narrows to 75.4 FPS (212.1 vs 136.7). This narrowing indicates that at 4K, the GPU is so saturated that the additional workload from higher settings has less relative impact on the final frame rate. The CPU is likely keeping up fine; the GPU is the wall.

CPU Role

The Intel Core i5-14600K is a 14-core, 20-thread processor with a base clock of 3.50 GHz and a boost clock of 5.30 GHz. In Roblox, which is not known for heavy multi-threaded usage, the single-core performance is what matters most. The measured scores in the data support this: the Cinebench R23 single-core score is 4642, while the multi-core score is 32881. The Geekbench single-core score is 2803 versus a multi-core score of 15846.

At 1080p Low, the system hits 560.2 FPS, which is likely near the practical ceiling for the game engine itself. The CPU's strong single-thread capabilities, evidenced by its 4270 Passmark single-thread score, are what allow such high frame rates at lower resolutions. However, the data also shows that the CPU is not the limiting factor here; the GPU is. Even at 1080p Ultra, the system manages 366.1 FPS, which is still far above what any display can show.

The CPU's 24 MB of shared L3 cache and 2 MB per-core L2 cache help with the fast data access that Roblox's physics and scripting require. The processor sits at the 93rd percentile among all CPUs, with an average benchmark score of 49166. Its nearest rival, the AMD Ryzen 9 5950X, scores 49062, a delta of just 0.2%. This places the i5-14600K in elite company, but for Roblox specifically, the 20 threads are more than sufficient, and the 5.30 GHz boost clock is what keeps frame times low.

FAQ

Q: Can this system run Roblox at 4K Ultra smoothly?

A: Yes. The measured 4K Ultra average is 136.7 FPS, which is well above the 60 FPS threshold for smooth gameplay. Even the most demanding preset at the highest resolution leaves ample headroom.

Q: Is the CPU or GPU the bottleneck at 1080p?

A: The data suggests the GPU is the bottleneck even at 1080p. The gap between Low (560.2 FPS) and Ultra (366.1 FPS) at 1080p is 194.1 FPS, indicating that the GPU's workload changes significantly with settings, while the CPU maintains high throughput.

Q: How much performance is lost when going from 1440p to 4K?

A: On High settings, the average FPS drops from 299.3 at 1440p to 169.3 at 4K, a loss of 130 FPS, or about 43%. On Low settings, it drops from 372.1 to 212.1, a loss of 160 FPS.

Q: What is the best resolution for competitive play?

A: For the highest frame rates, 1080p Low delivers 560.2 FPS. However, even 1440p Low at 372.1 FPS or 4K Low at 212.1 FPS are far beyond the refresh rates of most monitors.

Q: Does the RTX 4070 SUPER hold back the i5-14600K in this game?

A: The benchmark results indicate that the GPU is the limiting factor at all resolutions and settings. The CPU's single-core performance is sufficient to drive the GPU to its limits, as shown by the consistent frame rates across resolutions.

Q: Is there a big difference between Medium and High settings?

A: At 1080p, the difference is 55.6 FPS (507.2 vs 451.6). At 1440p, it is 43.9 FPS (343.2 vs 299.3). At 4K, the gap narrows to 24.6 FPS (193.9 vs 169.3). The gap shrinks as resolution increases.

Measured FPS Breakdown

The full set of measured averages provides a clear picture of performance scaling.

At 1920x1080, the system delivers its highest numbers. Low settings produce 560.2 FPS, Medium yields 507.2 FPS, High reaches 451.6 FPS, and Ultra drops to 366.1 FPS. The spread from best to worst is 194.1 FPS, showing that settings have a significant impact on the GPU's workload at this resolution.

At 2560x1440, the numbers remain very high. Low averages 372.1 FPS, Medium hits 343.2 FPS, High holds at 299.3 FPS, and Ultra rounds out at 241.8 FPS. The spread narrows to 130.3 FPS, indicating that the GPU is starting to feel the pixel load.

At 3840x2160, the system still never dips below 136.7 FPS. Low averages 212.1 FPS, Medium achieves 193.9 FPS, High manages 169.3 FPS, and Ultra produces 136.7 FPS. The spread here is 75.4 FPS, confirming that the GPU is heavily loaded. The minimum FPS data is not provided in the measurements, but the averages suggest consistent performance without major drops.

GPU Role

The NVIDIA GeForce RTX 4070 SUPER is a 5 nm Ada Lovelace chip with 7168 shading units, 224 texture mapping units, and 80 ROPs. It has 12 GB of GDDR6X memory on a 192-bit bus, providing a bandwidth of 504.2 GB/s. The boost clock is 2475 MHz. In Roblox, the GPU is the primary determinant of frame rate, as the resolution scaling data shows.

The GPU's 3DMark Steel Nomad DX12 score of 4627 and Passmark G3D score of 29995 place it in the 84th percentile among all GPUs. Its average benchmark score is 42576, which is nearly identical to the NVIDIA RTX A6000's 42653 (a delta of -0.2%) and the AMD Radeon RX 7650 GRE's 42723 (a delta of -0.3%). This level of performance is overkill for Roblox, as evidenced by the fact that even at 4K Ultra, the system achieves 136.7 FPS.

The 12 GB VRAM is far more than Roblox needs, even with high-resolution textures. The memory bandwidth of 504.2 GB/s ensures that texture streaming is never a bottleneck. The GPU's PCIe 4.0 x16 interface provides ample bandwidth to the CPU. The data shows that the RTX 4070 SUPER is the limiting factor in this pairing, but that is not a criticism—it simply means the CPU has more headroom than the GPU.

Settings Recommendations

Given the measured data, the choice of settings depends entirely on the target display refresh rate. For a standard 60 Hz display, even 4K Ultra at 136.7 FPS is more than sufficient. For 144 Hz monitors, 4K Medium at 193.9 FPS or 4K High at 169.3 FPS both provide comfortable margins above the refresh rate.

For 240 Hz displays, 1440p Ultra at 241.8 FPS is a perfect match, and 1440p High at 299.3 FPS offers additional headroom. At 1080p, every settings preset exceeds 366 FPS, so the entire range is viable for even the fastest esports monitors. The data suggests that 1440p Ultra is the sweet spot for visual quality and performance, as it delivers 241.8 FPS, which is above the refresh rate of most high-end gaming displays.

If raw frame rate is the priority, 1080p Low at 560.2 FPS is the maximum achievable. However, the gains from lowering settings diminish as resolution increases. The difference between Medium and High at 4K is only 24.6 FPS, while the difference between Low and Ultra is 75.4 FPS. For most users, High settings at 1440p (299.3 FPS) or 4K (169.3 FPS) offer the best balance of visual fidelity and performance, ensuring the system never drops below 60 FPS under any circumstances.