Roblox

The Intel Core i5-12400F paired with the AMD Radeon RX 6750 XT delivers a strong performance profile in Roblox, with measured results showing the combination is capable of high frame rates across all tested resolutions. The data indicates this is a well-balanced setup for the game, though the scaling pattern reveals where the bottleneck shifts as resolution increases.

Resolution Scaling

The measured FPS data shows a clear and predictable decline as resolution increases, but the magnitude of that decline reveals important information about the limiting component. From 1080p to 1440p, the average FPS drops by roughly 34-36% depending on the settings preset, which is a substantial reduction but still leaves the system in very playable territory. Going from 1440p to 4K produces another significant drop, with the average FPS falling by approximately 42-43% across all settings.

At 1080p, the system achieves remarkably high frame rates, with the Low preset hitting 387.1 FPS and even the demanding Ultra preset reaching 253.8 FPS. These numbers suggest that at 1080p, the CPU is likely the primary limiting factor, as the frame rates are high enough that the GPU has headroom to spare. The i5-12400F, with its 6 cores and 12 threads, delivers strong single-threaded performance as evidenced by its 3dmark single-thread score of 909, but at these extreme frame rates, the CPU's ability to feed the GPU becomes the constraint.

Moving to 1440p, the frame rates remain excellent, with the Low preset at 256.7 FPS and Ultra still delivering 170.3 FPS. The scaling from 1080p to 1440p shows the GPU beginning to take on more responsibility, but the system is still far from GPU-bound at this resolution. The 4K results tell a different story, with the Ultra preset dropping to 98.2 FPS and High at 117 FPS. At 4K, the RX 6750 XT's 12 GB of GDDR6 memory and 432.0 GB/s bandwidth become more relevant, and the data suggests the GPU is now the primary bottleneck, though the frame rates remain playable even at the highest settings.

FAQ

Q: Is this combo capable of running Roblox at 4K with high settings?

A: Yes. The measured data shows 117 FPS at 4K High settings and 98.2 FPS at 4K Ultra. Both are well above the 60 FPS threshold for smooth gameplay, and even the most demanding preset remains playable.

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

A: The i5-12400F has an average benchmark score of 19221, which puts it 0.1% ahead of the Intel Core i7-8700K and 0.3% ahead of the Intel Core i5-1335U. It trails the AMD Ryzen 5 7533HS by 0.7% and the AMD EPYC 7773X by 1.3%. This places it in the 77th percentile of all CPUs.

Q: What is the GPU's standing relative to other cards?

A: The RX 6750 XT has an average benchmark score of 35327, placing it in the 79th percentile of all GPUs. It is 0.2% ahead of the AMD Radeon RX 5600M, 0.3% behind the NVIDIA GeForce RTX 5070 Ti Mobile, and 1.3% behind the NVIDIA GeForce RTX 3080.

Q: What frame rate can I expect at 1080p with Medium settings?

A: The measured average FPS at 1080p Medium is 348.8. This is more than sufficient for any display, and the system has substantial headroom for higher refresh rate monitors.

Q: How does the system perform at 1440p compared to 1080p?

A: At 1440p, the average FPS ranges from 170.3 (Ultra) to 256.7 (Low). This represents a drop of roughly one-third from the 1080p results, but all settings presets remain above 170 FPS, making 1440p a very viable resolution for this setup.

Q: Which resolution gives the best balance of quality and performance?

A: Based on the data, 1440p Ultra at 170.3 FPS offers an excellent balance. It provides high visual fidelity while maintaining frame rates far above what most displays can show, and it uses the GPU's capabilities more fully than 1080p.

GPU Role

The AMD Radeon RX 6750 XT plays a critical role in this combination, particularly at higher resolutions. The GPU is built on the RDNA 2.0 architecture with a 7 nm process from TSMC, featuring 2560 shading units, 160 TMUs, and 64 ROPs. Its 12 GB of GDDR6 memory on a 192-bit bus provides 432.0 GB/s of bandwidth, which is substantial for Roblox's relatively modest memory requirements but ensures headroom for texture-heavy scenes.

The GPU's clock behavior is notable, with a base clock of 2150 MHz, a game clock of 2495 MHz, and a boost clock of 2600 MHz. The proximity of the game clock to the boost clock indicates that the card sustains high frequencies under load, which helps explain the strong 4K performance. The GPU's pixel rate of 166.4 GPixel/s and texture rate of 416.0 GTexel/s are more than adequate for the game's rendering needs.

In benchmark terms, the RX 6750 XT's 3dmark Steel Nomad DX12 score of 2548 and Passmark G3D score of 20700 position it as a mid-range performer that punches above its class in a game like Roblox. The GPU's 79th percentile ranking among all GPUs, combined with its 13.31 TFLOPS FP32 performance, shows that it has ample compute power. The 40 ray tracing cores are present but not heavily utilized in Roblox, meaning the card's traditional rasterization strength is what carries the performance.

The data shows that at 1080p, the GPU is not the primary constraint, as frame rates exceed 250 FPS even at Ultra settings. However, at 4K, the GPU's role becomes dominant, and the 98.2 FPS at Ultra demonstrates that the card's memory bandwidth and compute resources are sufficient to maintain smooth gameplay, though the frame rate drops by nearly 60% compared to 1080p Ultra.

How This Combo Ranks

This specific combination of the Intel Core i5-12400F and AMD Radeon RX 6750 XT ranks 885 out of 1800 tested combos for Roblox. This places it in the upper half of all combinations tested, which is a solid result given that the game is not particularly demanding on either component. The rank reflects the balance between the CPU's 77th percentile standing and the GPU's 79th percentile standing, suggesting that neither component is dramatically holding back the other.

The CPU's nearest rivals in terms of average benchmark score—the Intel Core i7-8700K, Intel Core i5-1335U, AMD Ryzen 5 7533HS, and AMD EPYC 7773X—all have scores within 1.3% of the i5-12400F. This indicates that the CPU's performance level is well established, and the combo's rank is more influenced by the GPU's contribution. The GPU's nearest rivals include the AMD Radeon RX 5600M, NVIDIA GeForce RTX 5070 Ti Mobile, AMD Radeon 880M, and NVIDIA GeForce RTX 3080, with scores within 1.3% of the RX 6750 XT.

Given that the combo rank is 885 out of 1800, the data shows this is a mid-pack performer among all tested combinations. However, the absolute frame rates are extremely high, which suggests that many of the combos ranked above this one may be using significantly more powerful (and likely more expensive) hardware. For the specific components in this pairing, the rank indicates a well-matched system that avoids obvious bottlenecks.

Measured FPS Breakdown

At 1920x1080, the system delivers its highest frame rates. The Low preset achieves 387.1 FPS, Medium reaches 348.8 FPS, High hits 311.1 FPS, and Ultra produces 253.8 FPS. The gap between Low and Ultra is 133.3 FPS, or roughly 34%, which shows that even the most demanding settings only reduce performance by about a third at this resolution.

At 2560x1440, the frame rates remain impressive. Low settings produce 256.7 FPS, Medium delivers 235.5 FPS, High achieves 204.9 FPS, and Ultra reaches 170.3 FPS. The spread between Low and Ultra is 86.4 FPS, or approximately 34%, mirroring the 1080p scaling pattern. This consistency suggests the GPU is handling the increased resolution load without disproportionate penalties.

At 3840x2160, the performance drops are more pronounced. Low settings still deliver 144 FPS, Medium achieves 131.5 FPS, High produces 117 FPS, and Ultra falls to 98.2 FPS. The difference between Low and Ultra is 45.8 FPS, or about 32%, which is similar to the lower resolutions. However, the absolute frame rates show that the system is now more constrained, with even the Low preset unable to match the 1440p Ultra results.

The data shows a consistent pattern where each settings tier costs roughly 10-15% performance at any given resolution, and each resolution step costs roughly 35-42% performance. This linear scaling indicates that the combo has no major surprises or bottlenecks that would cause irregular performance drops.

Settings Recommendations

For 1080p gaming, the Ultra preset at 253.8 FPS is the clear recommendation. The frame rate is so high that any display would be fully saturated, and the visual quality benefits from the highest settings without any meaningful performance sacrifice. Even the most competitive players would not notice a difference between Ultra and Low at this resolution, as both exceed 250 FPS.

At 1440p, the Ultra preset at 170.3 FPS remains the best choice. This frame rate is still well above the refresh rate of most monitors, and the visual improvement from High to Ultra is worth the 34.6 FPS cost. The Medium preset at 235.5 FPS offers an alternative for those who prioritize maximum frame rates, but the data shows Ultra is the better balance of quality and speed.

For 4K gaming, the High preset at 117 FPS is the recommended choice. It delivers a 18.8 FPS improvement over Ultra while maintaining visual quality that is nearly indistinguishable in most scenes. The Low preset at 144 FPS is an option for players who want maximum smoothness, but the Medium preset at 131.5 FPS provides a better middle ground. The Ultra preset at 98.2 FPS is playable but leaves less headroom for frame time spikes, making High the safer recommendation for a consistent experience.

Across all resolutions, the data shows that the gap between Medium and High is smaller than the gap between High and Ultra. This suggests that High settings offer the best performance-to-quality ratio, with Ultra providing diminishing returns for the extra performance cost.