Roblox

Roblox is not a typical stress test, but the data for this Intel Core i5-12400F and AMD Radeon RX 7900 XTX combination shows extreme performance across all settings. The measured frames per second are exceptionally high, indicating that this pairing is far beyond what the game requires for smooth play, even at 4K resolution. The benchmark results show that this system is capable of delivering a highly responsive experience in Roblox, with the primary question being how the CPU and GPU divide the workload at different settings and resolutions.

CPU Role — cores, clocks, and how they relate to this game's results

The Intel Core i5-12400F is a 6-core, 12-thread processor based on the Alder Lake architecture. It has a base clock of 2.50 GHz and can boost up to 4.40 GHz. This is a modern desktop CPU with a 65 W TDP, and its benchmark scores place it in the 77th percentile of all CPUs tested. Looking at its synthetic performance, it achieves a Cinebench R23 multi-core score of 16518 and a single-core score of 2332. Its Geekbench scores are 9138 multi-core and 2221 single-core. These numbers indicate a very capable processor for gaming workloads. In the context of Roblox, which often relies heavily on single-thread performance for game logic and physics, the i5-12400F's strong single-core showing is advantageous. The data suggests that the CPU is not a primary bottleneck at higher resolutions, as the frame rates remain very high even when the GPU is under more load. The 18 MB of shared L3 cache and 1.25 MB per-core L2 cache help keep frequently accessed data close to the cores, which is beneficial for maintaining high frame times. The processor supports both DDR4 and DDR5 memory, though the benchmark results do not specify which type was used. The CPU's performance is tightly clustered with rivals like the Intel Core i7-8700K (0.1% delta) and the AMD Ryzen 5 7533HS (-0.7% delta), confirming its position as a solid mid-range performer that is well-matched for high-refresh-rate gaming in less demanding titles.

How This Combo Ranks

This specific combination of the Intel Core i5-12400F and AMD Radeon RX 7900 XTX is ranked 287th out of 1800 tested combos for Roblox. This places it in the top 16% of all configurations tested. While the absolute frame rates are staggeringly high, the rank is determined by how other powerful combos perform in this specific game. The ranking suggests that while this is a top-tier setup, there are other combinations that achieve even higher frame rates, likely due to CPUs with even stronger single-core performance. The data shows that the i5-12400F has an average benchmark score of 19221, which is nearly identical to the Intel Core i7-8700K (19210) and only 0.3% ahead of the Intel Core i5-1335U. This indicates that the CPU is not unique in its class, but the GPU pairing is what pushes this combo to a high rank. The combo's position in the 287th spot out of 1800 is a strong result, reflecting that the system is exceptionally well-suited for Roblox, though not the absolute fastest available. The performance is consistent with the CPU's 77th percentile ranking, suggesting the combo's rank is largely limited by the CPU's ability to feed the GPU in a game that is often CPU-bound at lower resolutions.

Resolution Scaling

The measured FPS data shows how the workload shifts between the CPU and GPU as resolution increases. At 1080p with Low settings, the system produces 582.7 FPS. Moving to 1440p Low drops this to 386.5 FPS, and at 4K Low it falls to 221.3 FPS. This is a clear indication that the GPU is becoming a more significant factor as resolution increases, even though the CPU is still capable of high frame rates. The delta from 1080p to 4K is substantial, with the 4K Low result being just 38% of the 1080p Low result. This scaling pattern is typical of a game that is CPU-bound at lower resolutions and GPU-bound at higher ones. At 1080p, the CPU is the limiting factor, as it cannot generate frames fast enough to fully saturate the RX 7900 XTX. However, as the resolution climbs to 4K, the GPU's workload increases, and the frame rate drops to a level where the GPU's performance becomes the primary constraint. The data shows that even at 4K Ultra, the system still maintains an average of 144.5 FPS, which is well above the refresh rate of most monitors. This suggests that the combination is so powerful that it provides a playable experience at all settings, with the scaling from Low to Ultra at 4K showing a 34.7% performance hit, from 221.3 FPS to 144.5 FPS.

Measured FPS Breakdown

The measured results are consistent across all resolutions and settings. At 1920x1080, the average FPS ranges from 378.6 on Ultra to 582.7 on Low. The Medium setting yields 532.3 FPS, and High produces 466.3 FPS. These numbers are exceptionally high, indicating that the CPU is the primary bottleneck at this resolution. The gap between Low and Ultra is 204.1 FPS, showing that graphical settings have a significant impact on the CPU's ability to process the game. Moving to 2560x1440, the frame rates remain very high but show a clear decline. The Low setting produces 386.5 FPS, Medium 356.8 FPS, High 310.3 FPS, and Ultra 254 FPS. The scaling here is more linear, suggesting a more balanced load between CPU and GPU. At 3840x2160, the GPU becomes the dominant factor. The Low setting produces 221.3 FPS, Medium 200.4 FPS, High 179.3 FPS, and Ultra 144.5 FPS. The difference between Low and Ultra at 4K is 76.8 FPS, which is a smaller absolute gap than at 1080p but still represents a 34.7% reduction in performance. These results show that for the best possible frame rates, users should play at 1080p with Low settings, but even the most demanding 4K Ultra preset provides a smooth experience that is well above the standard 60 FPS target.

GPU Role

The AMD Radeon RX 7900 XTX is a high-end graphics card based on the RDNA 3.0 architecture with the Navi 31 chip. It features 24 GB of GDDR6 memory on a 384-bit bus, delivering a bandwidth of 960.0 GB/s. The GPU has a base clock of 1929 MHz and a boost clock of 2498 MHz, with a game clock of 2365 MHz. With 6144 shading units and 192 ROPs, it is a massively powerful card, as evidenced by its Passmark G3D score of 31238, which places it in the 85th percentile of all GPUs. Its performance is comparable to the NVIDIA GeForce RTX 4070 Ti, which has an average score of 44900, with the RX 7900 XTX being 2% behind that rival. In Roblox, the GPU's role becomes more critical as resolution and settings increase. At 1080p, the card is largely underutilized, as the CPU cannot keep up. However, the data shows that at 4K Ultra, the GPU is still able to maintain an average of 144.5 FPS, which reflects its raw compute power. The 24 GB of VRAM is far more than Roblox requires, so memory capacity is not a limiting factor. The GPU's high pixel rate of 479.6 GPixel/s and texture rate of 959.2 GTexel/s ensure that it can handle the game's rendering demands without issue. This card is clearly overkill for Roblox, but it provides headroom for other, more demanding titles.

Settings Recommendations

Based on the measured data, the best experience in Roblox depends on the user's monitor and preference for visual quality versus maximum frame rate. For users with a high-refresh-rate 1080p monitor (240 Hz or higher), the Low setting is the best choice, as it delivers 582.7 FPS, which is the highest measured result. This ensures the system is not leaving any performance on the table and will easily saturate a 240 Hz display. However, the difference between Low and Medium is only 50.4 FPS, so Medium at 532.3 FPS is also a viable option for slightly better visuals. At 1440p, the Low setting provides 386.5 FPS, which is still exceptionally high. For a 1440p 144 Hz monitor, the Medium setting at 356.8 FPS is a better choice, as it offers improved visual fidelity while still providing more than double the refresh rate. The High setting at 310.3 FPS is also a strong option if visual quality is a priority. At 4K, the Ultra setting produces 144.5 FPS, which is just above the 144 Hz refresh rate of many high-end monitors. This makes Ultra the recommended setting for 4K users who want the best image quality without sacrificing smoothness. The High setting at 179.3 FPS is the best choice for those with a 165 Hz or 240 Hz 4K display, as it provides a higher frame rate while still looking excellent. Overall, the data suggests that users should prioritize the highest settings that still allow the frame rate to exceed their monitor's refresh rate. For most users, this will be Ultra at 1080p or 1440p, but the system is capable of handling the game's maximum settings at 4K without any performance concerns.