Roblox

The Intel Core i5-12400 paired with the NVIDIA GeForce RTX 4080 SUPER delivers exceptional performance in Roblox, consistently producing frame rates far beyond what any standard display can utilize. The data shows this combination ranks 132nd out of 1800 tested combos, placing it in the top 7.3% of all systems tested. Across every resolution and settings preset, the measured average FPS never drops below 159.9, which indicates that this pairing is overwhelmingly GPU-limited at lower resolutions but becomes more balanced as resolution increases. The benchmark results reveal a system that is exceptionally well-suited for high-refresh-rate gaming, though the CPU begins to emerge as a limiting factor at 1080p with lower graphical presets.

Resolution Scaling

The FPS drop from 1080p to 4K follows a clear pattern that highlights the shifting bottleneck between components. At Ultra settings, the average frame rate falls from 419.8 FPS at 1920x1080 to 276.9 FPS at 2560x1440, and finally to 159.9 FPS at 3840x2160. This represents a 61.9% reduction from 1080p to 4K, which is substantial but still leaves the system well above playable thresholds. The scaling pattern indicates that at 1080p, the CPU is the primary constraint, as the RTX 4080 SUPER has significant headroom that cannot be fully utilized.

When examining Low settings, the bottleneck becomes even more apparent. The system achieves 641.9 FPS at 1080p, drops to 424.8 FPS at 1440p, and then falls to 244.8 FPS at 4K. The 1080p to 1440p reduction of 33.8% is notably smaller than the 1440p to 4K reduction of 42.4%, which suggests that the CPU is holding back performance more severely at lower resolutions. This is consistent with Roblox's engine characteristics, where single-threaded performance is critical for game logic and physics calculations.

The Medium preset shows similar behavior, with 579.8 FPS at 1080p, 391 FPS at 1440p, and 219.3 FPS at 4K. The High preset delivers 512 FPS at 1080p, 341.5 FPS at 1440p, and 193.8 FPS at 4K. Across all presets, the resolution scaling demonstrates that the RTX 4080 SUPER has ample compute power for Roblox, and the i5-12400's six cores with 4.40 GHz boost clock become the limiting factor at lower resolutions.

GPU Role

The RTX 4080 SUPER's 16 GB of GDDR6X memory with a 256-bit bus width provides 736.3 GB/s of bandwidth, which is far more than Roblox requires at any resolution. The benchmark data confirms that the GPU is never the primary bottleneck in this pairing, as even at 4K Ultra the system maintains 159.9 FPS. The GPU's Ada Lovelace architecture with 10240 shading units and 80 RT cores delivers 52.22 TFLOPS of FP32 performance, yet Roblox's relatively simple geometry and shader workloads cannot fully utilize this compute capacity.

The GPU's clock behavior plays a role in the observed results. With a base clock of 2295 MHz and a boost clock of 2550 MHz, the RTX 4080 SUPER maintains high frequencies throughout the benchmark runs. The memory clock of 1438 MHz (23 Gbps effective) ensures that texture bandwidth is never a constraint. The GPU's 88th percentile ranking among all GPUs, with an average benchmark score of 53610, places it just 0.2% ahead of the AMD Radeon RX 6900 XT and 2.9% ahead of the NVIDIA GeForce RTX 5070 Ti, confirming its position as a top-tier graphics solution.

At 4K Ultra, the GPU is finally engaged enough to show meaningful scaling. The 159.9 FPS result at 4K Ultra versus 193.8 FPS at 4K High demonstrates that the GPU's workload increases significantly with higher settings, yet even the most demanding configuration remains comfortably above 144 FPS. This suggests that for Roblox, the RTX 4080 SUPER is over-provisioned, and the 16 GB memory capacity is never meaningfully stressed by the game's asset streaming.

CPU Role

The Intel Core i5-12400 provides six physical cores with twelve threads, operating at a base clock of 2.50 GHz and boosting to 4.40 GHz. This Alder Lake-S processor, built on Intel's 10 nm process, delivers strong single-threaded performance that is critical for Roblox's engine. The single-thread benchmark scores support this analysis: 910 in 3dmark_single_thread, 2249 in Cinebench R23 single-core, and 3456 in Passmark single-thread tests. These results indicate the CPU is well-suited for the game's primary thread workload.

The CPU's cache hierarchy, with 80 KB L1 per core, 1.25 MB L2 per core, and 18 MB shared L3, provides adequate data locality for Roblox's entity and physics systems. The 77th percentile ranking among all CPUs, with an average benchmark score of 19850, places it essentially on par with the Intel Core i7-9700 (0.1% ahead) and Intel Core i7-8700 (0.2% behind), while being 0.4% ahead of the AMD Ryzen Threadripper PRO 5995WX and the Intel Core i5-11600K.

The CPU's limitation becomes evident when comparing FPS scaling across resolutions. At 1080p Low, the system achieves 641.9 FPS, but this drops to 424.8 FPS at 1440p and 244.8 FPS at 4K. If the GPU were the sole constraint, the scaling from 1080p to 4K would be more dramatic. Instead, the relatively modest drop from 1080p to 1440p at Low settings indicates that the CPU is preventing the GPU from reaching its full potential at lower resolutions. The 12th generation architecture with DDR4 and DDR5 memory support provides sufficient bandwidth, but the game's engine appears to be limited by core count and frequency scaling beyond four threads.

How This Combo Ranks

The combination ranks 132nd out of 1800 tested combos, which places it in the 92.7th percentile of all systems tested. This ranking reflects a well-balanced pairing where neither component severely bottlenecks the other at typical gaming resolutions. The i5-12400's 77th percentile CPU ranking and the RTX 4080 SUPER's 88th percentile GPU ranking combine to produce a system that outperforms the vast majority of tested configurations.

The data shows that this combo performs exceptionally well in Roblox specifically, despite the game's reputation for being CPU-bound. The 132nd rank out of 1800 combos suggests that only 131 other CPU-GPU pairings deliver higher average FPS in this game. Given that many of those higher-ranked combos likely feature newer, more expensive processors, this pairing demonstrates that the i5-12400 provides excellent value in this specific workload without requiring a top-tier CPU.

The ranking also benefits from the RTX 4080 SUPER's position relative to its rivals. With a 0.2% advantage over the AMD Radeon RX 6900 XT and a 2.9% advantage over the NVIDIA GeForce RTX 5070 Ti, the GPU ensures that the combo does not fall behind in GPU-bound scenarios. The CPU's near-parity with the Intel Core i7-9700 and Intel Core i7-8700 means that system builders can achieve comparable Roblox performance with a more modern, efficient processor.

Settings Recommendations

For 1080p gaming, the Medium preset offers the best balance of visual quality and performance, delivering 579.8 FPS. This is 37.8% faster than Ultra (419.8 FPS) while maintaining only slightly reduced visual fidelity. The High preset at 512 FPS is also viable for those who prioritize visual quality, but the jump from Medium to High yields diminishing returns relative to the performance cost.

At 1440p, the High preset delivers 341.5 FPS, which is the recommended choice for most users. The Ultra preset at 276.9 FPS is still highly playable, but the 18.9% performance reduction compared to High is noticeable for competitive players. For 4K gaming, the High preset at 193.8 FPS provides the best experience, as Ultra at 159.9 FPS approaches the threshold where frame time consistency may become a concern on some displays.

The Low preset should be reserved for competitive play where maximum frame rates are prioritized. At 1080p Low, the system achieves 641.9 FPS, which is 53.2% higher than High at 512 FPS. However, the visual degradation may not be worth this performance gain for most users, especially given that even Ultra settings maintain 419.8 FPS at 1080p.

Measured FPS Breakdown

At 1920x1080, the measured average FPS ranges from 419.8 (Ultra) to 641.9 (Low). The Medium preset delivers 579.8 FPS, and High achieves 512 FPS. These results demonstrate that even the most demanding 1080p settings produce frame rates that exceed the refresh rate capabilities of virtually all gaming monitors.

At 2560x1440, the measurements show 276.9 FPS at Ultra, 341.5 FPS at High, 391 FPS at Medium, and 424.8 FPS at Low. The 1440p results indicate that this resolution is the sweet spot for the pairing, as the CPU bottleneck is reduced while the GPU still has substantial headroom.

At 3840x2160, the system delivers 159.9 FPS at Ultra, 193.8 FPS at High, 219.3 FPS at Medium, and 244.8 FPS at Low. These 4K results confirm that the RTX 4080 SUPER's 16 GB memory capacity and 736.3 GB/s bandwidth are sufficient for Roblox at maximum settings, with no evidence of memory-related performance drops.

FAQ

Q: Can this system maintain 144 FPS at 4K Ultra settings in Roblox?

A: Yes, the measured average FPS at 3840x2160 Ultra is 159.9, which exceeds 144 FPS. The system maintains 193.8 FPS at 4K High and 219.3 FPS at 4K Medium, providing comfortable margins above 144 FPS across all settings.

Q: How does the CPU compare to its nearest rivals in overall benchmark scores?

A: The Intel Core i5-12400 scores 19850 on average, which is 0.1% ahead of the Intel Core i7-9700 (19831), 0.2% behind the Intel Core i7-8700 (19894), 0.4% behind the AMD Ryzen Threadripper PRO 5995WX (19928), and 0.4% ahead of the Intel Core i5-11600K (19771).

Q: What is the largest FPS drop when moving from 1080p to 4K?

A: At Ultra settings, the FPS drops from 419.8 at 1920x1080 to 159.9 at 3840x2160, representing a 61.9% reduction. At Low settings, the drop is from 641.9 to 244.8, which is a 61.9% reduction as well.

Q: Is the RTX 4080 SUPER significantly ahead of its nearest GPU rival?

A: The RTX 4080 SUPER has an average benchmark score of 53610, which is 0.2% ahead of the AMD Radeon RX 6900 XT (53489) and 2.9% ahead of the NVIDIA GeForce RTX 5070 Ti (52086). The advantage over the AMD Radeon Pro W6600M is 0.4% (53414).

Q: Does the system show CPU or GPU limitation in Roblox?

A: The data indicates CPU limitation at lower resolutions. At 1080p Low, the system achieves 641.9 FPS, which is only 33.8% higher than 1440p Low (424.8 FPS), suggesting the CPU prevents the GPU from scaling further. At 4K, the GPU becomes more engaged, as shown by the 244.8 FPS result at Low settings.

Q: How does this combo rank among all tested combinations?

A: This pairing ranks 132nd out of 1800 tested combos, placing it in the top 7.3% of all tested CPU-GPU combinations for Roblox performance.