Roblox

The Intel Core i5-12400F paired with the AMD Radeon RX 9070 delivers a high-performance Roblox experience, with measured frame rates ranging from 114.4 FPS at 4K Ultra to 475.7 FPS at 1080p Low. The data shows a system capable of well over 100 FPS at every tested resolution and settings combination, indicating robust headroom for this sandbox title.

Resolution Scaling

The frame rate scaling across resolutions reveals a system that is heavily CPU-bound at lower resolutions, with the GPU becoming the limiting factor only at 4K. At 1080p High, the combo produces 378.9 FPS. Moving to 1440p High, the average drops to 256.8 FPS, a reduction of approximately 32%. At 4K High, the average falls further to 143 FPS, another 44% decrease from the 1440p result. This scaling pattern is typical of a game where the CPU's single-thread performance dictates the ceiling at lower resolutions, while the GPU's rendering load becomes dominant as pixel count increases.

The gap between settings at each resolution is telling. At 1080p, the difference between Low (475.7 FPS) and Ultra (306.8 FPS) is 168.9 FPS. At 1440p, that same Low-to-Ultra spread narrows to 110.9 FPS (316.8 vs 205.9). At 4K, the spread tightens further to 62.9 FPS (177.3 vs 114.4). This convergence indicates that the GPU is progressively becoming the bottleneck as resolution climbs; the performance penalty for enabling Ultra settings is largely absorbed by the graphics card, not the processor.

The 4K results show the RX 9070 still has substantial capability in this title. Even at 4K Ultra, the system maintains 114.4 FPS, which is comfortably above standard 60 Hz display refresh rates. The step from High (143 FPS) to Ultra (114.4 FPS) at 4K costs 28.6 FPS, a 20% reduction, suggesting that the most demanding settings here are still well within the GPU's comfort zone. The data implies that for competitive play at high refresh rates, 1080p or 1440p are the sensible choices, while 4K is viable for visual fidelity without sacrificing smoothness.

GPU Role

The AMD Radeon RX 9070, based on the RDNA 4.0 architecture and the Navi 48 chip, is the dominant component in determining absolute frame rates at higher resolutions. Its 16 GB of GDDR6 memory on a 256-bit bus provides 644.6 GB/s of bandwidth, which is ample for Roblox's asset streaming at any tested setting. The GPU's boost clock of 2520 MHz and game clock of 2070 MHz give it substantial compute throughput, evidenced by its 36.13 TFLOPS of FP32 performance and a PassMark G3D score of 25381.

The GPU's influence is most pronounced when examining the 4K results. The shift from Low (177.3 FPS) to Ultra (114.4 FPS) at 4K represents a 62.9 FPS penalty, which is the largest absolute drop across all resolutions for equivalent setting changes. This demonstrates that the RX 9070's shading units (3584) and texture mapping units (224) are being fully exercised at 4K Ultra. The texture rate of 564.5 GTexel/s and pixel rate of 322.6 GPixel/s are the likely performance ceilings here.

In the context of its benchmark peers, the RX 9070's average benchmark score of 34780 places it 0.2% below the NVIDIA A2 and 0.3% above the NVIDIA Quadro GV100. These are close matches, indicating that the GPU's raw computational power is consistent with those professional-grade cards. The 79th percentile ranking among all GPUs underscores that this is a high-end part, but the measured Roblox performance shows it is not being pushed to its limits until 4K Ultra, where the frame rate finally dips below the 1440p results by a significant margin.

CPU Role

The Intel Core i5-12400F serves as the performance foundation, and its 6 cores and 12 threads are the primary driver behind the extraordinarily high frame rates at 1080p. With a base clock of 2.50 GHz and a boost clock of 4.40 GHz, this Alder Lake-S processor delivers strong single-thread performance, which is critical for Roblox's typically physics-based and script-driven workloads. The CPU's 18 MB of shared L3 cache and 1.25 MB of L2 cache per core provide fast access to frequently used data, reducing latency in game logic.

The CPU's influence is clear in the 1080p results. At 1080p Low, the system achieves 475.7 FPS, which is a 96.8 FPS increase over 1080p High (378.9 FPS). This massive jump when lowering settings indicates that the CPU is capable of pushing far beyond what the GPU can render at those settings, even with the RX 9070's high throughput. The fact that the system exceeds 300 FPS at 1080p Ultra (306.8 FPS) confirms that the i5-12400F is not a limiting factor at this resolution; the frame rate is being throttled primarily by the GPU's rendering speed.

Benchmark data supports the CPU's capability. The Cinebench R23 multi-core score of 16518 and single-core score of 2332 indicate robust performance for a desktop part. The PassMark multi-thread score of 19433 and single-thread score of 3481 place this CPU in the 77th percentile among all processors. Its nearest rival, the Intel Core i7-8700K, scores an average of 19210, a mere 0.1% difference, showing that the i5-12400F is competitive with older high-end parts. The CPU's 65 W TDP and support for DDR4 and DDR5 memory make it a flexible platform, though memory bandwidth is not a differentiator in these results.

How This Combo Ranks

In the database of tested combinations, this specific pairing of Intel Core i5-12400F and AMD Radeon RX 9070 achieves a rank of 612 out of 1800 combos for Roblox. This places it in the upper third of all tested systems, which is a strong result given that the combination pairs a mid-range CPU with a high-end GPU. The ranking reflects that while the GPU is powerful, the CPU's performance ceiling prevents this combo from reaching the top tiers where flagship processors would be paired with similar GPUs.

The 612th rank out of 1800 combos means that roughly 34% of all tested configurations perform better in this game. Given the frame rates measured, those higher-ranked combos likely feature more powerful CPUs that can push the frame rate even higher at 1080p, where this combo is clearly CPU-limited. The data suggests that upgrading the CPU would yield diminishing returns at 4K, where the GPU is the bottleneck, but could meaningfully improve 1080p and 1440p performance beyond the already high 378.9 FPS and 256.8 FPS averages.

The percentile rankings of the individual components corroborate this assessment. The CPU's 77th percentile ranking versus the GPU's 79th percentile ranking shows they are well-matched in overall capability. However, in a game like Roblox that rewards single-thread speed, the CPU's 3dmark single-thread score of 909 and PassMark single-thread score of 3481 are the metrics that likely cap the maximum achievable FPS. The combo ranking of 612 suggests that there are many systems with faster processors that achieve higher scores, even if the GPU is identical or similar.

FAQ

Q: What is the maximum frame rate this combo can achieve at 1080p?

A: The highest measured average is 475.7 FPS at 1080p Low settings. At 1080p Ultra, the average drops to 306.8 FPS.

Q: How does the RX 9070 compare to its nearest benchmark rival?

A: The RX 9070's average benchmark score of 34780 is 0.2% lower than the NVIDIA A2 (34866) and 0.3% higher than the NVIDIA Quadro GV100 (34677).

Q: Is this system more limited by the CPU or GPU at 4K?

A: At 4K, the GPU is the primary limiting component. The frame rate drops from 177.3 FPS at Low to 114.4 FPS at Ultra, a 62.9 FPS penalty, which shows the rendering load is on the graphics card.

Q: What is the CPU's ranking among all processors?

A: The Intel Core i5-12400F ranks in the 77th percentile of all CPUs, with an average benchmark score of 19221. Its closest rival, the Intel Core i7-8700K, scores 19210, a 0.1% difference.

Q: What settings should be used for competitive play at 1440p?

A: For high refresh rates, 1440p Low provides 316.8 FPS, while 1440p High still delivers 256.8 FPS. Even 1440p Ultra maintains 205.9 FPS, which is sufficient for most high-refresh displays.

Q: How does this combo rank against all other tested configurations?

A: This specific combo ranks 612th out of 1800 tested combinations for Roblox, placing it in the upper third of all systems tested.