Roblox

The Intel Core i5-12400 and AMD Radeon RX 6750 XT pairing delivers a remarkably consistent high-refresh-rate experience in Roblox, with the data showing triple-digit average frame rates even at 4K Ultra settings. This combination of a six-core Alder Lake processor and a 12 GB RDNA 2 graphics card proves to be exceptionally well-suited to Roblox's engine, placing the combo at rank 1673 out of 3711 tested configurations.

CPU Role

The Intel Core i5-12400 brings six physical cores and twelve threads to the table, operating at a base clock of 2.50 GHz and boosting up to 4.40 GHz. This processor, built on Intel's 10 nm process node with the Alder Lake-S architecture, sits in the 72nd percentile of all CPUs tested, indicating it outpaces the majority of processors in the database. Its 18 MB of shared L3 cache provides a substantial buffer for game data, and the dual-channel memory support for both DDR4 and DDR5 gives system builders flexibility without bottlenecking the GPU.

In Roblox, the CPU's role is primarily about maintaining a stable frame delivery pipeline. The benchmark results show that the i5-12400 scores 15989 points in Cinebench R23 multicore and 2257 points in single-core, with the single-thread performance being particularly relevant for a game like Roblox that often relies on a primary simulation thread. The processor's 3DMark scores reinforce this picture: 910 in single-thread, 1692 in 2-thread, and 3012 in 4-thread tests. These scores indicate that the i5-12400 has strong per-core performance, which helps prevent CPU-side frame pacing issues that could otherwise cap the high frame rates this GPU is capable of producing.

The processor's performance relative to its nearest rivals is telling. The i5-12400's average benchmark score of 18683 places it just 0.1% behind the AMD EPYC 7643, 0.3% behind the Intel Core i7-1355U, and 0.7% behind the AMD Ryzen AI 5 330. Conversely, it is 0.9% ahead of the Intel Core i3-14100F. These minuscule deltas suggest that in Roblox, where frame rates routinely exceed 250 FPS at 1080p, the i5-12400 is more than sufficient to feed the GPU. The data shows that even at 4K Ultra, where the GPU load is highest, the average frame rate remains at 95 FPS, indicating the CPU is not creating a bottleneck that would drag performance below playable levels.

GPU Role

The AMD Radeon RX 6750 XT is the dominant component in this pairing for Roblox, and the benchmark data reflects its substantial capabilities. Built on the RDNA 2.0 architecture with the Navi 22 chip, this GPU features 2560 shading units, 160 texture mapping units, and 64 raster operations pipelines. Its 12 GB of GDDR6 memory on a 192-bit bus delivers 432.0 GB/s of bandwidth, which is more than adequate for Roblox's blocky geometry and relatively modest texture loads. The GPU's clock speeds are aggressive, with a base of 2150 MHz, a game clock of 2495 MHz, and a boost clock of 2600 MHz.

The RX 6750 XT's memory configuration is a key asset for high-resolution gaming. The 12 GB frame buffer ensures that even at 3840x2160, the card does not run into VRAM capacity limits that could cause stuttering or texture pop-in. The measured FPS data confirms this: at 4K High settings, the combo maintains an average of 117 FPS, while at 4K Medium it drops slightly to 133 FPS, and at 4K Ultra it still manages 95 FPS. These numbers indicate that the GPU's 432.0 GB/s bandwidth is sufficient to feed the render pipeline without becoming a limiting factor.

The GPU's overall standing in the database is solid, with a percentile rank of 71 against all GPUs and an average benchmark score of 26011. Its nearest rivals are all AMD professional or mobile parts, with the RX 6750 XT leading the AMD Radeon R9 M395X by 0.5%, the AMD FirePro W7100 by 0.6%, and the AMD FirePro D700 by 0.7%, while trailing the NVIDIA GeForce RTX 3080 Ti Mobile by 1.1%. In practical terms for Roblox, the GPU's PassMark G3D score of 20700 and DirectX 12 score of 80 suggest strong raw throughput, while the 3DMark Steel Nomad DX12 score of 2548 indicates it can handle modern rendering workloads. For a game with Roblox's visual style, this GPU is significantly over-provisioned, which is why frame rates reach as high as 405 FPS at 1080p Medium settings.

Settings Recommendations

The measured FPS data provides clear guidance on which settings preset offers the best experience. At 1920x1080, the Ultra preset delivers an average of 252 FPS, which is excellent for any display. However, the High preset pushes that to 311 FPS, and the Low preset reaches 387 FPS. The Medium preset shows a minimum of 299 FPS and a maximum of 405 FPS, with an average of 352 FPS. Given that most 1080p displays top out at 144 Hz or 240 Hz, the High preset at 311 FPS average provides enough headroom to maintain maximum refresh rates without the visual degradation of Low settings.

Moving to 2560x1440, the picture becomes more nuanced. The Ultra preset averages 168 FPS, which still exceeds the refresh rate of most 1440p gaming monitors. The High preset jumps to 208 FPS, while Medium averages 235 FPS with a minimum of 200 FPS and a maximum of 270 FPS. For 1440p users, the High preset is the sweet spot, offering a 40 FPS improvement over Ultra while maintaining visual fidelity that is indistinguishable in most Roblox scenes. The Low preset at 258 FPS is unnecessary unless the user has a 240 Hz 1440p monitor and prioritizes frame rate above all else.

At 3840x2160, the settings choice becomes more critical. The Ultra preset averages 95 FPS, which is playable but may not satisfy users with 120 Hz or 144 Hz 4K displays. The High preset improves this to 117 FPS, while Medium averages 133 FPS with a minimum of 113 FPS and a maximum of 153 FPS. The Low preset reaches 146 FPS. For 4K gaming, the Medium preset offers the best balance, providing a 38 FPS advantage over Ultra while keeping the minimum above 100 FPS. The data indicates that the performance scaling from Ultra to Medium is substantial, suggesting that Roblox's Ultra preset may enable effects that are disproportionately expensive relative to their visual impact at 4K.

How This Combo Ranks

Within the database of tested combinations, this pairing of the Intel Core i5-12400 and AMD Radeon RX 6750 XT holds the 1673rd position out of 3711 total combos. This places it in the 55th percentile of all tested configurations, meaning it outperforms more than half of the systems in the database. For a mid-range desktop pairing, this is a strong result, particularly when considering that Roblox is not a particularly demanding title and the ranking reflects performance across all tested games.

The ranking becomes more impressive when contextualized by the individual components' percentiles. The CPU sits at the 72nd percentile, and the GPU at the 71st percentile, but the combined result in Roblox is slightly lower than either component's individual standing. This suggests that Roblox's engine may not fully utilize the capabilities of this hardware, potentially due to engine-level frame rate limits or inefficient multi-threading. The fact that the combo still achieves 252 FPS at 1080p Ultra indicates that the ranking is not indicative of poor performance but rather reflects that many other combos with higher-end parts achieve even higher frame rates in this title.

The measured FPS data shows consistent scaling across resolutions, with the combo losing approximately 28% of its 1080p Ultra performance when moving to 1440p Ultra (252 to 168 FPS), and another 43% when moving to 4K Ultra (168 to 95 FPS). This scaling is typical for a GPU-bound scenario, confirming that the RX 6750 XT is the primary determinant of frame rates in Roblox at higher resolutions. At 1080p, the CPU's single-thread performance becomes more relevant, but the i5-12400's 3DMark single-thread score of 910 and PassMark single-thread score of 3456 indicate it has ample headroom to keep up with the GPU's output.

FAQ

Q: Can this combo run Roblox at 4K with high settings?

A: Yes, the measured data shows an average of 117 FPS at 3840x2160 with High settings. At 4K Ultra, the average drops to 95 FPS, which remains playable.

Q: What is the highest frame rate achievable with this hardware?

A: The maximum average FPS recorded is 387 FPS at 1920x1080 with Low settings. The highest single measurement in the data is 405 FPS, observed at 1080p Medium as the maximum FPS.

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

A: This pairing is ranked 1673 out of 3711 total combos in the database for Roblox, placing it slightly above the median of all tested systems.

Q: Is the CPU or GPU more important for Roblox performance at 1440p?

A: The data shows the GPU is the primary factor at 1440p, with the combo losing 28% of its 1080p Ultra average when moving to 1440p Ultra. The CPU's single-thread score of 910 in 3DMark suggests it has sufficient headroom at this resolution.

Q: What is the minimum FPS recorded in the measured data?

A: The lowest minimum FPS recorded is 113 FPS, which occurs at 3840x2160 with Medium settings. All other measured settings presets show minimums above 200 FPS.

Q: Does the 12 GB VRAM of the RX 6750 XT make a difference in Roblox?

A: While Roblox does not typically require large VRAM allocations, the 12 GB capacity ensures no memory-related stuttering occurs, as evidenced by the stable minimum FPS of 113 at 4K Medium.

Measured FPS Breakdown

The measured frame rate data covers three resolutions and four settings presets, providing a comprehensive view of this combo's performance envelope in Roblox.

At 1920x1080, the results are uniformly high. The Low preset yields an average of 387 FPS, the Medium preset averages 352 FPS with a minimum of 299 FPS and a maximum of 405 FPS, the High preset averages 311 FPS, and the Ultra preset averages 252 FPS. The spread from Low to Ultra is 135 FPS, indicating that the GPU has substantial performance reserves even at the highest quality settings for this resolution.

Moving to 2560x1440, the performance remains strong but shows expected scaling. The Low preset averages 258 FPS, the Medium preset averages 235 FPS with a minimum of 200 FPS and a maximum of 270 FPS, the High preset averages 208 FPS, and the Ultra preset averages 168 FPS. The gap between Low and Ultra narrows to 90 FPS at this resolution, suggesting that the GPU is becoming more of a limiting factor as pixel count increases.

At 3840x2160, the performance drops more significantly, particularly at higher quality settings. The Low preset averages 146 FPS, the Medium preset averages 133 FPS with a minimum of 113 FPS and a maximum of 153 FPS, the High preset averages 117 FPS, and the Ultra preset averages 95 FPS. The delta between Low and Ultra is 51 FPS at this resolution, highlighting that the Ultra preset's additional effects are most costly at 4K. The minimum FPS of 113 at 4K Medium is the only sub-200 FPS minimum in the entire dataset, confirming that this combo remains highly playable even at the most demanding settings measured.