Roblox

Roblox is a massively popular sandbox title whose visual style can be deceptively demanding, and the data for this specific configuration—the Intel Core Ultra 7 155H paired with the NVIDIA GeForce RTX 4090—reveals a fascinating performance profile. This combination occupies the 628th spot out of 3,010 tested combos, placing it in the 79th percentile of all configurations tested for this game. The measured frame rates are exceptionally high across all settings, but the scaling patterns between resolutions and quality presets provide a clear picture of where the bottlenecks lie and how the hardware behaves under different loads.

Resolution Scaling

The FPS drop from 1080p to 4K is substantial but not as dramatic as one might expect from a less capable GPU, indicating that the RTX 4090 is doing the heavy lifting. At High settings, the average frame rate falls from 407 FPS at 1920x1080 to 271 FPS at 2560x1440, a reduction of 136 FPS, and then further down to 153 FPS at 3840x2160. This represents a 62.4% drop from 1080p to 4K, which is a significant penalty but still leaves the game running at a very playable level on a 4K display.

Looking at the Low preset, the scaling pattern is similar in absolute terms but different in percentage. The 1080p Low average is 505 FPS, which drops to 337 FPS at 1440p and then to 191 FPS at 4K. The drop from 1080p to 4K here is 62.2%, nearly identical to the High preset. This consistency across presets suggests that the resolution scaling is primarily a GPU-bound phenomenon, with the render resolution affecting the frame rate in a linear fashion regardless of the quality settings applied.

The Medium preset shows the most complete dataset, with minimum and maximum FPS values recorded. At 1080p Medium, the average is 460 FPS with a minimum of 391 FPS and a maximum of 529 FPS. Moving to 1440p Medium, the average drops to 307 FPS with a minimum of 261 FPS and a maximum of 353 FPS. At 4K Medium, the average is 174 FPS with a minimum of 148 FPS and a maximum of 200 FPS. The minimum frame rates at each resolution are roughly 85% of the average, indicating that there is some frame time variance but nothing that would cause noticeable stuttering.

The Ultra preset follows the same trend, with 330 FPS at 1080p, 220 FPS at 1440p, and 124 FPS at 4K. The difference between Low and Ultra at 4K is 67 FPS, which is a meaningful gap but less pronounced than the gap at 1080p, where the difference is 175 FPS. This narrowing gap at higher resolutions further confirms that the GPU is the limiting factor as resolution increases, while at lower resolutions, the CPU and other system components have more room to influence performance.

How This Combo Ranks

The combo rank of 628 out of 3,010 tested configurations places this system firmly in the upper echelon of Roblox performance. Being in the top 20.9% of all combos tested is a strong showing, but it is not the absolute top tier. The data suggests that there are many other combinations that achieve higher frame rates, likely due to the specific characteristics of Roblox's engine and how it utilizes hardware resources.

The ranking indicates that while this system is powerful, it is not necessarily the optimal pairing for this particular game. The RTX 4090 is an extremely capable GPU, but the Core Ultra 7 155H is a mobile processor with a 28 W TDP, which may limit performance in CPU-bound scenarios. Roblox is known to be sensitive to single-thread performance, and the 155H's boost clock of 4.80 GHz is respectable but may not match the top desktop processors in raw single-core throughput.

Comparing this combo to others in the database, the data shows that there are 2,382 configurations that rank higher, meaning they deliver higher average frame rates in Roblox. This could be due to a variety of factors, including faster CPUs, different GPU configurations, or even system memory configurations. However, it is important to note that a rank of 628 still represents an excellent experience, with the lowest measured average FPS being 124 at 4K Ultra, which is well above the threshold for smooth gameplay.

CPU Role

The Intel Core Ultra 7 155H is a 16-core, 22-thread processor based on the Meteor Lake architecture, manufactured on Intel's 7 nm process node. It has a base clock of 3.80 GHz and a boost clock of 4.80 GHz, with a 24 MB shared L3 cache. The processor's benchmark scores show strong multi-threaded performance, with a Cinebench R23 multi-core score of 15,028 and a single-core score of 1,743. Its PassMark single-thread score is 3,468, which places it in the 83rd percentile of all CPUs tested.

In the context of Roblox, the CPU's role is primarily to handle game logic, physics, and script execution, which are often single-threaded or lightly threaded workloads. The 155H's single-core performance is solid, but not exceptional, with a Cinebench R15 single-core score of 255. The data suggests that at lower resolutions, where the GPU is not fully saturated, the CPU can become a limiting factor. This is evident in the 1080p Low preset, where the average FPS of 505 is significantly higher than at 4K, but still lower than what the GPU alone might be capable of delivering.

The processor's nearest rivals in the benchmark database include the Intel Core i5-14600T, which scores 32,707 on average, and the AMD Ryzen AI 7 PRO 360, which scores 32,662. The 155H's average benchmark score of 32,697 puts it within 0.1% of these rivals, indicating that its overall compute performance is competitive. However, Roblox's specific workload may favor processors with higher single-core clocks, and the 155H's 4.80 GHz boost clock is a key figure in this regard. The 16 cores and 22 threads provide ample headroom for background tasks and any multi-threaded aspects of the game, but the primary determinant of frame rate in Roblox is likely the single-core performance.

Measured FPS Breakdown

The measured FPS data provides a comprehensive view of performance across three resolutions and four quality settings. At 1920x1080, the Low preset delivers an average of 505 FPS, which is the highest frame rate recorded for this configuration. The Medium preset averages 460 FPS, High averages 407 FPS, and Ultra averages 330 FPS. The spread between Low and Ultra at 1080p is 175 FPS, representing a 34.7% reduction in performance when moving to the highest quality settings.

At 2560x1440, the frame rates remain very high but show a more pronounced drop. The Low preset averages 337 FPS, Medium averages 307 FPS, High averages 271 FPS, and Ultra averages 220 FPS. The difference between Low and Ultra at this resolution is 117 FPS, which is a 34.7% reduction, consistent with the percentage drop seen at 1080p. This suggests that the performance scaling between presets is uniform across resolutions, with each preset tier costing roughly the same percentage of performance.

At 3840x2160, the frame rates are still impressive but begin to approach more typical gaming levels. The Low preset averages 191 FPS, Medium averages 174 FPS, High averages 153 FPS, and Ultra averages 124 FPS. The drop from Low to Ultra at 4K is 67 FPS, a 35.1% reduction, which is again consistent with the other resolutions. The minimum FPS recorded for the Medium preset at 4K is 148 FPS, and the maximum is 200 FPS, showing a range of 52 FPS. This variance is similar to the 1080p Medium range of 138 FPS, indicating that the frame pacing remains stable even as resolution increases.

GPU Role

The NVIDIA GeForce RTX 4090 is a flagship GPU based on the Ada Lovelace architecture, built on a 5 nm process node at TSMC. It features 16,384 shading units, 512 texture mapping units, and 176 raster operation units, with 128 ray tracing cores and 512 tensor cores. The GPU has a base clock of 2235 MHz and a boost clock of 2520 MHz, with 24 GB of GDDR6X memory on a 384-bit bus, providing a bandwidth of 1.01 TB/s. Its PassMark G3D score is 38,194, placing it in the 88th percentile of all GPUs tested.

In Roblox, the GPU's role is to render the game's visuals, including the blocky environments and character models. The RTX 4090 is massively overqualified for this task, as evidenced by the extremely high frame rates even at 4K Ultra settings. The data shows that the GPU is the primary bottleneck at 4K, where the frame rates drop to 124 FPS at Ultra, but this is still an excellent result for a game that is not known for pushing graphical boundaries.

The GPU's memory configuration is also worth noting. With 24 GB of GDDR6X memory, the RTX 4090 has more than enough VRAM for Roblox at any resolution, and the 1.01 TB/s bandwidth ensures that texture streaming and memory access are never a limiting factor. The GPU's compute capabilities, including its 82.58 TFLOPS of FP32 performance, are far beyond what Roblox requires, but they contribute to the consistently high frame rates observed across all settings.

The nearest rivals for the RTX 4090 in the benchmark database include the Intel Arc Pro A60, which scores 60,326 on average, and the AMD Radeon Pro Vega 48, which scores 60,140. The RTX 4090's average benchmark score of 60,347 is within 0.3% of these rivals, which is surprising given the massive difference in raw specifications. This indicates that the benchmark database's average score may be influenced by other factors, but in Roblox specifically, the RTX 4090's performance is clearly superior.

Settings Recommendations

Based on the measured FPS data, the optimal settings for this configuration depend on the user's display resolution and refresh rate. At 1920x1080, all presets deliver frame rates well above 300 FPS, with the Ultra preset still achieving 330 FPS. For a standard 1080p 144 Hz or 240 Hz monitor, the Ultra preset is the best choice, as it provides the highest visual quality without sacrificing smoothness. The High preset at 407 FPS is also excellent for users with 360 Hz monitors who prioritize maximum frame rates.

At 2560x1440, the Ultra preset averages 220 FPS, which is sufficient for most high-refresh-rate monitors. The High preset at 271 FPS offers a better balance for users with 240 Hz displays, providing a comfortable margin above the refresh rate. The Medium preset at 307 FPS is the best option for users with 300 Hz monitors, as it still delivers excellent visual quality while maximizing frame rate potential.

At 3840x2160, the choice becomes more nuanced. The Ultra preset averages 124 FPS, which is just above the 120 Hz threshold and provides the best visual fidelity. The High preset at 153 FPS is a better option for users with 144 Hz 4K monitors, as it provides a more comfortable margin above the refresh rate. The Medium preset at 174 FPS is ideal for 165 Hz 4K displays, offering a good compromise between quality and performance. For users with 240 Hz 4K monitors, the Low preset at 191 FPS is the only option that approaches the refresh rate, but it sacrifices significant visual quality.

In general, the data suggests that the High or Ultra presets are the best choices for most users, as they provide the best visual experience while still maintaining high frame rates. The Medium preset is a good fallback for users with very high refresh rate displays, and the Low preset should be reserved for competitive play where maximum frame rate is paramount.

FAQ

Q: What is the highest average FPS recorded for this configuration?

A: The highest average FPS is 505, achieved at 1920x1080 with the Low preset.

Q: How does the combination rank compared to other tested configurations?

A: This combo ranks 628th out of 3,010 tested combos for Roblox, placing it in the top 20.9% of all configurations.

Q: What is the lowest average FPS recorded, and under what conditions?

A: The lowest average FPS is 124, recorded at 3840x2160 with the Ultra preset.

Q: Does the CPU or GPU act as the limiting factor at 1080p?

A: At 1080p, the CPU is more likely to be the limiting factor, as the frame rates are extremely high and the GPU has ample headroom. The Intel Core Ultra 7 155H's single-core performance of 3,468 in PassMark plays a significant role here.

Q: What is the difference in average FPS between Low and Ultra settings at 1440p?

A: At 2560x1440, the Low preset averages 337 FPS, while the Ultra preset averages 220 FPS, a difference of 117 FPS.

Q: Is the RTX 4090's 24 GB of VRAM sufficient for Roblox?

A: Yes, the 24 GB of GDDR6X memory is more than sufficient for Roblox at any resolution, and the 1.01 TB/s bandwidth ensures no memory-related bottlenecks.