Roblox

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

The Intel Core i5-9400 is a 6-core, 6-thread processor built on the Coffee Lake architecture, fabricated on Intel's 14 nm process node. It operates with a 2.90 GHz base clock and can boost up to 4.10 GHz, which is relevant because Roblox's physics and scripting workloads tend to respond well to single-thread performance. In the benchmark data, the i5-9400 posts a Geekbench single-core score of 1389 and a multi-core score of 5141, while Cinebench R23 results show 935 points single-core and 6629 points multi-core.

The processor's 9 MB of shared L3 cache, paired with 64 KB L1 and 256 KB L2 per core, provides sufficient data locality for the game's block-based world generation and player-controlled physics interactions. The dual-channel DDR4 memory interface offers 42.7 GB/s of bandwidth, which is not a bottleneck in the measured frame rates given that Roblox does not heavily stress memory throughput.

Compared to its nearest rivals in the CPU benchmark database, the i5-9400 sits within a tight performance cluster. It trails the Intel Core i3-10305 by 0.4% in average benchmark score, comes in 0.2% behind the Intel Core i7-1068NG7, and edges out the Intel Core i7-10710U by 0.3% and the AMD Ryzen 5 PRO 1500 by 0.4%. This places the i5-9400 at the 47th percentile among all tested CPUs, indicating a mid-pack standing relative to the broader processor landscape.

For Roblox specifically, the CPU's role becomes more apparent at lower resolutions where frame rates are highest. At 1080p Low settings, the combo reaches 217 FPS average, suggesting that the CPU can keep up with the game's logic threads even when the GPU is not heavily tasked. The 6-core configuration without hyper-threading is adequate for Roblox's typical thread usage, which rarely scales beyond a handful of cores. The boost clock of 4.10 GHz is the more critical factor, as the game's main simulation loop benefits from higher single-core throughput.

# GPU Role — VRAM, clocks, and how they relate to this game's results

The NVIDIA GeForce RTX 3050 4 GB is an Ampere-architecture GPU fabricated on Samsung's 8 nm process, featuring 2048 shading units, 64 texture mapping units, and 32 raster output units. It has 16 ray tracing cores and 64 tensor cores, though these specialized units see limited use in Roblox's rendering pipeline. The GPU operates at a base clock of 1545 MHz with a boost clock of 1740 MHz, while its 4 GB of GDDR6 memory runs at 1500 MHz with a 12 Gbps effective data rate across a 128-bit bus, yielding 192.0 GB/s of bandwidth.

The 4 GB VRAM capacity is a defining characteristic for this GPU. Roblox's texture streaming and environment detail levels at higher settings can approach the 4 GB limit, particularly at 4K resolution. However, the measured frame rates suggest that even at 3840x2160 Ultra settings, the game maintains a playable 54 FPS average, indicating that the VRAM allocation is sufficient for this title's current graphical demands. The GPU's 7.127 TFLOPS of FP32 compute power and 55.68 GPixel/s pixel fill rate provide ample raw throughput for Roblox's relatively simple geometry and shading requirements.

The RTX 3050 4 GB sits at the 50th percentile among all tested GPUs, placing it exactly in the middle of the performance distribution. Its 192.0 GB/s memory bandwidth is modest by modern standards, but Roblox's stylized visuals do not require large texture fetches or complex post-processing chains that would saturate this bandwidth. The GPU's dual-slot cooling design and 90 W TDP suggest that it operates within a comfortable thermal envelope, allowing sustained boost clocks during extended gaming sessions.

In the context of Roblox, the GPU becomes the limiting factor primarily at 4K resolution. The frame rate progression from Low to Ultra settings at 3840x2160 shows a clear drop from 82 FPS to 54 FPS, a 34% reduction that correlates with increased pixel shading and memory pressure. At 1080p, the GPU has more headroom, but the CPU still manages to keep frame rates above 140 FPS at all settings, indicating a balanced pairing where neither component is severely overmatched in this particular game.

# Resolution Scaling — how FPS drops from 1080p to 4K and what it says about the limiting component

Examining the measured data across resolutions reveals a consistent pattern of frame rate scaling that points to the GPU as the primary constraint at higher resolutions. At 1080p Medium settings, the combo achieves 198 FPS average, while the same settings at 1440p produce 132 FPS, and 4K drops to 75 FPS. This represents a 33% reduction from 1080p to 1440p, and another 43% reduction from 1440p to 4K. The non-linear scaling is characteristic of GPU-bound scenarios, where pixel count increases quadratically with resolution.

For the High settings preset, the scaling follows a similar trajectory: 175 FPS at 1080p, 117 FPS at 1440p, and 66 FPS at 4K. The percentage drops are 33% and 44% respectively, which aligns closely with the Medium preset's behavior. This consistency suggests that the relative performance ceiling is set by the GPU's fill rate and memory bandwidth, rather than by any specific settings combination.

Interestingly, the Low preset shows the smallest relative drop from 1080p to 4K: 217 FPS down to 82 FPS, a 62% reduction. This larger proportional decline at low settings indicates that when the GPU's shading workload is minimized, the CPU becomes relatively more involved, and the i5-9400's single-thread performance limits the upper frame rate ceiling. The 217 FPS at 1080p Low represents near the CPU's practical limit for Roblox's simulation loop.

The Ultra preset exhibits the most dramatic scaling, falling from 142 FPS at 1080p to 95 FPS at 1440p and then to 54 FPS at 4K. The 1440p to 4K drop of 43% is consistent with the other presets, but the 1080p to 1440p reduction of 33% is slightly steeper than the 33% observed in Medium and High, suggesting that the additional GPU workload from Ultra settings begins to strain the RTX 3050 even at 1440p.

The min and max FPS data available for Medium settings paint a fuller picture of frame time stability. At 1080p Medium, the range spans from 168 FPS minimum to 227 FPS maximum, with an average of 198 FPS. At 1440p Medium, the range narrows to 112 FPS minimum and 152 FPS maximum, averaging 132 FPS. At 4K Medium, the range is 63 FPS to 86 FPS, averaging 75 FPS. The tightening range at higher resolutions indicates that the GPU becomes more consistently saturated, reducing the variance that comes from CPU-side frame pacing variations.

# FAQ

Q: Can this combo maintain 60 FPS at 4K Ultra settings in Roblox?

A: No. The measured average frame rate at 3840x2160 Ultra settings is 54 FPS, which falls below the 60 FPS threshold. However, at 4K Medium settings, the average rises to 75 FPS, providing comfortable headroom above 60 FPS.

Q: What is the best resolution for this combo to achieve 144 FPS consistently?

A: At 1440p Medium settings, the average FPS is 132, which does not meet 144 FPS. At 1080p Medium, the average is 198 FPS, and at 1080p High it is 175 FPS, both of which exceed 144 FPS. The only preset that reaches 144 FPS at 1440p is Low, with an average of 145 FPS.

Q: How does the i5-9400 compare to its nearest CPU rivals in average benchmark score?

A: The i5-9400 has an average benchmark score of 2254. It trails the Intel Core i3-10305 by 0.4% (2264 score), comes 0.2% behind the Intel Core i7-1068NG7 (2259 score), and leads the Intel Core i7-10710U by 0.3% (2248 score) and the AMD Ryzen 5 PRO 1500 by 0.4% (2246 score).

Q: Is the 4 GB VRAM on the RTX 3050 sufficient for Roblox at 4K?

A: Based on the measured performance, yes. The combo achieves 66 FPS at 4K High and 54 FPS at 4K Ultra, indicating that the 4 GB frame buffer is not causing a hard performance collapse. The 192.0 GB/s memory bandwidth is adequate for Roblox's texture streaming needs.

Q: What frame rate can I expect at 1080p with Medium settings?

A: The measured average is 198 FPS, with a minimum of 168 FPS and a maximum of 227 FPS. This provides a smooth experience on high refresh rate monitors, as the minimum stays above 165 FPS.

Q: Does the CPU or GPU limit performance at 1080p Low settings?

A: The 217 FPS average at 1080p Low is likely CPU-limited, as the i5-9400's single-core performance (935 points in Cinebench R23) becomes the bottleneck when the GPU's shading load is minimized. The GPU's 7.127 TFLOPS of compute is more than sufficient for Roblox's low-settings rendering.

# Measured FPS Breakdown

At 1920x1080, the combo delivers the following average frame rates across settings presets:

• Low: 217 FPS
• Medium: 198 FPS (min 168, max 227)
• High: 175 FPS
• Ultra: 142 FPS

The progression from Low to Ultra shows a 34.6% reduction in average FPS, with the largest single step occurring between High (175 FPS) and Ultra (142 FPS), an 18.9% drop. The Medium preset's minimum of 168 FPS ensures that frame times remain consistent even during demanding scenes.

At 2560x1440, the measured averages are:

• Low: 145 FPS
• Medium: 132 FPS (min 112, max 152)
• High: 117 FPS
• Ultra: 95 FPS

The 1440p results show a 34.5% reduction from Low to Ultra, nearly identical to the 1080p scaling. The Medium preset's minimum of 112 FPS sits comfortably above 60 FPS, making this a viable configuration for high refresh rate 1440p displays.

At 3840x2160, the averages are:

• Low: 82 FPS
• Medium: 75 FPS (min 63, max 86)
• High: 66 FPS
• Ultra: 54 FPS

The 4K results demonstrate a 34.1% drop from Low to Ultra, consistent with the other resolutions. Notably, the Medium preset's minimum of 63 FPS stays above 60 FPS, providing a stable experience for 4K gaming. The Ultra preset's 54 FPS average dips below the 60 FPS threshold but remains playable for less demanding titles.

# Settings Recommendations

Based on the measured data, the optimal settings preset depends on the target resolution and refresh rate. For 1080p displays with 144 Hz or higher refresh rates, the Medium preset offers the best balance between visual quality and performance. The 198 FPS average and 168 FPS minimum ensure that the display's refresh rate is consistently met, while the visual improvements over Low settings are noticeable in Roblox's environment detail and lighting.

At 1440p, gamers targeting 60 FPS have ample headroom with any preset, but those seeking higher refresh rates should consider the Low preset, which achieves 145 FPS average. The Medium preset at 132 FPS is also viable for 120 Hz displays, providing better visual fidelity while still maintaining frame rates above the refresh threshold. The High preset at 117 FPS offers a good middle ground for 100-144 Hz monitors, though the minimum frame rate was not measured for this preset.

For 4K displays, the Medium preset is the recommended choice. The 75 FPS average and 63 FPS minimum provide a consistently smooth experience above 60 FPS, while the visual quality improvement from Low to Medium is substantial. The High preset at 66 FPS is acceptable for 60 Hz displays but leaves less headroom for frame time spikes. The Ultra preset at 54 FPS falls below 60 FPS and should only be used if the user prioritizes maximum visual fidelity over frame rate stability.

The Medium preset consistently demonstrates the most balanced profile across all resolutions, with its measured minimum frame rates remaining within 15% of the average. This indicates that the Medium settings do not introduce pathological frame time spikes, making it the safest recommendation for users who cannot tolerate stuttering.

# How This Combo Ranks

The combination of the Intel Core i5-9400 and NVIDIA GeForce RTX 3050 4 GB ranks 3233 out of 3711 tested combos in Roblox, placing it in the lower 13th percentile of all system configurations. This ranking reflects the hardware's mid-generation status: the CPU was released in October 2018 and the GPU in January 2022, making both components somewhat dated relative to the current performance landscape.

The combo's ranking is influenced by the GPU's 50th percentile standing among all GPUs and the CPU's 47th percentile among all CPUs. When combined, these mid-pack components do not synergize to produce high-tier performance in Roblox, which is a game that can scale to very high frame rates on modern hardware. The 4 GB VRAM capacity of the RTX 3050 is a notable limitation that likely contributes to the lower ranking, as Roblox's texture streaming can benefit from larger frame buffers at high resolutions.

Despite the low overall rank, the measured performance remains playable across all tested configurations. The worst case scenario of 54 FPS at 4K Ultra is still above the minimum playable threshold, and the best case of 217 FPS at 1080p Low demonstrates that the combo can deliver high refresh rate experiences when settings are appropriately selected. The rank of 3233 out of 3711 indicates that while this combo is not competitive with top-tier systems, it provides a functional gaming experience for Roblox users who are willing to adjust settings based on their resolution priorities.