Roblox

Roblox is a sandbox title that scales across a very wide range of hardware, and the measured data for the Intel Core i5-9400 with the NVIDIA GeForce RTX 2070 SUPER shows a combination that delivers high frame rates at every tested resolution. The system sits at rank 1079 out of 1800 tested combos in this game, placing it in the upper portion of the performance distribution. The benchmark results indicate that this pairing is capable of pushing well past standard display refresh rates at 1080p, while still maintaining smooth gameplay at 4K on higher presets. The following analysis breaks down the CPU and GPU roles, scaling behavior, and settings recommendations based exclusively on the measured FPS data provided.

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 from the Coffee Lake Refresh generation, with a base clock of 2.90 GHz and a boost clock of 4.10 GHz. It uses a 14 nm process node and has a 9 MB shared L3 cache. The CPU's average benchmark score is 2305, which places it at the 50th percentile among all CPUs. Its nearest rivals in synthetic benchmarks are the Intel Core i3-10305 (score 2300, deltaPct 0.2), Intel Core i3-1125G4 (score 2299, deltaPct 0.2), Intel Xeon E-2134 (score 2295, deltaPct 0.4), and Intel Core i7-8809G (score 2319, deltaPct -0.6). The i5-9400 sits nearly exactly between these alternatives, with a negligible 0.2% gap to the i3-10305 and a 0.6% deficit to the i7-8809G.

In Roblox, the CPU's impact is visible primarily at lower resolutions where frame rates become very high. At 1080p with Low settings, the system reaches 340.2 FPS, and at 1080p Medium it hits 309.9 FPS. These numbers are substantially higher than the 4K results, indicating that the CPU is not the primary bottleneck at higher resolutions. The 6-core configuration without hyper-threading is sufficient for this game's workload, as evidenced by the fact that the frame rate scales smoothly from Low to Ultra at each resolution. The CPU's single-core performance, reflected in a Cinebench R23 single-core score of 1125, is adequate for Roblox's physics and scripting tasks, which typically rely on fewer threads. The data shows that the i5-9400 can sustain over 270 FPS at 1080p High, which is well beyond the refresh rate of most monitors, meaning the CPU is delivering more than enough headroom for this title.

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

The NVIDIA GeForce RTX 2070 SUPER is based on the Turing architecture, built on a 12 nm process at TSMC, with a chip size of 545 mm² and 13,600 million transistors. It features 8 GB of GDDR6 memory on a 256-bit bus, providing 448.0 GB/s of bandwidth. The GPU has a base clock of 1605 MHz and a boost clock of 1770 MHz, with memory running at 1750 MHz (14 Gbps effective). The card includes 2560 shading units, 160 TMUs, 64 ROPs, 40 RT cores, and 320 tensor cores, delivering 9.062 TFLOPS of FP32 performance. Its average benchmark score is 22206, placing it at the 65th percentile among all GPUs.

Compared to its nearest rivals, the RTX 2070 SUPER is 0.5% behind the NVIDIA RTX A400 (score 22307), 0.9% ahead of the NVIDIA GeForce GTX TITAN Z (score 22006), 2.3% behind the NVIDIA GeForce RTX 4060 Mobile (score 22729), and 2.5% ahead of the AMD Radeon RX 5700 (score 21670). The GPU's role in Roblox is most evident at 4K resolution, where the frame rate drops from 340.2 FPS at 1080p Low to 129.8 FPS at 4K Low, a reduction that aligns with the increased pixel workload. At 4K Ultra, the system still manages 85 FPS, which is playable but shows the GPU being pushed harder. The 8 GB VRAM is not a limiting factor in this game, as the measured data does not indicate any memory-related performance cliffs at higher resolutions. The GPU's strong pixel rate of 113.3 GPixel/s and texture rate of 283.2 GTexel/s support the high frame rates observed, particularly at 1440p where the system delivers 183.7 FPS on High settings.

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

The measured FPS data shows a clear scaling pattern across resolutions. At 1080p Low, the system achieves 340.2 FPS. Moving to 1440p Low, the frame rate drops to 228.2 FPS, a reduction of 32.9%. At 4K Low, the frame rate falls to 129.8 FPS, which is 61.8% lower than the 1080p result. This scaling behavior is consistent with the GPU becoming an increasingly significant factor as resolution rises. At 1080p, the CPU has more headroom, allowing the GPU to render frames at very high rates. At 4K, the GPU's workload increases dramatically, and the frame rate reflects that pressure.

The same pattern holds for Ultra settings. At 1080p Ultra, the system runs at 223.9 FPS. At 1440p Ultra, it drops to 149.8 FPS (a 33.1% decrease), and at 4K Ultra, it falls to 85 FPS (a 62.0% decrease from 1080p). The consistency of these percentage drops across Low and Ultra settings suggests that the limiting component is the GPU at higher resolutions, while the CPU remains capable of feeding the GPU at lower resolutions. The fact that the 4K Ultra result of 85 FPS is still above 60 FPS indicates that the RTX 2070 SUPER has enough compute power for this game at 4K, but the scaling data shows that users seeking maximum frame rates should prefer 1440p, where the system exceeds 149 FPS on all presets. The data does not include minimum or maximum FPS values, so the analysis relies solely on average frame rates, but the trends are consistent across all settings.

Settings Recommendations — which preset gives the best experience per the measured rows

Based on the measured FPS rows, the Medium preset offers the best balance between visual quality and performance across all resolutions. At 1080p Medium, the system delivers 309.9 FPS, which is only 8.9% lower than Low (340.2 FPS) but provides a significantly better visual experience than Low. At 1440p Medium, the frame rate is 206.5 FPS, still well above the 144 Hz refresh rate that many monitors support. At 4K Medium, the system achieves 119.2 FPS, which is a comfortable margin above 60 FPS and only 8.2% lower than the 129.8 FPS seen at Low settings.

The High preset also performs well, with 271.2 FPS at 1080p, 183.7 FPS at 1440p, and 104.2 FPS at 4K. However, the jump from Medium to High costs approximately 10-13% of frame rate at each resolution, while the visual improvements in Roblox's blocky aesthetic may not be as pronounced as in more graphically intensive titles. The Ultra preset is the most demanding, with 223.9 FPS at 1080p, 149.8 FPS at 1440p, and 85 FPS at 4K. At 4K Ultra, the frame rate drops below 90 FPS, which may be noticeable on high-refresh displays, but it remains playable. For users with 1080p or 1440p monitors, the Medium preset provides the best experience per the measured rows, as it keeps frame rates above 200 FPS at 1440p while offering better visuals than Low. At 4K, Medium is the recommended choice because it stays above 115 FPS, whereas High drops to 104.2 FPS and Ultra falls to 85 FPS.

FAQ

Q: What is the average FPS at 1080p with High settings?

A: The system achieves 271.2 FPS at 1920x1080 with High settings, which is well above typical monitor refresh rates.

Q: How does the 4K Ultra performance compare to 1080p Low?

A: At 4K Ultra, the average FPS is 85, while at 1080p Low it is 340.2, representing a 75.0% decrease in frame rate.

Q: Is the RTX 2070 SUPER faster than the AMD Radeon RX 5700?

A: Yes, the RTX 2070 SUPER has an average benchmark score of 22206, which is 2.5% higher than the RX 5700's score of 21670.

Q: What is the highest measured FPS in the entire dataset?

A: The highest measured FPS is 340.2, achieved at 1920x1080 with Low settings.

Q: Does the CPU outperform the Intel Core i7-8809G?

A: No, the i5-9400 has an average score of 2305, which is 0.6% lower than the i7-8809G's score of 2319.

Q: What frame rate can I expect at 1440p with Medium settings?

A: The measured average FPS at 2560x1440 with Medium settings is 206.5, providing a smooth experience for high-refresh monitors.

Measured FPS Breakdown — resolution by resolution, settings by settings, exact numbers

1920x1080 (1080p)

• Low: 340.2 FPS
• Medium: 309.9 FPS
• High: 271.2 FPS
• Ultra: 223.9 FPS

At 1080p, the system delivers extremely high frame rates across all presets. The gap between Low and Ultra is 116.3 FPS, with Ultra still maintaining 223.9 FPS, which is sufficient for any current display. The scaling from Low to Medium costs 30.3 FPS, from Medium to High costs 38.7 FPS, and from High to Ultra costs 47.3 FPS, showing a consistent performance penalty as settings increase.

2560x1440 (1440p)

• Low: 228.2 FPS
• Medium: 206.5 FPS
• High: 183.7 FPS
• Ultra: 149.8 FPS

At 1440p, the frame rates remain high, with all presets exceeding 149 FPS. The difference between Low and Ultra is 78.4 FPS. The transitions are 21.7 FPS from Low to Medium, 22.8 FPS from Medium to High, and 33.9 FPS from High to Ultra, indicating that the Ultra preset imposes a larger penalty relative to the previous steps.

3840x2160 (4K)

• Low: 129.8 FPS
• Medium: 119.2 FPS
• High: 104.2 FPS
• Ultra: 85 FPS

At 4K, the system remains playable on all settings, with Ultra just above 60 FPS at 85 FPS. The scaling from Low to Medium costs 10.6 FPS, from Medium to High costs 15.0 FPS, and from High to Ultra costs 19.2 FPS. This progressive increase in the performance gap between settings is characteristic of GPU-bound scenarios at higher resolutions. Compared to 1080p, the 4K Low result of 129.8 FPS is 61.8% lower, while the 4K Ultra result of 85 FPS is 62.0% lower, confirming that the GPU is the dominant limiting factor at 4K.