Roblox

The Intel Core i5-11400F paired with the AMD Radeon RX 5700 XT delivers exceptionally high frame rates in Roblox, with the data showing a clear progression from 4K down to 1080p. At 4K Ultra, the combination averages 77 FPS, which rises to 91 FPS on High settings, 104.3 FPS on Medium, and 116.1 FPS on Low. Moving to 2560x1440, the frame rates scale significantly, with Ultra producing 129.9 FPS, High reaching 163 FPS, Medium hitting 182.1 FPS, and Low topping out at 205.1 FPS. At 1920x1080, the results become exceptionally high, with Ultra at 201 FPS, High at 241.9 FPS, Medium at 273.6 FPS, and Low reaching 304.5 FPS. The performance scaling between resolutions indicates that the GPU remains the primary limiting factor even at lower settings, though the CPU’s strong single-threaded performance—evident in its 3dmark_single_thread score of 868 and passmark_single_thread score of 2981—ensures that frame rates stay well above typical display refresh rates across all tested configurations.

Resolution Scaling

The measured FPS data reveals how the system’s bottleneck shifts as resolution changes. Between 1080p and 1440p, the average FPS drop across all settings is roughly 30-35%, which is consistent with a GPU-bound scenario where the RX 5700 XT’s 8 GB of GDDR6 memory and 448.0 GB/s bandwidth are being utilized effectively. However, the scaling from 1440p to 4K is steeper, with High settings dropping from 163 FPS to 91 FPS—a 44% reduction—while Ultra settings fall from 129.9 FPS to 77 FPS, a 41% reduction. This disproportionate drop at 4K suggests that the GPU’s compute resources, particularly its 9.754 TFLOPS FP32 throughput, become the limiting factor as pixel count increases.

At 1080p, the frame rates are so high—exceeding 300 FPS on Low settings—that the CPU’s 6 cores and 12 threads begin to play a more significant role. The i5-11400F’s boost clock of 4.40 GHz and its 12 MB of shared L3 cache help maintain these elevated frame rates, but the data shows diminishing returns when comparing Low to Ultra settings at this resolution. Specifically, the gap between Low (304.5 FPS) and Ultra (201 FPS) at 1080p is 103.5 FPS, whereas at 4K the same settings gap is only 39.1 FPS. This compression at higher resolutions confirms that the RX 5700 XT is the dominant constraint, as its pixel rate of 121.9 GPixel/s and texture rate of 304.8 GTexel/s are more heavily taxed as resolution increases.

The benchmark results indicate that the system is never truly CPU-limited in this game, even at 1080p. The i5-11400F’s percentile rank of 75 among all CPUs, combined with its cinebench_r23_singlecore score of 2029, provides ample headroom for Roblox’s typically light-threaded workloads. However, the fact that 4K Ultra still maintains 77 FPS suggests that users with high-refresh-rate 4K displays will need to lower settings to fully utilize their monitor’s capabilities, while 1440p users can comfortably run High or Ultra settings and remain above 130 FPS.

FAQ

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

A: The measured average FPS at 1920x1080 with High settings is 241.9 FPS, which is well above the refresh rate of most gaming monitors and indicates no practical limitation for competitive or casual play.

Q: How does the RX 5700 XT compare to its nearest rival in GPU benchmarks?

A: The RX 5700 XT has an average benchmark score of 24731, which places it within 0.1% of the NVIDIA RTX A5000 Mobile (24763) and 0.3% ahead of the Intel Arc A350M (24647). This puts it in a competitive position among similar-tier GPUs.

Q: Is the i5-11400F a bottleneck for this GPU in Roblox?

A: No, the data does not indicate CPU bottlenecking. At 1080p Low, the system achieves 304.5 FPS, and the CPU’s multi-threaded passmark score of 16908 and 3dmark_max_threads score of 5652 show it can handle the game’s demands without limiting the GPU’s output.

Q: What is the frame rate difference between Ultra and Low settings at 4K?

A: At 3840x2160, Ultra averages 77 FPS while Low averages 116.1 FPS, representing a 39.1 FPS difference. This shows that even at 4K, lowering settings provides a substantial performance boost.

Q: How does this combo rank among all tested system configurations for Roblox?

A: The combination of the Intel Core i5-11400F and AMD Radeon RX 5700 XT ranks 1372 out of 1800 tested combos in Roblox, placing it in the upper portion of the database but not at the very top tier.

Q: What is the GPU’s memory bandwidth and how does it affect 4K performance?

A: The RX 5700 XT has a memory bandwidth of 448.0 GB/s across a 256-bit bus. This bandwidth is sufficient to support the 77 FPS average at 4K Ultra, but the data suggests that at higher resolutions, the 8 GB VRAM capacity and bandwidth become more critical than at 1080p.

GPU Role

The AMD Radeon RX 5700 XT plays a central role in determining the system’s performance ceiling in Roblox, particularly at higher resolutions. The GPU’s base clock of 1605 MHz and boost clock of 1905 MHz, with a game clock of 1755 MHz, provide the raw processing power needed to sustain the high frame rates observed in the measured data. Its 2560 shading units, 160 texture mapping units, and 64 ROPs work together to handle the game’s rendering demands, with the pixel rate of 121.9 GPixel/s and texture rate of 304.8 GTexel/s being key specifications that scale directly with resolution.

The GPU’s 8 GB of GDDR6 memory operating at 1750 MHz (14 Gbps effective) delivers a bandwidth of 448.0 GB/s, which becomes increasingly important as resolution increases. At 4K Ultra, the system maintains 77 FPS, and while this is a respectable result, the data shows that the GPU is clearly the limiting component compared to lower resolutions. The 256-bit memory bus width ensures that the VRAM can feed data to the compute units efficiently, but the benchmarks suggest that the GPU’s compute throughput, measured at 9.754 TFLOPS FP32, is what ultimately caps performance at 4K.

Notably, the GPU’s benchmark scores reinforce its position in the market. Its passmark_g3d score of 16277 and 3dmark_steel_nomad_dx12 score of 2134 indicate solid DirectX 12 performance, which is relevant for a game like Roblox that supports modern graphics APIs. The GPU’s percentile rank of 68 among all GPUs places it above the median, and its nearest rivals—the RTX A5000 Mobile and Arc A350M—show that it competes closely with mobile workstation and entry-level discrete GPUs. However, in Roblox specifically, the combination with the i5-11400F achieves frame rates that far exceed what these rival scores might suggest, indicating that the game’s rendering workload is well-matched to the RX 5700 XT’s architecture.

Measured FPS Breakdown

The measured FPS data provides a comprehensive view of how the system performs across three resolutions and four quality settings. At 1920x1080, the frame rates are exceptionally high across the board: Low settings produce 304.5 FPS, Medium delivers 273.6 FPS, High reaches 241.9 FPS, and Ultra still maintains 201 FPS. These numbers indicate that at 1080p, the system has substantial headroom, and even the most demanding settings remain comfortably above 200 FPS, which is ideal for high-refresh-rate monitors. The step from Low to Medium reduces performance by 30.9 FPS, from Medium to High by 31.7 FPS, and from High to Ultra by 40.9 FPS, showing a progressive and predictable scaling curve.

Moving to 2560x1440, the frame rates remain high but begin to show more variation between settings. Low settings average 205.1 FPS, Medium hits 182.1 FPS, High reaches 163 FPS, and Ultra drops to 129.9 FPS. The performance deltas here are smaller in absolute terms but proportional, with the gap between Low and Ultra being 75.2 FPS. This resolution is often considered the sweet spot for high-refresh-rate gaming, and the data shows that even Ultra settings provide a playable 129.9 FPS, while High settings at 163 FPS would be suitable for 144Hz displays.

At 3840x2160, the performance drops significantly, reflecting the increased GPU load. Low settings average 116.1 FPS, Medium delivers 104.3 FPS, High reaches 91 FPS, and Ultra falls to 77 FPS. The scaling from Low to Ultra at 4K is 39.1 FPS, which is the smallest absolute range across all resolutions tested. This compression indicates that the GPU is nearing its limits at 4K, and users will need to make compromises between visual quality and frame rate. Notably, even at 4K Ultra, the system maintains a playable 77 FPS, which is above the 60 FPS threshold commonly used as a baseline for smooth gameplay, but below what would be ideal for a 4K 120Hz display.

Settings Recommendations

Based on the measured FPS data, the optimal settings for this system depend heavily on the user’s display resolution and refresh rate. At 1920x1080, the data shows that Ultra settings at 201 FPS provide the best visual experience without sacrificing playability, as the frame rate remains well above any standard monitor refresh rate up to 165Hz. For users with 240Hz displays, High settings at 241.9 FPS would be the recommended choice, as it offers a significant boost over Ultra while still maintaining near-maximum visual fidelity. The jump from High to Ultra at 1080p costs 40.9 FPS, which may be noticeable on very high refresh rate displays, but the visual quality improvement could justify this trade-off for single-player experiences.

At 2560x1440, High settings at 163 FPS represent the best balance between visual quality and performance for most users, particularly those with 144Hz monitors. Ultra settings at 129.9 FPS are still viable and would be suitable for 120Hz displays, but the 33.1 FPS difference between High and Ultra suggests that High is the more sensible choice unless the user prioritizes maximum visual fidelity. For competitive play where frame rates matter more than visuals, Medium settings at 182.1 FPS or Low settings at 205.1 FPS offer additional headroom, but the data shows that High is sufficient for most modern displays.

At 3840x2160, the recommendations shift due to the significant performance drop. Medium settings at 104.3 FPS provide the best experience for 4K displays with 120Hz refresh rates, while High settings at 91 FPS are suitable for standard 60Hz displays and offer better visual quality. Ultra at 77 FPS is playable but leaves little margin for frame time spikes, so it is only recommended for users who prioritize visuals above all else. Low settings at 116.1 FPS would be the choice for users with 4K 120Hz displays who want to maximize smoothness, though the visual compromise is substantial. Overall, the data indicates that High settings at 1080p and 1440p, and Medium settings at 4K, provide the most balanced experience for this hardware combination.