Roblox

Roblox is a sandbox title that scales across a wide range of hardware, and the pairing of the Intel Core i5-11400F with the AMD Radeon RX 7900 XT produces a dataset that reveals distinct bottlenecks depending on resolution and settings. The measured frames per second (FPS) range from 133 at 4K Ultra to 542 at 1080p Low, indicating a system with substantial headroom for high-refresh-rate displays at lower resolutions. This analysis walks through the CPU and GPU specifications in the FACT PACK, places the combo within the broader test pool, and interprets the measured FPS rows to determine where this configuration excels and where it leaves performance on the table.

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

The Intel Core i5-11400F is a 6-core, 12-thread processor based on the Rocket Lake architecture, built on Intel's 14 nm process node. Its base clock is 2.60 GHz with a boost clock of 4.40 GHz, and it carries 12 MB of shared L3 cache. The processor supports DDR4 memory in a dual-channel configuration, with a memory bandwidth of 51.2 GB/s. This is a desktop-class chip that launched in March 2021 with a 65 W TDP, and it has a benchmark percentile ranking of 71 among all CPUs tested in the database.

In the context of Roblox, the CPU's single-threaded performance is often the primary gate for physics and game logic. The data shows a 3dmark single-thread score of 868 and a Cinebench R23 single-core score of 2024, which positions the i5-11400F as a capable performer for this workload. The multi-threaded scores are also relevant: Cinebench R23 multi-core hits 14340, while Passmark's multithread test reports 16908. These numbers suggest that the processor can handle the game's background tasks without becoming a hard limiter, but the measured FPS at low settings and 1080p — peaking at 542 — indicate that the CPU is the component that sets the upper bound when the GPU has less work to do.

The processor's nearest rivals in the benchmark database include the AMD EPYC 7H12 (avg score 17120, deltaPct 0.3) and the Intel Core i5-12450H (avg score 17239, deltaPct -0.4). These deltas are tiny, meaning the i5-11400F is effectively on par with those chips in aggregate CPU tests. However, for a game like Roblox, the 2-thread score of 1691 from 3dmark is a more telling metric than the max-thread score of 5652, as the game rarely scales to 12 threads. The data indicates that when the RX 7900 XT is pushed to produce hundreds of frames per second, the CPU's single-thread and 2-thread performance becomes the deciding factor, which is why the 1080p Low result (542 FPS) is only about 2.6 times higher than the 4K Ultra result (133 FPS), despite the GPU having far less work at the lower resolution.

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

The AMD Radeon RX 7900 XT is a high-end graphics card from the Radeon RX 7000 series, built on the RDNA 3.0 architecture with a 5 nm process node. It features 20 GB of GDDR6 memory on a 320-bit bus, delivering a bandwidth of 800.0 GB/s. The GPU's boost clock is 2394 MHz, with a game clock of 2025 MHz and a base clock of 1387 MHz. The card has 5376 shading units, 336 texture mapping units, and 192 raster operation units, along with 84 ray tracing cores. Its FP32 performance is rated at 51.48 TFLOPS, and it supports DirectX 12 Ultimate, Vulkan 1.4, and OpenGL 4.6.

In Roblox, the GPU's role becomes more pronounced as resolution increases. At 4K Ultra, the measured average FPS drops to 133, which is a clear sign that the GPU is being heavily utilized. The card's memory capacity of 20 GB is far beyond what this game requires, but the data shows that the bottleneck shifts from the CPU at 1080p to the GPU at 4K. The GPU's Passmark G3D score of 29009 and its percentile rank of 55 among all GPUs indicate that it is a mid-to-high-tier performer in the database, which aligns with its measured results in this title.

Comparing to its nearest rivals, the RX 7900 XT has an average benchmark score of 13745, while the AMD Radeon 660M scores 13812 (deltaPct -0.5) and the NVIDIA RTX A2000 Mobile scores 13821 (deltaPct -0.5). The RX 9070 XT is slightly behind at 13543 (deltaPct 1.5). These small deltas suggest that the RX 7900 XT is not a class leader in synthetic tests, but the measured FPS in Roblox shows it is more than sufficient for 4K gaming, with the 4K Medium result of 186 FPS still well above typical monitor refresh rates.

How This Combo Ranks — use comboRankInGame vs other tested combos

The combination of the Intel Core i5-11400F and the AMD Radeon RX 7900 XT holds a rank of 743 out of 3711 tested combos in Roblox. This places the pairing in the top 20% of all configurations in the database, which is a strong showing given that the CPU is a budget-oriented 6-core part from 2021 and the GPU is a high-end card from 2022. The rank reflects the fact that the GPU can push very high frame rates, but the CPU prevents the system from reaching the absolute top tier — the top-ranked combos likely feature newer, higher-clocked processors.

The data shows that the combo's rank is more dependent on the CPU than the GPU in this game. At 1080p Low, the 542 FPS average is close to what many monitors can display, but it is not the highest possible. The rank of 743 suggests that there are 742 other combos that achieve better overall performance in Roblox, which could include systems with faster single-threaded CPUs paired with similar or lesser GPUs. The i5-11400F's 3dmark single-thread score of 868 is a limiting factor here, as higher scores would push the FPS ceiling higher.

When looking at the combo's standing relative to its individual components, the CPU's rank of 71 percentile and the GPU's rank of 55 percentile both contribute to the overall 743rd position. The GPU is not the weak link — it is the CPU that holds the combo back from reaching the top 500. This is evident in the scaling pattern: at 4K Ultra, the combo still manages 133 FPS, which is respectable, but at 1080p Low, the 542 FPS is only 4.1 times higher, not the 8 times you might expect if the GPU were scaling linearly. This bottleneck is the primary reason the combo ranks where it does.

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

The measured FPS data provides a complete picture of performance across three resolutions and four settings levels. Starting at 1080p, the Low preset delivers an average of 542 FPS, the highest in the dataset. The Medium preset drops to 493 FPS, with a minimum of 419 FPS and a maximum of 567 FPS. High settings yield 436 FPS, and Ultra drops to 353 FPS. These numbers show that even at the most demanding 1080p preset, the system is far above the 240 Hz refresh rate that most gaming monitors offer.

Moving to 1440p, the averages decrease but remain extremely high. Low settings produce 362 FPS, Medium drops to 329 FPS (with min 280 and max 378), High comes in at 291 FPS, and Ultra settles at 236 FPS. The 1440p Ultra result is still above 200 FPS, making this resolution a sweet spot for high-refresh-rate gaming with this combo. The gap between Low and Ultra at 1440p is 126 FPS, which is a 35% reduction, indicating that the GPU is beginning to take on more work.

At 4K, the performance drops more sharply. Low settings yield 205 FPS, Medium drops to 186 FPS (with min 158 and max 214), High comes in at 165 FPS, and Ultra falls to 133 FPS. The 4K Ultra result is the lowest in the dataset, but it is still well above 60 FPS, making it playable on standard 4K displays. The spread from Low to Ultra at 4K is 72 FPS, which is a 35% reduction, mirroring the 1440p scaling pattern. This consistency suggests that the GPU is the limiting factor at both 1440p and 4K, while the CPU begins to cap performance at 1080p.

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

The scaling from 1080p to 4K reveals the bottleneck structure of this combo. At Low settings, the FPS drops from 542 at 1080p to 362 at 1440p (a 33% decrease) and then to 205 at 4K (a 43% decrease from 1440p). This is a 62% total reduction from 1080p to 4K, which is less than the 75% reduction in pixel count (from 2.07 million to 8.29 million pixels). This indicates that at Low settings, the CPU is still a significant limiter at 1080p, preventing the GPU from fully flexing its muscles.

At Ultra settings, the FPS drops from 353 at 1080p to 236 at 1440p (a 33% decrease) and then to 133 at 4K (a 44% decrease from 1440p). The total reduction from 1080p to 4K is 62%, identical to the Low preset. This consistency across settings is a strong indicator that the GPU is the primary limiter at higher resolutions, while the CPU caps the maximum frame rate at lower resolutions. The fact that the percentage drop is the same for Low and Ultra suggests that the CPU overhead is relatively constant, and the GPU is scaling as expected with pixel count.

The data points to the RX 7900 XT being the component that dictates performance at 1440p and 4K, while the i5-11400F becomes the bottleneck at 1080p. This is a common pattern for high-end GPUs paired with mid-range CPUs. The 4K Medium result of 186 FPS is particularly telling — it shows that the GPU can handle 4K with ease, but the CPU is not fast enough to push the frame rate past the 500 FPS mark at 1080p. For gamers with a 144 Hz or 165 Hz monitor, this combo is overkill at 1080p, but it is well-suited for 1440p and 4K gaming.

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

Based on the measured FPS data, the optimal settings depend on the target resolution and refresh rate. At 1080p, the Ultra preset delivers 353 FPS, which is still far above any consumer monitor's refresh rate. The Low preset at 542 FPS offers no practical benefit unless the user has a 500 Hz display, which is rare. Therefore, at 1080p, the Ultra preset provides the best visual quality without sacrificing playability, as even the minimum FPS for Medium (419) is above 240 Hz.

At 1440p, the Ultra preset delivers 236 FPS, which is above 200 Hz and suitable for high-refresh monitors. The High preset at 291 FPS offers a 23% performance increase over Ultra, but the visual difference between High and Ultra in Roblox is often minimal. The Medium preset at 329 FPS (min 280) is the best choice for users with a 240 Hz monitor who want to ensure no frame drops, but the Ultra preset is recommended for those who prioritize image quality and have a 144 Hz or 165 Hz display.

At 4K, the Ultra preset delivers 133 FPS, which is above 120 Hz and suitable for most 4K monitors. The High preset at 165 FPS is the sweet spot for 144 Hz 4K displays, offering a 24% performance boost over Ultra. The Medium preset at 186 FPS (min 158) is recommended for users with a 144 Hz monitor who want headroom for demanding scenes. The Low preset at 205 FPS is unnecessary unless the user has a 240 Hz 4K monitor, which is extremely rare. Overall, the High preset at 4K and the Ultra preset at 1440p provide the best balance of visual fidelity and performance, while at 1080p, Ultra is the clear choice.

FAQ

Q: What is the highest average FPS measured for this combo in Roblox?

A: The highest average FPS is 542, achieved at 1920x1080 resolution with the Low settings preset.

Q: How does the combo perform at 4K with Ultra settings?

A: At 3840x2160 with Ultra settings, the combo delivers an average FPS of 133, which is the lowest measured result in the dataset but still well above 60 FPS.

Q: Is the CPU or GPU the limiting factor at 1080p?

A: The data indicates the CPU is the limiter at 1080p, as the FPS drops by only 62% from 1080p to 4K, which is less than the 75% reduction in pixel count, suggesting the GPU has headroom at lower resolutions.

Q: What is the combo's rank among all tested combinations in Roblox?

A: The combo ranks 743rd out of 3711 tested combinations, placing it in the top 20% of all configs in the database.

Q: What are the minimum and maximum FPS recorded for the Medium preset at 1440p?

A: At 2560x1440 with Medium settings, the minimum FPS is 280 and the maximum is 378, with an average of 329.

Q: How does the RX 7900 XT compare to its nearest rival in benchmark scores?

A: The RX 7900 XT has an average benchmark score of 13745, while the AMD Radeon 660M scores 13812, a delta of -0.5%, and the NVIDIA RTX A2000 Mobile scores 13821, also a delta of -0.5%.