Roblox

Roblox, a sandbox title from 2006, remains exceptionally light on hardware demands. The measured data for the Intel Core i5-10400F and AMD Radeon RX 7800 XT combination shows extraordinary frame rates across all tested resolutions and settings, indicating a system that is overwhelmingly capable of running this game at maximum performance. The analysis below breaks down the measured FPS data to understand scaling behavior, optimal settings, and the role each component plays.

Resolution Scaling

The measured frame rates reveal how performance scales from 1080p to 4K. At 1920x1080 with Low settings, the system achieves 451.1 FPS. Moving to High settings at the same resolution yields 362.7 FPS, a drop of 88.4 FPS. The Ultra preset at 1080p produces 295.3 FPS, which is still exceptionally high and far above any display's refresh rate.

Scaling to 2560x1440 shows a predictable performance reduction. At Low settings, the frame rate drops from 451.1 FPS to 302 FPS, a 149.1 FPS decrease. High settings at 1440p produce 239.4 FPS, while Ultra settings yield 196.2 FPS. The scaling pattern from 1080p to 1440p shows a significant reduction in frame rates, indicating that resolution is having a measurable impact on performance.

At 3840x2160, the performance continues to scale down, but remains remarkably high. The Low preset produces 171.6 FPS, High produces 135.4 FPS, and Ultra produces 109.2 FPS. The difference between 1080p Low and 4K Low is 279.5 FPS, a substantial drop. However, even the lowest measured result at 4K Ultra remains above 100 FPS.

The scaling behavior suggests that neither component is a bottleneck at any tested resolution. The fact that even at 4K Ultra, the system maintains 109.2 FPS indicates that the RX 7800 XT has ample headroom for this workload. The data shows a consistent and smooth scaling curve across resolutions, with the frame rate dropping by roughly 30-40% when moving from 1080p to 1440p, and another 30-40% when moving from 1440p to 4K. This proportional scaling implies that the workload is primarily GPU-bound, with the GPU's fill rate and memory bandwidth being the limiting factors, rather than CPU-based physics or game logic.

Settings Recommendations

The measured data provides clear guidance on the optimal settings preset for this combination. At 1080p, all four presets produce frame rates above 295 FPS, meaning any setting is playable. The difference between Low and Ultra at 1080p is 155.8 FPS, with Ultra still delivering 295.3 FPS. For players with 60Hz or 144Hz displays, even the Ultra preset at 1080p far exceeds display capabilities.

At 1440p, the High preset delivers 239.4 FPS, while Ultra delivers 196.2 FPS. Both are excellent for high-refresh-rate monitors. The Medium preset at 274 FPS offers a middle ground, but the visual quality difference between Medium and High is typically more noticeable than the performance difference. The data suggests that High settings at 1440p provide the best balance, as the frame rate is 43.2 FPS higher than Ultra while likely offering most of the visual fidelity.

At 4K, the choice becomes more nuanced. Ultra delivers 109.2 FPS, which is still above 100 FPS and suitable for most displays. High delivers 135.4 FPS, offering a 26.2 FPS improvement over Ultra. Low delivers 171.6 FPS, but the visual compromise is likely too significant for a game like Roblox where the aesthetic is part of the experience. The measured data indicates that High settings at 4K provide a strong experience, with frame rates that exceed 120 FPS and visual quality that is close to the maximum.

GPU Role

The AMD Radeon RX 7800 XT serves as the primary driver of the high frame rates observed. The GPU features 16 GB of GDDR6 memory on a 256-bit bus, providing 624.1 GB/s of bandwidth. The memory clock runs at 2438 MHz, or 19.5 Gbps effective. These specifications are far beyond what a sandbox game like Roblox typically requires, explaining why frame rates remain high even at 4K.

The GPU's boost clock is 2430 MHz, with a game clock of 2124 MHz. The architecture is RDNA 3.0, built on a 5 nm process at TSMC, containing 28,100 million transistors on a 346 mm² die. The GPU has 3840 shading units, 240 TMUs, and 96 ROPs. These raw compute resources, combined with the high memory bandwidth, ensure that rendering tasks are completed quickly.

The measured frame rates show that the GPU is not being fully utilized even at 4K Ultra, as the frame rate is still above 100 FPS. The percentile ranking of 76 indicates the GPU performs above average compared to all GPUs in the database. Its average benchmark score is 32619, with nearest rivals including the AMD FirePro S9300 X2 (32540, deltaPct 0.2) and the NVIDIA P104-100 (32747, deltaPct -0.4). The data suggests that the GPU's capabilities are sufficient for Roblox at any resolution, and the limiting factor for higher frame rates would be the CPU if it were less capable.

FAQ

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

A: The highest measured average FPS is 451.1, achieved at 1920x1080 with Low settings.

Q: Can this system run Roblox at 4K with Ultra settings?

A: Yes, the measured average FPS at 3840x2160 with Ultra settings is 109.2, which is above 100 FPS and suitable for most displays.

Q: How much performance is lost when moving from 1080p to 4K at High settings?

A: The average FPS drops from 362.7 at 1080p High to 135.4 at 4K High, a decrease of 227.3 FPS.

Q: What is the GPU's memory bandwidth?

A: The AMD Radeon RX 7800 XT has a memory bandwidth of 624.1 GB/s, provided by 16 GB of GDDR6 memory on a 256-bit bus.

Q: Is the CPU or GPU more likely to be the limiting factor in this game?

A: The data shows that frame rates scale consistently with resolution, indicating a GPU-bound workload. The CPU's performance is sufficient, as frame rates remain high even at lower resolutions where CPU load would be relatively higher.

Q: What is the combo's rank among tested configurations?

A: The combo ranks 684 out of 1800 tested combos for Roblox, placing it in the top 38% of all tested systems.

How This Combo Ranks

The combination of the Intel Core i5-10400F and AMD Radeon RX 7800 XT ranks 684 out of 1800 tested combos for Roblox. This places the system in the upper portion of the database, though not at the very top. The rank reflects the measured performance of 109.2 FPS at 4K Ultra, which is strong but not the highest recorded.

The rank of 684 suggests that there are 683 other combos that achieve higher frame rates in Roblox. Given that the measured FPS values are all above 100 FPS even at the most demanding settings, the difference between this combo and higher-ranked ones is likely due to other factors such as higher-end CPUs or GPUs achieving even more extreme frame rates. However, the practical difference is minimal, as any frame rate above 144 FPS is effectively indistinguishable on most displays.

The CPU's percentile rank of 73 indicates it performs better than 73% of all CPUs, while the GPU's percentile rank of 76 indicates it performs better than 76% of all GPUs. The combo rank of 684 out of 1800 suggests that the pairing is well-balanced, with neither component significantly holding back the other in this game.

CPU Role

The Intel Core i5-10400F is a 6-core, 12-thread processor from the Comet Lake architecture, built on a 14 nm process. It has a base clock of 2.90 GHz and a boost clock of 4.30 GHz. The CPU has 12 MB of shared L3 cache and supports DDR4 memory in a dual-channel configuration, providing 42.7 GB/s of memory bandwidth.

In Roblox, the CPU's role is primarily to handle game logic, physics, and draw calls. The measured benchmarks show a single-thread score of 688 in 3dmark and 1453 in Cinebench R23. The multi-thread scores are 4735 in 3dmark max threads and 10297 in Cinebench R23. These scores indicate solid single-thread performance, which is important for games that rely on a primary game thread.

The data shows that the CPU is not a bottleneck in this pairing. At 1080p Low, the system achieves 451.1 FPS, and the scaling to 4K shows a consistent reduction in frame rates. If the CPU were the limiting factor, the frame rates would remain relatively flat across resolutions. Instead, the frame rates drop proportionally with resolution, indicating that the GPU is the component determining performance.

The CPU's nearest rivals include the AMD EPYC 7552 (avgScore 14115, deltaPct 0.4), AMD Ryzen 3 7320C (avgScore 14277, deltaPct -0.8), and Intel Core i5-8500 (avgScore 14332, deltaPct -1.1). The i5-10400F's average benchmark score is 14168, placing it competitively among these options. For Roblox, the CPU provides more than enough processing power to feed the GPU, ensuring that the GPU can operate at its full potential without waiting on the CPU.