Roblox

The Intel Core i5-13400F paired with the AMD Radeon RX 6650 XT delivers strong frame rates in Roblox across all tested resolutions. At 1080p High, the combo averages 256.5 FPS, dropping to 170.6 at 1440p and 95.6 at 4K. The combo ranks 1122 out of 1800 tested combinations, placing it above the median for this game.

Resolution Scaling

The measured FPS data shows a clear pattern of diminishing returns as resolution increases. From 1080p High to 1440p High, the average frame rate drops from 256.5 to 170.6, a 33.5% reduction. Moving from 1440p to 4K High, the average falls from 170.6 to 95.6, a 44% drop. This steeper decline at higher resolutions indicates the GPU becomes the primary limiting factor at 4K, while the CPU’s strong single-thread performance (3dmark single-thread score of 960) keeps frame rates high at 1080p.

The scaling pattern is consistent across all settings. At Low, the drop from 1080p (322.5 FPS) to 1440p (211.7 FPS) is 34.3%, and from 1440p to 4K (123.1 FPS) is 41.8%. At Ultra, the corresponding drops are 32.3% (210.2 to 142.2) and 42.2% (142.2 to 82.2). The similarity in these percentages suggests that the GPU’s rendering load scales predictably with pixel count, and the CPU is not a bottleneck even at 4K Ultra, where the average remains above 80 FPS.

For a game like Roblox, which is not graphically intensive, this combo shows that the RX 6650 XT is the component that determines the ceiling at high resolutions. The i5-13400F, with its 10 cores and 16 threads, provides ample headroom for the game’s physics and logic, as evidenced by the high frame rates at 1080p where CPU-bound scenarios typically appear.

FAQ

Q: What is the average FPS at 1080p Ultra?

A: The combo averages 210.2 FPS at 1080p Ultra, which is well above the 144 Hz refresh rate common on gaming monitors.

Q: How does this combo rank among all tested combinations?

A: It ranks 1122 out of 1800 tested combos, placing it in the top 62.3% of all configurations for Roblox.

Q: What is the GPU’s memory bandwidth?

A: The RX 6650 XT has a memory bandwidth of 280.3 GB/s, which is sufficient for the game’s texture and asset streaming at all tested settings.

Q: What is the CPU’s boost clock?

A: The i5-13400F has a boost clock of 4.60 GHz, which contributes to its strong single-thread performance in Roblox.

Q: How much VRAM does the GPU have?

A: The RX 6650 XT comes with 8 GB of GDDR6 memory, which is more than enough for Roblox’s modest VRAM requirements.

How This Combo Ranks

The combo’s rank of 1122 out of 1800 places it above the median for Roblox, but not in the top tier. The CPU’s percentile of 82 (better than 82% of all CPUs) is notably higher than the GPU’s percentile of 72. This discrepancy suggests that the RX 6650 XT is the weaker link in this pairing, holding back the overall ranking. The i5-13400F’s average benchmark score of 25236 is nearly identical to its nearest rival, the Intel Core i7-13620H (25201, delta 0.1%), and slightly below the AMD Ryzen 5 5600X3D (25365, delta -0.5%). The GPU’s average benchmark score of 29024 is also close to its nearest rival, the AMD Radeon RX 6800M (29011, delta 0%), indicating that the GPU is a mid-pack performer.

In Roblox specifically, the combo’s rank is likely limited by the GPU’s performance at 4K, where the average FPS drops below 100 at High settings. At 1080p, the combo would rank higher due to the CPU’s strong single-thread capabilities, but the overall rank reflects the average across all tested resolutions.

Measured FPS Breakdown

| Resolution | Settings | Avg FPS |

|------------|----------|---------|

| 3840x2160 | High | 95.6 |

| 3840x2160 | Low | 123.1 |

| 3840x2160 | Medium | 111.2 |

| 3840x2160 | Ultra | 82.2 |

| 2560x1440 | High | 170.6 |

| 2560x1440 | Low | 211.7 |

| 2560x1440 | Medium | 194.7 |

| 2560x1440 | Ultra | 142.2 |

| 1920x1080 | High | 256.5 |

| 1920x1080 | Low | 322.5 |

| 1920x1080 | Medium | 290.9 |

| 1920x1080 | Ultra | 210.2 |

The data shows a consistent hierarchy: Low settings always yield the highest FPS, followed by Medium, High, and Ultra. At 1080p, even Ultra settings produce 210.2 FPS, which is more than sufficient for any display. At 1440p, Low settings exceed 200 FPS, while Ultra stays above 140 FPS. At 4K, Low settings are the only preset that breaks 120 FPS, with Ultra dropping to 82.2 FPS.

GPU Role

The AMD Radeon RX 6650 XT is built on the RDNA 2.0 architecture with a 7 nm process. It features 8 GB of GDDR6 memory on a 128-bit bus, delivering a bandwidth of 280.3 GB/s. The GPU’s base clock is 2055 MHz, with a game clock of 2410 MHz and a boost clock of 2635 MHz. These clocks are relatively high for a mid-range card, and the memory clock runs at 2190 MHz (17.5 Gbps effective). The GPU’s passmark G3D score is 17166, and its percentile of 72 indicates it outperforms 72% of all GPUs.

In Roblox, the GPU’s role is to handle the rendering load, which scales with resolution and settings. The 8 GB VRAM is ample for the game’s textures, and the high bandwidth ensures smooth asset streaming. The GPU’s performance is the limiting factor at 4K, where the average FPS drops below 100 at High settings. However, at 1080p and 1440p, the GPU is more than capable, with all settings producing frame rates above 140 FPS. The launch MSRP of the GPU is 399 USD, which positions it as a mid-range option.

Settings Recommendations

For 1080p displays, the Low preset delivers 322.5 FPS, which is ideal for competitive play or high-refresh-rate monitors. Medium settings at 290.9 FPS offer a good balance of visual quality and performance, while High and Ultra still exceed 210 FPS. For 1440p, Low settings at 211.7 FPS are the best choice for high refresh rates, with Medium at 194.7 FPS also being viable. High and Ultra remain playable at 170.6 and 142.2 FPS, respectively.

At 4K, the Low preset is the only one that maintains an average above 120 FPS (123.1), making it the recommended choice for smooth gameplay. Medium at 111.2 FPS is still playable, but High and Ultra drop to 95.6 and 82.2 FPS, which may be acceptable for slower-paced games but not ideal for fast action. Given the data, the best experience depends on the display: for 1080p or 1440p, Medium or High settings provide a strong balance; for 4K, Low settings are the safest bet to keep frame rates high.