Roblox

How This Combo Ranks

In the Roblox benchmark hierarchy, the AMD Ryzen 5 8400F paired with the NVIDIA GeForce RTX 4080 SUPER sits at rank 144 out of 1,800 tested combos. This places the pairing in the top 8% of all configurations tested for this title, a strong showing given the game's long-standing reputation as a lighter-load sandbox experience. The rank reflects the combination's ability to push frame rates far beyond typical display refresh rates, even at demanding resolutions.

The CPU component carries an average benchmark score of 25,064, which places it in the 82nd percentile against all tested processors. Its nearest rivals show how tightly clustered this performance tier is: the AMD Ryzen 7 2700X matches at 25,057 with a deltaPct of 0, essentially a statistical tie. The AMD Ryzen AI 5 PRO 340 scores 25,099 (-0.1% relative), and the AMD EPYC 9474F reaches 25,103 (-0.2%), showing the 8400F trades blows with much higher-tier server hardware. The AMD Ryzen 5 7500F trails at 24,993, a 0.3% delta in favor of the 8400F. This clustering indicates that for Roblox's threaded workload patterns, the 8400F extracts performance comparable to chips with different core configurations.

On the GPU side, the RTX 4080 SUPER achieves an average benchmark score of 53,610, ranking in the 88th percentile of all graphics cards. Its nearest rivals reinforce the performance tier: the AMD Radeon RX 6900 XT scores 53,489 (0.2% behind), the AMD Radeon Pro W6600M hits 53,414 (0.4% behind), and the AMD Radeon RX 7700S trails at 52,505 (2.1% behind). The NVIDIA GeForce RTX 5070 Ti, a newer-generation competitor, sits at 52,086, which is 2.9% lower than the 4080 SUPER's score. This data shows the 4080 SUPER remains highly competitive within its class, even against more recent releases.

GPU Role

The RTX 4080 SUPER brings substantial memory and bandwidth resources to Roblox. Its 16 GB of GDDR6X memory operates across a 256-bit bus, delivering 736.3 GB/s of bandwidth. The memory clock runs at 1438 MHz, translating to 23 Gbps effective, which provides ample headroom for the game's texture streaming and asset loading. The GPU's base clock sits at 2295 MHz with a boost clock of 2550 MHz, allowing it to maintain high throughput in scenes with many dynamic objects.

The GPU's raw compute resources are considerable: 10,240 shading units, 320 texture mapping units, and 112 raster output units. Its 80 ray tracing cores and 320 tensor cores enable 52.22 TFLOPS of FP32 performance, which is far beyond what Roblox typically demands. The pixel rate of 285.6 GPixel/s and texture rate of 816.0 GTexel/s suggest the card can handle even the most complex user-generated content without bottlenecking. In practice, the measured FPS data shows the GPU rarely becomes the limiting factor, particularly at 1080p where frame rates exceed 600 FPS on Low settings.

Resolution Scaling

The measured FPS data reveals how performance scales across resolutions. At 1920x1080 with Low settings, the combo achieves 638.1 FPS average. Moving to 2560x1440 Low drops this to 427.8 FPS, a reduction of approximately 33%. At 3840x2160 Low, the average falls to 239.5 FPS, representing a further 44% drop from 1440p. This scaling pattern suggests the CPU begins to limit performance at lower resolutions, as the frame rate deltas are larger than what pure GPU-bound scaling would predict.

The High settings tier shows similar scaling behavior. From 516 FPS at 1080p, the average drops to 345.7 FPS at 1440p (33% reduction) and then to 192.9 FPS at 4K (44% reduction from 1440p). The consistent proportional drops across settings tiers indicate that the bottleneck shifts gradually from CPU to GPU as resolution increases. At 4K, the GPU's workload becomes more significant, but the RTX 4080 SUPER still delivers nearly 193 FPS on High, which exceeds most high-refresh displays.

The Ultra settings tier exhibits the steepest scaling curve. Starting at 419.9 FPS at 1080p, it falls to 279.9 FPS at 1440p and 154.7 FPS at 4K. This represents a 63% total reduction from 1080p to 4K, showing that Ultra settings amplify the GPU load substantially. The data indicates that at 4K Ultra, the combination approaches the boundary where GPU compute becomes the primary constraint, though it still maintains playable frame rates.

Settings Recommendations

The measured rows show that the Low preset delivers the highest frame rates at every resolution, but the differences between presets reveal where the optimal experience lies. At 1080p, Low reaches 638.1 FPS, Medium 579.2 FPS, and High 516 FPS. The gap between Low and High is 122.1 FPS, which represents a 19% performance penalty for the higher visual quality. Given that even High exceeds 500 FPS at 1080p, users with 144Hz or 240Hz displays can comfortably select High without sacrificing smoothness.

At 1440p, the recommendation shifts slightly. Low produces 427.8 FPS, Medium 387.7 FPS, and High 345.7 FPS. The High preset still delivers well above 300 FPS, making it the preferred choice for most users with high-refresh monitors. The Ultra preset at 279.9 FPS remains viable, but the additional visual fidelity may not justify the 24% performance drop from High.

For 4K resolution, the choices become more nuanced. High achieves 192.9 FPS, which comfortably supports 144Hz displays. Ultra drops to 154.7 FPS, still playable but with a 20% penalty. Low at 239.5 FPS and Medium at 218 FPS provide headroom for users with 240Hz panels. The data suggests that High is the balanced recommendation at 4K, offering strong visual quality while maintaining frame rates above 190 FPS.

Measured FPS Breakdown

At 1920x1080, the combination delivers exceptional performance across all presets. Low settings produce 638.1 FPS average, Medium reaches 579.2 FPS, High achieves 516 FPS, and Ultra settles at 419.9 FPS. The spread of 218.2 FPS between Low and Ultra indicates that Roblox's settings have a measurable impact on frame rate, but even the most demanding preset exceeds 400 FPS.

Moving to 2560x1440, the frame rates remain high but show the expected scaling. Low yields 427.8 FPS, Medium 387.7 FPS, High 345.7 FPS, and Ultra 279.9 FPS. The gap between Low and Ultra narrows to 147.9 FPS in absolute terms, though the proportional difference remains similar to 1080p. This resolution represents a sweet spot for the combo, as it maintains high frame rates while providing additional pixel density.

At 3840x2160, performance drops to more moderate levels but remains impressive. Low produces 239.5 FPS, Medium 218 FPS, High 192.9 FPS, and Ultra 154.7 FPS. The Ultra preset at 4K is the only configuration that falls below 200 FPS, and it still clears the 144Hz threshold. The data shows consistent performance degradation with increased resolution, but no configuration becomes unplayable.

CPU Role

The AMD Ryzen 5 8400F provides six cores and twelve threads based on the Zen 4 architecture, codenamed Phoenix. Its base clock of 4.20 GHz and boost clock of 4.70 GHz deliver strong single-thread performance, evidenced by the 3DMark single-thread score of 951 and Cinebench R23 single-core score of 2,943. The 4 nm process node from TSMC houses 25,000 million transistors on a 178 mm² die, with 16 MB of shared L3 cache.

Roblox's engine benefits from the CPU's balanced thread distribution. The 3DMark 16-thread score of 6,091 and max-thread score of 6,165 indicate that the processor scales well with the game's parallel workloads. The Cinebench R23 multicore score of 20,851 shows solid sustained multi-threaded performance, which supports the high frame rates observed at 1080p where CPU bottlenecks typically emerge first.

The CPU's memory bandwidth of 83.2 GB/s over dual-channel DDR5 provides sufficient data throughput for the game's asset streaming. The PassMark single-thread score of 3,684 reinforces that the 8400F's per-core performance is a key contributor to the frame rates achieved, particularly at lower resolutions where the CPU has a more prominent role. The processor's 65W TDP and unlocked multiplier offer efficiency and overclocking headroom, though the measured data reflects stock performance. The combination of six fast cores and twelve threads proves well-matched to Roblox's demands, allowing the RTX 4080 SUPER to operate near its full potential across the tested settings.