Roblox

Roblox, a sandbox title from 2006, presents an interesting case study in hardware scaling. The measured data pairs the 24-core Intel Core Ultra 9 290K Plus with the 4 GB AMD Radeon RX 570, a combination that ranks 2885 out of 3010 tested combos, placing it in the lower 4.2% of all pairings. This low rank suggests a significant bottleneck, and the resolution scaling data provides clear evidence of where the performance limit resides.

Resolution Scaling

The FPS drop from 1080p to 4K is dramatic and tells a clear story about which component is the limiting factor. At 1920x1080 with Low settings, the combo achieves an average of 148 FPS. Moving to 2560x1440, that average falls to 99 FPS, a reduction of 49 FPS. At 3840x2160, the average drops further to 56 FPS. This pattern reveals a steep performance cliff as pixel count increases, which is the classic signature of a GPU-bound scenario. The CPU is capable of feeding frames at 1080p, but the RX 570 cannot maintain that throughput as the rendering load grows.

The scaling from Medium settings illustrates the same trend with a more complete data set. At 1080p Medium, the average is 135 FPS with a minimum of 114 and a maximum of 155. At 1440p Medium, the average falls to 90 FPS, with the minimum dropping to 76 and the maximum to 103. At 4K Medium, the average is 51 FPS, with the frame time variance tightening to a 43-58 FPS range. The consistent drop of roughly 45 FPS between each resolution step at Medium settings indicates a linear relationship between pixel count and frame rate, which is a direct indicator that the GPU's fill rate and memory bandwidth are being saturated.

The data implies that the Intel Core Ultra 9 290K Plus is not the constraint in this pairing. Its high single-thread performance, evidenced by a Cinebench R23 single-core score of 7303, is more than sufficient for Roblox's typically light CPU demands. The bottleneck is almost entirely the AMD Radeon RX 570. Its 224.0 GB/s memory bandwidth and 4 GB of GDDR5 VRAM are overwhelmed at higher resolutions. The 39.81 GPixel/s pixel rate is simply not enough to fill 4K frames at high speed. The 45 FPS average at 4K High versus 36 FPS at 4K Ultra shows that even within the same resolution, the GPU struggles to keep up with increased visual fidelity.

FAQ

Q: What is the highest average frame rate this combo achieves in Roblox?

A: The highest average FPS recorded is 148 at 1920x1080 with Low settings. This is 29 FPS higher than the next best setting at the same resolution, which is Medium at 135 FPS.

Q: How does the combo rank among all tested systems for this game?

A: The combo ranks 2885 out of 3010 tested combinations, placing it in the bottom percentile of performers for Roblox. This ranking is based on the measured FPS data across all settings and resolutions.

Q: Is the 4 GB VRAM on the RX 570 sufficient for 4K gameplay?

A: No, the data suggests it is not. At 3840x2160, the average FPS drops to 45 on High and 36 on Ultra, indicating that the GPU is severely limited. The low scores suggest that both the memory capacity and bandwidth are insufficient for the demands of 4K rendering in this title.

Q: What is the performance difference between Low and Ultra settings at 1080p?

A: At 1920x1080, the difference is 51 FPS. Low settings average 148 FPS, while Ultra settings average 97 FPS. This shows that the visual quality jump from Low to Ultra costs roughly a third of the frame rate at this resolution.

Q: Which component is the primary bottleneck in this system for Roblox?

A: The data strongly indicates the AMD Radeon RX 570 is the limiting factor. The FPS drops significantly as resolution increases, a pattern typical of GPU limitations, while the high-performance CPU shows no signs of being a constraint.

Q: Does the performance gap between Low and Ultra settings widen at higher resolutions?

A: Yes, the gap widens. At 1080p, the difference between Low and Ultra is 51 FPS. At 1440p, the gap is 35 FPS (99 vs 64). At 4K, the gap narrows to 20 FPS (56 vs 36). This narrowing at 4K indicates that the GPU is so taxed that even lowering settings provides diminishing returns.

Settings Recommendations

The measured data suggests that for the best balance of visual quality and performance, Medium settings are the optimal choice. At 1080p, Medium delivers a 135 FPS average with a minimum of 114 FPS, which is well above the threshold for smooth gameplay. The jump from Medium to High costs 16 FPS (135 to 119), while the jump from High to Ultra costs another 22 FPS (119 to 97). Medium provides a substantial visual improvement over Low while maintaining a high frame rate.

At 1440p, Medium remains the most balanced option. It achieves a 90 FPS average, which is playable, while High drops to 79 FPS and Ultra falls to 64 FPS. The Low setting at 1440p hits 99 FPS, but the visual compromise is significant. For users with a 1440p monitor, Medium is the recommended preset to avoid dipping below 90 FPS.

At 4K, the situation is different. The data shows that no setting provides a consistently smooth experience. Medium is the highest playable setting, averaging 51 FPS, but the minimum of 43 FPS indicates noticeable stutters. High and Ultra average 45 and 36 FPS respectively, which are not ideal for fast-paced action. For 4K, the data suggests that users should either play on Low, which averages 56 FPS, or consider lowering the resolution. The 4 GB VRAM is likely a major factor in the poor 4K performance, as the card struggles to manage the texture data required for higher presets.

Measured FPS Breakdown

At 1920x1080, the frame rates are consistently high. Low settings produce an average of 148 FPS. Medium settings yield a 135 FPS average, with a minimum of 114 and a maximum of 155 FPS. High settings drop to 119 FPS average. Ultra settings are the lowest at 1080p, with a 97 FPS average. The data shows a clear hierarchy where each step up in settings reduces performance by roughly 15-20 FPS.

At 2560x1440, the performance drops are more pronounced. Low settings average 99 FPS. Medium settings average 90 FPS, with a minimum of 76 and a maximum of 103 FPS. High settings average 79 FPS. Ultra settings average 64 FPS. The gap between Low and Ultra at this resolution is 35 FPS, highlighting the increased GPU load.

At 3840x2160, the RX 570 is clearly out of its depth. Low settings average 56 FPS. Medium settings average 51 FPS, with a minimum of 43 and a maximum of 58 FPS. High settings average 45 FPS. Ultra settings average 36 FPS. The range between the best and worst settings at 4K is only 20 FPS, demonstrating that the GPU is the primary constraint and that the CPU is not a factor at this resolution.

How This Combo Ranks

The combination of the Intel Core Ultra 9 290K Plus and the AMD Radeon RX 570 ranks 2885 out of 3010 combos for Roblox. This places it in the bottom 4.2% of all tested systems. This low rank is surprising given the CPU's high performance, but it is entirely consistent with the GPU's limitations. The data indicates that the system's overall performance is dictated by the RX 570, which is an older, lower-end card.

The GPU's average benchmark score is 28766, which puts it in the 74th percentile of all GPUs. Its nearest rivals include the AMD Radeon RX 6800M, which is only 0.4% faster, and the AMD Radeon RX 470, which is 0.8% faster. This shows that the RX 570 is a mid-range performer in general compute tasks, but its 4 GB VRAM and 256-bit memory bus are not suited for the high-resolution demands of modern games like Roblox at Ultra settings. The CPU, in contrast, is a top-tier part, ranking in the 96th percentile of all CPUs, with an average score of 84003. The massive disparity between the CPU's high rank and the combo's low rank underscores the severity of the GPU bottleneck.

CPU Role

The Intel Core Ultra 9 290K Plus is a 24-core, 24-thread processor based on the Arrow Lake Refresh architecture. It has a base clock of 3.70 GHz and a boost clock of 5.80 GHz. Its Cinebench R23 multi-core score is 51731, and its single-core score is 7303. In PassMark tests, it scores 60860 in multithread and 4823 in single-thread. These figures place it in the 96th percentile of all CPUs, ahead of the AMD EPYC 9135 by 1.2% and the Intel Core Ultra 9 285K by 0.2%.

For Roblox, the CPU's role is less critical than the GPU's. The game is not known for heavy CPU usage, and the data confirms that the 290K Plus is more than capable of handling the game's logic and physics. The high single-core performance is beneficial for Roblox, as the game engine often relies on a single main thread for game logic. The CPU's 36 MB of shared L3 cache also helps reduce latency. However, the benchmark results show that even with this powerful CPU, the system's FPS is capped by the GPU. The CPU is essentially waiting for the GPU to finish rendering frames, as evidenced by the FPS scaling with resolution.

GPU Role

The AMD Radeon RX 570 is a 14 nm Polaris 20 chip with a base clock of 1168 MHz and a boost clock of 1244 MHz. It has 2048 shading units, 128 TMUs, and 32 ROPs. Its memory configuration is 4 GB of GDDR5 on a 256-bit bus, providing 224.0 GB/s of bandwidth. The card's FP32 performance is 5.095 TFLOPS. Its average benchmark score is 28766, placing it in the 74th percentile of all GPUs. Its nearest rival, the AMD Radeon RX 6800M, is only 0.4% faster, showing that the RX 570 is a solid performer for its class.

In Roblox, the GPU is the definitive bottleneck. The 4 GB VRAM is a major limitation, especially at 4K where texture data can easily exceed this capacity. The 224.0 GB/s memory bandwidth is also insufficient for the pixel throughput required at high resolutions. The data shows that the GPU's performance degrades rapidly as resolution increases, confirming that it is the limiting component. The low combo rank of 2885 out of 3010 is directly attributable to the GPU's inability to keep pace with the CPU's capabilities. The card's 150 W TDP and dual-slot design are typical for its class, but its end-of-life production status suggests it is an older part that struggles with modern gaming loads.