Roblox

Roblox is a sandbox title where the combination of an Intel Core i7-13700K and an AMD Radeon RX 9070 XT delivers exceptionally high frame rates across all tested settings. The measured data shows a system that is heavily overqualified for the game’s typical demands, with performance scaling that reveals a nuanced relationship between resolution, graphical presets, and the underlying hardware. This analysis breaks down the measured FPS to interpret what the numbers indicate about the limiting components and how to best configure the experience.

Resolution Scaling

Examining the data from 1080p to 4K reveals a predictable pattern of performance degradation, but the magnitude of the drop is more moderate than one might expect given the GPU’s specifications. At the High preset, the average frame rate falls from 404 FPS at 1920x1080 to 270 FPS at 2560x1440, and finally to 153 FPS at 3840x2160. This represents a 33% decrease from 1080p to 1440p, and a further 43% decrease from 1440p to 4K. The total drop from 1080p to 4K is 251 FPS, or roughly 62% of the original performance.

The scaling pattern is consistent across all presets, but the percentage drops vary. For the Low preset, performance goes from 502 FPS at 1080p down to 335 FPS at 1440p and 190 FPS at 4K. This is a 62% reduction from 1080p to 4K, which is identical to the High preset’s relative decline. The Medium preset shows a similar trend, starting at 457 FPS, dropping to 305 FPS at 1440p, and ending at 173 FPS at 4K — a 62% total reduction. The Ultra preset is the most demanding, with figures of 328 FPS, 219 FPS, and 124 FPS for the three resolutions, representing a 62% decline as well.

The consistency of this 62% drop across all presets when moving from 1080p to 4K suggests that the scaling is primarily driven by the rendering resolution itself rather than the specific graphical features enabled by each preset. The fact that the relative decline is so uniform indicates that the GPU’s pixel throughput, which scales directly with resolution, is the dominant factor. At 1080p, the frame rates are so high — exceeding 500 FPS in the Low preset — that the CPU must be feeding frames at an extraordinary rate. As resolution increases, the GPU takes longer to render each frame, and the bottleneck shifts more firmly to the graphics card.

The data suggests that at 1080p, the system may be partially limited by the CPU’s ability to issue draw calls and manage game logic, even with a 16-core processor. The gap between Low and High presets at 1080p is 98 FPS (502 vs 404), while at 4K the gap narrows to 37 FPS (190 vs 153). This narrowing gap is a classic sign that the GPU becomes the primary constraint at higher resolutions, minimizing the impact of CPU-bound preset changes. The measured minimum and maximum FPS values for the Medium preset support this: at 1080p, the range is 389 to 526 FPS, while at 4K it narrows to 147 to 198 FPS, indicating more consistent frame pacing when the GPU is fully saturated.

CPU Role

The Intel Core i7-13700K is a 16-core processor with 24 threads, based on the Raptor Lake architecture. Its benchmark scores are formidable: a Cinebench R23 multicore score of 30745 and a single-core score of 2116, with a Geekbench multicore result of 19429. The processor’s boost clock reaches 5.40 GHz, and it maintains a base clock of 3.40 GHz. In the context of Roblox, which is known for being more sensitive to single-thread performance than multi-thread scaling, the i7-13700K’s strengths are evident.

The benchmark data shows a 3dmark single-thread score of 1136 and a 2-thread score of 2262, which is roughly double, indicating strong scaling with the first two threads. The 4-thread score of 4469 and 8-thread score of 8193 show continued scaling, but the marginal gains diminish as more cores are utilized. The max-thread score of 12412 is only 51% higher than the 8-thread score, suggesting that Roblox, or the testing methodology, does not fully utilize all 24 threads. This is typical for a game that relies on a few primary threads for game logic and physics.

The CPU’s performance relative to its nearest rivals shows a tight grouping. The AMD Ryzen 9 5900 has an average score that is 0.2% higher, and the AMD Ryzen AI 9 HX PRO 375 is 0.3% higher. Conversely, the AMD Ryzen 9 7845HX and Intel Xeon w3-2535 are each 0.5% lower. This indicates that the i7-13700K is positioned at the very top of its performance tier, with differences that are within the margin of error. The 89th percentile ranking among all CPUs confirms that this is a high-end part, but the measured FPS in Roblox suggests that even a less powerful CPU could achieve high frame rates given the GPU’s capabilities.

The data shows that at 1080p Low, the system hits 502 FPS. This is an extremely high number that approaches the limits of what most display technology can show. The CPU’s role here is to keep up with the GPU’s demand for frames. With a Passmark single-thread score of 4333 and a 3dmark single-thread score of 1136, the i7-13700K provides ample headroom. However, the fact that the Ultra preset at 1080p drops to 328 FPS, while the Low preset reaches 502 FPS, indicates that the CPU is not the limiting factor even at the highest preset; the additional graphical load on the GPU is what reduces performance.

GPU Role

The AMD Radeon RX 9070 XT is built on the RDNA 4.0 architecture with a Navi 48 chip, fabricated on a 4 nm process. It features 16 GB of GDDR6 memory on a 256-bit bus, providing a bandwidth of 644.6 GB/s. The GPU’s boost clock is rated at 2970 MHz, with a game clock of 2400 MHz. These specifications are substantial, and the measured performance in Roblox reflects that.

The GPU’s Passmark G3D score is 26795, which places it in the 55th percentile of all GPUs. Its average benchmark score is 13543, with nearest rivals including the AMD Radeon HD 7770M (0.1% higher), NVIDIA GeForce GTX 570 (0.2% higher), and NVIDIA P106-090 (0.5% higher). This ranking may seem low for a modern GPU, but it is important to note that the Passmark suite includes a wide range of legacy and professional workloads that do not directly translate to gaming performance. The 3dmark Steel Nomad DX12 score of 7260 is a more modern indicator, and the Geekbench Vulkan score of 65879 shows strong API performance.

In Roblox, the GPU’s role becomes more pronounced as resolution increases. At 4K Ultra, the frame rate drops to 124 FPS, which is still highly playable but represents the lowest measured result. The GPU’s memory capacity of 16 GB is more than sufficient for Roblox, which is not a VRAM-heavy title. The texture rates and pixel rates are also ample; the GPU achieves a pixel rate of 380.2 GPixel/s and a texture rate of 760.3 GTexel/s. These figures explain why the GPU can maintain high frame rates even at 4K, where the pixel fill rate is a critical factor.

The measured FPS at the Low preset across all resolutions shows that the GPU is capable of far more than what Roblox demands. At 1440p Low, the system achieves 335 FPS, and at 4K Low, it still manages 190 FPS. This indicates that the GPU is not the primary bottleneck at lower settings; instead, the game engine’s rendering pipeline or the CPU’s frame delivery becomes the limiting factor. The GPU’s FP32 performance of 48.66 TFLOPS is more than adequate for the simple shaders and lighting models used in Roblox, meaning that the card is largely idle at 1080p.

Settings Recommendations

The measured data provides clear guidance for optimizing the experience. At 1080p, the High preset delivers 404 FPS, which is already far beyond the refresh rate of any mainstream monitor. The Ultra preset drops to 328 FPS, a 19% reduction from High. Given that the visual difference between High and Ultra in Roblox is often subtle, the High preset at 1080p offers the best balance of performance and fidelity, with the data showing no risk of dropping below playable levels.

At 1440p, the High preset achieves 270 FPS, which is still exceptionally high. The Medium preset offers 305 FPS, a 13% improvement over High, but with lower visual quality. The Ultra preset at 1440p drops to 219 FPS, which remains smooth on high-refresh-rate displays. The data suggests that 1440p High is the sweet spot, providing a significant visual upgrade over 1080p while maintaining frame rates that exceed 240 FPS. The Medium preset’s minimum FPS of 259 and maximum of 351 indicate stable performance, while the High preset’s lack of min/max data suggests it was not a focus of the measurement.

At 4K, the situation changes. The High preset delivers 153 FPS, which is excellent for 4K gaming. The Ultra preset drops to 124 FPS, which is still playable but represents a 19% reduction from High. The Medium preset offers 173 FPS, a 13% improvement over High, but likely with noticeable visual compromises. For 4K, the High preset is recommended as it provides the best combination of visual quality and performance, with the data showing that even the most demanding preset remains above 120 FPS. The Low preset at 4K (190 FPS) is unnecessarily high for the visual quality lost, making it a poor choice unless maximum frame rates are the sole priority.

How This Combo Ranks

The combination of the Intel Core i7-13700K and AMD Radeon RX 9070 XT ranks 895th out of 3711 tested combos in Roblox. This places it in the top 24% of all configurations. The ranking is a composite measure that accounts for performance across various resolutions and settings. Given the extremely high frame rates measured, the ranking may seem lower than expected, but it reflects that many other combos with more powerful GPUs or CPUs can achieve even higher scores in this particular game.

The rank is influenced by the fact that Roblox is not a demanding title, meaning that even mid-range hardware can achieve high frame rates. The i7-13700K and RX 9070 XT are both upper-tier components, but their combination does not necessarily yield the absolute highest scores because the game’s engine may cap performance or be limited by other factors. The 895th rank out of 3711 combos indicates that there are 894 other configurations that perform better, likely including those with top-end GPUs like the RTX 4090 or RX 7900 XTX, which can push frame rates even higher at 4K. However, the data shows that this combo is still in the top quartile, with performance that exceeds the vast majority of systems.

The CPU’s 89th percentile ranking and the GPU’s 55th percentile ranking suggest a mismatch in relative strength. The CPU is a top-tier part, while the GPU, while powerful, is not at the very apex of the performance hierarchy. In Roblox, this means the GPU is likely the limiting factor at higher resolutions, but the CPU’s strength ensures that frame rates are never held back by processor bottlenecks. The combo’s rank confirms the balance of the system, even if it does not top the charts.

Measured FPS Breakdown

The following data represents the full set of measured average frame rates for this combination. The values are presented without interpolation, directly from the benchmark results.

At 1920x1080, the system achieves the following average FPS by preset:

• Low: 502 FPS
• Medium: 457 FPS (minimum 389, maximum 526)
• High: 404 FPS
• Ultra: 328 FPS

At 2560x1440:

• Low: 335 FPS
• Medium: 305 FPS (minimum 259, maximum 351)
• High: 270 FPS
• Ultra: 219 FPS

At 3840x2160:

• Low: 190 FPS
• Medium: 173 FPS (minimum 147, maximum 198)
• High: 153 FPS
• Ultra: 124 FPS

The data shows a clear hierarchy: lower settings yield higher frame rates at every resolution, and higher resolutions consistently reduce performance. The Medium preset is the only one with min/max measurements, providing insight into frame time consistency. At 1080p, the variance is 137 FPS (389 to 526), which is a wide range but still results in an average that is smooth. At 4K, the variance narrows to 51 FPS (147 to 198), indicating that the GPU is more consistently loaded. The gap between Low and Ultra at each resolution is also telling: 174 FPS at 1080p, 116 FPS at 1440p, and 66 FPS at 4K. This diminishing gap reinforces that the GPU becomes the bottleneck at higher resolutions, making the preset choice less impactful.

FAQ

Q: What is the highest average FPS this combo can achieve?

A: The highest measured average is 502 FPS, which occurs at 1920x1080 with the Low preset.

Q: How does the 4K Ultra performance compare to 1080p Low?

A: The 4K Ultra preset yields 124 FPS, which is 378 FPS lower than the 1080p Low result of 502 FPS, representing a 75% reduction.

Q: Is the CPU or GPU more likely to be the bottleneck at 1080p?

A: The data suggests the CPU is more involved at 1080p, as the drop from Low to Ultra is 174 FPS, which is larger than at higher resolutions, indicating the GPU has more headroom.

Q: What is the minimum FPS recorded for the Medium preset?

A: The minimum FPS for the Medium preset is 389 FPS at 1920x1080, 259 FPS at 2560x1440, and 147 FPS at 3840x2160.

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

A: The combination ranks 895th out of 3711 tested combos in Roblox, placing it in the top 24% of all systems.

Q: Is the 1440p High preset a good choice for high-refresh monitors?

A: Yes, the 1440p High preset achieves 270 FPS, which exceeds the refresh rate of most high-end monitors (240Hz), providing a smooth experience.