Roblox

The Intel Core i5-11400F paired with the NVIDIA GeForce RTX 3080 Ti is a high-end configuration that delivers exceptional frame rates in Roblox, ranking 493rd out of 1,800 tested combos. This places the combo in the top 27% of all systems tested, a strong result driven primarily by the GPU's immense power, though the data reveals interesting CPU-bound behaviors at lower resolutions. The measured results show this pairing is overkill for the game's engine at 1080p, with performance becoming more balanced and GPU-dependent as resolution scales to 4K.

How This Combo Ranks

The combination of the Core i5-11400F and RTX 3080 Ti achieves a combo rank of 493 out of 1,800 tested configurations. This percentile positioning indicates the system sits comfortably in the upper echelon of tested hardware, though it is not at the absolute top, suggesting that other CPU-GPU pairings can extract slightly more performance in Roblox. The ranking reflects a system that is heavily GPU-accelerated, as the RTX 3080 Ti sits in the 83rd percentile among all GPUs, while the Core i5-11400F places in the 75th percentile among all CPUs.

The CPU's average benchmark score of 17,181 places it in close competition with several mobile and low-power processors, including the AMD Ryzen 7 5700U with a delta of 0%, the Intel Core i7-1260P at -0.2%, and the Intel Core Ultra 7 164U at -0.2%. This indicates that while the i5-11400F is a solid desktop part, its raw compute scores are nearly identical to efficient laptop chips, which is notable for a game like Roblox that often relies on single-threaded performance. The GPU, conversely, scores an average of 41,224, sitting just behind the RTX 3090 by -0.5% and the AMD Radeon Pro 5300 by -0.9%, showing it is a top-tier graphics solution.

GPU Role

The RTX 3080 Ti is the dominant component in this pairing, and its specifications align perfectly with the high frame rates observed. The card features 12 GB of GDDR6X memory on a 384-bit bus, providing a massive 912.4 GB/s of memory bandwidth. This bandwidth is critical for feeding the 10,240 shading units and 112 ROPs at high resolutions, allowing the card to maintain high throughput even when rendering complex Roblox scenes. The GPU's boost clock of 1665 MHz, combined with a base clock of 1365 MHz, enables a peak FP32 throughput of 34.10 TFLOPS.

In the context of Roblox, the GPU's role becomes more pronounced as resolution increases. The card's 80 RT cores and 320 tensor cores are largely idle in this sandbox title, but its raw rasterization power ensures that even at 4K Ultra settings, the system maintains an average of 124.6 FPS. The memory configuration is particularly relevant at 4K, where the 12 GB frame buffer and 912.4 GB/s bandwidth prevent any form of memory throttling, allowing the GPU to operate at its full potential. The data shows that the GPU is never the bottleneck at 1080p, but it becomes the primary driver of performance at 4K.

Resolution Scaling

The performance scaling from 1080p to 4K reveals a clear transition from a CPU-limited scenario to a GPU-limited one. At 1080p Low settings, the system achieves 503.8 FPS, but this drops to 336 FPS at 1440p and further to 188.7 FPS at 4K. This represents a 62.5% reduction in frame rate from 1080p to 4K at Low settings, indicating that the CPU is holding back the GPU at lower resolutions. The frame rate drop is more severe at higher settings, with Ultra settings showing a 61.8% reduction from 324.7 FPS at 1080p to 124.6 FPS at 4K.

The data suggests that the Core i5-11400F's six cores and twelve threads, with a boost clock of 4.40 GHz, are sufficient to keep up with the RTX 3080 Ti at 1080p, but the GPU's headroom is capped. As resolution increases, the GPU's workload grows, and the frame rates scale more predictably with the GPU's capabilities. The difference between Low and Ultra settings at 4K is 64.1 FPS (188.7 vs 124.6), while at 1080p the difference is 179.1 FPS (503.8 vs 324.7). This wider gap at 1080p confirms that the CPU-bound nature of low-resolution gameplay is the limiting factor, whereas at 4K, the GPU's rendering load becomes the primary constraint.

Measured FPS Breakdown

At 1080p, the system delivers exceptionally high frame rates across all settings, making it ideal for high-refresh-rate monitors. Low settings produce an average of 503.8 FPS, which is the highest recorded result. Medium settings yield 454.1 FPS, High settings drop to 401.5 FPS, and Ultra settings still manage 324.7 FPS. The scaling from Low to Ultra at 1080p shows a 35.6% performance penalty, which is relatively modest given the graphical improvements.

Moving to 1440p, the frame rates remain highly playable and continue to exceed 200 FPS in all configurations. Low settings average 336 FPS, Medium settings achieve 305.8 FPS, High settings reach 271.5 FPS, and Ultra settings produce 217.1 FPS. The gap between Low and Ultra at 1440p is 118.9 FPS, showing that the GPU is beginning to take on more of the rendering load.

At 4K, the system still delivers excellent performance, though the frame rates become more moderate. Low settings average 188.7 FPS, Medium settings hit 173.1 FPS, High settings reach 152.5 FPS, and Ultra settings drop to 124.6 FPS. The difference between Low and Ultra at 4K is 64.1 FPS, which is a smaller absolute gap than at lower resolutions, indicating that the GPU is nearing its limits. Across all resolutions and settings, the lowest recorded average is 124.6 FPS at 4K Ultra, which remains far above the typical 60 FPS target for smooth gameplay.

FAQ

Q: Is the Intel Core i5-11400F a bottleneck for the RTX 3080 Ti in Roblox?

A: At 1080p, yes. The frame rate difference between Low (503.8 FPS) and Ultra (324.7 FPS) settings is 179.1 FPS, which is larger than at higher resolutions. This indicates the CPU limits performance at 1080p. At 4K, the GPU becomes the limiting factor, as the difference between Low and Ultra narrows to 64.1 FPS.

Q: What is the best resolution to play Roblox with this combo?

A: 1440p offers the best balance, with all settings producing over 217 FPS. The system can also handle 4K Ultra at 124.6 FPS, but 1440p High (271.5 FPS) and Ultra (217.1 FPS) provide a smoother experience while taking advantage of the GPU's power.

Q: How does the RTX 3080 Ti compare to its nearest rivals in overall GPU benchmarks?

A: The RTX 3080 Ti has an average benchmark score of 41,224, placing it just behind the RTX 3090 by -0.5% and the AMD Radeon Pro 5300 by -0.9%. It also trails the RTX 5070 by -1.1%, showing it remains competitive with newer cards.

Q: Does the Core i5-11400F's CPU benchmark score indicate it is a weak processor?

A: No, its average score of 17,181 places it in the 75th percentile of all CPUs. However, its nearest rivals include mobile chips like the AMD Ryzen 7 5700U (0% delta) and Intel Core i7-1260P (-0.2% delta), showing it performs similarly to efficient laptop processors in synthetic tests.

Q: What is the highest frame rate recorded for this combo?

A: The highest average frame rate is 503.8 FPS, achieved at 1920x1080 with Low settings. This is the only configuration that exceeds 500 FPS, though 1080p Medium (454.1 FPS) and High (401.5 FPS) also provide exceptional performance.

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

A: The frame rate drops from 324.7 FPS at 1080p Ultra to 124.6 FPS at 4K Ultra, a reduction of 200.1 FPS. This represents a 61.6% decrease, highlighting the significant GPU workload increase at 4K.