Roblox

Resolution Scaling

The measured FPS data for Roblox with the Intel Core i5-14400F and NVIDIA GeForce RTX 3080 shows a clear pattern of frame rate scaling as resolution increases. At 1920x1080 with High settings, the combo produces 386 FPS average. Moving to 2560x1440 High drops that to 260 FPS, a reduction of roughly one-third from the 1080p result. At 3840x2160 High, the average falls further to 145 FPS. This represents a 62.4% decrease from the 1080p High figure, which is substantial.

The scaling pattern suggests that at 1080p, the workload is not heavily taxing the GPU, as the frame rates are extremely high, even 483.4 FPS at Low settings. At this resolution, the CPU's single-thread performance likely becomes a more significant factor, since Roblox is a sandbox title that often relies on a limited number of threads for game logic. At 4K, the GPU is clearly the limiting component, as the frame rates drop to a range (119.4 to 179.8 FPS across settings) that is more consistent with typical GPU-bound behavior.

The delta between Low and Ultra settings at each resolution is telling. At 1080p, Low yields 483.4 FPS while Ultra yields 312.8 FPS, a spread of 170.6 FPS. At 4K, the spread narrows to 60.4 FPS (179.8 Low vs 119.4 Ultra). This narrowing at higher resolution indicates that the GPU's pixel throughput becomes the bottleneck, compressing the performance differences between quality presets. The data shows a smooth, expected progression: each resolution step up reduces the average FPS, and each settings step up also reduces it, with the effects compounding.

How This Combo Ranks

The combo ranks 571st out of 1800 tested combinations for Roblox, placing it in the 68th percentile of all combos in the database. This is a solid mid-to-upper tier position, though not elite. The rank reflects that while the RTX 3080 is a high-end GPU, Roblox is not a demanding title for modern hardware, so many lower-tier GPUs paired with stronger CPUs can achieve similar or better frame rates in this specific game.

The CPU itself ranks in the 88th percentile against all CPUs, with an average benchmark score of 32508. Its nearest rivals include the Intel Core i7-12800H (score 32513, delta 0%), AMD Ryzen 5 PRO 7645 (score 32446, delta 0.2%), AMD Ryzen 7 250 (score 32584, delta -0.2%), and Intel Core i7-13705H (score 32586, delta -0.2%). These deltas are all within 0.2% of each other, indicating the i5-14400F sits in a very tightly clustered performance band. The GPU ranks in the 80th percentile against all GPUs, with an average benchmark score of 35787. Its nearest rivals are the AMD Radeon Pro Duo (score 35860, delta -0.2%), AMD Radeon 880M (score 35646, delta 0.4%), AMD Radeon RX 7900 GRE (score 36101, delta -0.9%), and NVIDIA GeForce RTX 5070 Ti Mobile (score 35435, delta 1%). The GPU's score is within 1% of these rivals, showing it remains competitive despite being end-of-life.

The 571st rank out of 1800 combos suggests that while the individual components are strong, the combination is not optimized for Roblox specifically. The game's engine appears to favor different hardware characteristics, and the data indicates that the CPU's performance ceiling is more relevant than the GPU's raw power in this title.

GPU Role

The NVIDIA GeForce RTX 3080 features 10 GB of GDDR6X memory on a 320-bit bus, delivering 760.3 GB/s of bandwidth. The memory clock runs at 1188 MHz, effective 19 Gbps. The GPU has 8704 shading units, 272 texture mapping units, and 96 ROPs. Its base clock is 1440 MHz with a boost clock of 1710 MHz. The chip is the GA102, built on Samsung's 8 nm process with 28,300 million transistors on a 628 mm² die.

In Roblox, the measured FPS data shows that the GPU is rarely saturated at lower resolutions. At 1080p Low, the average FPS of 483.4 indicates the GPU has ample headroom, the frame rate is likely constrained by the CPU or game engine limits rather than the GPU's pixel throughput. At 4K Ultra, the average of 119.4 FPS is still high for a 4K workload, demonstrating that the RTX 3080's 760.3 GB/s bandwidth and 164.2 GPixel/s pixel rate are more than sufficient for this game's visual complexity.

The GPU's compute capabilities, including 29.77 TFLOPS FP32 and 29.77 TFLOPS FP16 (1:1), are largely irrelevant for Roblox, which does not stress compute-heavy features. The 68 RT cores and 272 tensor cores are similarly underutilized in this sandbox title. The 10 GB VRAM capacity is more than adequate for Roblox at any resolution, as the game's texture and geometry demands are modest. The benchmark results indicate the GPU's PassMark G3D score of 25086 places it well above average, but in Roblox the practical limit comes from elsewhere.

Measured FPS Breakdown

At 1920x1080, the data shows the following average FPS values: Low settings produce 483.4 FPS, Medium produces 438 FPS, High produces 386 FPS, and Ultra produces 312.8 FPS. The progression from Low to Ultra reduces frame rates by 35.3%, with each step up in quality costing a meaningful chunk of performance. The gap between Medium and High is 52 FPS, while the gap between High and Ultra is 73.2 FPS, the latter being the largest single-step drop at this resolution.

At 2560x1440, the averages are: Low 322.5 FPS, Medium 294.3 FPS, High 260 FPS, and Ultra 208.2 FPS. The drop from Low to Ultra is 114.3 FPS, a 35.4% reduction. Compared to 1080p, every setting loses roughly 25-30% of its frame rate, which is consistent with the increased pixel count. The High setting at 1440p (260 FPS) is actually higher than the Ultra setting at 1080p (312.8 FPS), showing that resolution has a larger impact than settings in this game.

At 3840x2160, the averages are: Low 179.8 FPS, Medium 163.3 FPS, High 145 FPS, and Ultra 119.4 FPS. The step from Low to Medium is 16.5 FPS, from Medium to High is 18.3 FPS, and from High to Ultra is 25.6 FPS. The Ultra setting at 4K is the lowest measured value in the entire dataset, yet it still clears 119 FPS, meaning the combo delivers playable frame rates even at maximum quality and resolution. The 4K Low result of 179.8 FPS is higher than the 1440p Ultra result of 208.2 FPS, confirming that settings and resolution trade off roughly evenly.

CPU Role

The Intel Core i5-14400F is a 10-core, 16-thread processor based on Raptor Lake architecture, manufactured on Intel's 10 nm process. It has a base clock of 2.50 GHz and a boost clock of 4.70 GHz, with a 65 W TDP. The cache hierarchy includes 80 KB L1 per core, 1.25 MB L2 per core, and 20 MB shared L3. The CPU supports DDR4 and DDR5 memory in dual-channel configuration, and it uses PCIe Gen 5 with 16 lanes.

In Roblox, the CPU's single-thread performance is likely the dominant factor at lower resolutions. The PassMark single-thread score of 3723 and Cinebench R23 single-core score of 3093 indicate strong per-core performance, which is critical for a game that often runs on one or two primary threads. The 4.70 GHz boost clock helps maintain high frame rates when the game logic is the bottleneck. At 1080p Low, the 483.4 FPS average suggests the CPU is still keeping up with the GPU's output, though the frame rate ceiling may be imposed by the game's simulation rate rather than the CPU's raw capability.

The multi-thread scores, Cinebench R23 multi-core of 21914, Cinebench R20 multi-core of 9203, and PassMark multi-thread of 25783, show that the 10 cores provide ample parallel throughput. However, Roblox's sandbox nature means it rarely utilizes all 16 threads effectively. The 20 MB shared L3 cache helps with data locality, but the game's modest memory footprint means cache size is not a limiting factor. The CPU's 88th percentile ranking against all CPUs, with a delta of less than 0.2% from its closest rivals, shows it is a well-rounded performer that neither elevates nor constrains the combo in Roblox.

FAQ

Q: What is the average FPS at 4K Ultra settings?

A: The measured average FPS at 3840x2160 with Ultra settings is 119.4 FPS, which is the lowest value in the dataset but still comfortably above 60 FPS.

Q: How does the combo rank among all tested combinations in Roblox?

A: The combo ranks 571st out of 1800 total combinations, placing it in the upper 68th percentile for this game.

Q: What are the nearest CPU rivals in terms of average benchmark score?

A: The Intel Core i7-12800H scores 32513 (delta 0%), the AMD Ryzen 5 PRO 7645 scores 32446 (delta 0.2%), the AMD Ryzen 7 250 scores 32584 (delta -0.2%), and the Intel Core i7-13705H scores 32586 (delta -0.2%). All are within 0.2% of the i5-14400F's 32508 average.

Q: What is the GPU's VRAM capacity and bandwidth?

A: The RTX 3080 has 10 GB of GDDR6X memory on a 320-bit bus, providing 760.3 GB/s of bandwidth with an effective memory clock of 19 Gbps.

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

A: At 1920x1080, Low settings produce 483.4 FPS while Ultra produces 312.8 FPS, a difference of 170.6 FPS.

Q: What is the CPU's boost clock and core count?

A: The Intel Core i5-14400F has 10 cores and 16 threads, with a boost clock of 4.70 GHz and a base clock of 2.50 GHz.