Roblox

Roblox is not a typical benchmark stress-test, yet the measured frame rates for this Intel Core i7-14700KF and AMD Radeon RX 7800 XT combination reveal a fascinating profile of a system that is massively over-qualified for the title, shifting the bottleneck entirely based on resolution and settings. The data shows a sandbox game that scales predictably with GPU load, but the sheer headroom means the experience is defined by how much of the hardware you can actually engage.

Resolution Scaling — how FPS drops from 1080p to 4K and what it says about the limiting component

The frame rate deltas across resolutions tell a clear story of a CPU-bound system at lower resolutions that gradually transitions toward GPU saturation at 4K. At the High preset, the average FPS drops from 362.4 at 1920x1080 to 240.8 at 2560x1440, a 33.6% reduction, and then further to 137 at 3840x2160, which is a 43.1% drop from 1440p. This pattern is steep but not catastrophic, suggesting that even at 4K Ultra, the system maintains playable performance.

What is more revealing is the Low preset behavior. At 1080p Low, the system pushes 448.8 FPS, but at 1440p Low it only drops to 299.1 FPS (a 33.4% decrease), and at 4K Low it maintains 170.6 FPS. The fact that Low settings at 1080p nearly hit the 450 FPS mark indicates that the CPU is the primary limiter at that point, as the GPU has very little work to do. The gap between Low and Ultra at 1080p is 155.2 FPS (448.8 vs 293.6), but at 4K that gap narrows to 56.8 FPS (170.6 vs 113.8), directly demonstrating that the GPU becomes more relevant as pixel count rises.

The scaling efficiency from 1440p to 4K at Medium settings (272.4 down to 153.6, a 43.6% drop) is nearly identical to the High preset's drop, suggesting that the rendering pipeline is consistently pixel-bound rather than shader-bound in this game. Roblox's simplistic geometry means that the RX 7800 XT's 96 ROPs and 624.1 GB/s memory bandwidth are not being taxed by complex effects, but rather by raw fill-rate requirements at higher resolutions.

GPU Role — VRAM, clocks, and how they relate to this game's results

The Radeon RX 7800 XT brings 16 GB of GDDR6 memory on a 256-bit bus, which is far beyond what Roblox could realistically consume, but the boost clock of 2430 MHz and game clock of 2124 MHz are the more relevant figures here. The data shows that at 4K Ultra, the average FPS drops to 113.8, which is still above 60 but represents the only test below the 120 FPS threshold. This suggests that the GPU's 37.32 TFLOPS of FP32 performance is the limiting factor at that extreme, but only barely.

The memory configuration is essentially irrelevant for this title, as Roblox's blocky textures and simple materials would struggle to exceed even 4 GB of VRAM usage, let alone 16 GB. What matters more is the GPU's ability to maintain high clocks under light load, and the benchmark results indicate that the RX 7800 XT can push frame rates that are 2-3 times higher than typical AAA titles at the same resolution. The percentile ranking of 76 for all GPUs confirms that this is a mid-to-high tier card, but in Roblox it behaves like a top-tier solution because the game's renderer does not utilize the advanced features like ray tracing (60 RT cores present but likely unused) or heavy compute workloads.

FAQ — 4-6 Q&A pairs answerable from FACT PACK data

Q: Is the Intel Core i7-14700KF or the AMD Radeon RX 7800 XT the bottleneck in Roblox at 1080p?

A: At 1920x1080 with Low settings, the system achieves 448.8 FPS, which is only 51.2 FPS higher than the Medium preset's 410.3 FPS. This small delta between Low and Medium at 1080p, compared to the 56.8 FPS delta at 4K, indicates the CPU (20 cores, 28 threads, boost clock 5.60 GHz) is the limiting component at 1080p, as the GPU has spare capacity.

Q: What is the best resolution for this combo if the goal is to exceed 240 FPS?

A: The data shows that only the 2560x1440 Low preset (299.1 FPS) and High preset (240.8 FPS) achieve frame rates above 240 at that resolution. At 1080p, all presets except Ultra (293.6 FPS) exceed 360 FPS, with Low hitting 448.8 FPS. At 4K, no preset reaches 240 FPS, with the maximum being 170.6 FPS on Low.

Q: How does the CPU's single-core performance affect Roblox's results?

A: The i7-14700KF scores 6290 in Cinebench R23 single-core and 4480 in Passmark single-thread. Since Roblox is often limited by single-threaded game logic, these scores explain why the system can hit 448.8 FPS at 1080p Low, as the high single-core boost clock of 5.60 GHz provides the necessary instruction throughput.

Q: Does the Ultra preset provide a playable experience at 4K?

A: Yes, the 3840x2160 Ultra preset averages 113.8 FPS, which is above the 60 FPS standard for smooth play. However, it is 56.8 FPS lower than the 4K Low preset (170.6 FPS), indicating that Ultra settings impose a significant GPU penalty without necessarily being required for Roblox's visual style.

Q: What is the frame rate difference between Medium and High at 1440p?

A: At 2560x1440, the Medium preset averages 272.4 FPS while High averages 240.8 FPS, a difference of 31.6 FPS (or 13.1% faster on Medium). This is a smaller relative gap than the 28.1 FPS difference at 4K between the same two presets (153.6 vs 137), suggesting that High settings add GPU work that is more noticeable at higher pixel counts.

Q: How does this combo's rank of 687 out of 1800 compare to its raw performance?

A: Despite ranking in the 38th percentile of all tested combos (687/1800), the measured FPS are exceptionally high because Roblox is not a demanding title. The rank reflects that many other combos with higher-end GPUs or CPUs achieve similar or better FPS in this game, but the absolute frame rates here are still far above playable thresholds.

How This Combo Ranks — use comboRankInGame vs other tested combos

With a combo rank of 687 out of 1800 tested configurations, this system sits in the upper-middle tier for Roblox specifically. This ranking is surprisingly low given the hardware's raw power, but it makes sense when considering that Roblox's engine is likely capped by CPU clock speed and game logic rather than GPU muscle. The i7-14700KF's nearest rival, the Core i7-14700K, has an average benchmark score of 70074 (a delta of 0%), meaning they are functionally identical in synthetic tests, so the ranking difference is likely due to GPU variations.

The RX 7800 XT's nearest rival, the AMD FirePro S9300 X2, has a delta of 0.2% in average score, yet the S9300 X2 is a compute-focused card that would perform differently in gaming. This suggests that the combo rank is influenced by the fact that many other combos pair faster GPUs (like the RX 7900 series or RTX 4080) with similar CPUs, pushing them higher in the rankings. The 1800-combo pool means that 1113 other combinations achieve better frame rates in Roblox, but given that this setup already exceeds 113.8 FPS at 4K Ultra, the diminishing returns of higher-ranked combos are minimal for actual gameplay.

Measured FPS Breakdown — resolution by resolution, settings by settings, exact numbers

At 1920x1080, the system demonstrates its peak performance: Low settings produce 448.8 FPS, Medium drops to 410.3 FPS, High achieves 362.4 FPS, and Ultra settles at 293.6 FPS. The spread of 155.2 FPS between Low and Ultra shows that even the heaviest preset leaves significant headroom over 240 FPS.

Moving to 2560x1440, the numbers compress: Low delivers 299.1 FPS, Medium 272.4 FPS, High 240.8 FPS, and Ultra 195.6 FPS. Here, the Ultra preset finally falls below 240 FPS, but all others remain above that threshold. The 1440p results show a more linear scaling, with each step from Low to Ultra costing roughly 25-35 FPS.

At 3840x2160, the pattern shifts dramatically: Low averages 170.6 FPS, Medium 153.6 FPS, High 137 FPS, and Ultra 113.8 FPS. The delta between Low and Ultra is 56.8 FPS, which is less than half the 1080p spread, confirming that the GPU is now the primary constraint. All 4K presets stay above 100 FPS, which is impressive for a game not known for graphical fidelity.

Settings Recommendations — which preset gives the best experience per the measured rows

For a 1080p monitor, the High preset at 362.4 FPS is the sweet spot, as it offers a meaningful visual upgrade over Medium (410.3 FPS) while still delivering frame rates that far exceed any display refresh rate. The 48.1 FPS cost of going from High to Ultra (362.4 to 293.6) is not worth it for a game like Roblox where visual differences between High and Ultra are likely minimal.

At 1440p, High (240.8 FPS) is the recommended choice for 240 Hz monitors, as it sits just above the 240 FPS threshold. If a 144 Hz display is the target, Medium (272.4 FPS) provides a comfortable buffer and better visual quality than Low (299.1 FPS). Ultra at 195.6 FPS is acceptable for 144 Hz but leaves no headroom for frame time spikes.

For 4K, the Low preset (170.6 FPS) is the only option that clears 144 Hz, but Medium (153.6 FPS) and High (137 FPS) are both excellent for 120 Hz displays. Ultra at 113.8 FPS is still above 100 FPS and suitable for high-refresh 4K panels, but the 36.8 FPS drop from High to Ultra suggests that the visual gains are not worth the performance cost. Given Roblox's art style, Medium at 4K (153.6 FPS) offers the best balance of fidelity and speed.

CPU Role — cores, clocks, and how they relate to this game's results

The Intel Core i7-14700KF is a 20-core, 28-thread processor with a base clock of 3.40 GHz and a boost clock of 5.60 GHz, and its high single-core performance is the key to Roblox's excellent low-resolution frame rates. The data shows that at 1080p Low, the system hits 448.8 FPS, which is likely a soft cap imposed by the CPU's ability to process game physics and logic. The Cinebench R23 single-core score of 6290 and Passmark single-thread score of 4480 confirm that this chip is among the fastest for single-threaded workloads, which is exactly what Roblox's engine relies on.

The 33 MB of shared L3 cache and 2 MB per-core L2 cache help maintain low latency for the game's object-heavy scenes, which often involve thousands of player-created parts. In comparison to the nearest CPU rivals, the i7-14700KF's average benchmark score of 70104 is within 0.4% of the AMD Ryzen 9 9950X (70420), meaning that any CPU bottleneck in Roblox would be nearly identical across these high-end chips. The fact that the frame rate drops by 35% from 1080p Low to 1440p Low (448.8 to 299.1) while the CPU load stays constant indicates that the CPU is not the limiter at higher resolutions, but at 1080p it absolutely is, as the GPU could likely render even faster if the CPU could feed it more frames.