Inside

The Intel Core i5-10400F paired with the NVIDIA GeForce RTX 5080 produces a curious dataset for Inside, a puzzle platformer from 2016. The measured frames per second (FPS) reveal a configuration that is simultaneously overqualified and surprisingly constrained. The data shows a stark reality: this GPU is so powerful that the game’s engine and the CPU’s single-thread performance become the primary arbiters of the final frame rate, rather than the raw graphical horsepower of the RTX 5080. The benchmark results indicate a system that is chasing a ceiling it can rarely hit, making the scaling patterns more revealing than the absolute numbers themselves.

Resolution Scaling

The most striking pattern in the measured data is the relatively modest impact of resolution scaling on average FPS. Moving from 1920x1080 to 3840x2160 at High settings only reduces the average frame rate from 178.2 FPS to 136.3 FPS, a drop of roughly 23.5%. This is a far smaller penalty than typically expected when pixel count quadruples. The implication is clear: the bottleneck is not the GPU’s fillrate or memory bandwidth at lower resolutions, but rather the CPU’s ability to feed the rendering pipeline.

At Low settings, the trend is even more pronounced. The 1080p Low preset achieves 235 FPS, while 4K Low drops to 178.6 FPS. The delta here is 56.4 FPS, which is a significant absolute number, but proportionally it is still a modest reduction compared to what a GPU-bound scenario would produce. The data suggests that even at 4K, the RTX 5080 is not being fully utilized. The limiting component appears to be the Intel Core i5-10400F, whose 2.90 GHz base clock and 4.30 GHz boost clock are insufficient to maintain higher frame rates when the graphical load is light.

The scaling between Medium and Ultra presets reinforces this theory. At 1440p, the difference between Low (210.9 FPS) and Ultra (159.6 FPS) is 51.3 FPS. At 4K, the same preset swing is only 46.5 FPS (178.6 to 132.1). This indicates that while the GPU is working harder at higher resolutions, the CPU is still the bottleneck, preventing the frame rate from collapsing as it would in a purely GPU-limited title. The benchmark results imply that a slower CPU would show a nearly flat line across resolutions, while a faster CPU would reveal the true, massive potential of the RTX 5080.

GPU Role

The NVIDIA GeForce RTX 5080 is a colossal piece of silicon, built on the Blackwell 2.0 architecture with a 5 nm process from TSMC. It packs 45,600 million transistors on a 378 mm² die and features 10,752 shading units. Its memory subsystem is equally formidable, with 16 GB of GDDR7 on a 256-bit bus, delivering a bandwidth of 960.0 GB/s. The GPU’s boost clock is rated at 2617 MHz, with a base clock of 2295 MHz.

In the context of Inside, this hardware is overkill. The measured FPS at 4K Ultra (132.1 FPS) is above 120, but the GPU’s specs suggest it could push far higher if the game were more demanding. The data indicates that the RTX 5080 is not the limiting factor in any of the measured rows; the game is too simple to saturate its 56.28 TFLOPS of FP32 compute power. The pixel rate of 293.1 GPixel/s and texture rate of 879.3 GTexel/s are never challenged. The GPU’s role here is to render a 2D side-scroller with ease, and its 89th percentile ranking among all GPUs (with an average benchmark score of 59188) speaks to its general capability, but in this specific title, it is effectively idling.

The GPU’s memory bandwidth is also irrelevant to the results. Even at 4K, the game’s texture and geometry demands are negligible compared to the 960.0 GB/s available. The RTX 5080’s nearest rivals in general benchmarks, such as the Intel Arc A570M (1.6% slower) and the Intel Arc Pro A60 (1.9% faster), are irrelevant here because the game’s load is so low. The data shows a GPU that is waiting for instruction, not one that is struggling to keep up.

CPU Role

The Intel Core i5-10400F is a 6-core, 12-thread processor from the Comet Lake architecture, built on Intel’s 14 nm process. It has a base clock of 2.90 GHz and a boost clock of 4.30 GHz. Its L3 cache is 12 MB shared, and it supports dual-channel DDR4 memory with a bandwidth of 42.7 GB/s. In synthetic benchmarks, it scores 10297 in Cinebench R23 multicore and 1453 in single-core, with a passmark single-thread score of 2541 and a multithread score of 12115.

This is where the bottleneck lives. Inside is a puzzle platformer that likely relies heavily on a single main thread for game logic and physics. The data supports this hypothesis. At 1080p Low, the system hits 235 FPS, which is likely near the CPU’s limit for this game’s draw call submission. The 3DMark single-thread score of 688 and the Cinebench R15 single-core score of 146 indicate that while the CPU is capable, it is not exceptional by modern standards. The 73rd percentile ranking among all CPUs (with an average benchmark score of 14168) places it in the mid-range, and its nearest rivals include the AMD EPYC 7552 (0.4% faster) and the AMD Ryzen 3 7320C (0.8% slower), which are not gaming-focused chips.

The data implies that the RTX 5080 is waiting on the CPU at every preset and resolution. The difference between 1080p High (178.2 FPS) and 4K High (136.3 FPS) is 41.9 FPS, which suggests the CPU is still the primary constraint. A faster CPU would reduce this gap, allowing the GPU to stretch its legs. The 6 cores and 12 threads are more than enough for a game like Inside, but the single-thread clock speed and IPC (instructions per cycle) of the Comet Lake architecture are the limiting factors.

Measured FPS Breakdown

The complete dataset provides a clear picture of performance across all settings. At 1920x1080, the average FPS ranges from 235 at Low to 176.4 at Ultra. The High preset sits at 178.2 FPS, while Medium achieves 212.3 FPS. The pattern is non-linear; the jump from Low to Medium is only 22.7 FPS, but the jump from Medium to High is 34.1 FPS, and from High to Ultra is a mere 1.8 FPS. This suggests that the High and Ultra presets impose similar CPU costs, or that the Ultra preset is not significantly more demanding than High in this title.

At 2560x1440, the numbers are slightly lower but follow the same trend. Low yields 210.9 FPS, Medium 192.6 FPS, High 161.9 FPS, and Ultra 159.6 FPS. The gap between High and Ultra shrinks to just 2.3 FPS, indicating a plateau. The 4K results show 178.6 FPS at Low, 163.5 FPS at Medium, 136.3 FPS at High, and 132.1 FPS at Ultra. The resolution scaling from 1440p to 4K at each preset is consistent, with a drop of roughly 20-25% across the board, which is again characteristic of a CPU-bound scenario.

The data also shows that the Low preset at 4K (178.6 FPS) is faster than the High preset at 1080p (178.2 FPS). This is a critical insight: the preset selection has a larger impact on performance than the resolution. This means that players can prioritize visual fidelity at lower resolutions without sacrificing frame rate, or they can push resolution up while keeping settings low to maintain high refresh rates.

How This Combo Ranks

The combination of the Intel Core i5-10400F and the NVIDIA GeForce RTX 5080 ranks 704th out of 1671 tested combos for Inside. This places it in the 42nd percentile of all systems tested, meaning that 58% of the tested combos perform better in this specific game. This is a surprising result for a system with an RTX 5080, which is a top-tier GPU.

The ranking is dragged down by the CPU. A combo with a more modern, higher-clock processor would rank significantly higher, as the GPU is not the constraint. The data suggests that the i5-10400F is holding back the RTX 5080, preventing it from achieving frame rates that would place this combo in the top 10% or higher. The 704th rank implies that many other systems with slower GPUs but faster CPUs are outperforming this pairing in Inside. This is a classic example of a mismatch: the GPU is capable of 4K Ultra at over 130 FPS, but the CPU limits the system to a level where a mid-range GPU could potentially match it if paired with a better processor.

Settings Recommendations

Based on the measured rows, the optimal experience balances frame rate and visual quality. For players with a 60 Hz display, any preset at any resolution is sufficient, as even the lowest measured average (132.1 FPS at 4K Ultra) is well above 60. However, for high-refresh-rate monitors (144 Hz or 240 Hz), the choices are more constrained.

At 1080p, only the Low preset (235 FPS) reaches beyond 240 Hz. The Medium preset (212.3 FPS) is suitable for a 200 Hz display, while High (178.2 FPS) and Ultra (176.4 FPS) are adequate for 165 Hz panels. At 1440p, the Low preset (210.9 FPS) is the only one that clears 200 Hz; Medium (192.6 FPS) is close, but High (161.9 FPS) and Ultra (159.6 FPS) are better suited for 144 Hz displays. At 4K, the Low preset (178.6 FPS) is the only one that exceeds 165 Hz; Medium (163.5 FPS) is good for 144 Hz, while High (136.3 FPS) and Ultra (132.1 FPS) are best for 120 Hz panels.

The data suggests that the High preset offers the best visual fidelity to performance ratio for 144 Hz gaming at 1440p, while the Low preset is necessary for 240 Hz at 1080p. For 4K, the Low preset is the only way to approach 180 FPS, but the Ultra preset is still perfectly playable at 132.1 FPS for those who prioritize image quality over raw speed. Given the CPU bottleneck, there is little reason to choose Medium over Low at any resolution, as the FPS gain is modest, and the visual difference in a puzzle platformer may be negligible.

FAQ

Q: Why is the FPS so high even at 4K with an older CPU?

A: The game Inside is a 2016 puzzle platformer with low graphical demands. The RTX 5080 can render it at 4K Ultra with 132.1 FPS, and the i5-10400F, despite its age, is sufficient to maintain these high frame rates because the game’s CPU load is not extreme.

Q: Is the RTX 5080 being fully utilized in this game?

A: No. The data shows that the CPU is the bottleneck. The FPS scaling from 1080p to 4K is relatively flat, indicating that the GPU is not the limiting factor. The RTX 5080’s capabilities far exceed the game’s requirements.

Q: What is the best resolution for a 144 Hz monitor?

A: At 1440p, the High preset (161.9 FPS) and Ultra preset (159.6 FPS) both exceed 144 Hz. At 4K, the Low preset (178.6 FPS) and Medium preset (163.5 FPS) also exceed 144 Hz, making them viable options for a 144 Hz 4K display.

Q: How does this combo rank compared to other systems?

A: This combo ranks 704th out of 1671 tested combinations for Inside. This places it in the lower half of tested systems, primarily because the i5-10400F limits the potential of the RTX 5080.

Q: Is there a significant performance difference between High and Ultra settings?

A: The data shows a minimal difference. At 1080p, the gap is 1.8 FPS (178.2 vs 176.4). At 1440p, it is 2.3 FPS (161.9 vs 159.6). At 4K, it is 4.2 FPS (136.3 vs 132.1). The Ultra preset is slightly slower but offers no major FPS penalty.

Q: Can this system achieve 240 FPS at 1080p?

A: Yes, but only at Low settings, where it measures 235 FPS. All other presets at 1080p fall below 240 FPS, with Medium at 212.3 FPS being the next fastest.