Fortnite

Fortnite with the Intel Core i5-12600KF and NVIDIA GeForce RTX 5090 D presents a dataset that separates the CPU’s capability from the GPU’s raw throughput more cleanly than most titles. The measured frame rates across three resolutions and four settings tiers show a system that is overwhelmingly GPU-bound at high visual loads, yet reveals the processor’s limits when settings are lowered. The data indicates a combination that can drive competitive frame rates at 1080p and 1440p, but which sees a steep drop-off at 4K Ultra that aligns with the GPU’s positioning relative to other tested hardware.

Resolution Scaling

The measured FPS data shows a clear and consistent pattern: as resolution increases, average frame rates fall, but the magnitude of that drop depends heavily on the selected settings preset. At Low settings, the transition from 1920x1080 to 2560x1440 reduces the average from 469 FPS to 332 FPS, a decline of approximately 29%. Moving from 2560x1440 to 3840x2160 at Low brings the average down to 175 FPS, another 47% reduction from the 1440p figure. This steep scaling at Low settings indicates that the GPU’s pixel throughput is the dominant constraint, as the CPU is able to feed frames at a very high rate when the graphical load is minimal.

At High settings, the scaling is less aggressive in percentage terms but still substantial. The 1080p average of 285 FPS drops to 181 FPS at 1440p (a 36% reduction) and then to 96 FPS at 4K (a 47% drop from 1440p). Medium settings follow a similar trajectory: 368 FPS at 1080p, 234 FPS at 1440p, and 123 FPS at 4K. The Ultra preset shows the most dramatic absolute scaling, with 188 FPS at 1080p falling to 120 FPS at 1440p and then to 63 FPS at 4K. The 4K Ultra figure is only about one-third of the 1080p Ultra result, which suggests that the RTX 5090 D is being pushed to its limits by the combination of high resolution and maximum graphical features.

The pattern across all settings is that the largest percentage drop occurs between 1440p and 4K, rather than between 1080p and 1440p. This is consistent with the GPU’s memory bandwidth and shading capacity being the limiting factor at 4K, whereas at lower resolutions the system has more headroom. The data also shows that at 1080p Low, the system achieves 469 FPS, which is a figure that likely approaches the CPU’s ability to submit draw calls and process game logic, indicating that the i5-12600KF is not entirely irrelevant in this configuration.

CPU Role

The Intel Core i5-12600KF is a 10-core, 16-thread processor based on the Alder Lake architecture, with a base clock of 3.70 GHz and a boost clock of 4.90 GHz. Its benchmark scores place it in the 79th percentile among all CPUs, with an average benchmark score of 27799. Compared to its nearest rivals, the i5-12600KF is essentially tied with the Intel Core i9-10900K (deltaPct -0.3%), the AMD Ryzen 7 5800X3D (deltaPct -0.3%), and the AMD Ryzen 7 6800U (deltaPct -0.3%), while slightly ahead of the AMD Ryzen 5 8500GE (deltaPct 0.3%). This indicates that the CPU’s multi-threaded performance is competitive with older high-end parts, but it is not a standout in absolute terms.

In Fortnite, the CPU’s role is most visible at lower resolutions and settings where the GPU is not fully saturated. At 1080p Low, the system reaches 469 FPS, which is a strong result but likely constrained by the CPU’s single-thread performance. The i5-12600KF scores 1016 in the 3DMark single-thread test and 3925 in PassMark single-thread, figures that are respectable but not class-leading. The boost clock of 4.90 GHz helps in this scenario, as Fortnite’s engine tends to favor high-frequency cores for frame generation. The 20 MB of shared L3 cache and 1.25 MB L2 per core also contribute to keeping frequently accessed data close to the execution units.

When settings are raised to Ultra at 1080p, the average FPS drops to 188, which is a 60% reduction from the Low preset. This indicates that the CPU is no longer the primary bottleneck at Ultra settings, as the GPU’s workload increases significantly. The CPU’s 10 cores and 16 threads are more than sufficient for Fortnite’s multi-threaded rendering tasks, and the data shows that the system does not appear to be held back by core count or thread scheduling at any resolution tested. The i5-12600KF’s performance relative to its rivals suggests that a stronger CPU, such as one with higher single-thread scores, might yield marginal gains at 1080p Low, but the measured differences between settings are dominated by GPU load rather than CPU capability.

GPU Role

The NVIDIA GeForce RTX 5090 D is a massive GPU in every respect: 32 GB of GDDR7 memory on a 512-bit bus, a bandwidth of 1.79 TB/s, and a boost clock of 2407 MHz. It has 21760 shading units, 680 texture mapping units, and 176 ROPs, with a pixel rate of 423.6 GPixel/s and a texture rate of 1,636.8 GTexel/s. Its FP32 performance is rated at 104.8 TFLOPS. The GPU sits in the 92nd percentile among all GPUs, with an average benchmark score of 77712. Its nearest rivals in the benchmark database are the AMD Radeon RX 6650M XT (deltaPct 1.1%), the AMD Radeon RX 6850M XT (deltaPct -1.6%), and two NVIDIA Tesla P100 variants (deltaPct -2.1% and -2.4%). This places the RTX 5090 D slightly behind the RX 6850M XT and ahead of the RX 6650M XT in aggregate benchmark scores, though these are mobile-oriented parts and the comparison is not direct.

In Fortnite, the GPU’s role is most evident at 4K resolution and higher settings. At 4K Ultra, the system averages 63 FPS, which is a playable but not high-refresh-rate figure. The 4K High preset yields 96 FPS, while 4K Medium reaches 123 FPS, and 4K Low hits 175 FPS. These numbers show that the RTX 5090 D is capable of 4K gaming, but the Ultra preset imposes a heavy cost. The GPU’s 32 GB of VRAM is far more than Fortnite requires, so memory capacity is not a limiting factor in this title. Instead, the pixel fill rate and shading throughput are the likely constraints at 4K, as the resolution demands a massive number of operations per frame.

The GPU’s clock behavior also matters. With a base clock of 2017 MHz and a boost of 2407 MHz, the RTX 5090 D maintains high frequencies under load, which helps sustain frame rates in GPU-bound scenarios. The 1.79 TB/s bandwidth is particularly relevant for texture streaming and high-resolution rendering, and the data suggests that the GPU is the primary driver of performance differences between resolutions. At 1080p, the GPU is not fully utilized at Low settings, as evidenced by the 469 FPS figure, but at 4K Ultra, it is clearly the limiting component, as the CPU has ample headroom to feed frames.

How This Combo Ranks

The combination of the Intel Core i5-12600KF and NVIDIA GeForce RTX 5090 D ranks 25th out of 2740 tested combos in Fortnite. This places it in the top 1% of all configurations in the database, which is a strong result given that the CPU is not a top-tier part. The ranking reflects the GPU’s dominance in this title, as the RTX 5090 D’s high-end specifications drive performance more than the CPU’s mid-range position. The fact that the combo ranks 25th suggests that a handful of configurations with faster processors achieve slightly higher frame rates, but the gap is likely small given the GPU-bound nature of most tested scenarios.

The CPU’s percentile rank of 79 versus the GPU’s percentile rank of 92 highlights the imbalance in this pairing. While the GPU is near the top of its class, the CPU is merely above average, which means that in CPU-limited scenarios (such as 1080p Low), the combo may not extract the full potential of the RTX 5090 D. However, the measured data shows that even at 1080p Low, the system achieves 469 FPS, which is far beyond what most displays can show. The combo’s 25th place ranking indicates that it outperforms the vast majority of tested systems, and the only combos ahead of it likely feature more capable processors that can push even higher frame rates at low settings.

Measured FPS Breakdown

The measured FPS data provides a complete picture of the combo’s performance across nine resolution/settings combinations. At 1920x1080, the Low preset delivers an average of 469 FPS, Medium averages 368 FPS (with a minimum of 312 and maximum of 423), High averages 285 FPS, and Ultra averages 188 FPS. The spread from Low to Ultra is 281 FPS, which shows how much headroom the GPU has when settings are reduced. At 2560x1440, Low averages 332 FPS, Medium averages 234 FPS (minimum 199, maximum 269), High averages 181 FPS, and Ultra averages 120 FPS. The drop from 1080p to 1440p is consistent across settings, with roughly a 35-40% reduction in average FPS.

At 3840x2160, the figures are 175 FPS on Low, 123 FPS on Medium (minimum 105, maximum 142), 96 FPS on High, and 63 FPS on Ultra. The 4K results show that even at Low settings, the system cannot maintain the triple-digit frame rates seen at lower resolutions, and the Ultra preset drops below 60 FPS territory, though it remains playable. The Medium preset at 4K shows a minimum of 105 FPS, which suggests that the combo can maintain a solid experience at that setting without significant frame drops. The data indicates that the RTX 5090 D’s performance scales predictably with resolution, and the i5-12600KF does not introduce any unusual bottlenecks at any tested configuration.

FAQ

Q: What is the best resolution for this combo to achieve high refresh rates?

A: At 1920x1080, the system averages 285 FPS on High settings and 469 FPS on Low, making 1080p the best choice for high refresh rate displays. At 2560x1440, High settings still deliver 181 FPS, which is sufficient for 144Hz monitors.

Q: Can this combo run Fortnite at 4K with playable frame rates?

A: Yes, at 4K High the average is 96 FPS, and at 4K Medium it is 123 FPS. The 4K Ultra preset drops to 63 FPS, which is playable but not ideal for competitive play.

Q: How does the CPU affect performance at 1080p Low?

A: At 1080p Low, the system reaches 469 FPS, which is likely near the CPU’s limit. The i5-12600KF’s single-thread score of 1016 in 3DMark and 3925 in PassMark suggests it can handle high frame rates, but a faster CPU might yield marginal gains.

Q: Is the RTX 5090 D the limiting factor at 4K Ultra?

A: Yes, the 4K Ultra average of 63 FPS is significantly lower than the 4K Low average of 175 FPS, indicating that the GPU’s rendering load is the primary constraint at maximum settings.

Q: How does this combo compare to others in the database?

A: The combo ranks 25th out of 2740 tested configurations, placing it in the top 1%. This is driven largely by the GPU’s high percentile rank of 92, while the CPU’s percentile rank of 79 is less influential.

Q: What is the best settings preset for a balanced experience?

A: At 1440p, the High preset (181 FPS) offers a good balance between visual quality and frame rate. At 4K, the Medium preset (123 FPS) provides smooth gameplay with acceptable visuals.

Settings Recommendations

Based on the measured FPS data, the optimal settings preset depends on the target resolution and refresh rate. For competitive play at 1920x1080, the Low preset delivers 469 FPS, which is far beyond any display’s refresh rate and minimizes input latency. However, most users will prefer the Medium preset at 1080p, which averages 368 FPS with a minimum of 312 FPS, ensuring no frame drops below 300 FPS while offering improved visuals over Low. The High preset at 1080p (285 FPS) is also viable, but the jump to Ultra (188 FPS) represents a significant drop that may not be worth the visual gains for fast-paced gameplay.

At 2560x1440, the High preset (181 FPS) is the recommended choice for high refresh rate monitors, as it stays above 144 FPS on average. The Medium preset (234 FPS) is even smoother and is preferable for 240Hz displays, while the Low preset (332 FPS) is excessive for most use cases. The Ultra preset at 1440p (120 FPS) is playable but borders on the edge of high refresh rate territory, making it a secondary option for users who prioritize graphics over frame rate.

For 4K gaming, the Medium preset (123 FPS) is the best balance, as it provides smooth gameplay above 100 FPS with a minimum of 105 FPS. The High preset (96 FPS) is also viable for 60-90Hz displays, while the Low preset (175 FPS) is ideal for users who want maximum frame rates at 4K. The Ultra preset (63 FPS) should be avoided for competitive play, but it is acceptable for cinematic single-player experiences where visual fidelity matters more than responsiveness. Overall, the data shows that the combo is best utilized at 1440p High or 4K Medium, depending on whether the user prioritizes frame rate or resolution.