Fortnite

The Intel Core i5-12400 and NVIDIA GeForce RTX 5080 combination in Fortnite delivers a wide performance envelope across resolutions and presets, with measured averages ranging from 54 FPS at 4K Ultra to 415 FPS at 1080p Low. All figures below are direct measurements from the benchmark database. The platform ranks at position 218 out of 3,700 combos tested for this title, and the data is verifiable frame-rate output, not prediction.

Resolution Scaling

Scaling from 1080p to 4K reveals how the system shifts between CPU and GPU headroom at each preset. At Low settings, the average frame rate drops from 415 FPS at 1920x1080 to 285 FPS at 2560x1440 — a 31.3% reduction — and then to 150 FPS at 3840x2160, which is a 63.9% reduction from the 1080p baseline. This large drop across the resolution ladder indicates that the RTX 5080’s pixel processing load grows faster than the i5-12400’s ability to feed it. At the High preset, the same trend holds: 245 FPS at 1080p, 155 FPS at 1440p (36.7% loss for the drop to 1440p), and 82 FPS at 4K, a 66.5% total loss from 1080p entry point.

The Ultra preset shows the steepest absolute decline during the resolution step, going from 161 FPS at 1080p to 103 FPS at 1440p, a 36.0% reduction, and then to 54 FPS at 4K — an overall 66.5% drop from the 1080p Ultra value. The Medium preset’s min/max spread is the only one recorded in the dataset: at 1080p Medium the average is 316 FPS (min 268, max 363), at 1440p Medium it falls to 201 FPS (min 171, max 231), and at 4K Medium to 106 FPS (min 90, Max 122). The percentage reduction from 1440p Medium to 4K Medium is 47.3%, which is smaller than the 63.9% to 66.5% losses seen in the Ultra, High, and Low presets. That smaller gap suggests the medium setting placement changes the bottleneck balance. In all presets, the 1440p to 4K step causes a larger absolute FPS drop than the 1080p to 1440p step, consistent with a system that becomes progressively more GPU-bound as resolution rises. The 1080p low result of 415 FPS is the only figure above 400; no measured result at 1440p or 4K reaches even half that value, highlighting the system’s ability to burst at the lowest resolution.

CPU Role

The Intel Core i5-12400 is a 6-core, 12-thread Alder Lake-S desktop processor with a 2.50 GHz base clock and a 4.40 GHz boost clock, sitting on the Intel Socket 1700 platform. It features an integrated UHD Graphics 730, a 10 nm process node, and 18 MB of shared L3 cache, with 80 KB L1 and 1.25 MB L2 per core. The chip supports both DDR4 and DDR5 memory in a dual-channel 64-bit memory bus and offers PCIe Gen 5 with 16 lanes from the CPU. The 65W TDP aligns with a mainstream power envelope, and the memory access path – combined with the high boost clock – affects how quickly game draw calls are dispatched.

Benchmark data shows the i5-12400 at the 72nd percentile among all tested CPUs. The 3DMark multi-thread score is 5,873 for 16 threads; the 2-thread score 1,692; 4-thread 3,012; 8-thread 4,745; single-thread 910. In CINEBENCH, the R23 multi-core reaches 15,989 and single-core 2,257. On Geekbench, multi-core is 8,564 and single-core 1,848. PassMark multi-thread 18,747 and single-thread 3,456. The CPU'S average benchmark score of 18,683 places it just below the AMD EPYC 7643 (18,697, 0.1% slower), below the Intel Core i7-1355U (18,730, 0.3% slower), below the AMD Ryzen AI 5 330 (18,811, 0.7% slower), but 0.9% faster than the Intel Core i3-14100F (18,519). In Fortnite, this means the CPU is capable of driving very high frame rates at 1080p, as the measured 415 FPS low at 1920x1080 indicates. The single-thread and multi-thread scores are both respectable, but they are not near the top of the CPU tier list — the 72nd percentile means a quarter of other CPUs score higher. At 4K, the CPU is not the primary limiter; the 82 FPS at High versus 54 FPS at Ultra shows that CPU limit is far above those frame rates, since resolution changes have a larger impact than setting changes.

The 6 cores and 12 threads are enough to keep the GPU fed for 1080er Medium (316) and 1440p Medium (201), but the scaling pattern from 1440p to 4K shows those settings cause more dependency on the GPU rather than CPU. The i5-12400’s single-thread performance, as measured by the 3DMark single-thread score of 910, at 4.40 GHz is adequate only for a high-refresh 1080p monitor; a 4K monitor will be held back by GPU limits, not CPU limits in this title.

GPU Role

The NVIDIA GeForce RTX 5080 uses the GB203 chip on TSMC’s 5nm process, with 45,600 million transistors on a 378 mm² die. Its base clock is 2295 MHz and boost 2617 MHz, with memory running at 1875 MHz (30 Gbps effective). It has 16 GB of GDDR7 memory on a 256-bit bus, providing 960.0 GB/s of bandwidth. The GPU offers 10,752 shading units, 336 texture mapping units, 112 ROPs, 84 ray tracing cores, 336 tensor cores, and delivers a pixel rate of 293.1 GPixel/s, texture rate of 879.8 GTexel/s, and FP32 throughput of 56.28 TFLOPS. The 360W TDP and a PCIe 5.0 x16 interface keep it modern, though the board is dual-slot and 304 mm long.

GPU benchmark results show a 3DMark Steel Nomad DX12 score of 8,637, a Geekbench OpenCL score of 235,901, and a Vulkan result of 255,450. PassMark DirectX 10, 11, and 12 scores are 208, 324, and 151, respectively, while PassMark G3D shows 36,565 and G2D 1,415. The 3DMark generic average benchmark for the GPU is 56,083, placing the RTX 5080 in the 87th percentile of all GPUs. Compared to its nearest rivals, the average score of 56,083 is 0.6% higher than the AMD Radeon 8060S (55,757), 0.7% faster than the AMD Radeon RX 6750 GRE 12 GB (55,698), and 2.3% higher than the AMD Radeon Pro W5700X (54,828). The RX 9070 GRE scores 57,367 (which are 2.2% higher than the RTX 5080). Thus the RTX 5080 sits just above a mix of high-end cards, and in Fortnite its 16 GB frame buffer and 960 GB/s bandwidth drive the available FPS range. The GPU’s memory bandwidth differences become more apparent at 4K; the High preset (82 FPS) uses more memory transactions than Low (150 FPS). The resolution scaling we already showed supports a GPU-bound regime at 4K: all presets lose between 63.9% and 66.5% FPS from 1080p to 4K, a consistent drop indicating that the GPU is the component that changes frame rate proportionally to pixel count.

FAQ

Q: What average FPS does the i5-12400 and RTX 5080 deliver at 1080p High?

A: At 1920x1080 High, the measured average is 245 FPS.

Q: Which measured preset delivers the absolute lowest frame rate in the test set?

A: 3840x2160 Ultra averages only 54 FPS, the lowest average of any measured setting.

Q: Where is the highest single average from all measured combinations?

A: The 1080p Low preset with an average of 415 FPS is the highest, and it is the only results above 400 FPS.

Q: Does the GPU rank higher than the 1000 FPS in this game?

A: The GPU has a percentile 87 out of 100, and the CPU 72, yet the measured resolution—rather than hardware tier—decides whether the combo stays above 60 FPS. At 4K Ultra it slides to 54 FPS, while at 1080p Low it exceeds 400 FPS.

Q: What are the only measurements that include a min/max report?

A: The Medium preset at every resolution has min and max frames listed: 1080p Medium (268/363), 1440p Medium (171/231), and 4K Medium (90/122). No other settings page includes those values.

Q: Compared to the CPU's closest rivals, which has the smallest percent difference?

A: The i5-12400's own CPU average of 18,683 is only 0.1% behind the AMD EPYC 7643 (18,697), which is the smallest deltaPct in its nearestRivals list. On the GPU side, the smallest deltaPct is 0.6% with the AMD Radeon RX 8060S (55,757 vs 56,083).

Measured FPS Breakdown

All figures from the measured data set:

3840x2160

• High: 82 avg
• Low: 150 avg
• Medium: 106 avg (min 90, max 122) - Ultra: 54 avg

2560x1440

• High: 155 avg
• Low: 285 avg
• Medium: 201 avg (min 171, max 231)
• Ultra: 103 avg

1920x1080

• High: 245 avg
• Low: 415 avg
• Medium: 316 avg (min 268, max 363)
• Ultra: 161 avg

The dataset is complete for all presets and resolutions shown above; the min/max values are present only for Medium, as noted.

Settings Recommendations

Considering the measured framerate and the importance of frame latency (shown implicitly by the min values in the Medium preset), the strongest balance of performance comes from the 1440p Medium row. This preset averages 201 FPS with a 171 FPS minimum and 231 FPS maximum. The 171 FPS floor is reasonably low, making it still above 1440p 60 Hz, and the 201 average gives a comfortable hitch. If a high refresh monitor requires the lowest input lag, the 1080p Low row (415 avg) is the extreme but leaves less visual detail. At 4K resolution, using Low settings with a 150 FPS average is the only configuration that keeps you above 100 FPS; the High row at 82 FPS and Ultra at 54 FPS will be acceptable only for cinematic play, not fast-paced Battle Royale. As existing, the High preset at 2560x1440 (155 avg) offers good quality but falls short of the Medium preset’s 201 avg and its tighter minimum. Therefore the data suggests 1440p Medium is the sweet spot for balanced frame rate and fidelity, while 1080p Low is the choice for extreme refresh and 4K users should drop to the Low preset only.

For users prioritizing maximum frame rate consistency at a given resolution, the Medium setting gives the only min/max data points, and those spreads are narrower relative to the average at lower resolutions: at 1080p the spread is 95 FPS (268–363), at 1440p it's 60 FPS (231–171), and at 4K it's 32 FPS (122–90). That pattern shows lower frame-rate volatility at higher resolutions. The data doesn’t indicate whether the Low preset or Ultra preset has similar min/max behavior, so no recommendation for those can be inferred beyond average FPS. If you’re aiming for the e-sports style play on a 240 Hz monitor, 1080p Low’s 415 average exceeds any common refresh rate. If you also rely on a 2560x1440 monitor, the 1440p Low average of 285 FPS still comfortably clears a 240Hz panel. The strongest recommendation that uses only data is: 1080p Low for highest frame interval, 1440p Medium for the best combination of frame rate n1/2.3 comparing to High, and 4K Ultra is only for visual Cost, not competitive play.