Fortnite

The AMD Ryzen 5 8400F pairs a 6-core, 12-thread Zen 4 architecture with a 4.20 GHz base clock and a 4.70 GHz boost clock. This configuration yields a single-thread benchmark score of 951 in 3DMark and a Cinebench R23 single-core result of 2943 points, positioning it as a strong driver for frame generation in lightly-threaded game workloads. In multi-threaded tasks, the CPU produces a Cinebench R23 multi-core score of 20851, placing it in the 82nd percentile among all tested processors. Its nearest rivals in aggregate benchmark scores include the AMD Ryzen 7 2700X (matching at a 0% delta) and the AMD Ryzen 5 7500F (slightly ahead by 0.3%), indicating that the 8400F sits at the edge of a performance plateau where generational improvements yield marginal gains.

In Fortnite, the CPU’s influence is most apparent at lower resolutions and settings where the graphics card is not the primary constraint. At 1080p Low settings, the system achieves 335.5 FPS, a figure that dwarfs the 4K Low result of 111.4 FPS by a factor of three. This scaling demonstrates that at 1080p, the CPU’s 4.70 GHz boost clock and 16 MB of shared L3 cache are sufficient to feed the RTX 4070 without bottlenecking. However, the gap between 1080p Low (335.5 FPS) and 1080p Ultra (123.5 FPS) is stark, showing that while the CPU can push high frame rates in minimal settings, the demand for geometry and effects at Ultra presets shifts the burden to the GPU. The 8400F’s 82nd percentile standing among all CPUs reinforces its role as a capable mid-range processor that will not hold back a high-end graphics card in esports-focused titles like Fortnite, provided the graphical load is not excessive.

Settings Recommendations

The measured data presents a clear hierarchy across the four presets at each resolution, and the optimal choice depends on whether the target is competitive frame rates or visual fidelity. At 1080p, the Low preset delivers 335.5 FPS, more than double the High preset’s 183.5 FPS and nearly triple the Ultra preset’s 123.5 FPS. For players with high-refresh-rate monitors, the Low preset is the only option that consistently exceeds 300 FPS, making it the best experience for maximizing responsiveness in fast-paced Battle Royale encounters. The Medium preset at 1080p yields 239.8 FPS, which is still well above the 144 Hz threshold and offers a moderate improvement in visual quality over Low without sacrificing the frame rate advantage.

At 1440p, the trade-off becomes more pronounced. The Low preset produces 214.1 FPS, which remains highly competitive, but the High preset at 119.7 FPS is the first to dip below the 120 FPS mark, suggesting that players seeking a balance between clarity and speed should consider Medium at 149.3 FPS. The Ultra preset at 1440p drops to 79.6 FPS, which is playable but not ideal for a game where quick aiming is critical. At 4K, the situation flips entirely; even the Low preset yields only 111.4 FPS, and the High preset falls to 61.2 FPS. The data indicates that for 4K gaming, the Medium preset at 77.8 FPS provides the best compromise, as the Ultra preset at 41.5 FPS is too low for smooth gameplay. Consequently, the best overall experience per the measured rows is the Medium preset at 1080p, where 239.8 FPS offers a substantial visual upgrade over Low while still maintaining frame rates high enough for any competitive scenario.

Resolution Scaling

The FPS progression from 1080p to 4K reveals a consistent pattern of GPU-bound scaling, with the CPU’s role diminishing as resolution increases. At Low settings, the frame rate drops from 335.5 FPS at 1080p to 214.1 FPS at 1440p, a reduction of approximately 36%, and then to 111.4 FPS at 4K, another 48% drop. This steep decline at Low settings indicates that even with minimal graphical load, the RTX 4070’s rendering capabilities become the limiting factor as pixel count quadruples from 1080p to 4K. The CPU’s 12 threads and 4.70 GHz boost clock are not the bottleneck here; the data shows that the system can exceed 300 FPS at 1080p, proving the processor can handle high input rates, but the GPU cannot sustain those rates at higher resolutions.

The scaling at High settings follows a similar trajectory: 183.5 FPS at 1080p, 119.7 FPS at 1440p, and 61.2 FPS at 4K. The percentage drop from 1440p to 4K is 49%, nearly identical to the Low preset’s 48% decline, suggesting that the GPU’s fill rate and memory bandwidth are the dominant constraints across all settings. The RTX 4070’s 12 GB of GDDR6X memory and 504.2 GB/s bandwidth are sufficient for 4K, but the 41.5 FPS result at 4K Ultra confirms that the card cannot handle maximum settings at this resolution. The fact that the 1080p Ultra result (123.5 FPS) is still higher than the 4K Low result (111.4 FPS) highlights how resolution scaling affects performance more than preset changes, indicating that users should prioritize resolution reduction over quality settings when seeking higher frame rates.

How This Combo Ranks

Within the database of 1564 tested combinations, this pairing of the AMD Ryzen 5 8400F and NVIDIA GeForce RTX 4070 holds the 380th position. This ranking places it in the top 24% of all combos tested for Fortnite, which is a strong showing given that the GPU alone sits in the 81st percentile among all graphics cards and the CPU in the 82nd percentile. The combo’s rank of 380 suggests that while both components individually perform well, the combination does not reach the top tier, likely because the RTX 4070’s 12 GB VRAM and 192-bit memory bus limit its performance at 4K Ultra settings, where the combo achieves only 41.5 FPS. In contrast, the 1080p Low result of 335.5 FPS demonstrates that the combo excels in scenarios where the CPU’s high single-thread score can be fully utilized.

The gap between the combo’s rank (380) and the individual component percentiles (81 and 82) indicates that Fortnite’s engine scales better with GPU improvements than CPU improvements at higher settings. The nearest GPU rivals include the AMD Radeon RX Vega 56 with a -0.6% delta and the NVIDIA GeForce RTX 4080 Mobile with a -2.2% delta, both of which are close in aggregate benchmark scores but may not match the RTX 4070’s ray tracing or DLSS capabilities. The combo’s rank of 380 out of 1564 means it outperforms approximately 75% of all tested configurations, making it a solid choice for high-refresh-rate 1080p and 1440p gaming, but it falls short of the top 100 combos that likely feature higher-end GPUs like the RTX 4080 or 4090.

GPU Role

The NVIDIA GeForce RTX 4070 is built on the Ada Lovelace architecture with an AD104 chip, featuring 5888 shading units, 184 texture mapping units, and 64 ROPs. Its boost clock of 2475 MHz and base clock of 1920 MHz allow it to achieve a FP32 performance of 29.15 TFLOPS, which is reflected in its benchmark scores: a 3DMark Steel Nomad DX12 score of 3854 and a Passmark G3D score of 26927. The GPU’s 12 GB of GDDR6X memory operates at 1313 MHz with a 192-bit bus, delivering 504.2 GB/s of bandwidth. This memory configuration is sufficient for 1080p and 1440p gaming, as evidenced by the 183.5 FPS at 1080p High and 119.7 FPS at 1440p High, but it becomes a limiting factor at 4K, where the Ultra preset drops to 41.5 FPS.

In Fortnite, the GPU’s role is dominant across all settings, particularly at higher resolutions. The 1080p Low result of 335.5 FPS shows that the RTX 4070 can easily handle minimal graphical loads, but the 4K Low result of 111.4 FPS indicates that the card’s fill rate is challenged by the pixel count. The GPU’s 46 ray tracing cores and 184 tensor cores are not directly reflected in the measured FPS data, but they contribute to the card’s overall capability in modern titles. The RTX 4070’s 81st percentile ranking among all GPUs and its aggregate benchmark score of 37283 place it in the upper echelon of graphics cards, but its nearest rivals include the RX Vega 56 and RTX 4080 Mobile, which have similar aggregate scores. The data shows that the GPU is the primary driver of Fortnite’s performance, with the CPU only becoming a factor at 1080p Low where the system can exceed 300 FPS, confirming that the RTX 4070 is well-matched to the Ryzen 5 8400F for this game.