Fortnite

The AMD Ryzen 9 9900X and Intel Arc B570 combination in Fortnite presents a fascinating study in system bottlenecking, where the data reveals a clear shift in performance limitations as resolution increases. Measured FPS results show a progression from high refresh rate capability at 1080p to a playable but constrained experience at 4K, with the relationship between settings and resolution telling a compelling story about where this pairing's strengths and weaknesses lie.

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

The measured FPS data across resolutions reveals a steep and consistent performance drop that intensifies with higher graphical settings. At Low settings, the average FPS falls from 176 at 1920x1080 to 112 at 2560x1440, a 36% reduction, and then further to 59 at 3840x2160, representing a 47% drop from the 1440p figure. This scaling pattern suggests that even at the lowest settings, the GPU is beginning to feel the pressure of increased pixel counts, though the 1080p result of 176 FPS indicates substantial headroom remains at that resolution.

Moving to High settings, the scaling becomes even more pronounced. The average FPS drops from 96 at 1080p to 61 at 1440p, a 36% decrease, and then plummets to 32 at 4K, a 48% reduction from the 1440p number. The 4K High result of 32 FPS is particularly telling — it sits just above the threshold of what most players would consider playable, and the 64 FPS gap between 1080p High and 4K High demonstrates that the Arc B570's 10 GB of GDDR6 memory and 380.0 GB/s bandwidth are being pushed to their limits as pixel throughput demands escalate.

The Medium settings row provides the only complete min/max data in the measured results, offering a clearer picture of frame time consistency. At 1080p Medium, the average is 124 FPS with a minimum of 106 and maximum of 143. At 1440p Medium, the average drops to 79 FPS with a minimum of 67 and maximum of 91. The 4K Medium result shows an average of 42 FPS with a minimum of 35 and maximum of 48. The min-to-max spread remains relatively tight across all three resolutions, suggesting that the bottleneck is steady rather than spiky, which points toward a sustained GPU limitation rather than occasional CPU stalls.

The Ultra preset data reinforces this interpretation. At 1080p Ultra, the average is 64 FPS; at 1440p Ultra, it falls to 40 FPS; and at 4K Ultra, it bottoms out at 21 FPS. The 43 FPS difference between 1080p Ultra and 4K Ultra represents a 67% reduction in performance, which is a far more aggressive scaling curve than what Low settings exhibit. This divergence indicates that as settings increase, the GPU's shading units, texture units, and raster operations pipelines become the primary constraint, with the 11.52 TFLOPS FP32 throughput and 200.0 GPixel/s pixel rate proving insufficient for Fortnite's higher-fidelity rendering at 4K.

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

The Ryzen 9 9900X brings substantial processing power to this pairing, with 12 cores and 24 threads based on the Zen 5 architecture. Its base clock of 4.40 GHz and boost clock of 5.60 GHz provide the kind of single-thread performance that competitive shooters like Fortnite typically favor, and the benchmark data supports this — the 3dmark_single_thread score of 1286 and the passmark_single_thread score of 4672 both indicate strong per-core capability. The 64 MB of L3 cache and 1 MB L2 per core ensure that frequently accessed game data stays close to the execution units, reducing memory latency stalls.

In the context of the measured FPS results, the CPU's role appears to be largely sufficient at 1080p but increasingly irrelevant as resolution climbs. At 1080p Low, the 176 FPS average suggests that the CPU can feed frames at a rate well beyond what the GPU can render at higher settings. The 24 threads handle Fortnite's background tasks and asset streaming without issue, while the 89.6 GB/s memory bandwidth of the dual-channel DDR5 configuration provides adequate data flow for the game's world streaming.

The CPU's benchmark profile, including a cinebench_r23_multicore score of 32172 and a passmark_multithread score of 54643, indicates that it is nowhere near a limiting factor in this game. Even at 1080p Ultra, where the average FPS drops to 64, the CPU is likely idling relative to its maximum capacity. The data suggests that Fortnite's engine does not heavily tax the 12-core configuration, and the performance deltas between resolutions are almost entirely attributable to GPU load rather than CPU scheduling or thread utilization. The CPU's 92nd percentile ranking among all tested CPUs further confirms that this processor is operating far within its comfort zone.

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

The Intel Arc B570's specifications paint a picture of a mid-range GPU that excels at 1080p but struggles as resolution demands increase. The 10 GB of GDDR6 memory on a 160-bit bus provides 380.0 GB/s of bandwidth, which is adequate for 1080p and 1440p gaming but becomes a constraint at 4K, particularly with higher texture quality settings. The base and boost clocks are both listed at 2500 MHz, suggesting a fixed clock profile that maintains consistent performance without thermal throttling concerns, though the 150 W TDP indicates a power envelope that limits sustained high-frequency operation.

The GPU's compute capabilities, including 2304 shading units, 144 TMUs, and 80 ROPs, translate to a texture rate of 360.0 GTexel/s and a pixel rate of 200.0 GPixel/s. These figures help explain the measured FPS pattern: at 1080p, the GPU can process pixels quickly enough to maintain high frame rates, but at 4K, the four-fold increase in pixel count overwhelms the ROP throughput, leading to the dramatic FPS drops observed. The 18 RT cores and 23.04 TFLOPS FP16 throughput suggest that ray tracing features could be enabled, but the measured data does not include any RT-specific rows, so the impact of those features remains unquantified.

The GPU's benchmark scores, including a passmark_g3d score of 14195 and a 3dmark_steel_nomad_dx12 score of 2649, place it in the 65th percentile among all GPUs. This mid-tier positioning is consistent with the measured Fortnite results — capable at mainstream resolutions, but not designed for 4K enthusiast gaming. The 4K Ultra result of 21 FPS is particularly telling; it suggests that the GPU's memory subsystem and compute units are saturated, and the 10 GB VRAM may be insufficient for ultra textures at that resolution, potentially causing texture streaming or swapping that further degrades performance. The GPU's nearest rivals, including the Intel Arc A750 and NVIDIA GeForce RTX 3070 Mobile, occupy similar performance tiers, reinforcing the Arc B570's positioning as a 1080p-focused card.

How This Combo Ranks — use comboRankInGame vs other tested combos

The combined rank of this CPU-GPU pairing in Fortnite is 2178 out of 2740 tested combos, placing it in the 20th percentile of all configurations tested. This ranking is notably lower than what either component's individual percentile might suggest — the CPU ranks in the 92nd percentile, while the GPU sits in the 65th percentile. The discrepancy indicates that the GPU is the primary constraint in this pairing, dragging the overall combination down relative to other tested systems.

This rank of 2178 out of 2740 means that roughly 79% of tested combos perform better in Fortnite, which is a sobering statistic for a system built around a high-end 12-core processor. The data suggests that many other combinations, likely pairing the 9900X with more powerful GPUs, achieve significantly better frame rates. The combination's percentile is closer to the GPU's individual percentile than the CPU's, confirming that the Arc B570 is the limiting factor in this pairing.

The rank also implies that Fortnite, as a game, is more sensitive to GPU performance than CPU performance in this configuration. The CPU's 12 cores and 24 threads are largely irrelevant to the final ranking, as the game's engine appears to rely more heavily on rasterization throughput than on multi-threaded processing. This is a common pattern in competitive shooters, where the focus is on high frame rates and low latency rather than complex physics simulations that would benefit from additional cores. The 2740 total combos tested provides context for this rank — it is a crowded field, and the Arc B570's mid-tier performance places this combo in the lower-mid range of that distribution.

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

At 1920x1080, the measured results show a clear hierarchy across settings. Low settings produce an average of 176 FPS, which is the highest measured result in the entire dataset. Medium settings reduce the average to 124 FPS, with a minimum of 106 and maximum of 143. High settings further reduce the average to 96 FPS, and Ultra settings bring the average down to 64 FPS. The 112 FPS difference between Low and Ultra at 1080p represents a 64% reduction in performance, highlighting the significant cost of higher graphical fidelity.

Moving to 2560x1440, the scaling pattern continues but with steeper drops. Low settings average 112 FPS, a 36% reduction from the 1080p Low result. Medium settings average 79 FPS, with a minimum of 67 and maximum of 91, representing a 36% drop from 1080p Medium. High settings average 61 FPS, a 36% reduction, and Ultra settings average 40 FPS, a 38% reduction from 1080p Ultra. The consistency of these percentage drops across settings suggests that the GPU's rendering pipeline is uniformly stressed by the resolution increase, regardless of the graphical preset.

At 3840x2160, the results become marginal for smooth gameplay. Low settings average 59 FPS, which is just above the 60 FPS threshold but likely subject to noticeable frame pacing issues. Medium settings average 42 FPS, with a minimum of 35 and maximum of 48, indicating that the GPU is struggling to maintain consistent frame times. High settings average 32 FPS, and Ultra settings average 21 FPS, both of which are below the threshold for smooth playable performance. The 38 FPS difference between 4K Low and 4K Ultra represents a 64% reduction, mirroring the percentage drop seen at 1080p and confirming that the GPU's relative performance degradation is consistent across resolutions.

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

Based on the measured FPS data, the optimal settings for this combination depend heavily on the target resolution and desired frame rate. At 1920x1080, the Medium preset with an average of 124 FPS and a minimum of 106 provides the best balance of visual quality and performance. The minimum of 106 FPS ensures that frame times rarely drop below the 100 FPS threshold, which is critical for competitive play in Fortnite. While Low settings at 176 FPS offer higher headroom, the Medium preset's visual improvements are significant, and the 124 FPS average remains well above the refresh rate of most standard monitors.

For players targeting 2560x1440, the Low preset at 112 FPS is the only option that maintains a consistently high frame rate. The Medium preset at 79 FPS is playable, but the minimum of 67 FPS may cause occasional stutters in intense combat scenarios. The High preset at 61 FPS is borderline, and the Ultra preset at 40 FPS is not recommended for any competitive gameplay. The data suggests that 1440p players should stick with Low or Medium settings to preserve responsiveness.

At 3840x2160, the data indicates that this combination is not well-suited for high-refresh-rate gaming. The Low preset at 59 FPS is the only option that approaches playability, and even this result is likely to feel inconsistent. The Medium preset at 42 FPS is acceptable for casual play, but the High and Ultra presets at 32 FPS and 21 FPS, respectively, are not recommended. Players prioritizing 4K should consider lowering the resolution or accepting significant compromises in visual quality.

FAQ

Q: What is the highest average FPS measured for this combination in Fortnite?

A: The highest average FPS measured is 176, achieved at 1920x1080 resolution with Low settings. This is the only measured result that exceeds 170 FPS in the dataset.

Q: How does the CPU's performance compare to its nearest rivals?

A: The AMD Ryzen 9 9900X has an average benchmark score of 57498. Its nearest rival, the AMD EPYC 9015, scores 57555, representing a delta of -0.1%. The Intel Core i9-14900 scores 58115, which is 1.1% higher than the 9900X.

Q: What is the minimum FPS recorded at 1440p Medium settings?

A: The minimum FPS at 2560x1440 with Medium settings is 67, with a maximum of 91 and an average of 79. This is the only resolution setting combination in the dataset that provides complete min/max data at 1440p.

Q: How does this combo rank among all tested combinations in Fortnite?

A: This combination ranks 2178 out of 2740 tested combos, placing it in the lower-mid range of the distribution. The rank indicates that roughly 79% of tested configurations perform better in Fortnite.

Q: What is the GPU's memory bandwidth and how does it relate to 4K performance?

A: The Intel Arc B570 has a memory bandwidth of 380.0 GB/s, provided by 10 GB of GDDR6 memory on a 160-bit bus. The 4K Ultra result of 21 FPS suggests that this bandwidth is insufficient for high-fidelity rendering at that resolution.

Q: What is the CPU's boost clock and how many threads does it have?

A: The AMD Ryzen 9 9900X has a boost clock of 5.60 GHz and 24 threads across 12 cores. Its single-thread performance, as indicated by a 3dmark_single_thread score of 1286, contributes to the strong 1080p results.