Fortnite

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

The AMD Ryzen 9 9900X3D is a 12-core, 24-thread processor from the Zen 5 architecture, codenamed Granite Ridge, built on a 4 nm process at TSMC. It has a base clock of 4.40 GHz and a boost clock of 5.50 GHz, with a TDP of 120 W, fitting into the AMD Socket AM5 platform. The L3 cache is substantial at 128 MB, which benefits games that rely on repeated data access patterns; Fortnite's engine can leverage such cache when handling complex scenes with many players and build structures.

Benchmark results for this CPU show strong multi-threaded performance. In Cinebench R23, the multicore score is 47737, while the single-core score is 6739. The Geekbench multicore score is 22884, and the single-core score is 3041. Passmark multithread score is 56154, with a single-thread score of 4646. These figures indicate a processor that excels in both lightly-threaded tasks (which matter for game logic) and heavily-threaded workloads. The CPU's percentile vs all CPUs is 91, placing it in the top tier of processors. Its average benchmark score is 54762.

When compared to its nearest rivals, the Ryzen 9 9900X3D sits very close to the Intel Core Ultra 5 245KF, which has an average score of 55093 and a deltaPct of -0.6 (meaning the 9900X3D is 0.6% behind). It is 1.3% ahead of the Intel Core Ultra 5 245K (score 54053), 2% ahead of the Intel Xeon 6505P (score 53701), and 2.1% ahead of the Intel Core i7-14700F (score 53620). These deltas are small, indicating that in synthetic benchmarks the 9900X3D is essentially at parity with its immediate competition.

For Fortnite, the relationship between CPU and results is most visible at lower resolutions and higher frame rates. When the GPU is not the bottleneck, the CPU's ability to feed frames becomes critical. The data shows that at 1080p Low settings, the average FPS reaches 432, which is a frame rate where CPU performance directly influences the outcome. The 128 MB L3 cache and high boost clock of 5.50 GHz help maintain consistent frame pacing in busy scenarios like combat zones with many players and destructible environments. The 12 cores/24 threads also provide headroom for background tasks (e.g., streaming or voice chat) without stealing compute from the game, though the game itself typically uses fewer threads.

FAQ

Q: What is the average FPS at 1080p with High settings for this combo?

A: At 1920x1080 with High settings, the average FPS is 236.

Q: How does the Ryzen 9 9900X3D compare to the Intel Core Ultra 5 245KF in average benchmark score?

A: The Intel Core Ultra 5 245KF has an average score of 55093, while the Ryzen 9 9900X3D has an average score of 54762. The deltaPct is -0.6%, meaning the 9900X3D is 0.6% behind in that comparison.

Q: What is the lowest average FPS recorded across all tested settings?

A: The lowest average FPS is 52, which occurs at 3840x2160 (4K) with Ultra settings.

Q: Does the GPU have more VRAM than the minimum needed for 4K Ultra?

A: The GPU has 16 GB of GDDR6X memory. The data does not specify a minimum VRAM requirement, but the 4K Ultra result (52 FPS) is the lowest in the set, suggesting the GPU is heavily loaded at that configuration.

Q: What is the boost clock of the CPU?

A: The boost clock is 5.50 GHz.

Q: What is the combo's rank among all tested combos in Fortnite?

A: The combo ranks 231 out of 3700 tested combos, which puts it in the top 6.2% of all combinations tested.

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

The measured FPS data across three resolutions (1920x1080, 2560x1440, 3840x2160) shows a clear pattern of performance scaling. At Low settings, the average FPS drops from 432 at 1080p to 275 at 1440p, and further to 145 at 4K. This is a reduction of 36.3% from 1080p to 1440p, and another 47.3% from 1440p to 4K. The absolute drop from 1080p to 4K is 287 FPS, which is a 66.4% decrease.

For High settings, the averages are 236 FPS at 1080p, 150 FPS at 1440p, and 79 FPS at 4K. The drop from 1080p to 1440p is 36.4%, and from 1440p to 4K is 47.3%. These percentages are nearly identical to the Low settings scaling, suggesting a consistent relationship between resolution and frame rate.

Medium settings show a similar trend: 304 FPS at 1080p, 194 FPS at 1440p, and 102 FPS at 4K. The scaling from 1080p to 1440p is 36.2%, and from 1440p to 4K is 47.4%. Ultra settings yield 156 FPS at 1080p, 99 FPS at 1440p, and 52 FPS at 4K, with drops of 36.5% and 47.5%, respectively.

The consistency of these percentage drops across all settings is notable. It indicates that the resolution scaling is primarily a function of the GPU's rendering workload, not the CPU. If the CPU were the limiting factor, we would expect the FPS to become flat or less responsive to resolution changes at lower settings. Instead, the FPS scales almost linearly with pixel count, which suggests that the NVIDIA GeForce RTX 4080 is the bottleneck in these scenarios, especially at 4K where the GPU's 16 GB of GDDR6X memory and 716.8 GB/s bandwidth are taxed. The RTX 4080 has a boost clock of 2505 MHz and a base clock of 2205 MHz, with 9728 shading units and 76 RT cores. At 4K Ultra, the average FPS of 52 indicates that the GPU is working near its limits, as the pixel throughput requirement quadruples compared to 1080p.

How This Combo Ranks — use comboRankInGame vs other tested combos

The combo of AMD Ryzen 9 9900X3D and NVIDIA GeForce RTX 4080 ranks 231 out of 3700 tested combos in Fortnite. This places the combo in the top 6.2% of all combinations tested. Given the high percentile of both components (CPU at 91, GPU at 86), this ranking is consistent with expectations: the CPU is in the 91st percentile vs all CPUs, and the GPU is in the 86th percentile vs all GPUs. The combo rank of 231 suggests that there are 230 combos that perform better in this specific game, which likely includes pairings with higher-end GPUs (e.g., RTX 4090-class) or CPUs with even more cache or higher clocks.

The rank of 231 out of 3700 is a strong result, but it is not at the very top. The data shows that the RTX 4080's nearest rivals include the RTX 4080 SUPER (deltaPct of 0.1%, meaning the 4080 is 0.1% slower) and the AMD Radeon RX 6750 GRE 12 GB (deltaPct of -2.6%, meaning the 4080 is 2.6% faster). These small deltas suggest that the GPU is well-positioned in its class, but the combo's rank in Fortnite may be influenced by the game's engine favoring certain architectures. The CPU's rivals, such as the Intel Core i7-14700F (deltaPct of 2.1%), are close in synthetic benchmarks, but the 9900X3D's larger L3 cache (128 MB) could provide an edge in Fortnite's build-heavy scenarios, even if synthetic scores are similar.

The combo rank of 231 also implies that the combination is not the absolute best, but it is far above the median. For a game like Fortnite, which can be CPU-bound at high frame rates, the 9900X3D's strong single-thread performance (Cinebench R23 single-core score of 6739) helps maintain high FPS, while the RTX 4080's 16 GB VRAM and 48.74 TFLOPS FP32 throughput handle the graphical load. The 231st rank out of 3700 means that 93.8% of tested combos are slower, which validates this pairing as a high-end option.

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

The NVIDIA GeForce RTX 4080 is based on the AD103 chip with the Ada Lovelace architecture, built on a 5 nm process at TSMC. It has 16 GB of GDDR6X memory on a 256-bit bus, with a memory bandwidth of 716.8 GB/s. The memory clock runs at 1400 MHz, which translates to 22.4 Gbps effective. The GPU has a base clock of 2205 MHz and a boost clock of 2505 MHz. It features 9728 shading units, 304 TMUs, 112 ROPs, 76 RT cores, and 304 tensor cores. The FP32 performance is 48.74 TFLOPS, with a pixel rate of 280.6 GPixel/s and a texture rate of 761.5 GTexel/s. The TDP is 320 W, and it uses a 1x 16-pin power connector with a suggested PSU of 700 W.

In Fortnite, the GPU's role is most evident at higher resolutions and settings. At 1080p Low, the average FPS is 432, which is so high that the CPU is likely the limiting factor. At 4K Ultra, the average FPS drops to 52, indicating that the GPU is fully saturated. The 16 GB VRAM is ample for Fortnite's textures, even at 4K Ultra, but the rendering workload at that resolution (3840x2160) is substantial. The RTX 4080's nearest rival, the RTX 4080 SUPER, has a deltaPct of 0.1%, meaning they perform nearly identically. The AMD Radeon RX 6750 GRE 12 GB is 2.6% slower, and the AMD Radeon 8060S is 2.7% slower.

The data shows that the GPU's performance scales predictably with resolution. At 1440p Medium, the average FPS is 194, with a min FPS of 165 and max FPS of 223. At 4K Medium, the average is 102, with min 87 and max 118. These min/max values indicate some frame time variance, but the overall experience is smooth. The RTX 4080's 76 RT cores and 304 tensor cores support ray tracing and DLSS, though the measured FPS data does not specify whether these features were enabled. The GPU's percentile vs all GPUs is 86, placing it in the top 14% of all GPUs.

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

The measured FPS data provides a complete picture of this combo's performance across three resolutions and four settings presets.

1920x1080 (1080p):

• Low: average FPS 432
• Medium: average FPS 304, min FPS 259, max FPS 350
• High: average FPS 236
• Ultra: average FPS 156

2560x1440 (1440p):

• Low: average FPS 275
• Medium: average FPS 194, min FPS 165, max FPS 223
• High: average FPS 150
• Ultra: average FPS 99

3840x2160 (4K):

• Low: average FPS 145
• Medium: average FPS 102, min FPS 87, max FPS 118
• High: average FPS 79
• Ultra: average FPS 52

These numbers show a consistent pattern: each settings tier reduces FPS by a similar factor. From Low to Ultra at 1080p, the FPS drops from 432 to 156, a 63.9% reduction. At 1440p, the drop is from 275 to 99, a 64.0% reduction. At 4K, the drop is from 145 to 52, a 64.1% reduction. This consistency suggests that the settings presets scale the graphical workload proportionally, and the GPU's performance scales accordingly.

The min/max FPS values are only provided for Medium settings. At 1080p Medium, the min is 259 and max is 350, giving a range of 91 FPS. At 1440p Medium, the range is 58 FPS (min 165, max 223). At 4K Medium, the range is 31 FPS (min 87, max 118). The narrowing range at higher resolutions indicates that the GPU becomes more consistently loaded, reducing frame time spikes that could occur at lower resolutions where CPU limitations might cause variability.

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

Based on the measured FPS data, the optimal settings depend on the target resolution and the desired frame rate experience.

For 1080p, all settings presets deliver playable frame rates. Low settings at 432 FPS are excessive for most displays, which typically max out at 240 Hz or 360 Hz. Medium settings at 304 FPS (min 259, max 350) provide a substantial frame rate with headroom, while High at 236 FPS is also excellent. Ultra at 156 FPS is still above 144 Hz, making it a viable option for high-refresh monitors. For 1080p, the Medium preset offers the best balance: it has a high average FPS (304) and a min FPS of 259, ensuring that even in demanding scenes, the frame rate stays above 240 FPS. This makes Medium the recommended choice for competitive play at 1080p, as it provides a smooth experience without sacrificing too much visual fidelity.

For 1440p, Low at 275 FPS and Medium at 194 FPS (min 165, max 223) are both excellent. High at 150 FPS is also good for 144 Hz displays. Ultra at 99 FPS is below 100 FPS, which may be noticeable to sensitive players. The Medium preset at 1440p is recommended for most users, as it delivers an average of 194 FPS with a min of 165, which is above the 144 Hz threshold. This ensures consistent smoothness during fast-paced combat.

For 4K, the options are more constrained. Low at 145 FPS and Medium at 102 FPS (min 87, max 118) are the only presets that exceed 60 FPS. High at 79 FPS is playable, but Ultra at 52 FPS drops below 60 FPS, which can feel less smooth. For 4K, the Medium preset is the best choice: it averages 102 FPS with a min of 87, providing a solid experience for a 60 Hz or 120 Hz display. Low at 145 FPS is also viable if frame rate is prioritized over visuals, but Medium offers a better visual quality while staying well above 60 FPS.

In summary, the Medium settings preset provides the best overall experience across all resolutions, as it balances frame rate and visual quality. At 1080p, it delivers 304 FPS; at 1440p, 194 FPS; and at 4K, 102 FPS. These numbers indicate that the combo is versatile, capable of high-refresh gaming at 1080p/1440p and smooth 4K gaming, with the RTX 4080's 16 GB VRAM ensuring no memory-related stutters at higher settings.