Fortnite

The AMD Ryzen 9 9900X3D paired with the Intel Arc B370 produces a severely GPU-bound experience in Fortnite, where the integrated-class graphics solution becomes the primary bottleneck at every resolution and setting level tested. The data shows that while the CPU is a top-tier performer, the GPU's low percentile ranking (5th) compared to all tested GPUs dictates performance, resulting in a combo rank of 2517 out of 2740 tested combinations. This analysis breaks down the measured FPS data to show exactly how this pairing behaves.

Resolution Scaling

The performance drop from 1080p to 4K is steep and consistent, confirming that the Intel Arc B370 is the limiting component in this configuration. At High settings, the average frame rate falls from 57 FPS at 1920x1080 to 36 FPS at 2560x1440, a 36.8% reduction. The decline continues to 19 FPS at 3840x2160, which represents a 66.7% drop from the 1080p baseline. This scaling pattern is characteristic of a graphics card that is overwhelmed by pixel count, as the GPU's fillrate and shading capabilities are strained by the increasing resolution.

The scaling behavior becomes even more pronounced at lower settings. At Low settings, the frame rate drops from 104 FPS at 1080p to 66 FPS at 1440p (a 36.5% reduction) and then to 35 FPS at 4K (a 66.3% reduction from 1080p). The consistency of these percentage drops across settings suggests that the GPU's raw throughput, not CPU overhead or driver inefficiencies, is the primary constraint. The Arc B370's 20 ROPs and 40 TMUs, paired with a 6.144 TFLOPS FP32 rate, simply cannot sustain high pixel throughput at 4K.

At Medium settings, the data includes minimum and maximum FPS values, which reveal additional insight into the scaling. At 1080p Medium, the average is 73 FPS with a range of 62 to 84 FPS. At 1440p Medium, the average drops to 46 FPS with a range of 39 to 53 FPS. At 4K Medium, the average falls to 25 FPS with a range of 21 to 28 FPS. The consistent spread between minimum and maximum FPS (roughly 22-25% above and below the average) indicates that frame time variance is relatively stable, but the overall performance level is too low for smooth 4K gameplay.

The most demanding scenario, Ultra settings at 4K, yields just 13 FPS average. This is a 64.9% drop from the 37 FPS achieved at Ultra 1080p. The resolution scaling here shows that even at the lowest pixel count, Ultra settings are barely playable at 37 FPS, and the GPU's performance collapses as resolution increases. The data suggests that this combo is only viable for 1080p gaming at Low or Medium settings, where it achieves 104 and 73 FPS respectively.

CPU Role

The AMD Ryzen 9 9900X3D is a 12-core, 24-thread processor based on the Zen 5 architecture (Granite Ridge), with a base clock of 4.40 GHz and a boost clock of 5.50 GHz. Its benchmark scores are exceptional, with a Cinebench R23 multicore score of 47737 and a Geekbench multicore score of 22884. The CPU's percentile rank of 91st among all tested CPUs places it in the top tier of processors, and its average benchmark score of 54762 is nearly identical to the Intel Core Ultra 5 245KF, which scores 55093 with a delta of -0.6%.

However, in this specific Fortnite configuration, the CPU's role is largely underutilized. The game's frame rates are so heavily constrained by the GPU that the CPU's massive thread count and high clock speeds do not translate into higher FPS. The 3DMark single-thread score of 1269 and the Cinebench R23 single-core score of 6739 demonstrate strong per-core performance, which is important for game logic and draw calls. Yet, the measured FPS data shows that even at 1080p Low, where CPU overhead is typically highest, the combo only reaches 104 FPS.

The CPU's 128 MB of L3 cache is a notable feature that typically benefits gaming workloads, but it cannot compensate for the GPU's limitations. The data indicates that the Ryzen 9 9900X3D is more than capable of feeding frames to a faster GPU, but the Arc B370's 6.144 TFLOPS FP32 throughput and 25 W TDP create a hard ceiling. The 12 cores and 24 threads are largely idle in this scenario, as Fortnite's engine does not scale to fully utilize them when the GPU is the bottleneck.

Comparing to nearest rivals, the Ryzen 9 9900X3D's average benchmark score is 1.3% higher than the Intel Core Ultra 5 245K (which scores 54053) and 2.1% higher than the Intel Core i7-14700F (which scores 53620). These margins are small, indicating that the CPU is not the differentiator in this combo. The CPU's 91st percentile ranking is in stark contrast to the GPU's 5th percentile, clearly showing where the performance bottleneck lies.

How This Combo Ranks

This specific combination of AMD Ryzen 9 9900X3D and Intel Arc B370 ranks 2517 out of 2740 tested combos in Fortnite, placing it in the bottom 8.2% of all configurations. This rank is a direct consequence of the GPU's extremely low performance ceiling, as the CPU is in the top 10% of all processors. The combo's placement is more indicative of the GPU's capabilities than the CPU's, given the massive disparity in their respective percentile ranks.

The data shows that this combo performs worse than 2516 other configurations, which is a significant number when considering the total pool of 2740. The rank suggests that Fortnite players with this setup will experience frame rates well below what the CPU could theoretically support. For context, the GPU's nearest rivals include the ATI Mobility Radeon HD 5570 (with a delta of -0.2%) and the ATI Radeon HD 5770 (with a delta of -0.5%), both of which are legacy components from a different era.

The combo rank of 2517 out of 2740 is a clear verdict: this pairing is not suitable for competitive or high-refresh-rate Fortnite play. The 1080p Low setting achieves 104 FPS, which is playable but not ideal for esports-level performance, and all other settings fall below 74 FPS. The rank reflects that the vast majority of tested combos deliver better Fortnite performance, even those with much weaker CPUs paired with stronger GPUs. The bottleneck is unequivocally the GPU, and the CPU's high performance cannot overcome this limitation.

Measured FPS Breakdown

The measured FPS data provides a comprehensive view of this combo's performance across three resolutions and four settings levels. At 1920x1080, the results are as follows: Low settings produce an average of 104 FPS, Medium produces 73 FPS (with a minimum of 62 and maximum of 84), High produces 57 FPS, and Ultra produces 37 FPS. This shows a clear progression where each settings tier reduces performance by roughly 20-30%, with Ultra being the most demanding at 37 FPS.

Moving to 2560x1440, the performance drops significantly. Low settings average 66 FPS, Medium averages 46 FPS (with a range of 39 to 53), High averages 36 FPS, and Ultra averages 24 FPS. The 1440p results show that Low settings are the only playable option above 60 FPS, and even that is marginal. Medium settings dip below 50 FPS, which is noticeable in a fast-paced battle royale game.

At 3840x2160, the performance becomes marginal at best. Low settings average 35 FPS, Medium averages 25 FPS (with a range of 21 to 28), High averages 19 FPS, and Ultra averages 13 FPS. None of these frame rates are suitable for smooth gameplay, as even the lowest settings fall below 36 FPS. The 4K results confirm that this combo is not viable for 4K gaming in Fortnite, regardless of settings.

The settings scaling at each resolution follows a predictable pattern. At 1080p, the difference between Low and Ultra is 67 FPS (104 to 37), representing a 64.4% drop. At 1440p, the difference is 42 FPS (66 to 24), a 63.6% drop. At 4K, the difference is 22 FPS (35 to 13), a 62.9% drop. This consistency suggests that the GPU's performance scales linearly with the workload, but the absolute levels are too low for anything beyond 1080p Low.

GPU Role

The Intel Arc B370 is an integrated graphics solution based on the Xe3-LPG architecture (Panther Lake) with a 3 nm process node. It features 1280 shading units, 40 TMUs, and 20 ROPs, with a boost clock of 2400 MHz and a base clock of 300 MHz. The GPU's 6.144 TFLOPS FP32 performance is its key specification, but this is extremely low for modern gaming. The 3DMark Steel Nomad DX12 score of 1184 places it in the 5th percentile of all GPUs, with an average benchmark score of 1184.

The GPU's memory configuration is "System Shared," meaning it uses the system's DDR5 memory rather than dedicated VRAM. The memory bandwidth is listed as "System Dependent," which means it relies on the CPU's dual-channel memory bandwidth of 89.6 GB/s. This shared memory architecture is a significant limitation, as the GPU must compete with the CPU for memory bandwidth, further constraining performance.

The GPU's nearest rivals in benchmark scores are all legacy components: the ATI Mobility Radeon HD 5570 (1186, -0.2% delta), the ATI Radeon HD 5770 (1190, -0.5% delta), and the AMD Radeon HD 7650M (1192, -0.7% delta). This places the Arc B370 in the same performance class as graphics cards from over a decade ago, which explains its poor Fortnite performance. The GPU's 25 W TDP and "IGP" slot width confirm its integrated nature, designed for low-power devices rather than gaming.

In this game, the GPU's role is the definitive bottleneck. The 10 RT cores are irrelevant for Fortnite's rasterized rendering, and the 20 ROPs limit pixel fill rate to 48.00 GPixel/s, which is insufficient for high resolutions. The texture rate of 96.00 GTexel/s is also low, causing texture-heavy scenes to suffer. The measured FPS data shows that the GPU's performance ceiling is around 104 FPS at 1080p Low, and it degrades rapidly with any increase in resolution or settings.

FAQ

Q: What is the best resolution and settings combination for this setup?

A: The data shows that 1920x1080 with Low settings achieves 104 FPS, which is the highest measured average. Medium settings at 1080p yield 73 FPS, which is still playable. All other configurations fall below 66 FPS.

Q: Is 4K gaming possible with this combo?

A: No. The highest 4K result is 35 FPS at Low settings, and Ultra settings produce only 13 FPS. These frame rates are below the threshold for smooth gameplay.

Q: How does the GPU compare to its nearest rivals?

A: The Intel Arc B370 scores 1184 in 3DMark Steel Nomad DX12, which is 0.2% lower than the ATI Mobility Radeon HD 5570 (1186) and 0.5% lower than the ATI Radeon HD 5770 (1190). All rivals are within a 1.4% delta.

Q: How does the CPU's benchmark performance influence the combo rank?

A: The CPU's average benchmark score of 54762 places it 0.6% lower than the Intel Core Ultra 5 245KF (55093) and 1.3% higher than the Intel Core Ultra 5 245K (54053). Despite this strong CPU performance, the combo ranks 2517 out of 2740 due to GPU limitations.

Q: What is the frame time variance like at Medium settings?

A: At 1080p Medium, the FPS ranges from 62 to 84 (average 73). At 1440p Medium, the range is 39 to 53 (average 46). At 4K Medium, the range is 21 to 28 (average 25). The spread is consistent, indicating stable frame pacing.

Q: Does the CPU's 12-core/24-thread configuration help with Fortnite?

A: The CPU's high thread count and 128 MB L3 cache are largely underutilized, as the GPU becomes the bottleneck at all tested settings. The maximum FPS of 104 at 1080p Low is constrained by the GPU's throughput, not CPU capability.