Undisputed

The AMD Ryzen 5 8400F paired with the Intel Arc B390 produces a distinctive performance profile in Undisputed, one that is heavily dictated by resolution and settings. Benchmark data shows a system that is capable at lower resolutions but struggles to maintain fluid frame rates at higher graphical loads. The measured results indicate a clear hierarchy where the GPU becomes the primary limiting factor as resolution increases, while the CPU provides consistent headroom throughout the tested scenarios.

Resolution Scaling

The FPS drop from 1080p to 4K is dramatic and reveals the nature of the bottleneck. At Low settings, the average frame rate falls from 127 FPS at 1920x1080 to 92 FPS at 2560x1440, a reduction of 35 FPS. Moving to 3840x2160, the average drops further to 58 FPS. This represents a 54% decrease in average FPS from 1080p to 4K at Low settings. The scaling pattern is consistent across all presets, indicating that resolution is a dominant factor in performance.

At High settings, the progression is equally steep: 76 FPS at 1080p, 55 FPS at 1440p, and 35 FPS at 4K. The 4K result at High is below the generally accepted threshold for smooth gameplay, which suggests that this combo is not suited for maximum resolution with high visual fidelity. The data shows that the gap between 1080p and 1440p is smaller than the gap between 1440p and 4K, a sign that the graphics processor is being progressively overwhelmed as pixel count increases.

The Medium settings row provides additional insight with min/max FPS data. At 1920x1080 Medium, the average is 91 FPS with a minimum of 78 and maximum of 105. At 2560x1440 Medium, the average drops to 66 FPS with a minimum of 56 and maximum of 76. At 3840x2160 Medium, the average falls to 42 FPS with a minimum of 36 and maximum of 48. The minimum FPS at 4K Medium is 36, which means even the worst-case frame time is below 60 FPS, making the experience feel stuttery during intense scenes.

The scaling behavior points to a system where the Intel Arc B390 is the limiting component. The CPU, with its six cores and twelve threads, appears capable of feeding the GPU at lower resolutions, but as the rendering load increases, the GPU's throughput declines rapidly. The fact that the 1080p Low result of 127 FPS is more than double the 4K High result of 35 FPS underscores how sensitive this combo is to resolution changes.

GPU Role

The Intel Arc B390 is an integrated graphics solution based on the Xe3-LPG architecture, fabricated on a 3 nm process. Its boost clock reaches 2500 MHz, with a base clock of 300 MHz. The memory is system shared, meaning it draws from the main system RAM, and its bandwidth is system dependent. This design choice has direct implications for the measured results, as the GPU must compete with the CPU for memory bandwidth.

The GPU has 1536 shading units, 48 texture mapping units, and 24 raster operation units. Its FP32 performance is 7.680 TFLOPS, which is modest by discrete GPU standards. The benchmark score for this GPU in 3DMark Steel Nomad (DX12) is 1482, placing it in the 9th percentile of all GPUs. The nearest rivals in terms of average score are the NVIDIA GeForce GT 520MX (1463, 1.3% faster), the NVIDIA GeForce 800M (1460, 1.5% faster), the NVIDIA GeForce GT 625 OEM (1446, 2.5% faster), and the NVIDIA GeForce GT 710 (1443, 2.7% faster). This places the Arc B390 in a very low-performance tier, which is consistent with the FPS figures observed in Undisputed.

The GPU's role in the measured results is clear. At 1080p Low, the game runs at 127 FPS, which suggests the GPU can handle a light load. However, as settings are raised to Ultra, the 1080p average drops to 49 FPS. The Ultra preset at 4K produces only 22 FPS. The GPU's limited rasterization capability, evidenced by its 24 ROPs and 7.680 TFLOPS FP32 throughput, is insufficient for high-resolution, high-detail rendering. The system shared memory also means that texture bandwidth is not dedicated, which can further hamper performance in memory-intensive scenes.

The pixel rate of 60.00 GPixel/s and texture rate of 120.0 GTexel/s provide theoretical maxima that are not achieved in practice due to other bottlenecks. The benchmark data confirms that this GPU is not designed for demanding titles at high settings, and the measured FPS in Undisputed reflects that limitation. The fact that the GPU's percentile rank is 9 indicates that it outperforms only a small fraction of the database's tested GPUs, which contextualizes the low frame rates seen at higher resolutions.

CPU Role

The AMD Ryzen 5 8400F is a desktop processor from the 8000 series, built on the Zen 4 architecture with the codename Phoenix. It features 6 cores and 12 threads, with a base clock of 4.20 GHz and a boost clock of 4.70 GHz. The CPU has 64 KB of L1 cache per core, 1 MB of L2 cache per core, and 16 MB of shared L3 cache. It supports DDR5 memory with a dual-channel bus and a maximum bandwidth of 83.2 GB/s. The CPU has a TDP of 65 W and is built on a 4 nm process by TSMC.

The CPU's benchmark results show a strong performer for its class. In Cinebench R23, it scores 20851 in multicore and 2943 in single-core. Its 3DMark scores are 951 for single-thread, 1874 for 2-threads, 3563 for 4-threads, 5275 for 8-threads, and 6165 for max threads. The Passmark multithread score is 24389, with a single-thread score of 3685. The average benchmark score is 25005, placing it in the 77th percentile of all CPUs. Its nearest rivals include the AMD Ryzen 5 7500F (24964, 0.2% faster), the Intel Core i7-11850H (24935, 0.3% faster), the Intel Core i7-13620H (24911, 0.4% faster), and the AMD EPYC 9474F (25103, 0.4% slower).

In Undisputed, the CPU's role is to provide enough processing power to keep the GPU fed. The data shows that at 1080p Low, the combo reaches 127 FPS, which indicates that the CPU is not the limiting factor at that setting. The 3DMark single-thread score of 951 and Cinebench R23 single-core score of 2943 suggest adequate per-core performance for a sports title like Undisputed, which may not scale perfectly across many threads. The 12 threads are available, but the game's engine likely benefits more from strong single-core performance, which this CPU provides.

The CPU's memory bandwidth of 83.2 GB/s is shared with the GPU's system shared memory. This could be a bottleneck in scenarios where both components require significant data transfer. However, the FPS data does not show a clear CPU limitation at any resolution, as the FPS consistently drops with increasing resolution and settings, which is a characteristic of a GPU-bound system. The CPU's percentile rank of 77 is vastly higher than the GPU's rank of 9, confirming that the processor is the stronger component in this pairing.

How This Combo Ranks

The combination of the AMD Ryzen 5 8400F and Intel Arc B390 ranks 2491 out of 2813 tested combos in Undisputed. This places it in the bottom 11.4% of all combos in the database. The rank is a direct reflection of the GPU's low performance, as the CPU is a mid-range part that would likely rank much higher if paired with a more capable graphics solution.

The discrepancy between the CPU's 77th percentile and the GPU's 9th percentile illustrates an imbalanced pairing. The CPU is capable of delivering high frame rates in lighter workloads, but the GPU cannot translate that capability into high FPS in Undisputed at demanding settings. For example, the 1080p Low result of 127 FPS shows that the CPU can drive high frame rates when the GPU load is low. However, the 4K Ultra result of 22 FPS shows that the GPU holds the system back significantly.

Compared to other combos, this rank suggests that users with this setup will experience performance below the median. The nearest GPU rivals, such as the NVIDIA GeForce GT 710, are entry-level parts from years ago, indicating that the Arc B390 is positioned at the very bottom of the performance spectrum. The combo's rank of 2491 out of 2813 means that only 322 combos perform worse, which is a small fraction of the tested configurations. This data implies that the system is suitable only for low-resolution, low-setting gaming in Undisputed, or for other less demanding tasks.

Settings Recommendations

Based on the measured FPS rows, the best experience is achieved at 1920x1080 with Low settings, where the average FPS is 127. This is the only tested configuration that provides a frame rate well above 60 FPS, offering a smooth and responsive experience. The Medium setting at 1080p yields 91 FPS, which is also playable, but the Low setting provides a significant margin for stability.

At 2560x1440, the Low setting produces 92 FPS, which is acceptable, but the High setting drops to 55 FPS, which may be borderline for some users. At 3840x2160, no setting achieves 60 FPS, with Low at 58 FPS and Medium at 42 FPS. The Ultra setting at any resolution is not recommended, as it produces 49 FPS at 1080p, 35 FPS at 1440p, and 22 FPS at 4K.

For a consistent experience, the data suggests using 1080p Low or Medium. The Medium setting at 1080p has a minimum FPS of 78, which ensures that frame drops are less noticeable. The Low setting at 1080p has no min/max data but the average of 127 FPS indicates high headroom. If resolution is a priority, 1440p Low is the best option, but users should be prepared for a lower frame rate. The 4K resolution should be avoided entirely, as even Low settings fail to reach 60 FPS.

Measured FPS Breakdown

At 1920x1080, the measured average FPS values are as follows: Low is 127 FPS, Medium is 91 FPS (min 78, max 105), High is 76 FPS, and Ultra is 49 FPS. The progression from Low to Ultra shows a steady decline, with the Ultra setting being less than half of the Low setting's performance.

At 2560x1440, the averages are: Low is 92 FPS, Medium is 66 FPS (min 56, max 76), High is 55 FPS, and Ultra is 35 FPS. The drop from 1080p to 1440p is significant, with the Low setting losing 35 FPS and the High setting losing 21 FPS.

At 3840x2160, the averages are: Low is 58 FPS, Medium is 42 FPS (min 36, max 48), High is 35 FPS, and Ultra is 22 FPS. The 4K results are consistently below 60 FPS, with the Ultra setting producing a frame rate that is likely unplayable for most users. The Medium setting at 4K has a minimum of 36 FPS, which indicates that even the average of 42 FPS is accompanied by noticeable stutters during intense gameplay.

FAQ

*Q: What is the best resolution and setting for this combo in Undisputed?*

A: The best measured result is at 1920x1080 with Low settings, achieving an average of 127 FPS. For a balance of quality and performance, 1080p Medium at 91 FPS is also a good option.

*Q: Can this combo handle 4K gaming in Undisputed?*

A: No. Even at Low settings, the average FPS at 3840x2160 is 58, which is below the 60 FPS threshold. Higher settings at 4K produce averages of 42 FPS (Medium), 35 FPS (High), and 22 FPS (Ultra).

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

A: The Intel Arc B390 has an average benchmark score of 1482, which is 1.3% slower than the NVIDIA GeForce GT 520MX (1463) and 2.7% faster than the NVIDIA GeForce GT 710 (1443). Its percentile rank is 9, placing it in the bottom tier.

Q: Is the CPU or GPU the limiting factor in this system?

A: The GPU is the limiting factor. The CPU's percentile rank is 77, while the GPU's is 9. The FPS drops consistently with increasing resolution and settings, which is characteristic of a GPU-bound system.

*Q: What is the combo's ranking among all tested systems in Undisputed?*

A: The combo ranks 2491 out of 2813 tested combos, placing it in the bottom 11.4% of all configurations.

Q: What are the CPU's key specifications?

A: The AMD Ryzen 5 8400F has 6 cores and 12 threads, with a base clock of 4.20 GHz and a boost clock of 4.70 GHz. It has 16 MB of shared L3 cache and supports DDR5 memory with a bandwidth of 83.2 GB/s.