Doom

The AMD Ryzen 7 5700 paired with the Intel Arc B390 presents a unique performance profile in Doom, characterized by a significant bottleneck at the graphics stage. The benchmark data indicates that this combination delivers playable frame rates only at lower resolutions, with the integrated GPU's capabilities being the primary limiting factor across all tested settings. This analysis breaks down the measured FPS, scaling behavior, and component roles based strictly on the provided dataset.

Resolution Scaling

The measured FPS data shows a pronounced and predictable decline as resolution increases from 1920x1080 to 3840x2160. At 1080p with Low settings, the combo achieves an average of 107 FPS, which drops to 69 FPS at 1440p and further to 37 FPS at 4K. This represents a 65% reduction in average FPS from 1080p to 4K at Low settings, indicating that the rendering load scales heavily with pixel count.

The scaling pattern is consistent across all quality presets. For High settings, the average FPS falls from 78 at 1080p to 51 at 1440p (a 35% drop) and then to 28 at 4K (a 64% drop from 1080p). The Medium preset shows a similar trajectory: 93 FPS at 1080p, 60 FPS at 1440p, and 33 FPS at 4K. The Ultra preset, which is the most demanding, starts at 64 FPS at 1080p, drops to 41 FPS at 1440p, and bottoms out at 22 FPS at 4K.

The data reveals that the transition from 1080p to 1440p incurs a moderate performance penalty (roughly 30-38% reduction depending on settings), while the jump from 1440p to 4K is more severe (approximately 45-47% reduction). This nonlinear scaling suggests that the Intel Arc B390, with its system-shared memory and 3 nm Panther Lake chip, becomes increasingly saturated as the pixel throughput demands rise. At 4K, even the Low preset only reaches 37 FPS, which is below the threshold for smooth gameplay, while the Ultra preset at 4K falls to 22 FPS. The limiting component is clearly the GPU, as the CPU's role in this resolution scaling is minimal; the bottleneck shifts almost entirely to the graphics subsystem at higher resolutions.

How This Combo Ranks

In the database of tested combinations for Doom, this specific pairing of the AMD Ryzen 7 5700 and Intel Arc B390 ranks at position 2580 out of 2930 total combos. This places it in the 12th percentile of all tested configurations, meaning roughly 88% of other CPU-GPU combos achieve higher average frame rates in this game. The rank of 2580 indicates that this setup is not competitive for high-refresh-rate or high-resolution play, but it is not at the very bottom of the list either.

The combo's overall standing is heavily influenced by the GPU's low benchmark percentile. The Intel Arc B390 sits at the 9th percentile among all GPUs, with an average benchmark score of 1482 in the 3DMark Steel Nomad DX12 test. This score is remarkably close to its nearest rivals: the NVIDIA GeForce GT 520MX (score 1463, deltaPct 1.3), the NVIDIA GeForce 800M (score 1460, deltaPct 1.5), the NVIDIA GeForce GT 625 OEM (score 1446, deltaPct 2.5), and the NVIDIA GeForce GT 710 (score 1443, deltaPct 2.7). The Arc B390 leads these older discrete GPUs by margins of only 1.3% to 2.7%, which is within the noise of typical benchmark variation.

In contrast, the CPU is a far more capable component. The Ryzen 7 5700 ranks at the 78th percentile among all CPUs, with an average benchmark score of 25517. Its nearest rivals include the Intel Xeon D-2752TER (score 25530, deltaPct -0.1), the AMD Ryzen 5 7640U (score 25485, deltaPct 0.1), the AMD Ryzen 5 6600H (score 25550, deltaPct -0.1), and the AMD Ryzen 7 5825U (score 25446, deltaPct 0.3). These deltas are all within 0.3% of the Ryzen 7 5700's score, indicating that the CPU performs essentially identically to its closest competitors.

The disparity between the CPU's 78th percentile ranking and the GPU's 9th percentile ranking explains the combo's overall position. The data shows that this pairing is fundamentally unbalanced, with the GPU acting as a severe constraint on the system's ability to render Doom at acceptable frame rates, regardless of the CPU's ample headroom.

GPU Role

The Intel Arc B390 is an integrated graphics solution based on the Xe3-LPG architecture, built on Intel's 3 nm process node. Its performance profile in Doom is directly tied to its modest specifications: 1536 shading units, 48 texture mapping units, and 24 ROPs. The GPU operates with a base clock of 300 MHz and a boost clock of 2500 MHz, which the benchmark results indicate is insufficient for demanding resolutions.

A critical aspect of this GPU is its memory configuration. The Arc B390 uses "System Shared" memory, with the bus width and bandwidth also listed as "System Shared" and "System Dependent," respectively. This means the GPU relies on the CPU's DDR4 memory, which operates at a bandwidth of 51.2 GB/s per the CPU's specifications. This shared memory architecture creates a significant bottleneck, as the GPU must compete with the CPU for memory access, and the system-dependent bandwidth cannot match the dedicated VRAM found in discrete graphics cards.

The measured FPS figures reflect this limitation. At 1080p, the GPU manages 107 FPS on Low settings, but this drops to 64 FPS on Ultra, a 40% reduction. At 4K, the performance collapses further: 37 FPS on Low and 22 FPS on Ultra. The GPU's pixel rate is rated at 60.00 GPixel/s and its texture rate at 120.0 GTexel/s, which are theoretical maxima that are rarely achieved in practice due to memory constraints.

In terms of API support, the GPU is listed as DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, which means it is technically capable of running modern game features. However, the benchmark data shows that this capability does not translate into playable performance at higher resolutions. The GPU's 3DMark Steel Nomad DX12 score of 1482 places it at the 9th percentile, and its nearest rivals are all legacy low-end discrete GPUs from NVIDIA. This confirms that the Arc B390 is positioned at the entry-level tier, and its role in this combo is to limit performance severely, especially at 1440p and 4K.

Settings Recommendations

Based on the measured FPS rows, the optimal settings depend heavily on the target resolution and desired frame rate. At 1920x1080, the Low preset delivers an average of 107 FPS, which is the highest measured frame rate in the entire dataset. The Medium preset at 1080p achieves 93 FPS, still well above the 60 FPS threshold, while High reaches 78 FPS. Even Ultra at 1080p manages 64 FPS, which is playable for most users. The data suggests that at 1080p, the High preset strikes the best balance between visual quality and performance, offering 78 FPS while still providing significant graphical improvements over Low.

At 2560x1440, the situation changes. The Low preset yields 69 FPS, which is still smooth, but Medium drops to 60 FPS exactly, and High falls to 51 FPS. The Ultra preset at 1440p only manages 41 FPS, which is below the ideal range for fast-paced FPS gameplay. For 1440p, the Low preset is the only option that provides a comfortable margin above 60 FPS, while Medium is borderline at exactly 60 FPS. Users who prioritize visual fidelity over frame rate might accept High at 51 FPS, but this is not recommended for competitive play.

At 3840x2160, no preset achieves a playable frame rate. The Low preset reaches 37 FPS, Medium 33 FPS, High 28 FPS, and Ultra only 22 FPS. All of these are below the 60 FPS standard and even below the 30 FPS minimum for acceptable motion fluidity. The data indicates that 4K is not a viable resolution for this combo, and users should avoid it entirely or drastically reduce resolution scaling.

The best overall experience, per the measured rows, is the 1080p High preset at 78 FPS. This provides a high frame rate that is responsive for an FPS title while maintaining a level of graphical detail that is superior to Low. For users who demand maximum smoothness, 1080p Low at 107 FPS is the fastest option, but the visual trade-off is substantial. The Medium preset at 1080p (93 FPS) serves as a middle ground, offering 60% of the FPS of Low while improving visual quality.

FAQ

Q: What is the highest average FPS achievable with this combo in Doom?

A: The highest measured average FPS is 107, achieved at 1920x1080 resolution with the Low settings preset.

Q: Can this system run Doom at 4K resolution?

A: No, the data shows that at 3840x2160, the best average FPS is 37 on Low settings, which is below the threshold for smooth gameplay. The Ultra preset at 4K only reaches 22 FPS.

Q: How does the Intel Arc B390 compare to its nearest GPU rivals?

A: The Arc B390 has an average benchmark score of 1482, which is 1.3% higher than the NVIDIA GeForce GT 520MX (1463) and 2.7% higher than the NVIDIA GeForce GT 710 (1443). It sits at the 9th percentile among all GPUs.

Q: What is the performance difference between 1080p and 1440p at Medium settings?

A: At 1080p Medium, the average FPS is 93, while at 1440p Medium, it drops to 60 FPS. This represents a 35% reduction in performance.

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

A: The GPU is clearly the limiting factor. The CPU ranks at the 78th percentile with an average score of 25517, while the GPU ranks at the 9th percentile with a score of 1482. The FPS data shows steep drops with increasing resolution, which is characteristic of a GPU bottleneck.

Q: What settings provide the best experience for this combo?

A: The 1920x1080 High preset at 78 FPS offers the best balance of visual quality and performance. For maximum frame rate, the 1080p Low preset at 107 FPS is the fastest, but it sacrifices significant visual detail.

CPU Role

The AMD Ryzen 7 5700 is a desktop processor from the 5000 series, built on the Zen 3 architecture with the Cezanne codename. It features 8 cores and 16 threads, with a base clock of 3.70 GHz and a boost clock of 4.60 GHz. The CPU has a 65 W TDP and is manufactured on TSMC's 7 nm process node, with 10,700 million transistors on a die size of 180 mm².

In this combo, the CPU's role is largely to feed the GPU with data, and its performance headroom is substantial. The Ryzen 7 5700's benchmark scores indicate strong multi-threaded and single-threaded capability. In Cinebench R23, it scores 20655 in multi-core and 2916 in single-core. In Geekbench, it achieves 9959 multi-core and 1907 single-core. The Passmark multi-thread score is 24303, and the single-thread score is 3296.

The CPU's memory support is DDR4 with a dual-channel bus, providing a memory bandwidth of 51.2 GB/s. This is relevant because the GPU uses system-shared memory, meaning the CPU's memory bandwidth directly impacts GPU performance. The 16 MB of L3 cache and 512 KB of L2 cache per core provide adequate data locality for game workloads.

Compared to its nearest rivals, the Ryzen 7 5700's average benchmark score of 25517 is essentially tied with the Intel Xeon D-2752TER (25530, -0.1% delta), AMD Ryzen 5 7640U (25485, +0.1% delta), AMD Ryzen 5 6600H (25550, -0.1% delta), and AMD Ryzen 7 5825U (25446, +0.3% delta). These differences are negligible, confirming that the CPU is not the source of performance variance in this combination.

The benchmark data shows that the CPU is far more capable than the GPU. In Doom, the CPU's 8 cores and 16 threads provide ample processing power for game logic and physics, but the frame rates are constrained by the GPU's inability to render frames quickly enough. The CPU's 78th percentile ranking versus the GPU's 9th percentile ranking illustrates this imbalance clearly. The measured FPS at 1080p Low (107 FPS) is likely near the maximum the GPU can produce, and even at this resolution, the CPU is not the bottleneck; rather, the GPU's shared memory architecture and limited shading units are the primary constraints.

Measured FPS Breakdown

The following is the complete set of measured average FPS values from the dataset, organized by resolution and settings.

1920x1080:

• Low: 107 FPS average
• Medium: 93 FPS average, with a minimum of 79 FPS and maximum of 107 FPS
• High: 78 FPS average
• Ultra: 64 FPS average

2560x1440:

• Low: 69 FPS average
• Medium: 60 FPS average, with a minimum of 51 FPS and maximum of 69 FPS
• High: 51 FPS average
• Ultra: 41 FPS average

3840x2160:

• Low: 37 FPS average
• Medium: 33 FPS average, with a minimum of 28 FPS and maximum of 37 FPS
• High: 28 FPS average
• Ultra: 22 FPS average

The data shows a clear hierarchy across resolutions. At 1080p, the spread between Low and Ultra is 43 FPS, indicating that the GPU has some headroom to handle increased graphical load. At 1440p, the spread narrows to 28 FPS, and at 4K, it narrows further to 15 FPS. This compression of the FPS range at higher resolutions suggests that the GPU becomes fully saturated, and the quality settings have diminishing impact on performance.

The minimum and maximum FPS values for the Medium preset provide insight into frame time consistency. At 1080p, the Medium preset ranges from 79 to 107 FPS, a variance of 28 FPS. At 1440p, the range is 51 to 69 FPS, a variance of 18 FPS. At 4K, the range is 28 to 37 FPS, a variance of 9 FPS. This decreasing variance with increasing resolution indicates that the GPU is more consistently bottlenecked at higher resolutions, leading to more stable but lower frame rates.

The overall rank of this combo is 2580 out of 2930, which corresponds to the 12th percentile. This ranking is consistent with the GPU's low performance tier and confirms that while the CPU is a strong component, the combination as a whole is not suitable for demanding gaming scenarios. The measured FPS at 1080p are acceptable for casual play, but the inability to maintain 60 FPS at 1440p and above is a definitive limitation of the Intel Arc B390 in this configuration.