Doom

The AMD Ryzen 7 5700G paired with the Intel Arc B390 presents a peculiar case in the Doom benchmark database. This combination, ranked 2580 out of 2930 tested combos, lands in the bottom twelfth percentile of all systems tested, a position driven almost entirely by the graphics solution. The data shows a configuration where a capable 8-core processor is hamstrung by an integrated GPU that, while architecturally modern, delivers frame rates that struggle to maintain playability at higher resolutions.

Resolution Scaling

The measured FPS data reveals a steep and consistent performance cliff as resolution increases. At 1080p with Low settings, the combo achieves 107 FPS, which drops to 69 FPS at 1440p, and further to 37 FPS at 4K. This represents a 65% reduction in frame rate when moving from 1080p to 4K at Low settings. The scaling pattern is nearly linear across all quality presets, suggesting the GPU is the sole limiting factor rather than any CPU bottleneck.

At High settings, the drop from 78 FPS at 1080p to 51 FPS at 1440p is a 35% loss, while the subsequent drop to 28 FPS at 4K represents a further 45% reduction. The Medium preset tells a similar story: 93 FPS at 1080p falls to 60 FPS at 1440p and bottoms out at 33 FPS in 4K. These numbers indicate that the Arc B390's rendering pipeline becomes saturated quickly as pixel count grows, with the 4K results falling below the 30 FPS threshold that most players consider the absolute minimum for a playable experience.

The frame time data, where available, reinforces this GPU-bound conclusion. At 1440p Medium, the spread between minimum and maximum FPS is 51 to 69, a variance of 18 FPS that suggests the GPU is working near its limits. The 1080p Medium range of 79 to 107 FPS shows similar volatility, indicating that even at lower resolutions, the integrated graphics solution is not delivering consistent frame pacing. The data strongly suggests that this combo is only viable for 1080p gaming, with 1440p representing a marginal experience and 4K being effectively unplayable except at the absolute lowest settings.

CPU Role

The Ryzen 7 5700G is a Zen 3 architecture processor with 8 cores and 16 threads, running at a base clock of 3.80 GHz and a boost clock of 4.60 GHz. In the context of Doom, a game released in 2016, this processor is dramatically overqualified. The game's engine was designed for an era of 4-core CPUs, and the 5700G's 16 MB of L3 cache and 51.2 GB/s of memory bandwidth are more than sufficient to feed even the most demanding frame rates.

The CPU's benchmark scores confirm its capability. In Cinebench R23, it scores 12830.5 in multi-core and 1494 in single-core. The single-threaded performance is particularly relevant for Doom, which relies heavily on a few primary threads. The 3DMark results show a strong scaling curve: 899 in single-thread, 1758 in 2-threads, 3389 in 4-threads, and 5648 in 8-threads. This near-linear scaling indicates that the processor has ample headroom to handle the game's thread scheduling without becoming a constraint.

The data indicates that at no point in any resolution or settings combination does the CPU become the limiting factor. Even at 1080p Low, where the GPU is producing 107 FPS, the processor is likely operating well below its maximum capacity. The 5700G's 65W TDP and 7nm process node mean it can sustain high clocks without thermal throttling in most chassis. In this pairing, the CPU is effectively waiting on the GPU at every turn, and the measured results reflect a pure GPU limitation scenario.

Settings Recommendations

Based strictly on the measured FPS rows, the optimal experience for this combo is at 1080p with Low settings, where the system achieves 107 FPS. This is the only configuration that clears the 100 FPS mark, providing a smooth and responsive experience ideal for a fast-paced FPS like Doom. The jump from Low to Medium at 1080p costs 14 FPS (from 107 to 93), which is a 13% performance penalty for what is typically a modest visual improvement.

At 1440p, the choices become more constrained. Low settings yield 69 FPS, which is playable but not ideal for competitive play. Medium settings drop to 60 FPS, and High settings fall to 51 FPS. The Ultra preset at 1440p produces only 41 FPS, which is below the threshold for a fluid Doom experience. Given that the game's action demands quick reflexes, players should prioritize frame rate over visual fidelity.

The 4K results are uniformly poor. Even at Low settings, the system only manages 37 FPS, which is insufficient for this genre. The Ultra preset at 4K produces a slideshow-like 22 FPS. The data suggests that 4K is not a viable resolution for this hardware combination under any settings. For players intent on higher resolutions, the Low preset at 1440p offers the best balance, delivering 69 FPS while maintaining a 95% performance margin over the 4K Low figure.

How This Combo Ranks

The combo rank of 2580 out of 2930 places this pairing in the 12th percentile of all tested combinations in Doom. This is a poor ranking that reflects the GPU's limitations rather than the CPU's capabilities. The Ryzen 7 5700G itself holds a 79th percentile ranking among all CPUs, with an average benchmark score of 27051. Its nearest rivals include the Intel Core i9-9900K, which scores 27097 (a 0.2% difference), and the AMD Ryzen AI 7 445, which scores 26936 (a 0.4% difference).

The stark contrast between the CPU's strong relative standing and the combo's poor ranking underscores the imbalance of this pairing. The Intel Arc B390, by contrast, sits in the 9th percentile of all GPUs, with an average benchmark score of just 1482. Its nearest rivals are the NVIDIA GeForce GT 520MX (1463, 1.3% difference) and the NVIDIA GeForce 800M (1460, 1.5% difference). These are entry-level parts from a decade ago, highlighting the Arc B390's position at the very bottom of the graphics performance hierarchy.

The disparity is clear: the CPU is in the top 21% of all processors, while the GPU is in the bottom 9% of all graphics solutions. The combo's rank of 2580 is dragged down by the GPU, and the data suggests that pairing this CPU with even a modest discrete GPU would yield dramatically better results. As configured, this combo is effectively a CPU showcase held back by its integrated graphics.

GPU Role

The Intel Arc B390 is a radically different graphics solution, built on the Xe3-LPG architecture and manufactured on Intel's 3nm process. It operates with a base clock of 300 MHz and a boost clock of 2500 MHz, a wide frequency range that allows for aggressive power management. The GPU features 1536 shading units, 48 texture mapping units, and 24 raster operation pipelines, along with 12 ray tracing cores.

The memory configuration is notably unusual: the Arc B390 uses System Shared memory, meaning it draws from the system's DDR4 RAM rather than dedicated VRAM. The memory bus width is also System Shared, and bandwidth is listed as System Dependent. This architecture explains the GPU's poor performance in Doom, as the lack of dedicated high-bandwidth memory creates a significant bottleneck. The Ryzen 7 5700G's dual-channel DDR4 memory, with a theoretical bandwidth of 51.2 GB/s, is shared between the CPU and GPU, further constraining graphics performance.

The GPU's raw compute figures are modest: 7.680 TFLOPS of FP32 performance and 15.36 TFLOPS of FP16 (2:1 ratio). The pixel rate is 60.00 GPixel/s and the texture rate is 120.0 GTexel/s. These numbers place the Arc B390 in the same performance class as the NVIDIA GeForce GT 710, which scores 1443 in the same benchmark (a 2.7% difference). The GPU's 80W TDP and IGP slot width indicate it is designed for mobile or compact systems, not high-performance desktop gaming.

In Doom, the GPU's limitations are exposed at every resolution. The 1080p Low result of 107 FPS is the GPU's ceiling, and any increase in settings or resolution causes a rapid degradation. The 4K Ultra result of 22 FPS is a stark illustration of the memory bandwidth constraints, as the shared memory system cannot keep up with the demands of high-resolution rendering. The GPU's low 9th percentile ranking among all GPUs is well-earned, and the data shows it is simply not suitable for modern gaming beyond the most basic settings.

Measured FPS Breakdown

The complete measured FPS data for this combo across all resolutions and settings is as follows:

At 3840x2160 (4K), the system achieves 28 FPS on High, 37 FPS on Low, 33 FPS on Medium (with a minimum of 28 and maximum of 37), and 22 FPS on Ultra. The 4K results show a clear hierarchy where lower settings yield higher frame rates, but none reach playable levels. The gap between Low and Ultra is 15 FPS, a 68% performance difference, indicating that visual settings have a significant impact even at this resolution.

At 2560x1440, the results improve substantially. High settings produce 51 FPS, Low produces 69 FPS, Medium produces 60 FPS (with a range of 51 to 69), and Ultra produces 41 FPS. The 1440p Low result is the only configuration at this resolution that exceeds 60 FPS, making it the recommended choice for players with 1440p displays. The drop from Low to Ultra is 28 FPS, a 40% reduction, which is less severe than at 4K but still significant.

At 1920x1080, the system finally achieves playable frame rates across most settings. High produces 78 FPS, Low produces 107 FPS, Medium produces 93 FPS (with a range of 79 to 107), and Ultra produces 64 FPS. The 1080p Low result is the best measured performance in the entire dataset, and even Ultra maintains a playable 64 FPS. The scaling from Low to Ultra shows a 43 FPS drop, a 40% reduction, which mirrors the pattern seen at 1440p.

The data reveals a consistent pattern: the Arc B390 scales poorly with resolution, and the performance gap between Low and Ultra settings remains relatively constant across all resolutions. The 1080p Medium result of 93 FPS with a minimum of 79 FPS suggests some frame pacing instability, but it remains the best compromise between visual quality and performance for this combo. For players seeking the highest frame rates, 1080p Low at 107 FPS is the clear choice, while those prioritizing visuals should stick to 1080p High at 78 FPS, as the jump to Ultra only reduces performance without a proportional visual benefit in this dataset.