Doom

The AMD Ryzen 5 4600G paired with the Intel Arc B390 is a combination that lands at the very bottom of the performance hierarchy for Doom, ranking 2580th out of 2930 tested combos. This is a system built around an integrated GPU, and the benchmark results consistently reflect that limitation. The data shows a configuration that can play the game, but only at lower resolutions and settings, and the experience degrades rapidly as you push visual quality or pixel count.

Resolution Scaling

The FPS drop from 1080p to 4K is severe and tells a clear story about where the bottleneck lives. At 1080p with Low settings, the combo produces 107 FPS average. Stepping up to 1440p drops that to 69 FPS, a 38 FPS loss. Moving to 4K Low yields just 37 FPS, which is a 70 FPS drop from the 1080p baseline. This massive scaling penalty—a 65% reduction in average FPS from 1080p to 4K—indicates that the GPU is completely overwhelmed at higher resolutions.

The pattern holds across all settings. At High settings, the combo goes from 78 FPS at 1080p down to 51 FPS at 1440p and then to 28 FPS at 4K. The Ultra preset shows the same trajectory: 64 FPS at 1080p, 41 FPS at 1440p, and a nearly unplayable 22 FPS at 4K. These numbers suggest that the limiting component is unquestionably the graphics processor. The CPU has enough headroom to feed frames at 1080p, but the GPU simply runs out of pixel-pushing capability as resolution increases.

What is notable is that the gap between 1440p and 4K is larger than the gap between 1080p and 1440p for every settings tier. For Medium settings, the spread is 93 FPS to 60 FPS to 33 FPS. The incremental loss from 1440p to 4K is 27 FPS, while the loss from 1080p to 1440p is 33 FPS. That is a slightly larger absolute drop at the lower resolution step, but the percentage loss is steeper when moving to 4K. This behavior is typical of a GPU that is hitting its absolute memory bandwidth and shading limits, where the additional pixels at 4K exact a disproportionate toll.

GPU Role

The Intel Arc B390 is an integrated graphics solution built on the Xe3-LPG architecture with a Panther Lake chip. It operates with a base clock of 300 MHz and a boost clock of 2500 MHz, which are wide ranges that allow for significant dynamic scaling. The GPU has 1536 shading units, 48 texture mapping units, and 24 raster output units. It also includes 12 ray tracing cores, though Doom from 2016 does not utilize ray tracing.

The memory configuration is entirely system-shared, meaning the GPU borrows from the CPU's DDR4 memory pool. The bandwidth is listed as "System Dependent," which in this configuration with a dual-channel Ryzen 5 4600G translates to 51.2 GB/s of available memory bandwidth. This shared memory setup is a critical constraint. The GPU's compute capabilities—7.680 TFLOPS of FP32 performance and a texture rate of 120.0 GTexel/s—are modest by discrete GPU standards.

The benchmark results place this GPU in the 9th percentile of all GPUs, which is a very low standing. Its nearest rivals in the database are NVIDIA GeForce GT 520MX, GeForce 800M, GT 625 OEM, and GT 710. The deltaPct values against these rivals are 1.3%, 1.5%, 2.5%, and 2.7% respectively, meaning the Arc B390 is only slightly faster than these ancient discrete parts. This contextualizes the Doom results: the GPU is performing at a level comparable to decade-old entry-level hardware.

The pixel rate of 60.00 GPixel/s and the FP32 throughput look reasonable on paper, but the system-shared memory cripples real-world performance. The measured FPS data shows that even at 1080p Low, the combo only manages 107 FPS, which is far below what a modern discrete GPU would deliver. The 4K Ultra result of 22 FPS is a clear indicator that the GPU is the primary constraint, as it cannot maintain playable frame rates regardless of CPU headroom.

CPU Role

The AMD Ryzen 5 4600G is a 7 nm Zen 2 (Renoir) processor with 6 cores and 12 threads. It has a base clock of 3.70 GHz and a boost clock of 4.20 GHz, with a 65 W TDP. The cache configuration includes 64 KB L1 per core, 512 KB L2 per core, and 8 MB of shared L3 cache. This is a capable mid-range CPU from 2020, and its benchmark scores reflect a solid processor.

In Cinebench R23, the CPU scores 13593 in multi-core and 1919 in single-core. Geekbench results show 6637 multi-core and 1460 single-core. The 3DMark 16-thread score is 4863, and the single-thread score is 726. These numbers place the CPU in the 71st percentile of all CPUs, which is respectable. Its nearest rivals include the AMD Ryzen 3 PRO 5355GE (deltaPct 0.1%), AMD Ryzen 3 8300GE (deltaPct -0.6%), Intel Core 7 150U (deltaPct 0.6%), and Intel Core i3-14100T (deltaPct -0.8%). The 4600G is essentially on par with these parts, trading fractions of a percent in average score.

For Doom, the CPU has more than enough processing power. The game is a 2016 title with a well-optimized id Tech 6 engine that scales well across multiple cores. At 1080p Low, the combo hits 107 FPS, which is likely near the CPU's practical limit for this game. However, the fact that FPS drops to 78 at High and 64 at Ultra at the same resolution suggests that the CPU is not the limiting factor; the GPU is.

The CPU's memory bandwidth of 51.2 GB/s is shared with the GPU, and this is where the combination hurts. The 4600G supports DDR4 memory, and the integrated GPU depends entirely on that memory bandwidth. At 4K, the GPU needs to access textures and frame buffers at a much higher rate, and the shared memory bus becomes a bottleneck. The CPU's 8 MB L3 cache is adequate for gaming, but it cannot compensate for the GPU's memory limitations.

Settings Recommendations

Based on the measured FPS rows, the best experience comes from the Low preset at 1080p, which delivers a 107 FPS average. This is the only configuration that approaches high refresh rate territory, and it is the only one that provides a consistently smooth experience. The Medium preset at 1080p gives 93 FPS average, with a min of 79 FPS and max of 107 FPS. This is also playable, and the visual upgrade over Low may be worth the 14 FPS average loss for some players.

At 1440p, the Low preset yields 69 FPS average, which is smooth enough for most players. The Medium preset at 1440p gives 60 FPS average, with a range of 51 to 69 FPS. This is borderline playable but may exhibit noticeable stutter in busy scenes. The High preset at 1440p drops to 51 FPS, which is on the edge of acceptable. The Ultra preset at 1440p produces 41 FPS, which is a poor experience.

At 4K, none of the presets are truly playable. The Low preset gives 37 FPS, Medium gives 33 FPS, High gives 28 FPS, and Ultra gives 22 FPS. Even the best 4K result is below the 30 FPS threshold that many consider the minimum for playability, though some may tolerate it for slower-paced segments. The data clearly shows that 4K should be avoided entirely with this combo.

The best balance of visual quality and performance is the Medium preset at 1080p. It provides a 93 FPS average with a min of 79 FPS, which keeps frame times consistent. The jump from Low to Medium adds meaningful visual fidelity without the steep performance penalty seen when moving to High or Ultra. The High preset at 1080p drops to 78 FPS, and Ultra drops to 64 FPS, so the Medium preset is the sweet spot.

How This Combo Ranks

The combo ranks 2580th out of 2930 tested combinations in Doom, placing it in the bottom 12% of all systems. This is a low ranking, but it is not the absolute worst. The ranking reflects the integrated GPU's limitations rather than the CPU's capabilities. The Ryzen 5 4600G is a competent processor, but it is paired with a GPU that performs in the 9th percentile of all GPUs.

The deltaPct values from the GPU's nearest rivals provide context. The Arc B390 is 1.3% faster than the GT 520MX, 1.5% faster than the GeForce 800M, 2.5% faster than the GT 625 OEM, and 2.7% faster than the GT 710. These are all extremely old, low-end discrete GPUs, and the Arc B390 barely edges them out. This means the combo's rank is largely determined by the GPU's position in the hierarchy.

The CPU's ranking is much better. The 4600G sits in the 71st percentile of all CPUs, and its nearest rivals are all within 0.8% of its average benchmark score. This suggests that if the GPU were swapped for a more powerful part, the combo's rank in Doom would improve dramatically. The CPU is not holding back the system; it is the GPU that drags the ranking down.

Measured FPS Breakdown

At 1920x1080, the combo delivers the following average FPS by settings:

• Low: 107 FPS
• Medium: 93 FPS (min 79, max 107)
• High: 78 FPS
• Ultra: 64 FPS

At 2560x1440, the results are:

• Low: 69 FPS
• Medium: 60 FPS (min 51, max 69)
• High: 51 FPS
• Ultra: 41 FPS

At 3840x2160, the results are:

• Low: 37 FPS
• Medium: 33 FPS (min 28, max 37)
• High: 28 FPS
• Ultra: 22 FPS

The Medium preset at each resolution has the most complete data, showing the min and max FPS ranges. At 1080p Medium, the range is 79 to 107 FPS, which indicates some variability but generally stable performance. At 1440p Medium, the range narrows to 51 to 69 FPS, showing more consistency but at a lower level. At 4K Medium, the range is 28 to 37 FPS, which is a tight band but at an unplayable level.

The scaling from 1080p to 1440p at Low settings is a 38 FPS drop, from 107 to 69. The scaling from 1440p to 4K at Low is a 32 FPS drop, from 69 to 37. The percentage losses are 35.5% and 46.4% respectively, showing that the GPU's performance degrades non-linearly as resolution increases. The same pattern holds for all settings, confirming that the GPU is the sole limiting factor.

The data shows that this combo is best suited for 1080p gaming with Low to Medium settings. Pushing to 1440p requires dropping to Low for a playable experience, and 4K is out of reach entirely. The CPU has headroom to spare, but the integrated GPU's shared memory and modest compute capabilities cap the overall performance.