Doom

The AMD Ryzen 5 2600 paired with the Intel Arc B390 produces a highly constrained gaming experience in Doom, with the measured frame rates revealing a system where the graphics solution is the overwhelming bottleneck. The data shows a combination that ranks in the 2580th position out of 2930 tested combos, placing it in the bottom 12% of all configurations, a position that aligns with the GPU's lowly 9th percentile standing among all tested graphics cards. The central question this data raises is whether the CPU's respectable multi-threaded capabilities can offset the GPU's severe limitations, and the resolution scaling analysis suggests it cannot.

Resolution Scaling

The measured FPS data across resolutions paints a clear picture of a GPU-bound system. Scaling from 1920x1080 to 2560x1440 and then to 3840x2160 at the High preset shows a dramatic performance decline: from 78 FPS at 1080p, the average drops to 51 FPS at 1440p, and then plummets to 28 FPS at 4K. This represents a 35% reduction in frame rate when moving from 1080p to 1440p, and a further 45% reduction when moving from 1440p to 4K. The severity of these drops, particularly the 4K collapse, is a classic indicator that the GPU is operating at its absolute limits, as pixel throughput demands increase exponentially with resolution.

At the Low preset, the scaling pattern is similar but slightly less punishing: 107 FPS at 1080p falls to 69 FPS at 1440p (a 36% drop) and then to 37 FPS at 4K (a 46% drop). The consistency of these percentage drops across presets is telling—even when the graphical load is reduced, the GPU remains the limiting factor, suggesting that the Arc B390's raw shading capabilities, rated at 7.680 TFLOPS FP32, are simply insufficient for high-resolution rendering in this title. The fact that 4K Low (37 FPS) barely exceeds 1440p High (51 FPS) by comparison to the CPU's headroom indicates that no amount of settings reduction can make 4K playable on this combination.

The resolution scaling data also hints at a potential CPU limitation at lower resolutions. The jump from 1440p High (51 FPS) to 1080p High (78 FPS) is substantial, but the 1080p Low result of 107 FPS suggests the CPU, with its 6 cores and 12 threads running at a 3.90 GHz boost clock, might begin to matter more at these lower resolutions. However, the data remains consistent with a GPU bottleneck, as the Ryzen 5 2600's PassMark single-thread score of 2239 is modest by modern standards, and the game's frame pacing at 107 FPS likely still leaves headroom on the CPU side.

How This Combo Ranks

The combo's rank of 2580 out of 2930 combinations places it in the bottom 12% of all tested pairings for Doom, which is a decisive indicator of its overall performance tier. This ranking is almost entirely attributable to the GPU, as the Intel Arc B390's average benchmark score of 1482 places it in the 9th percentile of all GPUs, while the Ryzen 5 2600 sits in the 75th percentile of all CPUs with an average score of 21484. The asymmetry between the two components is stark: the CPU is above average, the GPU is severely below average, and the combination results in a bottom-tier gaming experience.

Comparing the CPU's nearest rivals provides context for how much headroom might exist if the GPU were upgraded. The Ryzen 5 2600's average score of 21484 is nearly identical to the Intel Core Ultra 5 228V (21440, a 0.2% difference) and the Intel Core i9-11900H (21367, a 0.5% difference), while it slightly edges out the AMD EPYC 9454 (21223, a 1.2% advantage). These deltas are negligible in real-world terms, meaning the CPU's performance is well-established and not a source of variation in this combo's ranking. The GPU's nearest rivals, however, tell a different story: the Arc B390's 1482 score is only 1.3% ahead of the NVIDIA GeForce GT 520MX (1463), 1.5% ahead of the GeForce 800M (1460), and 2.7% ahead of the GeForce GT 710 (1443). These are all ancient, entry-level mobile or OEM parts, confirming that the Arc B390 is operating in a performance class that is fundamentally mismatched with a desktop CPU like the Ryzen 5 2600.

The rank of 2580 out of 2930 suggests that this combo is not merely below average but is in the bottom tier of configurations, and the data indicates that the GPU is the sole reason for this placement. If the CPU were paired with a more capable graphics card, the ranking would improve dramatically, as the CPU's 75th percentile standing shows it has the headroom to support far higher frame rates.

GPU Role

The Intel Arc B390 is the defining component of this combo, and its specifications reveal why the measured frame rates are so low. The GPU features 1536 shading units, 48 texture mapping units, and 24 raster output units, with a boost clock of 2500 MHz. These specs translate to a pixel rate of 60.00 GPixel/s and a texture rate of 120.0 GTexel/s, which are modest figures for a desktop gaming card. The FP32 performance of 7.680 TFLOPS places it in a performance class that is competitive with entry-level discrete GPUs from several generations ago, as evidenced by its nearest rivals.

The memory configuration is particularly problematic for gaming: the Arc B390 uses "System Shared" memory, meaning it has no dedicated VRAM and instead relies on the system's DDR4 memory. This is a fundamental limitation for a game like Doom, which benefits from fast, dedicated graphics memory. The memory bandwidth is listed as "System Dependent," which means it is constrained by the Ryzen 5 2600's dual-channel DDR4 configuration, rated at 46.9 GB/s. This shared memory arrangement severely limits the GPU's ability to feed its shading units with texture data, especially at higher resolutions where memory pressure increases. The 3DMark Steel Nomad DX12 score of 1482, while only a single benchmark, reinforces the GPU's low performance tier, and the 9th percentile ranking among all GPUs is a damning statistic.

The GPU's TDP of 80 W and IGP slot width indicate that this is not a high-performance part, and its release date of January 2026 suggests it is a modern but intentionally low-power solution. The data shows that the GPU's clock speeds, while high at 2500 MHz boost, cannot compensate for the limited shading units and shared memory architecture. In Doom, this results in the GPU being the primary constraint across all resolutions and settings, as the frame rates scale directly with the GPU's workload.

Measured FPS Breakdown

The measured FPS data provides a comprehensive view of the combo's performance across four resolutions and four settings presets. At 1920x1080, the results are as follows: Low averages 107 FPS, Medium averages 93 FPS (with a min of 79 and max of 107), High averages 78 FPS, and Ultra averages 64 FPS. These numbers show a clear progression, with the Low preset delivering a playable experience and Ultra still maintaining a playable frame rate, though the gap between Low and Ultra (43 FPS) indicates that the GPU has limited headroom for quality improvements at this resolution.

Moving to 2560x1440, the frame rates drop significantly: Low averages 69 FPS, Medium averages 60 FPS (min 51, max 69), High averages 51 FPS, and Ultra averages 41 FPS. The 1440p results are borderline playable, with Low and Medium delivering smooth experiences, but High and Ultra falling below the 60 FPS threshold that is often considered ideal for competitive FPS titles. The drop from 1080p to 1440p is consistent across settings, averaging around 35-36%, which reinforces the GPU-bound nature of the system.

At 3840x2160, the results are largely unplayable: Low averages 37 FPS, Medium averages 33 FPS (min 28, max 37), High averages 28 FPS, and Ultra averages 22 FPS. None of the 4K presets reach 40 FPS, and the Ultra preset at 22 FPS is a slideshow by any standard. The data suggests that 4K gaming is not a viable option for this combo, even at the lowest settings, as the GPU simply cannot handle the pixel count. The min/max FPS data for Medium at 4K (28-37 FPS) shows significant frame pacing inconsistency, which would be noticeable as stuttering during gameplay.

Across all resolutions, the pattern is consistent: the GPU is the limiting factor, and the settings presets provide a predictable scaling of performance. The Low preset at 1080p (107 FPS) is the only configuration that approaches high-refresh-rate territory, while everything else falls short of 100 FPS.

CPU Role

The AMD Ryzen 5 2600 is a 6-core, 12-thread processor based on the Zen+ architecture, manufactured on a 12 nm process by GlobalFoundries. It has a base clock of 3.40 GHz and a boost clock of 3.90 GHz, with a 65 W TDP. The CPU's cache hierarchy includes 96 KB of L1 per core, 512 KB of L2 per core, and 16 MB of shared L3 cache. These specifications are solid for a mid-range desktop processor from its era, and the benchmark data confirms this: the PassMark multithread score of 13160 and the Cinebench R15 multicore score of 1248 indicate strong multi-threaded performance.

In the context of Doom, the CPU's role is to feed the GPU with draw calls and handle game logic, and the data suggests it is more than capable of this task. The CPU's 75th percentile ranking among all CPUs, with an average score of 21484, places it comfortably above the median, and its nearest rivals show that it is competitive with modern processors like the Intel Core Ultra 5 228V and Intel Core i9-11900H. The single-thread performance, measured by a PassMark single-thread score of 2239, is adequate for gaming, and the 3.90 GHz boost clock ensures responsive gameplay.

However, the data shows that the CPU's potential is entirely untapped in this combo. The measured FPS at 1080p Low (107 FPS) is likely close to the CPU's limit in this game, but the GPU prevents the system from reaching higher frame rates. The CPU's 12 threads would be beneficial in Doom's more demanding scenes, but the GPU cannot keep up with even the CPU's moderate capabilities. The CPU's memory bandwidth of 46.9 GB/s, while not exceptional, is sufficient for this game, and the dual-channel DDR4 support is standard. The fact that the CPU has a launch MSRP of $199 and is still marked as "Active" production status indicates it remains a relevant budget option, but in this combo, it is wasted potential.

FAQ

*Q: Is this combo capable of 60 FPS gaming in Doom at any resolution?*

A: Yes, at 1920x1080, the Low preset averages 107 FPS, Medium averages 93 FPS, and High averages 78 FPS, all of which exceed 60 FPS. At 2560x1440, only the Low (69 FPS) and Medium (60 FPS) presets reach 60 FPS or above.

*Q: What is the best resolution for this combo in Doom?*

A: The data shows that 1920x1080 is the only resolution where all presets deliver playable frame rates, with Ultra averaging 64 FPS. At 2560x1440, the Ultra preset drops to 41 FPS, making it marginal.

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

A: The Arc B390's 3DMark Steel Nomad DX12 score of 1482 is 1.3% ahead of the NVIDIA GeForce GT 520MX (1463), 1.5% ahead of the GeForce 800M (1460), and 2.7% ahead of the GeForce GT 710 (1443), placing it in the 9th percentile of all GPUs.

Q: Is the Ryzen 5 2600 a bottleneck in this system?

A: The data does not indicate a CPU bottleneck. The CPU ranks in the 75th percentile of all CPUs, and its nearest rival, the Intel Core Ultra 5 228V, is only 0.2% different in average score. The GPU's 9th percentile ranking is the clear limiting factor.

Q: What frame rates can be expected at 4K with the Medium preset?

A: The measured data shows an average of 33 FPS at 3840x2160 with the Medium preset, with a minimum of 28 FPS and a maximum of 37 FPS, indicating inconsistent performance.

*Q: How does this combo rank compared to all tested combinations in Doom?*

A: It ranks 2580th out of 2930 tested combos, placing it in the bottom 12% of all configurations, consistent with the GPU's low performance tier.

Settings Recommendations

Based on the measured FPS data, the optimal settings for this combo depend on the user's performance priorities. For a smooth 60+ FPS experience, the 1920x1080 resolution with the High preset is the best balance, delivering an average of 78 FPS. The Medium preset at 1080p offers a higher 93 FPS average, but the visual difference between Medium and High in Doom is often noticeable, and the 15 FPS gain may not justify the quality reduction. The Low preset at 1080p (107 FPS) is only recommended for players targeting high refresh rates, as the visual quality degradation is significant.

At 2560x1440, the Medium preset is the only configuration that maintains a 60 FPS average, but it does so with a minimum of 51 FPS, which could result in noticeable drops during intense scenes. The Low preset at 1440p (69 FPS) is a safer choice for consistent performance, though it sacrifices visual fidelity. For players who prioritize image quality over frame rate, the 1080p Ultra preset (64 FPS) is acceptable, but the 1440p High preset (51 FPS) is not recommended due to the sub-60 FPS average.

The 4K resolution is not recommended under any settings, as even the Low preset (37 FPS) fails to provide a playable experience. The data shows that the GPU's shared memory architecture and limited shading units cannot handle 4K rendering in Doom, and users should avoid this resolution entirely. In summary, the best experience is achieved at 1080p with High settings, offering a 78 FPS average that balances visual quality and performance, with 1080p Medium as a viable alternative for higher frame rates.