Doom

The AMD Ryzen 5 5600 and AMD Radeon RX 6600 combination delivers a thoroughly playable Doom experience across most settings, but the data reveals a clear performance ceiling tied to the graphics card. At 1080p, this combo is exceptionally strong, while 4K Ultra demands more than the GPU can provide. The benchmark results show a system well-balanced for high-refresh-rate 1080p gaming, with diminishing returns as resolution increases.

Resolution Scaling

The FPS drop from 1080p to 4K is steep and consistent, indicating the Radeon RX 6600 is the primary limiting factor at higher resolutions. At High settings, average FPS falls from 126.9 at 1920x1080 to 86.2 at 2560x1440, a reduction of 40.7 FPS, and then further down to 47.7 at 3840x2160. This represents a 62.4% performance loss from 1080p to 4K, a classic sign of a GPU-bound workload where pixel count outpaces the rendering capabilities of the 8 GB frame buffer.

The scaling pattern across settings tells a similar story. At Low settings, the combo achieves 175 FPS at 1080p, but this drops to 111.7 at 1440p and 62.4 at 4K. The delta between Low and Ultra settings widens dramatically at higher resolutions. At 1080p, the gap between Low (175 FPS) and Ultra (106.7 FPS) is 68.3 FPS. At 4K, that same gap shrinks to 26.3 FPS, with Ultra managing only 36.1 FPS. This compression suggests that at 4K, the GPU is so saturated that even lowering settings cannot fully compensate for the raw pixel throughput required.

Analyzing the scaling factor, moving from 1440p to 4K at Medium settings yields a drop from 99.5 FPS to 56.1 FPS, a 43.4% reduction. This is a larger percentage loss than the 1080p-to-1440p transition, which drops from 153.4 to 99.5 FPS (35.1% loss). The non-linear scaling confirms that the RX 6600's memory bandwidth of 224.0 GB/s and 128-bit bus become increasingly strained as resolution climbs. The data strongly suggests that for 1440p and above, the GPU is the bottleneck, while at 1080p, the Ryzen 5 5600 can adequately feed the graphics card.

GPU Role

The AMD Radeon RX 6600 is the decisive component in this combo's performance profile. With 8 GB of GDDR6 memory on a 128-bit bus and 224.0 GB/s bandwidth, the card is positioned for 1080p gaming. The benchmark data supports this: the card only exceeds 100 FPS at 1080p across all settings except Ultra, which hits 106.7 FPS. At 1440p, the card falls below 100 FPS for High (86.2), Medium (99.5), and Ultra (71.1) presets, with only Low achieving 111.7 FPS.

The GPU's clock behavior is also telling. The boost clock is rated at 2491 MHz, with a game clock of 2044 MHz and base clock of 1626 MHz. The measured FPS data implies that the card sustains high clocks at lower resolutions but likely throttles or hits power limits at 4K. The 132 W TDP and dual-slot design suggest a card built for efficiency, not raw 4K throughput. The pixel rate of 159.4 GPixel/s and texture rate of 279.0 GTexel/s are sufficient for 1080p but fall short when filling 3840x2160 pixels.

Comparing to its nearest rivals, the RX 6600's average benchmark score of 25235 puts it effectively tied with the AMD Radeon 890M (25246, deltaPct 0) and just 0.2% behind the AMD Radeon RX 580 2048SP (25287). It is 0.5% ahead of the NVIDIA GeForce RTX 3060 Ti (25120). These near-identical scores indicate that despite architectural differences, the RX 6600 delivers comparable raw compute performance to these alternatives, reinforcing that the 8 GB memory pool and bus width are the differentiators in Doom's high-resolution settings.

How This Combo Ranks

In the database of tested combinations, this pairing of Ryzen 5 5600 and RX 6600 ranks 1336 out of 1681 combos for Doom. This places it in the lower-middle tier of all tested configurations, which is expected given the GPU's 1080p focus. The rank reflects that while the CPU is highly capable, the GPU holds back overall performance in this title. The combo's percentile of 79 for the CPU and 69 for the GPU individually suggests the processor outperforms the graphics card relative to their respective pools, but the combined result is constrained by the weaker link.

The rank of 1336 out of 1681 means approximately 79.5% of tested combos perform better in Doom. This is not a criticism of the hardware's suitability for the game, but rather an acknowledgment that the RX 6600 is outclassed by many higher-tier GPUs in the database. However, the measured FPS data shows that this combo still delivers smooth gameplay at 1080p and even playable 1440p, which is more relevant than the raw rank. The combo's position is largely determined by the GPU's 8 GB memory and 128-bit interface, which limit 4K performance to an average of 36.1 FPS on Ultra.

FAQ

Q: Can this combo run Doom at 4K?

A: Yes, but with significant compromises. At 4K Low settings, the average FPS is 62.4, which is playable. At 4K Medium, it drops to 56.1, and at 4K High, it falls to 47.7. The 4K Ultra preset is not viable, averaging only 36.1 FPS.

Q: What is the best resolution for this hardware?

A: The data clearly favors 1920x1080, where all settings achieve at least 106.7 FPS. For high refresh rate monitors, 1080p Low (175 FPS) or Medium (153.4 FPS) is ideal. At 1440p, only Low settings (111.7 FPS) break the 100 FPS threshold.

Q: How does the RX 6600 compare to the RTX 3060 Ti in this context?

A: Based on average benchmark scores, the RX 6600 (25235) is 0.5% ahead of the RTX 3060 Ti (25120). This negligible difference suggests similar rasterization performance, though other factors like memory size may affect specific game settings.

Q: Is the Ryzen 5 5600 holding back the GPU?

A: At lower resolutions, the CPU's 6 cores and 12 threads are sufficient. The CPU's percentile rank of 79 versus the GPU's 69 indicates the processor is relatively stronger. The FPS drops at higher resolutions are primarily due to GPU limitations, not CPU bottlenecks.

Q: What settings provide the best balance of quality and performance?

A: At 1080p, High settings (126.9 FPS) provide a strong balance. At 1440p, Medium (99.5 FPS) is the sweet spot, offering near-100 FPS without sacrificing too much visual fidelity. For 4K, Low (62.4 FPS) is the only reasonable option.

Q: Does the 8 GB VRAM limit performance in Doom?

A: The 8 GB memory size, combined with 224.0 GB/s bandwidth, is clearly a constraint at 4K. The steep FPS drop from 1440p to 4K, even at Low settings (111.7 to 62.4 FPS), indicates memory bandwidth saturation rather than raw compute limits.

CPU Role

The AMD Ryzen 5 5600 provides a solid foundation for Doom, but its influence on the measured FPS is secondary to the GPU. With 6 cores and 12 threads based on Zen 3 architecture, the CPU's boost clock of 4.40 GHz and 32 MB of shared L3 cache ensure it can handle game logic and draw calls without becoming a bottleneck at 1080p. The CPU's average benchmark score of 21765 places it in the 79th percentile of all CPUs, and it is within 0.9% of the Intel Core i7-11700F (21957) and 0.6% of the Intel Xeon D-1746TER (21635).

The CPU's single-thread performance, as measured by Cinebench R23 single-core score of 2584, is critical for Doom's engine, which relies heavily on a few threads for physics and AI. The multicore score of 18309 in Cinebench R23 demonstrates the CPU can handle background tasks without impacting frame pacing. However, the measured FPS deltas between 1080p and 1440p (e.g., High settings dropping from 126.9 to 86.2) are far larger than what CPU limitations would cause, confirming the GPU is the limiting factor.

At 1080p Low, the combo reaches 175 FPS, which is likely near the CPU's maximum frame delivery capability for this game. The fact that Ultra at 1080p (106.7 FPS) is still above 100 FPS suggests the CPU has headroom, but the GPU cannot translate that into higher frame rates at higher resolutions. The Ryzen 5 5600's memory support of DDR4 with 51.2 GB/s bandwidth is adequate for this workload, and the PCIe Gen 4 interface (20 lanes) provides sufficient bandwidth for the RX 6600's PCIe 4.0 x8 connection.

Settings Recommendations

The measured data provides a clear hierarchy for optimal settings. At 1920x1080, the High preset (126.9 FPS) is the recommended choice, as it delivers frame rates well above the 60 FPS threshold while maintaining visual quality. For competitive play, Low (175 FPS) or Medium (153.4 FPS) offer significant headroom for high refresh rate displays. The Ultra preset (106.7 FPS) is playable but offers diminishing returns over High for a 20.2 FPS loss.

At 2560x1440, the Medium preset (99.5 FPS) is the best balance, providing near-100 FPS performance. High (86.2 FPS) is acceptable for slower-paced play, while Low (111.7 FPS) is preferred for competitive integrity. The Ultra preset (71.1 FPS) is playable but drops below the 75 FPS threshold that some users prefer for smoother motion.

At 3840x2160, the Low preset (62.4 FPS) is the only recommendation, as it barely maintains 60 FPS. Medium (56.1 FPS) and High (47.7 FPS) are playable but with noticeable stutter, while Ultra (36.1 FPS) is not recommended. Users prioritizing 4K should accept Low settings or reduce resolution to 1440p for a better experience.

Measured FPS Breakdown

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

At 1920x1080, the combo achieves 175 FPS on Low, 153.4 FPS on Medium, 126.9 FPS on High, and 106.7 FPS on Ultra. The spread of 68.3 FPS between Low and Ultra demonstrates the GPU's scaling capability at this resolution, where the 8 GB memory and 224.0 GB/s bandwidth are sufficient.

At 2560x1440, results are 111.7 FPS (Low), 99.5 FPS (Medium), 86.2 FPS (High), and 71.1 FPS (Ultra). The 40.6 FPS spread between Low and Ultra is narrower than at 1080p, indicating the GPU is beginning to hit bandwidth limits.

At 3840x2160, the results are 62.4 FPS (Low), 56.1 FPS (Medium), 47.7 FPS (High), and 36.1 FPS (Ultra). The 26.3 FPS spread between Low and Ultra is the smallest, confirming that the GPU is heavily constrained at this resolution. The 1080p Low to 4K Low drop from 175 to 62.4 FPS represents a 64.3% performance loss, highlighting the resolution's impact on this mid-range GPU.