Doom

The pairing of AMD’s Ryzen 5 2600 with NVIDIA’s GeForce RTX 3080 in Doom presents a study in contrast: a six-core Zen+ processor built for 2018 alongside a high-end Ampere GPU from 2020. The measured frame rates across resolutions and presets reveal a system that is clearly capable of strong performance, yet the scaling behavior suggests the CPU is the limiting factor at lower resolutions. This analysis examines the measured data to understand where the bottleneck lies and what it means for gameplay.

Resolution Scaling — how FPS drops from 1080p to 4K and what it says about the limiting component

The measured FPS data shows a classic pattern of diminishing returns as resolution increases. At 1080p with Low settings, the combo achieves 234.8 FPS. Moving to 1440p Low drops that to 193.4 FPS, a reduction of 41.4 FPS. At 4K Low, the average falls to 105.2 FPS, which is less than half of the 1080p figure. This steep decline at 4K indicates that the GPU is finally being pushed to its limits, whereas at 1080p, the rendering workload is light enough that the CPU becomes the primary constraint.

The gap between 1080p and 1440p is notably smaller than the gap between 1440p and 4K. For High settings, 1080p yields 210.6 FPS, while 1440p yields 143.9 FPS—a 66.7 FPS difference. From 1440p to 4K High, the drop is from 143.9 to 77 FPS, a 66.9 FPS difference. The similarity in these absolute drops suggests that the GPU is scaling predictably with pixel count, but the fact that 1080p High (210.6 FPS) is so close to 1080p Low (234.8 FPS) hints that the CPU is preventing the GPU from reaching even higher frame rates. If the GPU were fully utilized at 1080p, the difference between Low and High would likely be larger.

At 4K Ultra, the average FPS falls to 64.5, which is a 40.7 FPS drop from 4K High (77 FPS). This is a substantial penalty for the highest preset, indicating that the Ultra settings introduce effects that heavily tax the GPU’s resources. The data suggests that at 4K, the RTX 3080 is the clear bottleneck, as the CPU has less headroom to become a limiting factor when the GPU is working harder. Conversely, at 1080p, the high frame rates (183 FPS at Ultra) suggest the CPU’s 6 cores and 12 threads are working near their maximum output, capping performance before the GPU can fully stretch its legs.

GPU Role — VRAM, clocks, and how they relate to this game's results

The RTX 3080’s specifications directly inform its behavior in Doom. The GPU features 10 GB of GDDR6X memory with a 320-bit bus, providing 760.3 GB/s of bandwidth. This is ample for a 2016 title like Doom, which is not known for massive texture pools, so VRAM capacity is likely not a limiting factor even at 4K Ultra. The GPU’s boost clock of 1710 MHz, combined with 8704 shading units, delivers substantial raw throughput, which is reflected in the high frame rates at 1440p and 4K.

The GPU’s performance in this game aligns with its benchmark standing. It holds an 80th percentile rank among all GPUs, with an average benchmark score of 35787. Its nearest rival, the AMD Radeon Pro Duo, scores 35860 (a -0.2% delta), while the AMD Radeon RX 7900 GRE scores 36101 (a -0.9% delta). These margins are tiny, indicating that the RTX 3080 is competitive with these cards in synthetic tests. However, in Doom specifically, the measured FPS shows that the GPU is capable of delivering 143.9 FPS at 1440p High, which is a strong result.

The fact that the GPU’s memory clock is listed as 1188 MHz (19 Gbps effective) suggests that memory bandwidth is not a constraint in this title. The 4K High result of 77 FPS is respectable, but the jump to Ultra (64.5 FPS) shows that the GPU’s compute units are heavily loaded by the extra graphical effects. The data implies that the RTX 3080 is more than sufficient for 1440p gameplay, but at 4K, the user must make trade-offs between visual fidelity and frame rate, as the Ultra preset pushes the GPU to its limits.

FAQ — 4-6 Q&A pairs answerable from FACT PACK data

Q: What is the highest average FPS this combo achieves at 1080p?

A: The highest average FPS at 1080p is 234.8, achieved with Low settings. Medium settings yield 222.5 FPS, High yields 210.6 FPS, and Ultra yields 183 FPS.

Q: How does the combo perform at 4K Ultra compared to 4K Low?

A: At 4K Ultra, the average FPS is 64.5, while at 4K Low it is 105.2. This represents a 40.7 FPS difference, showing that the Ultra preset imposes a significant performance penalty at this resolution.

Q: Is the CPU or GPU more likely to be the bottleneck at 1440p?

A: At 1440p, the difference between Low (193.4 FPS) and High (143.9 FPS) is 49.5 FPS, which is substantial. This indicates the GPU is actively scaling with settings, but the CPU’s 6 cores and 12 threads may still cap the absolute maximum, as evidenced by the 1080p Low result of 234.8 FPS being only 41.4 FPS higher than 1440p Low.

Q: What is the combo’s rank among all tested combos in this game?

A: The combo ranks 616th out of 1681 tested combos in Doom. This places it in the upper portion of the distribution, though not at the very top.

Q: How does the RTX 3080’s benchmark score compare to its nearest rival?

A: The RTX 3080 has an average benchmark score of 35787. Its nearest rival, the AMD Radeon Pro Duo, scores 35860, which is a -0.2% delta. This means the Radeon Pro Duo is marginally ahead in synthetic tests.

Q: What is the FPS difference between 1080p High and 4K High?

A: At 1080p High, the average FPS is 210.6, while at 4K High it is 77. This is a difference of 133.6 FPS, highlighting the massive impact of resolution on the GPU’s workload.

Settings Recommendations — which preset gives the best experience per the measured rows

For a 1440p monitor, the High preset at 143.9 FPS offers an excellent balance between visual quality and smoothness. This frame rate is well above the 120 FPS threshold for fast-paced shooters, and the settings provide a noticeable improvement over Medium (168.5 FPS) without the heavy cost of Ultra (120.2 FPS). The data shows that the jump from High to Ultra at 1440p costs 23.7 FPS, which may not be worth the visual gain for competitive play.

At 1080p, the High preset (210.6 FPS) is the recommended choice, as it delivers nearly the same frame rate as Low (234.8 FPS) while offering better graphics. The difference between High and Medium (222.5 FPS) is only 11.9 FPS, so High is the sweet spot for maximizing visual fidelity without sacrificing performance. Ultra at 1080p (183 FPS) is still very playable, but the 27.6 FPS drop from High is a significant trade-off.

For 4K, the situation is more nuanced. The Low preset (105.2 FPS) is the only option that exceeds 100 FPS, making it the best for high refresh rate displays. Medium (92.3 FPS) and High (77 FPS) are both playable, but the Ultra preset (64.5 FPS) dips below 70 FPS, which may feel less responsive in a fast-paced FPS. Given the data, 4K High (77 FPS) offers the best compromise between image quality and playability, provided the user can tolerate frame rates below 100.

How This Combo Ranks — use comboRankInGame vs other tested combos

The combination of the Ryzen 5 2600 and RTX 3080 ranks 616th out of 1681 tested combos in Doom. This places it in the top 37% of all configurations, which is a respectable position given the CPU’s age. The rank reflects the balance between the GPU’s high-end capabilities and the CPU’s mid-range performance. In a game like Doom, which is well-optimized and can scale across many threads, the 6-core, 12-thread CPU is sufficient to avoid severe bottlenecks, but it does hold back the RTX 3080 from reaching its full potential at lower resolutions.

The rank of 616 suggests that while this combo is strong, there are many other configurations that achieve higher frame rates. These likely pair the RTX 3080 with newer, faster CPUs that can feed the GPU more effectively at 1080p and 1440p. The CPU’s benchmark data supports this: its average benchmark score is 19616, with a 77th percentile rank among all CPUs. Its nearest rival, the Intel Core i5-1345U, scores 19691 (-0.4% delta), while the AMD Ryzen 5 7530U scores 19508 (0.6% delta). These close scores indicate that the Ryzen 5 2600 is competitive with modern mobile and mid-range desktop chips in synthetic tests, but its single-thread performance (Cinebench R23 single-core score of 1579) may be limiting in games that rely heavily on single-threaded performance.

Measured FPS Breakdown — resolution by resolution, settings by settings, exact numbers

The measured FPS data provides a complete picture of performance across all settings. At 1920x1080, the combo achieves 234.8 FPS on Low, 222.5 FPS on Medium, 210.6 FPS on High, and 183 FPS on Ultra. The spread from Low to Ultra is 51.8 FPS, indicating that the settings have a moderate impact at this resolution. The 1080p results are consistently high, with even the Ultra preset exceeding 180 FPS.

Moving to 2560x1440, the averages drop to 193.4 FPS on Low, 168.5 FPS on Medium, 143.9 FPS on High, and 120.2 FPS on Ultra. The spread here is 73.2 FPS, showing that the settings have a larger relative impact at this resolution. The 1440p results are still excellent, with the lowest preset (Low) providing nearly 200 FPS and the highest preset (Ultra) staying above 120 FPS.

At 3840x2160, the performance becomes more demanding. The averages are 105.2 FPS on Low, 92.3 FPS on Medium, 77 FPS on High, and 64.5 FPS on Ultra. The spread is 40.7 FPS, which is smaller in absolute terms than at 1440p, but the percentage difference is larger. The 4K results show that the Ultra preset is the only one that falls below 70 FPS, making it the least desirable option for smooth gameplay. Overall, the data shows a clear hierarchy: 1080p is the most comfortable for high refresh rates, 1440p offers a great balance, and 4K requires careful settings selection.

CPU Role — cores, clocks, and how they relate to this game's results

The AMD Ryzen 5 2600 is a 6-core, 12-thread processor based on the Zen+ architecture, with a base clock of 3.40 GHz and a boost clock of 3.90 GHz. Its 16 MB of shared L3 cache and dual-channel DDR4 memory support (with 46.9 GB/s bandwidth) are adequate for gaming, but the architecture is now several generations old. In Doom, the CPU’s role is to feed the RTX 3080 with draw calls and physics calculations, and the measured FPS data suggests it does so competently but not flawlessly.

The CPU’s benchmark scores provide context for its gaming performance. Its Cinebench R23 multi-core score is 11186, and its single-core score is 1579. The Passmark multi-thread score is 13160, and the single-thread score is 2239. These scores indicate that the CPU is a solid mid-range performer, but it lacks the sheer single-thread strength of newer Intel or AMD chips. In a game like Doom, which is well-optimized for multi-threading, the 12 threads help maintain high frame rates, but the 1080p results (capped around 234 FPS) suggest that the CPU’s per-core performance is the limiting factor.

The CPU’s 77th percentile rank among all CPUs, with an average benchmark score of 19616, shows that it is still a capable processor, but it is not a top-tier part. Its nearest rivals, such as the Intel Core i5-1345U (19691, -0.4% delta) and the AMD Ryzen 5 7530U (19508, 0.6% delta), are comparable in synthetic benchmarks, yet they may have different gaming characteristics. The data implies that the Ryzen 5 2600 is the bottleneck in this combo at 1080p, as the GPU’s potential is not fully realized. At 4K, however, the GPU becomes the limiting factor, and the CPU’s influence diminishes, as shown by the 64.5 FPS result at Ultra, which is likely GPU-bound.