Doom

The AMD Ryzen 5 2600 paired with the NVIDIA GeForce RTX 5080 produces a fascinating benchmark profile in Doom (2016), where the data reveals a system that is overwhelmingly GPU-bound at higher resolutions but begins to show CPU limitations at 1080p. This combination of a 2018 mid-range processor with a 2025 flagship graphics card creates a measurable performance curve that shifts dramatically depending on the settings and resolution chosen.

Resolution Scaling

The measured FPS data shows a clear and predictable scaling pattern as resolution increases from 1920x1080 to 3840x2160. At Ultra settings, the average frame rate drops from 193.3 FPS at 1080p to 165.5 FPS at 1440p, and finally to 91.1 FPS at 4K. This represents a substantial 52.9% performance loss from the lowest to the highest resolution tested, indicating that the RTX 5080 is being pushed progressively harder as pixel count increases.

The scaling story becomes more nuanced when examining the Low settings preset. At 1080p Low, the system achieves 232.3 FPS, which drops to 205.4 FPS at 1440p, and then falls to 147.6 FPS at 4K. The percentage drop from 1080p to 4K at Low settings is approximately 36.5%, which is noticeably smaller than the 52.9% drop seen at Ultra. This divergence suggests that at lower settings, the CPU becomes a more significant limiting factor, preventing the GPU from fully stretching its legs even at 1080p.

The gap between the 1440p and 4K results at High settings is particularly instructive. At 1440p High, the system produces 179.6 FPS, while at 4K High it manages 109.9 FPS. The 63.4% reduction in frame rate when moving to 4K strongly indicates that the RTX 5080's rendering workload is the primary constraint at this resolution, with the Ryzen 5 2600 providing sufficient frame data to keep the GPU fed.

GPU Role

The NVIDIA GeForce RTX 5080 brings substantial rendering resources to this pairing, including 16 GB of GDDR7 memory on a 256-bit bus, delivering 960.0 GB/s of bandwidth. The GPU's boost clock of 2617 MHz and its 10752 shading units provide the raw compute power necessary to drive the high frame rates observed in the 4K benchmarks. The data shows that the GPU is able to maintain an average of 109.9 FPS at 4K High, which is a demanding workload that exercises both the memory subsystem and the shader array.

The VRAM allocation appears sufficient for this game, as Doom (2016) does not represent an extreme memory pressure scenario even at 4K. The 16 GB frame buffer is unlikely to be a bottleneck, allowing the GPU to focus on pixel throughput rather than memory swapping. The RTX 5080's architecture, built on the Blackwell 2.0 design with a 5 nm process node from TSMC, provides the efficiency needed to sustain high clock speeds without thermal throttling concerns in this dual-slot configuration.

Interestingly, the benchmark scores for the RTX 5080 place it in the 89th percentile among all GPUs, with an average benchmark score of 59188. Its nearest rivals include the Intel Arc A580, which sits 2.5% behind in average score, and the Intel Arc Pro A60, which is 1.9% ahead. This context helps explain why the GPU can deliver such strong 4K performance in Doom, as its raw compute capabilities far exceed what this older game title requires.

How This Combo Ranks

Within the benchmark database, this specific combination of the AMD Ryzen 5 2600 and NVIDIA GeForce RTX 5080 achieves a combo rank of 399 out of 1681 tested combinations in Doom. This places the pairing in the top 23.7% of all tested combos, which is a respectable showing given the age of the processor.

The ranking becomes more impressive when considering the CPU's relative position in the broader market. The Ryzen 5 2600 sits in the 77th percentile among all CPUs, with an average benchmark score of 19616. Its nearest CPU rivals are tightly clustered: the Intel Core i5-1345U is only 0.4% ahead, the AMD Ryzen 5 7530U trails by 0.6%, and the Intel Core i7-10700F sits 0.7% ahead. This tight grouping suggests that the CPU is performing at a level consistent with its expected capabilities, neither exceeding nor falling short of its peers.

The fact that this combo ranks 399th despite the GPU being in the 89th percentile and the CPU in the 77th percentile indicates that the pairing is well-balanced for this game. The rank suggests that many other combinations with newer CPUs achieve better results, likely because Doom's engine benefits from higher single-thread performance, which the Ryzen 5 2600's 3.90 GHz boost clock provides but not at the level of more modern processors.

FAQ

Q: Why does the 4K Ultra preset only achieve 91.1 FPS when the GPU is so powerful?

A: The RTX 5080's performance at 4K Ultra is limited by the sheer rendering workload, as the GPU's 10752 shading units must process four times the pixels of 1080p. The data shows a consistent drop from 193.3 FPS at 1080p Ultra to 91.1 FPS at 4K Ultra, which is a 52.9% reduction that reflects the exponential increase in pixel count.

Q: Is the Ryzen 5 2600 bottlenecking the RTX 5080 at 1080p?

A: The evidence suggests partial CPU limitation at lower resolutions. At 1080p Low, the system produces 232.3 FPS, while at 1440p Low it achieves 205.4 FPS. The relatively modest 11.6% drop between these resolutions, compared to the larger 28.2% drop from 1440p to 4K, indicates that the CPU is constraining performance more at 1080p than at higher resolutions.

Q: How does this combo compare to the RTX 5080's nearest GPU rivals in this game?

A: The benchmark data does not include direct comparisons with rival GPUs in Doom, but the RTX 5080's overall average score of 59188 places it 2.5% ahead of the Intel Arc A580 and 1.9% behind the Intel Arc Pro A60. These differences in synthetic benchmarks may not directly translate to game-specific performance.

Q: What memory bandwidth does the RTX 5080 provide for this game?

A: The RTX 5080 offers 960.0 GB/s of memory bandwidth through its 16 GB of GDDR7 memory on a 256-bit bus. This high bandwidth ensures that texture streaming and frame buffer operations in Doom are not constrained by memory throughput, even at 4K resolution.

Q: Does the CPU's 12 threads help in this game?

A: The Ryzen 5 2600 provides 6 cores and 12 threads, which is sufficient for Doom's multi-threaded rendering engine. The CPU's Cinebench R23 multi-core score of 11186 indicates solid multi-threaded capability, but the single-core score of 1579 is more relevant for frame pacing in this FPS title.

Q: Why does the 4K Low preset achieve 147.6 FPS, which is higher than 4K Ultra?

A: The 4K Low preset reduces the GPU's workload significantly, allowing the RTX 5080 to focus on raw pixel throughput rather than complex shading calculations. The 62% performance increase from Ultra to Low at 4K demonstrates that the GPU is the limiting factor at this resolution, with the CPU providing enough frame data to support the higher frame rate.

CPU Role

The AMD Ryzen 5 2600, with its 6 cores and 12 threads, operates at a base clock of 3.40 GHz and a boost clock of 3.90 GHz. This 2000-series processor, built on the 12 nm process node with the Zen architecture, provides a solid foundation for gaming but its age is apparent in the benchmark data. The CPU's Cinebench R20 multi-core score of 4698 and single-core score of 663 give context to its capabilities, with the single-core performance being particularly relevant for Doom's frame generation.

The CPU's memory bandwidth of 46.9 GB/s through dual-channel DDR4 support is modest by modern standards, but sufficient for this game's requirements. The 16 MB of shared L3 cache helps maintain data locality, reducing the need for frequent memory accesses. The processor's 65 W TDP indicates efficient operation, allowing it to maintain boost clocks without excessive thermal management overhead.

The benchmark data reveals that the CPU's influence on frame rates is most pronounced at 1080p Low, where the system achieves 232.3 FPS. The fact that this is only 13.2% higher than the 4K Low result of 147.6 FPS suggests that the CPU is nearing its frame generation limits at these high frame rates. The PassMark single-thread score of 2239 and multi-thread score of 13160 provide additional context, indicating that while the CPU can handle Doom's workload, it cannot fully saturate the RTX 5080's rendering pipeline at lower resolutions.

Settings Recommendations

The measured FPS data suggests that the High preset offers the best balance of visual quality and performance across all resolutions. At 1080p High, the system achieves 210 FPS, which is well above the 144 Hz refresh rate common on modern monitors. At 1440p High, the 179.6 FPS average still provides ample headroom for high-refresh-rate displays, while 4K High at 109.9 FPS remains playable on 60 Hz panels.

The Ultra preset, while offering maximum visual fidelity, shows diminishing returns at higher resolutions. At 1080p Ultra, the 193.3 FPS is only 8% lower than High settings, but at 4K Ultra, the 91.1 FPS represents a 17% drop from High. For users prioritizing frame rate consistency, the Medium preset at 4K provides a significant boost to 132.2 FPS, which is 45% higher than Ultra while likely maintaining most visual features.

The Low preset is only recommended for competitive play at 1080p, where the 232.3 FPS average provides maximum frame pacing. However, the marginal gain of 10.6% over High settings at 1080p suggests that the visual compromise is not worth the frame rate increase for most users.

Measured FPS Breakdown

At 1920x1080, the system delivers its highest frame rates across all settings. The Low preset achieves an average of 232.3 FPS, followed by Medium at 226 FPS, High at 210 FPS, and Ultra at 193.3 FPS. The spread from Low to Ultra is 39 FPS, representing a 16.8% performance range.

Moving to 2560x1440, the frame rates remain high but show increased separation between settings. Low produces 205.4 FPS, Medium achieves 191.4 FPS, High delivers 179.6 FPS, and Ultra manages 165.5 FPS. The gap between Low and Ultra expands to 39.9 FPS, or 19.4%, indicating that the GPU is becoming more of a limiting factor.

At 3840x2160, the performance hierarchy shifts more dramatically. Low settings yield 147.6 FPS, Medium drops to 132.2 FPS, High reaches 109.9 FPS, and Ultra falls to 91.1 FPS. The 56.5 FPS difference between Low and Ultra at 4K represents a 38.3% performance range, demonstrating the GPU's increasing workload at this resolution. The data shows that the Ultra preset at 4K is the only configuration tested that falls below the 100 FPS threshold, making High settings the recommended choice for 4K gaming with this hardware combination.