Doom

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

The Intel Core Ultra 7 270K Plus is a 24-core, 24-thread processor built on the Arrow Lake Refresh architecture, fabricated on a 3 nm process by TSMC. With a base clock of 3.70 GHz and a boost clock of 5.50 GHz, this chip sits in the 96th percentile of all CPUs benchmarked, indicating top-tier processing power. Its cache hierarchy includes 192 KB of L1 per core, 3 MB of L2 per core, and a shared 36 MB L3 pool. The processor supports DDR5 memory over a dual-channel bus, delivering 115.2 GB/s of bandwidth, and it carries an integrated Arc Xe-LPG Graphics 64EU unit, though discrete graphics handle the rendering here.

In the context of Doom, a fast-paced FPS released in 2016, the CPU's role is primarily to feed the GPU with draw calls and maintain high frame rates. The data shows that at 1080p with Low settings, the combo achieves 301 FPS average, which is a strong indicator that the CPU is not a bottleneck at lower resolutions where the GPU has less work per frame. The 24 threads and high boost clock of 5.50 GHz are more than sufficient for a game of this era, which was designed for much older hardware. The Cinebench R23 multi-core score of 44253 and single-core score of 2439 underscore the chip's capability to handle both heavily threaded workloads and the single-threaded tasks that older game engines often rely on. PassMark single-thread performance at 5068 further supports this, suggesting that the 270K Plus provides ample headroom for the game's logic and physics.

When comparing to its nearest rivals in average benchmark score, the Intel Xeon 6520P matches at a deltaPct of 0, while the AMD EPYC 4564P trails by 1.5%, the EPYC 9175F by 1.9%, and the EPYC 4565P by 2.1%. These deltas are small, but they place the 270K Plus in a competitive position among server and workstation-class chips, which is notable for a desktop processor. For Doom specifically, the CPU's performance is likely far above the threshold needed for smooth gameplay, as evidenced by the high FPS numbers even at Ultra settings where the GPU becomes the primary limiter.

The CPU's 125 W TDP and unlocked multiplier suggest it is designed for enthusiasts who may overclock, though the stock boost clock of 5.50 GHz already provides substantial performance. The processor's release date of 2026-03-10 places it as a recent addition, yet it is already producing measured results in this benchmark database. The integrated graphics are irrelevant for this gaming scenario, but the CPU's memory bandwidth of 115.2 GB/s ensures that data can flow quickly to the GPU, which is critical for maintaining high frame rates in a game like Doom that relies on rapid texture streaming.

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

The NVIDIA GeForce RTX 3080 is built on the Ampere architecture with the GA102 chip, fabricated on an 8 nm process by Samsung. It features 8704 shading units, 272 texture mapping units, and 96 raster output units, along with 68 ray tracing cores and 272 tensor cores. The GPU operates at a base clock of 1440 MHz and a boost clock of 1710 MHz, with memory clocked at 1188 MHz, translating to 19 Gbps effective. It is equipped with 10 GB of GDDR6X memory on a 320-bit bus, yielding a bandwidth of 760.3 GB/s. The card's pixel rate is 164.2 GPixel/s, texture rate is 465.1 GTexel/s, and it delivers 29.77 TFLOPS of FP32 performance.

In Doom, the RTX 3080 plays a dominant role, especially at higher resolutions and settings. The data shows that at 4K with Ultra settings, the average FPS drops to 63, which is exactly at the threshold for smooth 60 FPS gameplay, indicating the GPU is heavily taxed. At 1080p with Low settings, the GPU is less stressed, achieving 301 FPS, but this is likely limited by the game engine's frame rate cap or CPU performance. The 10 GB VRAM is sufficient for Doom, which was released in 2016 and does not require large texture pools, so memory capacity is not a limiting factor here. The GPU's bandwidth of 760.3 GB/s ensures that even at 4K, textures can be streamed quickly, as evidenced by the 78 FPS average at High settings.

The RTX 3080's percentile rank of 68 among all GPUs places it in the upper mid-range, with an average benchmark score of 23172. Its nearest rivals include the NVIDIA P106-100 (deltaPct -0.3), AMD Radeon Pro Vega 16 (-0.3), AMD Radeon RX 6600M (-0.4), and AMD Radeon R9 M290X (-0.4). These deltas are minimal, but the RTX 3080 is clearly a capable card for its generation, though it is now considered end-of-life. The GPU's DirectX 12 Ultimate support and Vulkan 1.4 compliance ensure compatibility with modern APIs, which Doom can utilize for efficient rendering. The 320 W TDP and suggested 700 W PSU indicate this is a power-hungry card, but that is not a concern for this analysis.

The RTX 3080's performance in Doom is strong across the board. At 1440p with Ultra settings, it achieves 117 FPS, which is well above the 60 FPS threshold, and at 4K with Medium settings, it hits 92 FPS. The GPU's role becomes more pronounced as resolution increases, with the FPS dropping from 301 at 1080p Low to 63 at 4K Ultra, a reduction of 238 FPS or roughly 79%. This demonstrates that the GPU is the primary bottleneck at higher resolutions, while at lower resolutions, the CPU and game engine may play a more significant role in limiting frame rates.

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

The measured FPS data reveals a clear scaling pattern across resolutions. At 1080p, the combo achieves 301 FPS on Low, 262 on Medium, 221 on High, and 181 on Ultra. Moving to 1440p, these numbers drop to 195 on Low, 170 on Medium, 143 on High, and 117 on Ultra. At 4K, the averages fall further to 105 on Low, 92 on Medium, 78 on High, and 63 on Ultra. The percentage drops from 1080p to 4K are substantial: Low settings see a reduction from 301 to 105 FPS, a 65% decrease; Medium drops from 262 to 92 FPS, a 65% decrease; High goes from 221 to 78 FPS, a 65% decrease; and Ultra falls from 181 to 63 FPS, a 65% decrease. These consistent percentages across settings indicate that the GPU is the limiting component at 4K, as the relative performance scales almost linearly with resolution.

The pattern is typical of a GPU-bound scenario. When resolution increases, the number of pixels to render quadruples from 1080p to 4K, and the GPU must work harder to fill each frame. The fact that the FPS drops by roughly the same proportion across all settings suggests that the CPU is not a bottleneck even at 1080p, where the GPU has less work. If the CPU were limiting, we would expect to see a plateau at lower resolutions, but the data shows FPS continues to rise as resolution decreases, indicating the GPU is always the primary driver of performance. At 1080p Low, the 301 FPS average may be close to the game's engine frame rate cap, but the CPU's high single-thread score of 5068 in PassMark suggests it can handle the game's demands without issue.

The transition from 1440p to 4K is particularly telling. At 1440p Ultra, the combo achieves 117 FPS, which is comfortable for high-refresh-rate monitors. At 4K Ultra, it drops to 63 FPS, just above the 60 FPS threshold. This 54 FPS drop, or 46%, from 1440p to 4K is expected given the pixel count increase. The data suggests that for this game, the RTX 3080 is well-suited for 1440p gaming at high settings, while 4K gaming requires compromises in settings to maintain playable frame rates. The 4K Medium setting at 92 FPS is a notable improvement over Ultra, showing that reducing settings can yield significant performance gains at higher resolutions.

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

Based on the measured FPS data, the optimal settings depend on the target resolution and desired frame rate. At 1080p, all settings deliver smooth gameplay, with even Ultra achieving 181 FPS, which is well above the 144 Hz refresh rate common on gaming monitors. For 1440p, the Ultra preset at 117 FPS is also excellent for high-refresh-rate displays, while High at 143 FPS nudges closer to 144 Hz. At 4K, the situation changes: Ultra drops to 63 FPS, which is suitable for 60 Hz displays but not for higher refresh rates. The Medium preset at 92 FPS provides a better balance, offering a 29 FPS improvement over Ultra with likely minimal visual differences in a fast-paced game like Doom.

For the best experience, the data suggests that at 1080p, players can freely use Ultra settings without sacrificing frame rates, as the 181 FPS average is far beyond what most displays can show. At 1440p, the High preset at 143 FPS is recommended for those with 144 Hz monitors, while Ultra at 117 FPS is still viable for 120 Hz displays. At 4K, the Medium preset at 92 FPS is the sweet spot, as it provides a smooth experience while avoiding the significant FPS drop to 63 on Ultra. The Low preset at 4K yields 105 FPS, but the visual quality loss is likely not worth the 13 FPS gain over Medium.

The measured min and max FPS values for Medium settings provide additional context. At 4K Medium, the min FPS is 78 and max is 106, with an average of 92. This shows that even at 4K, the frame rate stays above 60 FPS during demanding scenes, making it a reliable choice for consistent gameplay. At 1440p Medium, the min is 144 and max is 195, with an average of 170, indicating very stable performance. At 1080p Medium, the min is 223 and max is 301, with an average of 262, showing that the game runs extremely smoothly at this resolution. For players prioritizing frame rate stability, the Medium preset across all resolutions offers the best balance of performance and visual quality, as the min FPS values are all above 60 FPS.

How This Combo Ranks — use comboRankInGame vs other tested combos

The combo of Intel Core Ultra 7 270K Plus and NVIDIA GeForce RTX 3080 ranks 787 out of 2930 tested combinations in Doom. This places it in the top 26.9% of all combos, which is a solid performance given the game's age and the hardware's specifications. The rank indicates that while this setup is not at the absolute top tier, it is well above average, with 2143 other combos performing worse. The percentile ranking suggests that this combo can handle Doom at high settings across most resolutions, as evidenced by the measured FPS data.

The CPU's 96th percentile ranking among all CPUs and the GPU's 68th percentile ranking among all GPUs together produce a combo that is stronger than the GPU's individual ranking might suggest. This is because Doom is not particularly demanding by modern standards, and the CPU's high performance helps maintain high frame rates even when the GPU is stressed. The combo's rank of 787 out of 2930 is influenced by the GPU's age, as newer cards with higher performance will naturally rank higher. However, for a game released in 2016, this combo delivers excellent results, with 4K Ultra at 63 FPS being the only setting where the performance dips near the 60 FPS threshold.

Compared to other combos in the database, this setup's rank suggests it is competitive with systems featuring newer mid-range GPUs or older high-end cards. The fact that it achieves 301 FPS at 1080p Low indicates the CPU and GPU work well together, with no significant bottleneck. The rank also reflects the GPU's 10 GB VRAM, which is sufficient for this game but may limit performance in newer, more demanding titles. For Doom specifically, the combo's performance is strong, and the rank of 787 out of 2930 reflects the hardware's capability in this title.

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

The measured FPS data provides a detailed picture of performance across three resolutions and four settings presets. At 1920x1080, the combo achieves 301 FPS on Low, 262 FPS on Medium (with min 223 and max 301), 221 FPS on High, and 181 FPS on Ultra. These numbers indicate that at 1080p, the game runs extremely smoothly, with even the most demanding Ultra preset exceeding 180 FPS. The Medium preset's min FPS of 223 ensures that even in heavy combat scenes, the frame rate remains well above the refresh rate of most monitors.

At 2560x1440, the performance scales down as expected. Low settings deliver 195 FPS, Medium averages 170 FPS (min 144, max 195), High averages 143 FPS, and Ultra averages 117 FPS. The 1440p results show that this combo is well-suited for high-refresh-rate gaming, as even Ultra settings maintain a frame rate above 100 FPS. The Medium preset's min FPS of 144 is exactly at the refresh rate of common 144 Hz monitors, ensuring a tear-free experience when V-Sync is enabled.

At 3840x2160, the GPU becomes the primary bottleneck. Low settings yield 105 FPS, Medium averages 92 FPS (min 78, max 106), High averages 78 FPS, and Ultra averages 63 FPS. These 4K numbers show that the combo can handle 4K gaming, but with compromises. The Ultra preset at 63 FPS is just above the 60 FPS threshold, making it playable but not ideal for high-refresh-rate 4K displays. The Medium preset at 92 FPS provides a more comfortable margin, while Low at 105 FPS offers the best performance at this resolution. The min FPS values at 4K Medium (78) indicate that the game rarely drops below 60 FPS, even in demanding scenes.

Across all resolutions, the scaling from Low to Ultra is consistent, with each settings tier reducing the average FPS by a predictable amount. At 1080p, the drop from Low to Ultra is 120 FPS (301 to 181), at 1440p it is 78 FPS (195 to 117), and at 4K it is 42 FPS (105 to 63). This pattern demonstrates that the GPU's workload increases with settings, and at higher resolutions, the absolute FPS penalty for Ultra settings is smaller but the relative impact is similar. The data confirms that this combo delivers a playable experience at all tested settings and resolutions, with 4K Ultra being the only configuration that approaches the 60 FPS threshold.