Doom

Resolution Scaling

The measured FPS data for Doom with the AMD Ryzen 7 5700X and NVIDIA GeForce RTX 3080 Ti reveals a clear pattern of scaling as resolution increases. At 1920x1080 with High settings, the system produces 233.5 FPS. Moving to 2560x1440 at the same settings yields 148.2 FPS, which is a 36.5% drop. At 3840x2160, the average falls to 80.7 FPS, another 45.5% reduction from the 1440p figure. This steep decline indicates that the rendering load is scaling aggressively with pixel count.

The gap between Low and Ultra settings widens at higher resolutions. At 1080p, the difference between Low (315.8 FPS) and Ultra (185.4 FPS) is 130.4 FPS. At 1440p, that spread compresses to 77.5 FPS (200.4 versus 122.9). At 4K, the spread narrows further to 40.9 FPS (107.5 versus 66.6). This converging behavior suggests that at 4K, the GPU is becoming the primary limiting component, as even dropping settings cannot fully compensate for the massive pixel throughput demand.

The data shows that 1080p performance is heavily constrained by other factors, likely the CPU's frame delivery ceiling. With Low settings producing 315.8 FPS at 1080p, the transition to 1440p Low drops to 200.4 FPS, a 36.5% reduction. But the jump from 1440p Low to 4K Low results in 107.5 FPS, a 46.4% drop. The proportional scaling is not linear, which is typical of a system where the GPU load increases geometrically with resolution while the CPU overhead remains relatively constant.

Ultra settings at 4K produce 66.6 FPS, which is above the 60 FPS threshold but not by a wide margin. The benchmark results indicate that 4K Ultra is the most demanding configuration tested, and the system handles it with a modest buffer. In contrast, 4K High at 80.7 FPS offers a more comfortable margin, while 4K Medium at 98 FPS provides substantial headroom.

GPU Role

The NVIDIA GeForce RTX 3080 Ti is the dominant component in this configuration. Its 12 GB of GDDR6X memory operates across a 384-bit bus, delivering 912.4 GB/s of bandwidth. This memory subsystem is critical for Doom's texture streaming and high-resolution rendering workloads. The GA102 chip contains 10,240 shading units, 320 texture mapping units, and 112 ROPs, which collectively drive the pixel and texture rates of 186.5 GPixel/s and 532.8 GTexel/s respectively.

Clock speeds for this GPU are specified at 1365 MHz base and 1665 MHz boost. The FP32 compute throughput is 34.10 TFLOPS, which indicates substantial raw processing capability. In the context of Doom, which is a fast-paced FPS that benefits from high frame rates, these specifications translate directly to the measured results. The RTX 3080 Ti's nearest rival by average benchmark score is the NVIDIA GeForce RTX 3090, which scores 41441 against the 3080 Ti's 41224, a delta of -0.5%. This near-parity in synthetic benchmarks is reflected in the gaming results, where the 3080 Ti demonstrates strong performance.

The GPU's 80 RT cores and 320 tensor cores are present but not heavily utilized in Doom, which is primarily a rasterization-focused title. The 8 nm Samsung process packs 28,300 million transistors into a 628 mm² die, giving a transistor density of 45.1M per mm². The 350 W TDP and dual-slot cooler suggest this is a power-hungry part, though such details are secondary to the performance analysis.

The passmark G3D score of 26896 places this GPU in the 83rd percentile among all GPUs. Its average benchmark score of 41224 is within 1.6% of the NVIDIA Tesla M40's 41897, though that comparison is synthetic. In gaming terms, the RTX 3080 Ti's 12 GB VRAM capacity is sufficient for the highest settings at 4K, as evidenced by the sustained frame rates in the measured data.

FAQ

Q: What is the best resolution for achieving 144 FPS or higher with this system?

A: At 2560x1440 with Low settings, the system produces 200.4 FPS. At 1920x1080 with Medium settings, it reaches 270.5 FPS. Both configurations comfortably exceed 144 FPS, with the 1080p Medium preset offering a good balance of visual quality and performance.

Q: How does the RTX 3080 Ti compare to its closest rival in synthetic benchmarks?

A: The RTX 3080 Ti has an average benchmark score of 41224, which is 0.5% lower than the NVIDIA GeForce RTX 3090's 41441. It is also 0.9% lower than the AMD Radeon Pro 5300's 41610 and 1.1% lower than the NVIDIA GeForce RTX 5070's 41687.

Q: Can this system run Doom at 4K with playable frame rates?

A: Yes. At 3840x2160 with High settings, the average FPS is 80.7. Even at Ultra settings, the system maintains 66.6 FPS, which is above the typical 60 FPS playability threshold.

Q: What is the performance difference between Low and Ultra settings at 1080p?

A: At 1920x1080, Low settings produce 315.8 FPS while Ultra settings produce 185.4 FPS. This represents a 130.4 FPS difference, meaning Ultra delivers approximately 41.3% lower frame rates than Low.

Q: How does the CPU's multi-threaded performance compare to its rivals?

A: The AMD Ryzen 7 5700X has an average benchmark score of 26214, which is 0.1% higher than the Intel Core i9-11900KF's 26196 and 0.2% higher than the AMD Ryzen 5 5500GT's 26161. It is 0.2% lower than both the AMD Ryzen 7 PRO 6850U's 26262 and the AMD Ryzen 5 7600X's 26272.

Q: What is the frame rate progression from 1080p to 4K at High settings?

A: At High settings, the system delivers 233.5 FPS at 1920x1080, 148.2 FPS at 2560x1440, and 80.7 FPS at 3840x2160. Each resolution step roughly halves the frame rate, consistent with the quadrupling of pixel count.

Measured FPS Breakdown

The measured data provides a comprehensive matrix of performance across three resolutions and four quality presets. At 1920x1080, the frame rates are exceptionally high across all settings. Low produces 315.8 FPS, Medium reaches 270.5 FPS, High delivers 233.5 FPS, and Ultra drops to 185.4 FPS. The 1080p results demonstrate that this resolution is well within the capability of the RTX 3080 Ti, even with the most demanding settings.

Moving to 2560x1440, the performance remains strong but shows the expected reduction. Low settings yield 200.4 FPS, Medium produces 178.1 FPS, High achieves 148.2 FPS, and Ultra falls to 122.9 FPS. The 1440p results indicate that High and Ultra presets still maintain frame rates above 120 FPS, which is suitable for high-refresh-rate displays.

At 3840x2160, the system's performance is more constrained. Low settings produce 107.5 FPS, Medium reaches 98 FPS, High delivers 80.7 FPS, and Ultra drops to 66.6 FPS. The 4K results show that the GPU is the limiting factor at this resolution, as the gap between presets narrows and even Low settings cannot exceed 107.5 FPS.

The data also reveals the performance cost of each preset tier. At 1080p, moving from Low to Medium costs 45.3 FPS, from Medium to High costs 37 FPS, and from High to Ultra costs 48.1 FPS. At 1440p, the corresponding costs are 22.3 FPS, 29.9 FPS, and 25.3 FPS. At 4K, the costs are 9.5 FPS, 17.3 FPS, and 14.1 FPS. This pattern shows that the absolute cost of higher settings decreases as resolution increases, but the relative impact becomes more significant.

Settings Recommendations

The benchmark data supports a clear recommendation hierarchy based on resolution. At 1920x1080, the Ultra preset at 185.4 FPS is the optimal choice, as it delivers the highest visual quality while still maintaining frame rates far above any display refresh rate. The performance headroom at 1080p is substantial, with even Ultra leaving 41.3% of the Low preset's performance untapped.

For 2560x1440, the Ultra preset at 122.9 FPS remains viable for 120 Hz displays, but the High preset at 148.2 FPS offers a better balance for 144 Hz monitors. The data shows that the 25.3 FPS difference between High and Ultra is the smallest preset gap at this resolution, suggesting that Ultra's visual enhancements come at a relatively low cost. However, for competitive play where higher frame rates are paramount, the Medium preset at 178.1 FPS provides a significant advantage.

At 3840x2160, the Medium preset at 98 FPS is the recommended choice for most users. It offers a 17.3 FPS improvement over High and a 31.4 FPS improvement over Ultra, while still delivering a quality level that is substantially better than Low. The High preset at 80.7 FPS is acceptable for users who prioritize visual fidelity over frame rate, but the Medium preset provides the best combination of smoothness and quality. The Ultra preset at 66.6 FPS is playable but leaves little margin for demanding scenes, making it a less advisable choice.

The data suggests that the system is most balanced at 1440p High, where the 148.2 FPS result represents a strong middle ground. Users with 4K displays should favor Medium settings to maintain frame rates above 90 FPS, while 1080p users can maximize settings without concern.

CPU Role

The AMD Ryzen 7 5700X provides the processing foundation for this system. With 8 cores and 16 threads, it offers substantial parallelism for game logic and rendering commands. The Zen 3 architecture, codenamed Vermeer, is built on a 7 nm process from TSMC, containing 4,150 million transistors on a 74 mm² die. The base clock of 3.40 GHz boosts to 4.60 GHz, providing strong single-threaded performance that is crucial for FPS games.

The CPU's cache hierarchy includes 64 KB of L1 per core, 512 KB of L2 per core, and a shared 32 MB L3 cache. This large L3 cache is beneficial for gaming workloads that frequently access shared data. The memory support for DDR4 in dual-channel configuration yields 51.2 GB/s of bandwidth, which is adequate for the CPU's needs in this context.

Synthetic benchmarks show the 5700X's strengths. The Cinebench R23 multicore score is 22620, while the single-core score is 3193. The Geekbench multicore score of 9720 and single-core score of 2148 further characterize its performance. The 3DMark 16-thread score of 6858 and 8-thread score of 5768 indicate strong scaling across cores. The PassMark multithread score of 26612 and single-thread score of 3385 round out the picture.

In Doom, the CPU's role becomes apparent at lower resolutions. The 1080p Low preset at 315.8 FPS approaches the practical limit of what even a powerful CPU can feed to the GPU. At 1080p Ultra, the 185.4 FPS result suggests the GPU is still the bottleneck, but the gap between Low and Ultra indicates that the CPU is not fully saturated. The 5700X's percentile ranking of 83 among all CPUs, with an average benchmark score of 26214, places it in the upper tier of processors. Its nearest rivals are tightly clustered, with the Intel Core i9-11900KF within 0.1% and the AMD Ryzen 5 7600X within 0.2%, indicating that the 5700X is well-positioned for gaming workloads.