Doom

The AMD Ryzen 9 9950X3D and AMD Radeon RX 7800 XT pairing in Doom demonstrates a configuration where the GPU is the primary performance arbiter across all tested resolutions. The data set, derived from measured frame rates, shows a consistent scaling pattern from 1080p through 4K, with the CPU's substantial core and cache resources providing ample headroom for the graphics card to operate at its limits.

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

The AMD Ryzen 9 9950X3D is a 16-core, 32-thread processor based on the Zen 5 architecture, codenamed Granite Ridge, built on a 4 nm process at TSMC. It operates with a base clock of 4.30 GHz and a boost clock of 5.70 GHz, with a 170 W TDP. The processor features a substantial cache hierarchy: 80 KB of L1 per core, 1 MB of L2 per core, and a shared 128 MB of L3 cache. This large L3 pool is notable for gaming workloads, as it reduces latency when accessing frequently used data.

In Doom, a title from 2016 that scales well across multiple threads, the CPU's benchmark scores indicate far more compute capability than the game requires at the tested settings. The processor achieves a Cinebench R23 multicore score of 59712 and a single-core score of 8430. Its PassMark multithread score is 70255, with a single-thread score of 4737. These numbers place the CPU in the 96th percentile among all tested processors, meaning it outperforms the vast majority of alternatives.

The nearest rivals provide context for this performance. The AMD Ryzen 9 9950X scores 70420 on average, which is 1.8% lower than the 9950X3D's 71660 average benchmark score. The Intel Core i7-14700KF trails by 2.2% with a score of 70104. The Intel Xeon Platinum 8270 is marginally ahead at 71056, a delta of 0.9%, while the Intel Xeon 6517P leads by 1.9% with a score of 73050. These deltas are small, indicating that the 9950X3D sits in a tightly contested performance band.

For Doom specifically, the CPU's role is to feed the GPU with rendered frames without becoming a bottleneck. The data shows that even at 1080p with Low settings, where CPU overhead is most visible, the system achieves 279.7 FPS. This high frame rate suggests the processor is not limiting performance; the GPU's fill rate and shading capabilities are the determining factors. The 16 cores and 32 threads are far beyond what Doom's engine can utilize, but the high single-thread performance, evidenced by the Geekbench single-core score of 3401, ensures that the game's primary thread is handled efficiently.

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

The AMD Radeon RX 7800 XT is built on the RDNA 3.0 architecture with the Navi 32 chip, manufactured on a 5 nm process at TSMC. It features 16 GB of GDDR6 memory on a 256-bit bus, delivering a bandwidth of 624.1 GB/s. The GPU has a base clock of 1295 MHz and a boost clock of 2430 MHz, with a game clock of 2124 MHz. Its memory operates at 2438 MHz, effectively 19.5 Gbps. The card includes 3840 shading units, 240 texture mapping units, and 96 render output units, along with 60 ray tracing cores. Its theoretical performance is rated at 37.32 TFLOPS for FP32 operations.

The GPU's benchmark scores place it in the 76th percentile among all graphics cards, with an average benchmark score of 32619. Its nearest rivals show a tight cluster: the AMD FirePro S9300 X2 scores 32540 (0.2% lower), the NVIDIA P104-100 scores 32747 (0.4% higher), the NVIDIA T600 Mobile scores 32849 (0.7% higher), and the AMD FirePro S10000 scores 32388 (0.7% lower). These small deltas indicate the RX 7800 XT is positioned within a competitive mid-range segment.

In Doom, the GPU's 16 GB of VRAM is more than sufficient for the game's textures, even at 4K resolution. The memory bandwidth of 624.1 GB/s allows for fast texture streaming, which is relevant at higher resolutions where pixel throughput demands increase. The GPU's compute capabilities, reflected in its PassMark G3D score of 24176 and Geekbench Vulkan score of 143060, directly influence the frame rates observed. As settings increase from Low to Ultra, the GPU's workload rises, and the measured FPS drops accordingly, confirming that the graphics card is the limiting component in this configuration.

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

The measured FPS data reveals a clear pattern of performance degradation as resolution increases, which is characteristic of a GPU-bound scenario. At 1080p with Ultra settings, the system produces 168.2 FPS. Moving to 1440p Ultra drops this to 107.6 FPS, a reduction of 60.6 FPS. At 4K Ultra, the frame rate falls further to 59.9 FPS, which is a 35.9% decrease from the 1440p figure and a 64.4% decrease from the 1080p figure.

The scaling across all settings follows a similar trajectory. At High settings, the system achieves 207.9 FPS at 1080p, 134.5 FPS at 1440p, and 70.9 FPS at 4K. The 1440p to 4K drop is 63.6 FPS, while the 1080p to 4K drop is 137.0 FPS. At Medium settings, the figures are 243.7 FPS, 158.6 FPS, and 86.4 FPS respectively. The Low settings produce the highest frame rates: 279.7 FPS at 1080p, 183.6 FPS at 1440p, and 100.4 FPS at 4K.

These numbers indicate that the GPU is the limiting factor across the board. If the CPU were the bottleneck, we would expect to see frame rates plateau at lower resolutions, where CPU overhead becomes more significant. Instead, the FPS continues to rise as resolution decreases, reaching 279.7 FPS at 1080p Low. This suggests the CPU can push frames well beyond 280 FPS in Doom, but the GPU cannot render them fast enough. The 4K results, ranging from 59.9 FPS at Ultra to 100.4 FPS at Low, show that the RX 7800 XT's pixel throughput is the decisive constraint.

How This Combo Ranks — use comboRankInGame vs other tested combos

The combination of the AMD Ryzen 9 9950X3D and AMD Radeon RX 7800 XT ranks 635th out of 1681 tested combos in Doom. This places the pairing in the upper-middle tier of all configurations tested, meaning it outperforms roughly 62% of combinations while trailing the top performers. The rank reflects the GPU's mid-range position; the CPU's high percentile does not boost the combo further because Doom's frame rates are governed by the graphics card.

The combo rank of 635, when compared to the CPU's 96th percentile and the GPU's 76th percentile, indicates that the system's overall standing is dragged down by the GPU. A higher-performing GPU paired with this CPU would likely achieve a much better rank, as the CPU has demonstrated it can support frame rates well above what the RX 7800 XT delivers. Conversely, pairing the RX 7800 XT with a weaker CPU might not change the rank significantly in Doom, since the GPU remains the limiting factor. The data shows that this combo is balanced toward CPU over-provisioning, which is a reasonable configuration for games that are more demanding on the processor, though Doom does not fall into that category.

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

At 1920x1080, the system delivers its highest frame rates. Low settings produce 279.7 FPS, Medium settings produce 243.7 FPS, High settings produce 207.9 FPS, and Ultra settings produce 168.2 FPS. The gap between Low and Ultra is 111.5 FPS, indicating that settings have a substantial impact on performance at this resolution.

At 2560x1440, the frame rates remain high but show a clear step down. Low settings yield 183.6 FPS, Medium yields 158.6 FPS, High yields 134.5 FPS, and Ultra yields 107.6 FPS. The difference between Low and Ultra is 76.0 FPS, which is smaller in absolute terms than at 1080p but proportionally similar.

At 3840x2160, the system struggles to maintain high refresh rates. Low settings produce 100.4 FPS, Medium produces 86.4 FPS, High produces 70.9 FPS, and Ultra produces 59.9 FPS. The Low to Ultra gap narrows to 40.5 FPS, showing that at 4K, even the lowest settings cannot overcome the GPU's pixel throughput limits. The 4K Ultra result of 59.9 FPS is the only measured configuration that falls below 60 FPS, making it marginal for smooth gameplay on standard 60 Hz displays.

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

For a 1080p display, the Ultra preset at 168.2 FPS provides an excellent experience, as the frame rate is well above the 144 Hz refresh rate common on modern monitors. The High preset at 207.9 FPS offers a smoother experience on 240 Hz displays, while Medium at 243.7 FPS and Low at 279.7 FPS cater to competitive players seeking maximum frame rates. Given that the gap between Medium and Ultra is 75.5 FPS, the Medium preset delivers the best balance of visual fidelity and performance for most users.

At 1440p, the Ultra preset at 107.6 FPS is playable on 100 Hz or 120 Hz displays, but the High preset at 134.5 FPS provides more headroom for maintaining consistent frame times. The Medium preset at 158.6 FPS is a strong choice for 144 Hz monitors, offering a significant 51.0 FPS advantage over Ultra while still maintaining high visual quality. Low at 183.6 FPS is reserved for competitive scenarios where frame rate is prioritized over visuals.

At 4K, the Ultra preset at 59.9 FPS is borderline for smooth gameplay, as it hovers just below the 60 FPS threshold. The High preset at 70.9 FPS provides a more comfortable margin above 60 FPS, while Medium at 86.4 FPS and Low at 100.4 FPS offer progressively smoother experiences. For 4K gaming, the High preset at 70.9 FPS is the recommended choice, as it provides a solid frame rate without sacrificing too much visual detail. The Low preset at 100.4 FPS is a viable alternative for users with 100 Hz or 120 Hz 4K displays who prioritize frame rate over graphical fidelity.

Across all resolutions, the data indicates that the Medium preset offers the most consistent experience relative to the Ultra preset's visual gains. The FPS deltas between Medium and Ultra are 75.5 FPS at 1080p, 51.0 FPS at 1440p, and 26.5 FPS at 4K, suggesting that the visual improvements from Ultra are not worth the performance cost on this GPU.