Doom

The AMD Ryzen 9 9900X3D paired with the AMD Radeon RX 7600 delivers a clear picture of GPU-bound performance in Doom, with frame rates scaling predictably as resolution increases. The measured data shows a substantial drop from 1080p to 4K, firmly establishing the Radeon RX 7600 as the limiting component in this configuration.

Resolution Scaling

The FPS progression across resolutions reveals a classic GPU-bound scenario. At 1920x1080 with High settings, the combo produces 142 FPS average. Moving to 2560x1440 drops this to 92 FPS, a reduction of 50 FPS. At 3840x2160, the average falls further to 50 FPS. This scaling pattern—roughly halving frame rates from 1080p to 4K—indicates the render pipeline is saturated by the GPU's throughput capabilities rather than CPU limitations.

The Low settings preset amplifies this trend. At 1080p Low, the system achieves 193 FPS. At 1440p Low, it manages 125 FPS, and at 4K Low, it drops to 68 FPS. The delta between 1080p Low and 4K Low is 125 FPS, demonstrating how pixel count directly taxes the GPU's fill rate and memory bandwidth. The RX 7600's 128-bit memory bus and 288.0 GB/s bandwidth become increasingly stressed as resolution climbs.

Ultra settings tell a similar story with steeper declines. The 1080p Ultra average sits at 116 FPS, falling to 75 FPS at 1440p and 41 FPS at 4K. This 75 FPS spread from 1080p to 4K at Ultra is the largest among all presets, highlighting how the combination of high detail and high resolution compounds the GPU workload. The data suggests that 4K Ultra is beyond this GPU's comfort zone, while 1080p and 1440p remain playable across all settings.

FAQ

Q: What is the best resolution for this combo in Doom?

A: The measured data shows 1920x1080 delivers the highest frame rates across all settings, ranging from 116 FPS at Ultra to 193 FPS at Low. This is the only resolution where every preset exceeds 100 FPS on average.

Q: How does the RX 7600 compare to its nearest rivals?

A: The RX 7600's average benchmark score of 15171 places it near the NVIDIA GeForce RTX 3050 OEM, which scores 15199 with a -0.2% delta. The AMD Radeon 680M is 0.7% higher, while the AMD Radeon Pro 560X is 0.6% lower.

Q: Is the Ryzen 9 9900X3D strong enough for this game?

A: Yes. The CPU's 12 cores and 24 threads, combined with a boost clock of 5.50 GHz, provide ample headroom. Its PassMark multithread score of 56154 and single-thread score of 4646 indicate no bottleneck, as frame rates scale purely with resolution changes.

Q: What FPS can I expect at 1440p Medium?

A: The measured average is 109 FPS, with a minimum of 92 FPS and maximum of 125 FPS. This makes 1440p Medium a strong balance for smooth gameplay.

Q: Does the CPU hold back the GPU at 1080p?

A: No. At 1080p Low, the combo reaches 193 FPS, which suggests the CPU can feed the GPU well beyond typical display refresh rates. The 9900X3D's single-core performance, evidenced by a Geekbench single-core score of 3041, prevents any meaningful CPU limitation.

Q: How does this combo rank overall for Doom?

A: The combo ranks 1991 out of 2930 tested combinations, placing it in the lower-middle tier. This rank reflects the GPU's mid-range positioning rather than CPU weakness.

GPU Role

The AMD Radeon RX 7600 is the decisive factor in this combo's Doom performance. With 8 GB of GDDR6 memory on a 128-bit bus, the GPU delivers 288.0 GB/s of bandwidth. The memory operates at 2250 MHz, with an effective data rate of 18 Gbps. These specifications directly influence how the card handles the increasing resolution demands seen in the measured FPS data.

The GPU's clock behavior shows a base clock of 1720 MHz, a game clock of 2250 MHz, and a boost clock of 2655 MHz. The 2655 MHz boost ceiling provides the computational headroom needed for the 1080p results, where the card achieves 142 FPS at High settings. The 21.75 TFLOPS FP32 throughput and 339.8 GTexel/s texture rate support the game's fast-paced rendering requirements.

The RX 7600's 57th percentile ranking among all GPUs, with an average benchmark score of 15171, positions it as a mid-tier performer. Its nearest rivals—the RTX 3050 OEM, Radeon Pro 560X, and Radeon 680M—all score within 0.7% of the RX 7600, indicating tight competition in this performance band. For Doom specifically, the GPU's 64 ROPs and 128 TMUs handle the game's geometry and pixel shading workloads, though the 4K Ultra result of 41 FPS reveals the limits of this configuration.

The 8 GB VRAM capacity proves sufficient across all measured settings, as the game's texture demands do not exceed this allocation. However, the narrow 128-bit bus becomes a limiting factor at 4K, where the bandwidth requirement outpaces the 288.0 GB/s available. This explains the steep FPS drops when moving from 1440p to 4K across all presets.

Settings Recommendations

The measured data supports specific settings choices based on target performance thresholds. For 1080p gaming, the Ultra preset delivers 116 FPS average, which remains well above the 60 FPS standard. The High preset improves this to 142 FPS, while Medium reaches 168 FPS. All 1080p options provide smooth gameplay, so the choice depends on visual preference versus frame rate headroom.

At 1440p, the High preset produces 92 FPS, and Medium achieves 109 FPS. The Ultra preset drops to 75 FPS, which still offers playable performance but with less margin. For players prioritizing frame rate stability, Medium at 1440p provides the best compromise, with a minimum FPS of 92 matching the High preset's average.

The 4K results indicate that only Low and Medium settings are viable. The Low preset averages 68 FPS, while Medium averages 59 FPS with a minimum of 50 FPS. The High preset at 50 FPS and Ultra at 41 FPS fall below the 60 FPS threshold, making them less suitable for responsive gameplay. For 4K, the Medium preset offers the best balance of visual quality and playability, with the Low preset serving as a fallback for higher frame rates.

The data shows a consistent pattern: each settings tier improves FPS by roughly 20-30% over the next higher tier. This scaling indicates the GPU is the primary constraint, and reducing settings yields predictable performance gains.

How This Combo Ranks

The combo's ranking of 1991 out of 2930 tested combinations places it in the 32nd percentile of all tested systems for Doom. This position reflects the RX 7600's mid-range standing rather than any CPU deficiency. The 9900X3D's 91st percentile ranking among all CPUs, with an average benchmark score of 54762, demonstrates that the processor far exceeds the demands of this game.

The rank disparity between CPU and GPU highlights the bottleneck structure. The CPU's nearest rivals—the Intel Core Ultra 5 245KF, Intel Core Ultra 5 245K, Intel Xeon 6505P, and Intel Core i7-14700F—all score within 2.1% of the 9900X3D, confirming that the processor provides consistent high-level performance. In contrast, the GPU's nearest rivals cluster closely around its score, showing that the RX 7600 sits in a crowded mid-range segment.

For Doom specifically, the combo's rank suggests that many other configurations with stronger GPUs will outperform it, particularly at higher resolutions. The 4K results, ranging from 41 to 68 FPS, place this combo below systems with higher-tier graphics cards. However, the 1080p results, reaching up to 193 FPS, remain competitive with many higher-ranked configurations.

Measured FPS Breakdown

At 1920x1080, the combo produces 193 FPS on Low, 168 FPS on Medium, 142 FPS on High, and 116 FPS on Ultra. The Medium preset shows a minimum of 143 FPS and maximum of 193 FPS, indicating consistent performance without significant frame drops. The spread from Low to Ultra is 77 FPS, demonstrating the GPU's sensitivity to settings changes at this resolution.

At 2560x1440, the results are 125 FPS on Low, 109 FPS on Medium, 92 FPS on High, and 75 FPS on Ultra. The Medium preset records a minimum of 92 FPS and maximum of 125 FPS. The 50 FPS gap between Low and Ultra at 1440p is narrower than at 1080p, reflecting the increased pixel workload limiting the impact of settings reductions.

At 3840x2160, the FPS figures are 68 on Low, 59 on Medium, 50 on High, and 41 on Ultra. The Medium preset's minimum of 50 FPS and maximum of 68 FPS show the tightest range across all resolutions, indicating the GPU is operating at its capacity limits. The 27 FPS difference between Low and Ultra at 4K is the smallest of any resolution, confirming that resolution, not settings, dominates the performance profile at 4K.

CPU Role

The AMD Ryzen 9 9900X3D plays a supporting role in this Doom configuration, providing more than enough computational power to keep the RX 7600 fully utilized. With 12 cores and 24 threads based on the Zen 5 architecture, the CPU operates at a base clock of 4.40 GHz and boosts to 5.50 GHz. This high boost clock, combined with a 128 MB L3 cache, ensures that game logic and draw calls are processed without introducing frame rate limitations.

The CPU's benchmark scores reinforce its capability. The Cinebench R23 multicore score of 47737 and single-core score of 6739 indicate strong performance across both multithreaded and lightly threaded workloads. The Geekbench multicore score of 22884 and single-core score of 3041 further confirm this. In Doom, which typically relies on a few heavily utilized threads, the 9900X3D's single-thread performance is particularly relevant.

The 3DMark results show a scaling pattern from 2 threads (2512) to 16 threads (12490) to max threads (13795), suggesting the CPU scales well with additional threads. However, the PassMark physics score of 5340 and single-thread score of 4646 indicate that even the most demanding game physics calculations are well within the CPU's capabilities.

The CPU's 91st percentile ranking among all CPUs, with an average benchmark score of 54762, places it firmly in the high-performance tier. Its nearest rivals all score within 2.1%, showing that the 9900X3D is competitive with other top-tier processors. For Doom, this means the CPU never becomes the limiting factor—the measured FPS differences across resolutions and settings are entirely attributable to the GPU's processing and memory bandwidth constraints.