Doom

The AMD Ryzen 7 9700X and AMD Radeon RX 6600 XT combination delivers a highly playable Doom experience across most settings, but the data reveals a clear performance ceiling dictated by the graphics card as resolution climbs. The measured frames per second (FPS) show a predictable pattern: performance scales inversely with resolution, with the GPU becoming the primary bottleneck at 4K, while the CPU’s strong single-thread capabilities keep 1080p performance exceptionally high.

Resolution Scaling

The FPS drop from 1080p to 4K is steep and consistent across all settings, indicating that the RX 6600 XT is the limiting component at higher resolutions. At Low settings, the average FPS falls from 194.4 at 1920x1080 to 123.3 at 2560x1440, then to 68.6 at 3840x2160. This represents a 36.6% reduction when moving from 1080p to 1440p, and a further 44.4% drop when going from 1440p to 4K. The trend is similar at High settings, where the average FPS goes from 142.7 at 1080p to 88.5 at 1440p, and finally to 48.4 at 4K.

The scaling pattern reveals that the GPU’s pixel throughput becomes the dominant constraint as resolution increases. At 1080p, the frame rates are high enough that the CPU’s performance headroom is evident — the Ryzen 7 9700X’s boost clock of 5.50 GHz and 8 cores help maintain high minimums even when the GPU is less stressed. However, at 4K, the RX 6600 XT’s 64 ROPs and 256.0 GB/s memory bandwidth are insufficient to keep pace with the pixel count, resulting in sub-60 FPS averages at High and Ultra settings. The data strongly suggests that users targeting 4K should expect to use Low or Medium presets, while 1440p and 1080p provide much more flexibility.

GPU Role

The AMD Radeon RX 6600 XT, built on the RDNA 2.0 architecture with the Navi 23 chip, has a boost clock of 2589 MHz and a game clock of 2359 MHz. Its 8 GB of GDDR6 memory on a 128-bit bus provides 256.0 GB/s of bandwidth, which is adequate for 1080p and 1440p gaming but becomes a limiting factor at 4K. The GPU’s 2048 shading units and 32 ray tracing cores deliver a FP32 performance of 10.60 TFLOPS, placing it in the 71st percentile of all GPUs according to benchmark data.

In Doom, the GPU’s role is most apparent in the resolution scaling results. At 1080p Low, the 194.4 FPS average shows the GPU is not the bottleneck, but at 4K Ultra, the 40.4 FPS average indicates the card is fully saturated. The GPU’s nearest rival, the NVIDIA GeForce GTX 980 Ti, has an average benchmark score of 27956, which is 0.1% lower than the RX 6600 XT’s 27985. This near-identical performance is reflected in the 4K results, where the card’s limitations are exposed. The 8 GB VRAM capacity is sufficient for Doom’s textures at all presets, but the memory bandwidth of 256.0 GB/s is the more critical constraint at higher resolutions.

FAQ

Q: What is the highest average FPS achievable with this combo at 1080p?

A: The highest average FPS is 194.4, achieved at 1920x1080 with Low settings.

Q: Can this system maintain 60 FPS at 4K?

A: Only at Low settings, where the average FPS is 68.6. At Medium, High, and Ultra settings, the averages are 56.7, 48.4, and 40.4 respectively, all below 60 FPS.

Q: How does the RX 6600 XT compare to its closest rival in raw compute?

A: The RX 6600 XT has an average benchmark score of 27985, which is 0.1% higher than the NVIDIA GeForce GTX 980 Ti’s 27956 score.

Q: What is the performance difference between 1080p and 1440p at High settings?

A: The average FPS drops from 142.7 at 1080p to 88.5 at 1440p, a reduction of 54.2 FPS or approximately 38%.

Q: Does the CPU bottleneck the GPU at any resolution?

A: At 1080p Low, the 194.4 FPS average suggests the GPU is the limiting factor, but the CPU’s single-thread score of 1280 in 3dMark indicates it has sufficient headroom to avoid becoming a bottleneck at any tested resolution.

Q: What is the combo’s rank among all tested configurations?

A: The combo ranks 1231 out of 1681 tested combinations, placing it in the lower portion of the benchmark database.

How This Combo Ranks

The AMD Ryzen 7 9700X and AMD Radeon RX 6600 XT combination ranks 1231 out of 1681 tested combos in Doom, placing it in the 73rd percentile of all configurations. This ranking reflects the GPU’s mid-range positioning, as the RX 6600 XT sits in the 71st percentile of all GPUs, while the CPU is stronger, ranking in the 89th percentile of all CPUs. The discrepancy between the CPU’s high percentile and the combo’s lower rank indicates that the GPU is the limiting factor for overall gaming performance in this title.

The CPU’s nearest rivals, such as the Intel Core i5-14500HX with an average score of 35940 (0.2% higher), and the AMD Ryzen 7 PRO 5845 with 35802 (0.6% lower), show that the Ryzen 7 9700X is competitively positioned in raw processing power. However, the GPU’s nearest rivals, including the NVIDIA GeForce RTX 3070 with a score of 28238 (0.9% higher), demonstrate that the RX 6600 XT is slightly below the top mid-range options. This combination results in a system that excels at 1080p and 1440p gaming but cannot compete with higher-tier GPU pairings at 4K.

Measured FPS Breakdown

At 1920x1080, the measured average FPS values are 194.4 for Low, 168.7 for Medium, 142.7 for High, and 112.6 for Ultra. These numbers show a smooth progression, with each preset tier reducing performance by approximately 15-20%. The 1080p results are all above 100 FPS, making this resolution ideal for high-refresh-rate monitors.

At 2560x1440, the averages drop to 123.3 for Low, 109.2 for Medium, 88.5 for High, and 74.3 for Ultra. The scaling from 1080p to 1440p is consistent, with an average reduction of about 30% across all settings. The 1440p results remain playable, with even Ultra settings maintaining an average above 70 FPS.

At 3840x2160, the averages fall to 68.6 for Low, 56.7 for Medium, 48.4 for High, and 40.4 for Ultra. The 4K results show a sharper drop-off, particularly at High and Ultra settings where the GPU’s memory bandwidth and pixel rate become critical constraints. The difference between Low and Ultra at 4K is 28.2 FPS, indicating that preset choice has a significant impact on playability at this resolution.

Settings Recommendations

For the best balance of visual quality and performance, the Medium preset at 2560x1440 is the recommended configuration, delivering an average of 109.2 FPS. This provides a smooth experience on high-refresh-rate 1440p monitors while maintaining acceptable visual fidelity. For users with 1080p displays, the High preset at 142.7 FPS is an excellent choice, offering near-maximum visual quality with ample performance headroom.

At 4K, the Low preset is the only option that consistently exceeds 60 FPS, with an average of 68.6 FPS. Users prioritizing 4K should accept reduced visual quality to maintain playable frame rates. The Ultra preset at any resolution below 4K is viable, with 112.6 FPS at 1080p and 74.3 FPS at 1440p, but the performance gains from dropping to High are substantial enough to recommend High for those seeking higher refresh rates.

CPU Role

The AMD Ryzen 7 9700X, with 8 cores and 16 threads, provides a strong foundation for Doom’s multi-threaded engine. Its base clock of 3.80 GHz and boost clock of 5.50 GHz, combined with 32 MB of shared L3 cache, deliver excellent single-thread performance, as evidenced by its 3dmark single-thread score of 1280 and Cinebench R23 single-core score of 4459. The CPU’s 89th percentile ranking among all CPUs indicates it is a high-end processor that will not bottleneck the RX 6600 XT in most scenarios.

The CPU’s multi-threaded performance, with a Cinebench R23 multicore score of 31588, is more than sufficient for Doom’s requirements. However, the data shows that the GPU becomes the limiting factor at higher resolutions, meaning the CPU’s full potential is only realized at 1080p where frame rates are highest. The Ryzen 7 9700X’s 65 W TDP and 4 nm process node from TSMC contribute to its efficiency, but these characteristics do not directly impact gaming performance. The CPU’s nearest rivals, such as the Intel Core i5-14500HX (0.2% higher average score) and the Intel Core Ultra 9 185H (0.4% lower), show that the Ryzen 7 9700X is competitively positioned, but the overall combo’s performance is ultimately constrained by the graphics card.