Doom

The Intel Core i7-13700K paired with the AMD Radeon RX 6750 XT delivers a strong 1080p and 1440p experience in Doom, but the data shows that 4K Ultra is the only setting where this combination struggles, falling below the 60 FPS threshold. The benchmark results indicate a system that is clearly GPU-limited at higher resolutions and settings, with the CPU providing ample headroom even at 1080p.

Resolution Scaling

The measured FPS data reveals a predictable yet pronounced drop as resolution increases, confirming that the Radeon RX 6750 XT is the primary bottleneck in this configuration. At 1080p with Low settings, the combo achieves an average of 240.1 FPS, which drops to 154.7 FPS at 1440p and further down to 81.5 FPS at 4K. This represents a 36% reduction from 1080p to 1440p and a 66% reduction from 1080p to 4K on the Low preset. The scaling pattern is consistent across all settings, indicating that the GPU's rendering load is the dominant factor.

The transition from 1440p to 4K is particularly steep. For instance, on High settings, the average FPS falls from 117.1 at 1440p to 61.9 at 4K, a 47% drop. This steep decline suggests that the 12 GB VRAM buffer and the GPU's memory bandwidth are being saturated at 4K, causing the frame rate to nearly halve. The data shows that 4K gaming is only viable on the Low preset, which still manages 81.5 FPS, but any increase in graphical fidelity at this resolution comes at a significant performance cost.

The scaling pattern also highlights that the Intel Core i7-13700K is not the limiting factor. At 1080p Low, the system reaches 240.1 FPS, which is a very high frame rate that would stress most CPUs, yet the data shows no sign of a CPU-induced plateau. The 16 cores and 24 threads of the i7-13700K, combined with its boost clock of 5.40 GHz, provide more than enough processing power to feed the GPU at these frame rates. The benchmark results indicate that the CPU maintains a comfortable lead over the GPU's capabilities at all tested resolutions.

GPU Role

The AMD Radeon RX 6750 XT is the defining component in this combo's gaming performance. Its 12 GB of GDDR6 memory on a 192-bit bus provides a bandwidth of 432.0 GB/s, which is sufficient for 1080p and 1440p gaming but becomes a limiting factor at 4K Ultra. The GPU's boost clock of 2600 MHz and game clock of 2495 MHz are high for the RDNA 2.0 architecture, allowing the card to maintain competitive frame rates at lower resolutions.

The VRAM capacity plays a critical role in the 4K results. The data shows that at 4K Ultra, the average FPS drops to 49.7, which is below the playable threshold for most gamers. This suggests that the 12 GB buffer is either being exhausted or the memory bandwidth is insufficient to handle the texture data required at this resolution and setting combination. In contrast, at 4K High, the average FPS is 61.9, indicating that reducing the texture quality and other memory-intensive settings allows the card to stay within its VRAM limits.

The GPU's compute capabilities also influence the results. With an FP32 performance of 13.31 TFLOPS and 2560 shading units, the card is well-equipped for the Vulkan API that Doom uses. The data shows that the card scales effectively with settings at 1080p and 1440p, with the difference between Low and Ultra being 97.3 FPS at 1080p and 58.5 FPS at 1440p. This wide performance range indicates that the GPU has the raw computational power to handle the game's demands, but the memory subsystem becomes the bottleneck at higher resolutions.

Settings Recommendations

For 1080p gaming, the data shows that the Ultra preset is the best choice for visual fidelity without sacrificing playability. The average FPS of 142.8 at 1080p Ultra is well above the 60 FPS target, and even the most demanding settings leave significant headroom. The High preset offers 179.4 FPS, which is beneficial for high-refresh-rate monitors, but the Ultra preset provides the best balance of image quality and performance for most users.

At 1440p, the High preset is the recommended setting. With an average FPS of 117.1, it delivers a smooth experience that is well-suited for 1440p displays. The Ultra preset at 1440p drops to 96.2 FPS, which is still playable but may show slight stutters on 144Hz monitors. The Medium preset at 138.4 FPS is also a viable option for those who prioritize frame rate over visual detail.

For 4K gaming, the data strongly suggests using the Low preset. The 81.5 FPS average at 4K Low is the only 4K setting that maintains a consistent frame rate above 60 FPS. The High preset at 61.9 FPS is borderline playable, but the Low preset provides a safer margin. The Medium preset at 72.4 FPS is a middle ground, but the visual difference between Low and Medium may not justify the 11 FPS drop. The Ultra preset at 49.7 FPS is not recommended for 4K gaming, as it falls below the playable threshold.

How This Combo Ranks

The data places this combo at rank 854 out of 1681 tested combinations, which puts it in the upper-middle tier of all systems tested for Doom. This ranking is respectable, considering that the GPU's percentile versus all GPUs is 79, meaning it outperforms 79% of all graphics cards in the database. The CPU is even stronger, with a percentile of 93 versus all CPUs, indicating that the i7-13700K is a top-tier processor.

The combo's ranking is largely determined by the GPU, as the CPU is not a bottleneck at any tested resolution. The GPU's nearest rivals in the database include the AMD Radeon RX 5600M, which scores 0.2% higher on average, and the NVIDIA GeForce RTX 5070 Ti Mobile, which scores 0.3% lower. The desktop NVIDIA GeForce RTX 3080 scores 1.3% higher on average, indicating that the RX 6750 XT is slightly behind a previous-generation high-end desktop card.

The CPU's nearest rivals are the Intel Core i7-13700KF, which scores 0.1% lower, and the AMD EPYC 4364P, which scores 0.3% higher. The i7-13700K's average benchmark score of 47282 is within 0.5% of its closest competitors, showing that it is a well-balanced processor that offers no significant performance deficit compared to its peers.

FAQ

Q: Can this combo run Doom at 4K 60 FPS?

A: Yes, but only on the Low preset, which achieves an average of 81.5 FPS. The High preset averages 61.9 FPS, while the Medium preset averages 72.4 FPS. The Ultra preset drops to 49.7 FPS, which is below 60 FPS.

Q: What is the best setting for 1440p gaming?

A: The High preset is recommended, as it delivers 117.1 FPS. The Medium preset offers 138.4 FPS for a smoother experience, while the Ultra preset drops to 96.2 FPS.

Q: Is the CPU or GPU the limiting factor in this system?

A: The GPU is the limiting factor at all resolutions. The CPU provides ample headroom, as evidenced by the 240.1 FPS result at 1080p Low, which shows no CPU-induced bottleneck.

Q: How does the RX 6750 XT compare to the RTX 3080 in this game?

A: The RTX 3080 has an average benchmark score that is 1.3% higher than the RX 6750 XT. This suggests a slight performance advantage for the RTX 3080, but the difference is small.

Q: What is the combo's overall ranking in the database?

A: The combo ranks 854 out of 1681 tested combinations for Doom, placing it in the upper-middle tier of all tested systems.

Q: How much VRAM does the RX 6750 XT have, and does it matter?

A: The GPU has 12 GB of GDDR6 memory. This is sufficient for 1080p and 1440p, but the 4K Ultra result of 49.7 FPS suggests the VRAM or memory bandwidth is a limiting factor at that resolution.

Measured FPS Breakdown

At 1920x1080, the combo delivers its highest frame rates. The Low preset averages 240.1 FPS, the Medium preset averages 209 FPS, the High preset averages 179.4 FPS, and the Ultra preset averages 142.8 FPS. All settings are well above 60 FPS, making 1080p gaming a smooth experience regardless of the preset.

At 2560x1440, the frame rates remain high but show a clear step down from 1080p. The Low preset averages 154.7 FPS, the Medium preset averages 138.4 FPS, the High preset averages 117.1 FPS, and the Ultra preset averages 96.2 FPS. The Ultra preset still maintains a high frame rate, but the gap between Low and Ultra widens to 58.5 FPS.

At 3840x2160, the performance drops significantly. The Low preset averages 81.5 FPS, the Medium preset averages 72.4 FPS, the High preset averages 61.9 FPS, and the Ultra preset averages 49.7 FPS. Only the Low and Medium presets maintain frame rates above 60 FPS, with the High preset being borderline and the Ultra preset falling below the playable threshold.

CPU Role

The Intel Core i7-13700K plays a supporting role in this combo, providing more than enough processing power for Doom. With 16 cores and 24 threads, the CPU can handle the game's multi-threaded workload without breaking a sweat. The base clock of 3.40 GHz and boost clock of 5.40 GHz ensure high single-threaded performance, which is crucial for game logic and draw calls.

The benchmark data confirms that the CPU is not a bottleneck in this configuration. At 1080p Low, the system reaches 240.1 FPS, which is a frame rate that would expose any CPU limitations. The fact that the frame rate scales linearly with resolution and settings indicates that the GPU is the sole limiting factor. The CPU's high multi-threaded performance, as evidenced by its Cinebench R23 multicore score of 39000, ensures that it can maintain high frame rates even in the most demanding scenes.

The CPU's 30 MB of shared L3 cache and 2 MB per-core L2 cache further enhance its gaming performance by reducing memory latency. The data shows that the i7-13700K is a top-tier processor, ranking in the 93rd percentile versus all CPUs, and its performance is within 0.5% of its nearest rivals. This means that the CPU will not hold back the RX 6750 XT in any scenario, and future GPU upgrades would be fully supported by this processor.