Doom

The AMD Ryzen 7 5700X3D paired with the AMD Radeon RX 6750 XT delivers a compelling 1080p and 1440p experience in Doom, though 4K Ultra pushes the GPU to its limits. The data shows a clear hierarchy where resolution and settings interact to define performance ceilings, with the CPU’s strong multi-threaded headroom ensuring it rarely becomes the bottleneck.

Resolution Scaling

The measured FPS reveals a predictable but steep drop as resolution increases. At 1080p with Low settings, the combo achieves 240.6 FPS, which falls to 153.4 FPS at 1440p and further to 83.4 FPS at 4K. This represents a 36% reduction from 1080p to 1440p, and a further 46% drop from 1440p to 4K. The scaling pattern indicates that at 1080p, the system is heavily CPU-bound, as the Ryzen 7 5700X3D’s 8 cores and 16 threads can feed frames faster than the GPU can render them. The RX 6750 XT’s 12 GB of GDDR6 memory and 432.0 GB/s bandwidth become the limiting factor as pixel count rises.

For Ultra settings, the trend is more pronounced. The 1080p Ultra result of 143.3 FPS drops to 93 FPS at 1440p, a 35% decline, and then to 53.8 FPS at 4K, another 42% reduction. This steeper falloff at higher settings suggests that the GPU’s 2560 shading units and 64 ROPs are saturated by the combination of resolution and visual complexity. The gap between Low and Ultra at 4K is 29.6 FPS, while at 1080p that same gap expands to 97.3 FPS, confirming that the CPU can maintain high frame rates at lower resolutions but the GPU’s compute throughput—13.31 TFLOPS FP32—caps performance at 4K.

The data shows that 1440p is the sweet spot for this pairing. At High settings, the system delivers 113.9 FPS, which is 53% faster than the 4K High result of 59.8 FPS. The 4K High frame rate sits just below the 60 FPS threshold, indicating that users targeting 4K must accept Medium or Low settings to maintain smoothness. The 4K Medium result of 73.7 FPS is playable, but the jump from Medium to Ultra at 4K costs 19.9 FPS, a 27% performance hit.

GPU Role

The AMD Radeon RX 6750 XT is built on the RDNA 2.0 architecture with a Navi 22 chip, featuring a base clock of 2150 MHz and a boost clock of 2600 MHz. The game clock of 2495 MHz is the sustained frequency during typical gaming loads, and the data suggests this clock speed is well-utilized in Doom’s Vulkan-based engine. The GPU’s 12 GB VRAM capacity is not a limiting factor in any tested configuration, as the game’s texture requirements are modest even at 4K Ultra. However, the memory bandwidth of 432.0 GB/s, paired with a 192-bit bus, does influence performance scaling.

The GPU’s benchmark scores place it in the 79th percentile among all GPUs, with an average benchmark score of 35327. Its nearest rival, the NVIDIA GeForce RTX 3080, scores 35787, a delta of -1.3%, meaning the RX 6750 XT trails by a slim margin. This close performance gap is reflected in the measured FPS, where the GPU’s compute capabilities dictate results at 4K. The GPU’s pixel rate of 166.4 GPixel/s and texture rate of 416.0 GTexel/s are the raw throughput figures that explain the 4K scaling. At 4K Ultra, the 53.8 FPS result aligns with the GPU’s fill-rate limits, whereas at 1080p Low, the 240.6 FPS shows the GPU has ample headroom.

The RX 6750 XT’s 40 ray accelerators are present but irrelevant for Doom, which does not use ray tracing. The GPU’s FP32 performance of 13.31 TFLOPS is the key metric for this game’s traditional rasterization workload. The data indicates that the GPU is the primary constraint at 4K, while the CPU’s 96 MB of shared L3 cache provides a distinct advantage at lower resolutions. The Ryzen 7 5700X3D’s 3D V-Cache technology, though not explicitly labeled in the benchmark data, contributes to the CPU’s 82nd percentile ranking among all CPUs.

FAQ

Q: What is the highest average FPS this combo achieves in Doom?

A: The highest measured average FPS is 240.6 at 1920x1080 with Low settings. The second-highest is 210.2 at 1080p Medium, followed by 177.9 at 1080p High.

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

A: Yes, but only at Medium or Low settings. The 4K Medium result is 73.7 FPS, and 4K Low is 83.4 FPS. The 4K High result of 59.8 FPS falls just below 60, and 4K Ultra is 53.8 FPS.

Q: How does the CPU compare to its nearest rival in synthetic benchmarks?

A: The Ryzen 7 5700X3D has an average benchmark score of 24673, which is 0.2% higher than the Intel Core i7-1360P’s 24627 and 0.3% higher than the AMD Ryzen 5 7600X3D’s 24605. It trails the AMD Ryzen AI Max 385 by 0.6%.

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

A: At High settings, the 1080p result is 177.9 FPS, while 1440p yields 113.9 FPS. This is a 64 FPS difference, representing a 36% reduction in frame rate when moving to the higher resolution.

Q: Does the GPU’s 12 GB VRAM ever become a bottleneck?

A: No. Across all 12 measured configurations, the game runs without any indication of VRAM limitations. The GPU’s memory bandwidth and capacity are sufficient for Doom’s requirements at every resolution and setting tested.

Q: How does the GPU rank against the GeForce RTX 3080?

A: The RX 6750 XT’s average benchmark score is 35327, which is 1.3% lower than the RTX 3080’s 35787. This places the RX 6750 XT slightly behind, though the measured game FPS shows the gap is small in practice.

How This Combo Ranks

The AMD Ryzen 7 5700X3D + AMD Radeon RX 6750 XT combination ranks 868th out of 1681 tested combos in Doom. This places it in the 48th percentile of all combinations, meaning roughly half of the tested systems perform better. The rank reflects the GPU’s mid-range positioning, as the CPU is a strong performer that could drive faster graphics cards without bottlenecking. The data shows that the combo’s ranking is primarily constrained by the GPU’s 79th percentile standing, while the CPU’s 82nd percentile suggests it has more headroom.

In context, this ranking means the system is capable of high-refresh-rate 1080p gaming and solid 1440p performance, but it falls behind combos with higher-end GPUs at 4K. The 4K Ultra result of 53.8 FPS is below the 60 FPS target, which is a common threshold for competitive gaming. The combo’s rank of 868 indicates that users seeking 4K Ultra performance would need to consider a more powerful GPU, while those targeting 1080p or 1440p will find this system well-positioned.

The CPU’s nearest rivals, including the Intel Core i7-1360P and AMD Ryzen 5 7600X3D, have similar average scores, but the Ryzen 7 5700X3D’s 8 cores and 16 threads provide consistent multi-threaded performance. The GPU’s nearest rival, the RTX 3080, is only 1.3% faster on average, yet the measured FPS shows the RX 6750 XT holding its own in Doom’s optimized engine.

Measured FPS Breakdown

At 1920x1080, the system delivers its highest frame rates. Low settings produce 240.6 FPS, Medium yields 210.2 FPS, High drops to 177.9 FPS, and Ultra bottoms out at 143.3 FPS. The progression shows a 97.3 FPS difference between Low and Ultra, indicating that the CPU can sustain very high frame rates when the GPU workload is light. The 1080p results all exceed 143 FPS, making this resolution ideal for high-refresh-rate monitors.

Moving to 2560x1440, the frame rates remain strong. Low settings give 153.4 FPS, Medium provides 134.3 FPS, High reaches 113.9 FPS, and Ultra falls to 93 FPS. The gap between Low and Ultra narrows to 60.4 FPS, showing that the GPU begins to exert more influence. All 1440p results exceed 90 FPS, which is sufficient for smooth gameplay on standard 144Hz monitors.

At 3840x2160, the performance drops significantly. Low settings yield 83.4 FPS, Medium produces 73.7 FPS, High achieves 59.8 FPS, and Ultra delivers 53.8 FPS. The difference between Low and Ultra is 29.6 FPS, the smallest gap across all resolutions, confirming that the GPU is the dominant constraint at 4K. The 4K results show that only Low and Medium settings maintain frame rates above 60 FPS, while High and Ultra fall short.

Settings Recommendations

For 1080p gaming, the data supports using Ultra settings. The 143.3 FPS result at 1080p Ultra is well above the 60 FPS threshold and exceeds the refresh rate of most standard monitors. Users with 144Hz or 240Hz displays can step down to High settings for 177.9 FPS, or Medium for 210.2 FPS, sacrificing visual fidelity for higher refresh rates.

At 1440p, High settings provide the best balance. The 113.9 FPS result is smooth and visually rich, while Medium at 134.3 FPS offers a modest boost for competitive play. Ultra at 93 FPS is also viable, but the 20.9 FPS drop from High to Ultra may not justify the visual gains for all users. Low settings at 153.4 FPS are only recommended for esports-style play where maximum frame rate is paramount.

For 4K, the recommendation is Medium settings. The 73.7 FPS result is comfortably above 60 FPS, while the 4K High result of 59.8 FPS is borderline. Low settings at 83.4 FPS provide headroom for demanding scenes, but the visual degradation is significant. Ultra at 53.8 FPS is playable but risks dropping below 60 FPS during intense combat sequences. The data indicates that 4K Medium is the optimal choice for this combo, offering a 13.9 FPS advantage over High while maintaining acceptable visual quality.