Doom

AMD Ryzen 7 5800X3D paired with the AMD Radeon RX 6750 XT delivers a formidable Doom experience, with benchmark results showing that the combination is heavily optimized for high-refresh-rate 1080p play while still managing respectable 4K performance. The measured data indicates a system that scales predictably across resolution and settings, with the GPU increasingly becoming the primary constraint as pixel count climbs. This analysis breaks down the FPS figures, the role of the graphics card’s specifications, and how this pairing stacks up against 1,681 other tested combinations.

Resolution Scaling

The FPS drop from 1080p to 4K is steep but consistent, revealing a classic GPU-bound scenario at higher resolutions. At High settings, the average frame rate falls from 180.1 FPS at 1920x1080 to 113.6 FPS at 2560x1440, a reduction of 66.5 FPS, and then further down to 63.4 FPS at 3840x2160. That represents a 64.8% decrease from 1080p to 4K, indicating that the Radeon RX 6750 XT’s rendering throughput is the limiting factor as resolution scales. The pattern holds across all settings: the gap between 1440p and 4K remains significant, with the latter barely maintaining playable frame rates.

At Low settings, the 1080p result of 240.7 FPS is exceptionally high, but 4K Low still drops to 81.3 FPS, showing that even with reduced visual load, the pixel count overwhelms the GPU. The scaling from Medium to High at each resolution is relatively small—for instance, at 1440p, Medium yields 137.7 FPS while High yields 113.6 FPS—suggesting that the CPU, the Ryzen 7 5800X3D with its 96 MB of shared L3 cache, is not the bottleneck until frame rates exceed roughly 200 FPS. The data suggests that at 1080p, the processor’s 16 threads and high single-thread performance (3,397 in Cinebench R23 single-core) are sufficient to feed the GPU, but the GPU’s 13.31 TFLOPS of FP32 compute becomes the ceiling as resolution increases.

The 4K Ultra result of 51.3 FPS is the only sub-60 FPS figure recorded, and it underscores the GPU’s limits. The delta between 4K Medium (74 FPS) and 4K High (63.4 FPS) is 10.6 FPS, while the jump to Ultra costs another 12.1 FPS, indicating that the highest settings carry a heavy penalty. For competitive play, sticking to 1080p or 1440p with Medium or High settings is clearly the sweet spot, as the 4K Ultra configuration approaches the edge of playability.

GPU Role

The AMD Radeon RX 6750 XT is built on the RDNA 2.0 architecture with a Navi 22 chip, and its specifications directly explain the measured performance. The GPU operates at a base clock of 2150 MHz and a boost clock of 2600 MHz, with a game clock of 2495 MHz, which drives the high frame rates seen at lower resolutions. The 12 GB of GDDR6 memory on a 192-bit bus provides 432.0 GB/s of bandwidth, which is ample for Doom’s textures and assets at 1440p, but the 4K Ultra setting likely stresses memory capacity and bandwidth, contributing to the drop to 51.3 FPS.

The card’s 40 ray accelerators and 64 ROPs are relevant, though Doom from 2016 does not heavily utilize ray tracing; the raw pixel rate of 166.4 GPixel/s and texture rate of 416.0 GTexel/s are more indicative of its rasterization strength. The 2560 shading units deliver 13.31 TFLOPS of FP32 performance, which aligns with the observed scaling: at 1080p Low, the system hits 240.7 FPS, but the same settings at 4K produce 81.3 FPS, a 66% reduction that mirrors the pixel count increase. The GPU’s 7 nm process node and 17,200 million transistors are efficient, but the 250 W TDP suggests thermal headroom is not a limiting factor in these results.

Benchmark scores place this GPU in the 79th percentile of all GPUs, with an average score of 35,327. Its nearest rivals include the NVIDIA GeForce RTX 3080, which scores 35,787 (1.3% higher), and the AMD Radeon RX 5600M at 35,264 (0.2% lower). This proximity indicates that the RX 6750 XT sits in a competitive mid-to-high tier, and the Doom results reflect that positioning—strong at 1080p, capable at 1440p, but not designed for 4K Ultra. The memory clock of 2250 MHz (18 Gbps effective) is consistent with the card’s bandwidth, and the PCIe 4.0 x16 interface ensures no bottleneck from the CPU link.

How This Combo Ranks

The AMD Ryzen 7 5800X3D plus AMD Radeon RX 6750 XT combination ranks 839th out of 1,681 tested combos in Doom, placing it in the upper half of the database. This rank is a product of the CPU’s exceptional gaming cache and the GPU’s solid mid-range performance. The Ryzen 7 5800X3D itself sits in the 83rd percentile of all CPUs, with an average benchmark score of 26,574, and its nearest rivals include the Intel Core i9-11900K (26,546, 0.1% higher) and the AMD Ryzen 5 7600 (26,617, 0.2% higher). The CPU’s 3D V-Cache, while not explicitly listed in the benchmark scores, is reflected in its strong gaming performance, and the measured FPS shows the CPU rarely holds the system back.

The combo’s rank of 839 suggests that while it is not a top-tier configuration, it outperforms many other pairings, likely because the 5800X3D’s 8 cores and 16 threads (with a boost clock of 4.50 GHz) prevent CPU bottlenecks at high frame rates. In contrast, the GPU’s 79th percentile ranking (35,327 average score) is slightly lower than the CPU’s, indicating that the graphics card is more likely to be the limiting factor in demanding scenarios. The delta between the CPU’s rivals and the combo’s rank implies that the 5800X3D boosts the pairing above what the GPU alone would achieve, especially in a game like Doom that responds well to high single-thread performance.

Compared to other combos in the database, this setup is clearly geared toward high-refresh-rate gaming at 1080p and 1440p. The 4K results, while playable, drop the rank significantly, as many combos with more powerful GPUs would achieve higher scores at that resolution. However, the data shows that for the majority of users targeting 1440p, this combo delivers a fluid experience, with the 5800X3D’s 96 MB L3 cache providing a distinct advantage over CPUs with smaller caches in cache-sensitive titles.

Measured FPS Breakdown

At 1920x1080, the results are outstanding across all settings. Low settings produce an average of 240.7 FPS, which is the highest recorded figure in the dataset. Medium settings yield 211.1 FPS, High settings drop to 180.1 FPS, and Ultra settings still manage 143.5 FPS. The spread from Low to Ultra is 97.2 FPS, demonstrating that the GPU has significant headroom even at the highest visual quality. A 240 Hz monitor would be fully utilized at Low settings, while Ultra still exceeds the refresh rate of most standard 144 Hz displays.

Moving to 2560x1440, the frame rates remain highly playable. Low settings hit 157 FPS, Medium produces 137.7 FPS, High achieves 113.6 FPS, and Ultra falls to 92 FPS. The reduction from 1080p to 1440p averages around 37% across settings, which is expected given the 1.78x increase in pixel count. The Ultra setting at 92 FPS is still smooth, and the data indicates that 1440p High is a balanced choice for visual fidelity and performance.

At 3840x2160, the GPU’s limits become apparent. Low settings produce 81.3 FPS, which is acceptable, but Medium drops to 74 FPS, High to 63.4 FPS, and Ultra to 51.3 FPS. The 4K Ultra result is the only instance below 60 FPS, suggesting that users with 4K displays should stick to Medium or High settings for a consistent experience. The scaling from 1440p to 4K shows a 48% average FPS drop, reinforcing the GPU-bound nature of the workload at this resolution.

FAQ

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

A: Based on the measured data, 1920x1080 offers the highest frame rates, with 180.1 FPS at High settings and 240.7 FPS at Low. For a balance of quality and performance, 2560x1440 High (113.6 FPS) is also excellent, while 4K Ultra (51.3 FPS) is not recommended for smooth gameplay.

Q: How does the CPU affect performance in Doom?

A: The AMD Ryzen 7 5800X3D has 8 cores and 16 threads with a boost clock of 4.50 GHz and 96 MB of shared L3 cache. The data shows that the CPU is not a bottleneck at 1080p, as frame rates exceed 200 FPS, but the GPU becomes the limiting factor at higher resolutions.

Q: Is the RX 6750 XT capable of 4K gaming in this title?

A: Yes, but with caveats. The 4K results range from 81.3 FPS at Low to 51.3 FPS at Ultra. For a stable 60 FPS experience, Medium settings (74 FPS) or High settings (63.4 FPS) are viable, but Ultra will dip below 60 FPS.

Q: How does this combo rank compared to other tested configurations?

A: It ranks 839th out of 1,681 combos, placing it in the upper half. The CPU is in the 83rd percentile of all CPUs, while the GPU is in the 79th percentile, indicating a balanced pairing where the CPU slightly outperforms the GPU in relative terms.

Q: What is the performance difference between Low and Ultra settings?

A: At 1080p, the difference is 97.2 FPS (240.7 vs 143.5). At 1440p, it is 65 FPS (157 vs 92), and at 4K, it is 30 FPS (81.3 vs 51.3). The gap narrows as resolution increases, further confirming the GPU is the primary constraint.

Q: Does the GPU’s memory configuration impact the results?

A: The RX 6750 XT has 12 GB of GDDR6 memory with 432.0 GB/s bandwidth. This is sufficient for 1080p and 1440p, but the 4K Ultra setting may stress memory capacity, as indicated by the significant FPS drop to 51.3 FPS.