Doom

The AMD Ryzen 5 5600X paired with the AMD Radeon RX 6750 XT delivers a robust experience in Doom, with benchmark results showing a clear progression from 1080p to 4K. The data indicates that this combination is well-balanced, though the GPU becomes the primary limiting factor at higher resolutions, particularly when Ultra settings are enabled.

CPU Role — cores, clocks, and how they relate to this game's results

The AMD Ryzen 5 5600X is a 6-core, 12-thread processor built on the Zen 3 architecture (codenamed Vermeer) and fabricated on a 7 nm process. Its base clock of 3.70 GHz and boost clock of 4.60 GHz provide substantial single-thread performance, which is critical for Doom’s fast-paced, physics-heavy gameplay. The CPU’s boost capability is particularly relevant here, as the game engine often relies on a few heavily loaded threads rather than scaling perfectly across all cores.

Benchmark data places the 5600X in the 78th percentile against all CPUs, with an average benchmark score of 20680. Its nearest rival, the AMD Ryzen 5 5600GT, scores 20740, a delta of -0.3%, meaning the 5600X is virtually tied with that chip. Similarly, the Intel Core i7-10700 scores 20746 (-0.3%) and the Intel Core i5-12490F scores 20794 (-0.5%), all within a narrow band. The Intel Xeon 6325P trails slightly at 20538 (0.7% delta), showing the 5600X holds its own against a range of competitors.

In Doom specifically, the 5600X’s 32 MB of L3 cache and 12 threads help maintain consistent frame pacing. At 1080p Low settings, the combo reaches 241 FPS, a figure that suggests the CPU is not a bottleneck at that resolution and preset. However, the data shows that the CPU’s contribution diminishes as resolution increases and the GPU takes over the workload. The 5600X’s single-thread score in Cinebench R23 is 2622, while its multicore score is 18578, indicating strong per-core efficiency that aligns well with Doom’s engine demands.

GPU Role — VRAM, clocks, and how they relate to this game's results

The AMD Radeon RX 6750 XT is a RDNA 2.0 architecture GPU (Navi 22 chip) with 12 GB of GDDR6 memory on a 192-bit bus, providing 432.0 GB/s of bandwidth. Its base clock is 2150 MHz, with a game clock of 2495 MHz and a boost clock of 2600 MHz. This memory configuration is ample for Doom, even at 4K Ultra settings, where the measured average FPS is 50.3. The GPU sits in the 79th percentile against all GPUs, with an average benchmark score of 35327.

Its nearest rivals show tight competition: the AMD Radeon RX 5600M scores 35264 (0.2% delta), the NVIDIA GeForce RTX 5070 Ti Mobile scores 35435 (-0.3%), and the AMD Radeon 880M scores 35646 (-0.9%). The NVIDIA GeForce RTX 3080 is notably ahead at 35787 (-1.3% delta), meaning the RX 6750 XT trails that card by just over a percentage point in aggregate benchmarks, yet the in-game results here are still strong.

The GPU’s 2560 shading units and 64 ROPs drive pixel throughput of 166.4 GPixel/s, which is directly relevant to Doom’s rendering. At 1080p, the card is clearly over-provisioned, hitting 241 FPS on Low and 142.7 FPS on Ultra. The 12 GB VRAM is never a limiter in this game; even at 4K Ultra, the frame rate is dictated by compute and rasterization rather than memory capacity. The boost clock of 2600 MHz ensures the GPU stays responsive under sustained load, though performance scaling from 1080p to 4K shows diminishing returns as the card approaches its limits.

FAQ

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

A: The data shows strong performance at 2560x1440, where High settings deliver 117.6 FPS and Ultra maintains 96.7 FPS. This resolution balances visual quality with a clear frame rate advantage over 4K, where Ultra dips to 50.3 FPS.

Q: Does the CPU bottleneck the GPU at 1080p?

A: Benchmark results indicate the CPU is not a bottleneck at 1080p. At Low settings, the combo achieves 241 FPS, and at Ultra it reaches 142.7 FPS, suggesting the Ryzen 5 5600X provides ample headroom for the RX 6750 XT at this resolution.

Q: How does the combo rank among all tested configurations?

A: It ranks 814th out of 1681 tested combos for Doom, placing it in the upper half of all systems. This position reflects balanced performance across resolutions, with no single weak point in the pairing.

Q: Is 12 GB of VRAM sufficient for 4K Ultra settings?

A: Yes, the 12 GB GDDR6 memory is adequate. The measured 4K Ultra average FPS is 50.3, which is playable, and there is no indication in the data that VRAM capacity limits performance, as the frame rate is driven by GPU compute.

Q: What is the frame rate difference between Low and Ultra at 1440p?

A: At 2560x1440, Low settings produce 157.5 FPS, while Ultra produces 96.7 FPS. This represents a drop of 60.8 FPS, or roughly 38.6% lower performance when moving from the lowest to the highest preset.

Q: How does this GPU compare to its closest rival in raw benchmarks?

A: The RX 6750 XT has an average score of 35327, which is 0.2% above the AMD Radeon RX 5600M (35264) and 0.3% below the NVIDIA GeForce RTX 5070 Ti Mobile (35435). The differences are minimal, indicating near-identical aggregate capability.

How This Combo Ranks

The AMD Ryzen 5 5600X and AMD Radeon RX 6750 XT combination ranks 814th out of 1681 tested combos in Doom, which places it in the 51st percentile of all systems. This mid-field ranking is surprising given the individual component percentiles — the CPU is at 78 and the GPU at 79 — suggesting that Doom’s engine is not fully utilizing the hardware or that other combos in the database include higher-end parts that push the average up.

The rank indicates this pairing is competent but not exceptional within the broader test pool. The data shows the combo performs best at 1440p, where it straddles the 96.7–157.5 FPS range depending on settings, which is a sweet spot for high-refresh monitors. At 4K, the rank would likely drop due to the GPU’s limitations, but the overall position remains respectable. The delta percentages against nearest CPU rivals (all within ±0.7%) and GPU rivals (all within ±1.3%) suggest this combo is not an outlier; it represents a mainstream configuration that delivers consistent, if not top-tier, results in Doom.

Resolution Scaling

The FPS data shows a clear scaling pattern across resolutions. From 1080p to 1440p, the average FPS across all settings drops by a factor of roughly 0.67 — for example, High settings go from 176.2 FPS at 1080p to 117.6 FPS at 1440p, a 33.3% reduction. Moving from 1440p to 4K, the drop is more severe: High settings fall from 117.6 FPS to 63.4 FPS, a 46.1% reduction. This steeper decline indicates that the GPU is becoming the limiting component as pixel count increases.

The pattern is consistent across all presets. At Low settings, 1080p yields 241 FPS, 1440p yields 157.5 FPS, and 4K yields 84.2 FPS. At Ultra, the figures are 142.7, 96.7, and 50.3 FPS, respectively. The proportional drop from 1080p to 4K is similar across presets (roughly 65% reduction), which confirms that the RX 6750 XT is the primary constraint at higher resolutions. The CPU’s role is minimal here; the 5600X’s 12 threads and high boost clock do not show any signs of bottlenecking at any resolution, as the frame rates scale predictably with resolution rather than stalling at a CPU-imposed ceiling. The data suggests that for 4K gaming, users would need to accept lower settings (Medium at 76 FPS or Low at 84.2 FPS) to maintain smooth gameplay.

Measured FPS Breakdown

At 1920x1080, the combo delivers its highest frame rates. Low settings average 241 FPS, Medium 211.1 FPS, High 176.2 FPS, and Ultra 142.7 FPS. These figures indicate that the 5600X and RX 6750 XT are both underutilized, with the CPU likely capping the maximum frame rate at around 241 FPS given the game’s engine limits.

At 2560x1440, performance remains strong. Low settings average 157.5 FPS, Medium 135.9 FPS, High 117.6 FPS, and Ultra 96.7 FPS. The gap between Low and Ultra is 60.8 FPS, showing that the GPU is beginning to feel the load but still holds above 96 FPS even at the highest preset.

At 3840x2160, the GPU becomes the clear bottleneck. Low settings average 84.2 FPS, Medium 76 FPS, High 63.4 FPS, and Ultra 50.3 FPS. The drop from 1080p Ultra (142.7 FPS) to 4K Ultra (50.3 FPS) is 64.7%, which aligns with the resolution’s fourfold pixel increase but also shows the GPU scaling efficiency. For 4K gaming, the data suggests using Medium or Low settings to stay above 76 FPS, while High and Ultra will dip into the 50–63 FPS range, which may be acceptable for slower-paced sections but not ideal for competitive play. Overall, the measured results show a balanced pairing that excels at 1080p and 1440p, with 4K requiring settings compromises to maintain playable frame rates.