Doom

The AMD Ryzen 5 4600G and AMD Radeon RX 6600 XT combination delivers a solid 1080p and 1440p experience in Doom, with performance scaling predictably as resolution and quality settings increase. The data shows a clear hierarchy where the GPU becomes the primary bottleneck at higher resolutions, while the CPU’s six-core, twelve-thread configuration proves more than sufficient for the game’s demands. This analysis breaks down the measured frame rates, component roles, and optimal settings based strictly on the provided benchmark data.

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

The AMD Ryzen 5 4600G is a 6-core, 12-thread processor based on the Zen 2 architecture, with a base clock of 3.70 GHz and a boost clock of 4.20 GHz. Its benchmark profile shows a single-thread score of 726 in 3dMark and a multicore score of 4889 in the max-threads test, placing it in the 75th percentile among all CPUs. In Doom, the game’s engine is capable of leveraging multiple threads, but the high frame rates observed at 1080p — up to 194.6 FPS on Low settings — indicate that the CPU is not the limiting factor at lower resolutions.

The processor’s nearest rivals include the Intel Core i5-12450H (deltaPct of 0.1) and the AMD Ryzen 3 PRO 5355GE (deltaPct of 0), meaning the 4600G performs almost identically to these parts in aggregate benchmarks. When comparing to the Intel Core i3-14100T, the 4600G trails by 0.8%, and it is 1% behind the Core i3-13100F. These small deltas suggest that the 4600G’s computational throughput is competitive with modern budget and mid-range parts, which is relevant for maintaining consistent frame pacing in Doom’s fast-paced combat.

At 4K Ultra settings, the average frame rate drops to 39.4 FPS, but this is not due to CPU limitations. The CPU’s 3dmark 2-thread score of 1430 and single-thread score of 726 show adequate per-core performance for the game’s physics and AI calculations, which are typically not the bottleneck in a 2016 title. The 4600G’s 8 MB of shared L3 cache and dual-channel DDR4 memory support with 51.2 GB/s bandwidth further ensure that data feeding is not a constraint, even when frame rates exceed 100 FPS at 1440p.

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

The AMD Radeon RX 6600 XT is built on the RDNA 2.0 architecture with 8 GB of GDDR6 memory on a 128-bit bus, delivering 256.0 GB/s of bandwidth. Its boost clock of 2589 MHz and game clock of 2359 MHz allow it to sustain high throughput, evidenced by a passmark G3D score of 16461, placing it in the 71st percentile of all GPUs. The GPU’s nearest rivals include the NVIDIA GeForce GTX 980 Ti (deltaPct of 0.1) and the NVIDIA GeForce RTX 3070, which the RX 6600 XT trails by 0.9% in aggregate scoring.

In Doom, the GPU’s role becomes dominant as resolution increases. At 1080p Low, the average FPS is 194.6, but this drops to 112.3 FPS at Ultra, a reduction of 42.3%. This scaling indicates that the RX 6600 XT’s 2048 shading units and 64 ROPs are being pushed harder with higher quality settings, but the card still delivers playable frame rates. At 1440p Ultra, the average is 74.7 FPS, and at 4K Ultra, it falls to 39.4 FPS, showing that the GPU’s compute resources are saturated at the highest resolution.

The 8 GB VRAM capacity is sufficient for Doom’s texture requirements, as the measured data shows no anomalies or crashes, but the frame rate drops suggest that memory bandwidth and fill rate are the limiting factors at 4K. The GPU’s FP32 performance of 10.60 TFLOPS and texture rate of 331.4 GTexel/s are adequate for the game’s Vulkan and OpenGL paths, but the 4K Ultra result of 39.4 FPS falls below the 60 FPS threshold, indicating the GPU cannot handle the full quality preset at that resolution.

Resolution Scaling — how FPS drops from 1080p to 4K and what it says about the limiting component

The measured frame rates show a consistent decline as resolution increases, which is typical for a GPU-bound scenario. At High settings, the average FPS drops from 139.1 at 1080p to 91.2 at 1440p, a 34.4% decrease, and then to 49.1 at 4K, a further 46.2% decrease from 1440p. This steep drop-off at 4K indicates that the RX 6600 XT’s pixel throughput is the primary constraint, as the CPU’s performance headroom is not being fully utilized.

For Low settings, the scaling is less severe but still pronounced: 194.6 FPS at 1080p, 123.7 at 1440p, and 68.7 at 4K. The 1080p to 1440p drop of 36.4% and the 1440p to 4K drop of 44.5% suggest that even at Low settings, the GPU is the limiting factor, as the CPU could likely handle higher frame rates if the GPU were faster. The Ultra preset shows the most dramatic scaling, with 112.3 FPS at 1080p, 74.7 at 1440p, and 39.4 at 4K, representing a 64.9% total reduction from 1080p to 4K.

The data reveals that at 1080p, the system is balanced, with the CPU and GPU both contributing to performance, but at 4K, the GPU is unequivocally the bottleneck. The fact that the 1080p Low result of 194.6 FPS is close to the CPU’s theoretical limit, given its 3dmark single-thread score, suggests that pushing higher frame rates would require a stronger processor, but for practical gaming, the GPU limits the experience at all resolutions above 1080p.

FAQ

Q: What is the best resolution for this CPU-GPU combo to maintain 60+ FPS?

A: The data shows that at 1440p High, the average FPS is 91.2, and at 1440p Ultra, it is 74.7, both exceeding 60 FPS. At 4K High, the average FPS drops to 49.1, so 1440p is the highest resolution that consistently stays above 60 FPS across all settings.

Q: How does the RX 6600 XT compare to its nearest rival, the GTX 980 Ti?

A: The RX 6600 XT has an average benchmark score of 27985, while the GTX 980 Ti scores 27956, resulting in a deltaPct of 0.1% in favor of the RX 6600 XT. This means the two GPUs perform nearly identically in aggregate, but the RX 6600 XT has a slight edge.

Q: Is the Ryzen 5 4600G a bottleneck for the RX 6600 XT in Doom?

A: At 1080p Low, the average FPS is 194.6, which is close to the CPU’s performance ceiling based on its 3dmark single-thread score of 726. However, at 4K Ultra, the FPS drops to 39.4, indicating the GPU is the limiting factor. The CPU is not a bottleneck at higher resolutions.

Q: What is the frame rate difference between Low and Ultra settings at 1080p?

A: At 1080p, the Low preset averages 194.6 FPS, while the Ultra preset averages 112.3 FPS. This represents a 42.3% reduction in frame rate when moving from Low to Ultra, showing the impact of quality settings on GPU load.

Q: Does the 8 GB VRAM on the RX 6600 XT cause issues at 4K?

A: The measured data shows no evidence of VRAM-related stuttering or crashes, but the 4K Ultra average FPS of 39.4 is below playable thresholds. The performance drop is more likely due to compute and bandwidth limits rather than VRAM capacity.

Q: How does the CPU’s multicore performance affect Doom’s frame rates?

A: The Ryzen 5 4600G’s 3dmark 8-thread score of 4138 and 16-thread score of 4863 indicate strong multicore capability. In Doom, frame rates at 1080p Low (194.6 FPS) and Medium (165.4 FPS) suggest the CPU can handle the game’s threading, but the GPU becomes the constraint at higher resolutions.

Settings Recommendations

The measured rows provide a clear picture of which preset offers the best experience for this hardware. At 1080p, the High preset delivers 139.1 FPS, which is well above the 60 FPS threshold and leaves headroom for smooth gameplay on high-refresh-rate monitors. The Ultra preset at 112.3 FPS is still excellent, but the 24% reduction from High to Ultra may not be worth the visual gains for most users. For competitive play, the Low preset at 194.6 FPS is optimal, but it sacrifices visual fidelity.

At 1440p, the High preset at 91.2 FPS is the best balance, as it remains above 60 FPS while providing good image quality. The Medium preset at 107.4 FPS is also viable for those seeking higher frame rates, but the Ultra preset at 74.7 FPS is the edge of playability and may cause dips in demanding scenes. For a consistent experience, High is recommended.

At 4K, no preset achieves 60 FPS on average, with the Low preset at 68.7 FPS being the only option that exceeds 60. The Medium preset at 57.9 FPS is close but below the threshold, while High at 49.1 and Ultra at 39.4 are not recommended for smooth gameplay. Users targeting 4K should either lower resolution or accept frame rates below 60 FPS, as the data shows the GPU cannot handle the game at this resolution with quality settings.

Overall, the best experience is found at 1440p High, which balances frame rate and visual quality, delivering 91.2 FPS and avoiding the steep performance penalties seen at 4K. For 1080p users, High at 139.1 FPS is the sweet spot, while the Low preset is reserved for maximum frame rate priority.