Doom

The AMD Ryzen 5 4600G pairs with the AMD Radeon RX 6800 XT to form a combo that delivers high frame rates in Doom, but the data reveals a significant bottleneck at lower resolutions. This analysis examines the measured FPS across 1080p, 1440p, and 4K, interpreting how the CPU’s six cores and the GPU’s massive memory bandwidth each contribute to the final result.

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

The AMD Ryzen 5 4600G is a six-core, twelve-thread processor based on the Zen 2 architecture, built on a 7 nm process. Its base clock is 3.70 GHz, and it boosts up to 4.20 GHz, with a 65 W TDP. For a game like Doom, which is an FPS title from 2016, the CPU's single-thread performance and core count both matter. The processor has 8 MB of shared L3 cache and 512 KB of L2 per core, which helps with game logic and draw calls.

In synthetic benchmarks, the 4600G scores 726 in 3dmark_single_thread and 1919 in cinebench_r23_singlecore. These scores indicate modest single-core capability. Its multi-threaded scores are stronger: 4889 in 3dmark_max_threads and 13593 in cinebench_r23_multicore. The processor sits at the 75th percentile of all CPUs, with an average benchmark score of 17489. Its nearest rival, the AMD Ryzen 3 PRO 5355GE, has an average score of 17482, a delta of 0%, meaning the 4600G is effectively tied with that chip. It is also 0.1% faster than the Intel Core i5-12450H, and 0.8% faster than the Intel Core i3-14100T.

In Doom, the CPU's role becomes apparent at 1080p. At 1920x1080 with Low settings, the combo hits 276.4 FPS average. With High settings, it drops to 216 FPS. This 60 FPS difference is substantial and suggests that the CPU is the limiting factor, as the GPU is not being fully utilized at these lower resolutions. The processor’s 12 threads are sufficient for Doom’s engine, but the single-thread performance caps the maximum frame rate. At 4K Ultra, the average FPS is 62, a drop of over 200 FPS from 1080p Low, which clearly shifts the bottleneck to the GPU.

How This Combo Ranks — use comboRankInGame vs other tested combos

The combination of the Ryzen 5 4600G and RX 6800 XT ranks 609th out of 1681 tested combos in Doom. This places it in the upper third of all systems tested, which is a strong position for a pairing that includes a lower-end CPU and a high-end GPU. The rank reflects the average FPS across all tested settings and resolutions, and the data shows that the combo performs best at 1440p and 1080p, where the GPU can stretch its legs.

The 609th rank is notable because the RX 6800 XT is a very powerful GPU. Its average benchmark score is 49982, placing it in the 87th percentile of all GPUs. Its nearest rival, the Intel Arc A550M, scores 49737, a delta of 0.5%, meaning the 6800 XT is slightly ahead. However, the CPU’s 75th percentile ranking drags the overall combo down. If the CPU were stronger, the combo would likely rank higher, but the data shows that at 1080p, the CPU is holding back the GPU.

The gap between the CPU and GPU percentiles (75th vs 87th) is a clear indicator of imbalance. In Doom, this imbalance is most visible at 1080p Low, where the FPS of 276.4 is high but not as high as a stronger CPU could achieve with the same GPU. At 4K Ultra, the combo’s rank is more representative of the GPU’s capability, as the FPS of 62 is typical for a high-end card at that resolution with Ultra settings.

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

The measured FPS data shows a clear scaling pattern across resolutions. At 1080p with Low settings, the combo averages 276.4 FPS. Moving to 1440p Low, it drops to 187 FPS, a reduction of 89.4 FPS (32.3%). At 4K Low, the average is 104.5 FPS, another significant drop of 82.5 FPS (44.1%). This scaling is typical for a GPU-bound scenario, but the magnitude of the drop from 1080p to 1440p suggests that the CPU is still involved at 1080p.

Looking at High settings, the pattern is similar: 216 FPS at 1080p, 139.5 FPS at 1440p, and 73.9 FPS at 4K. The drop from 1080p to 1440p is 76.5 FPS (35.4%), while from 1440p to 4K it is 65.6 FPS (47.0%). The larger percentage drop from 1440p to 4K indicates that the GPU becomes the primary limiting factor at higher resolutions. At 1080p, the CPU is likely the bottleneck, as the FPS of 216 is high but not as high as the GPU could theoretically produce.

Ultra settings show the most dramatic scaling: 177.1 FPS at 1080p, 112 FPS at 1440p, and 62 FPS at 4K. The drop from 1080p to 1440p is 65.1 FPS (36.8%), and from 1440p to 4K it is 50 FPS (44.6%). The fact that the 4K Ultra FPS is only 62, versus 104.5 at 4K Low, shows that the GPU is heavily taxed by the Ultra settings. This confirms that at 4K, the RX 6800 XT is the limiting component, while at 1080p, the Ryzen 5 4600G is the bottleneck.

FAQ

Q: What is the average FPS for this combo in Doom at 1080p with High settings?

A: The average FPS is 216 at 1920x1080 with High settings.

Q: How does the combo rank among all tested systems in Doom?

A: The combo ranks 609th out of 1681 tested combinations, placing it in the upper third of all systems.

Q: Which component is the bottleneck at 4K Ultra settings?

A: The data shows the GPU is the limiting factor at 4K Ultra, as the average FPS drops to 62, a significant reduction from the 177.1 FPS seen at 1080p Ultra.

Q: How does the CPU's benchmark score compare to its nearest rival?

A: The Ryzen 5 4600G has an average benchmark score of 17489, which is tied (0% delta) with the AMD Ryzen 3 PRO 5355GE at 17482.

Q: What is the FPS difference between 1080p Low and 4K Low settings?

A: The average FPS drops from 276.4 at 1080p Low to 104.5 at 4K Low, a reduction of 171.9 FPS.

Q: What is the GPU's percentile ranking compared to all GPUs?

A: The AMD Radeon RX 6800 XT is in the 87th percentile of all GPUs, with an average benchmark score of 49982.

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

The AMD Radeon RX 6800 XT is a high-end GPU based on the RDNA 2.0 architecture, built on a 7 nm process. It has 16 GB of GDDR6 memory on a 256-bit bus, providing a memory bandwidth of 512.0 GB/s. The GPU has a base clock of 1825 MHz, a game clock of 2015 MHz, and a boost clock of 2250 MHz. With 4608 shading units, 288 TMUs, and 128 ROPs, it delivers a pixel rate of 288.0 GPixel/s and a texture rate of 648.0 GTexel/s. The FP32 performance is 20.74 TFLOPS.

In Doom, the GPU's role is dominant at 4K resolutions. At 3840x2160 with Ultra settings, the combo achieves 62 FPS, which is a playable frame rate but not high. The GPU’s 16 GB of VRAM is more than sufficient for Doom, even at 4K Ultra, as the game is not memory-intensive. The high memory bandwidth of 512.0 GB/s ensures that texture streaming is not a bottleneck. The GPU’s benchmark scores support its strong performance: it scores 24980 in passmark_g3d and 152200 in geekbench_vulkan, indicating strong DirectX and Vulkan performance.

Compared to its nearest rivals, the 6800 XT is 0.5% ahead of the Intel Arc A550M, 1.9% ahead of the NVIDIA CMP 50HX, and 2.6% ahead of the NVIDIA GeForce RTX 4070 Ti SUPER in average benchmark score. This places it as a top-tier GPU, but its performance in Doom at 1080p is limited by the CPU. At 4K, the GPU shows its strength, with 104.5 FPS on Low settings, which is a high frame rate for that resolution. The GPU’s 87th percentile ranking confirms that it is a powerful component, but the combo’s overall rank of 609th is dragged down by the CPU’s 75th percentile. In summary, the RX 6800 XT is the star of this pairing in Doom at high resolutions, but the Ryzen 5 4600G prevents it from reaching its full potential at 1080p.