Doom

The AMD Ryzen 5 8400F paired with the NVIDIA GeForce RTX 4080 SUPER delivers exceptional performance in Doom, placing this combination in the 111th spot out of 1681 tested combos. This places it comfortably within the top 7% of all systems tested, a strong result for a 6-core processor paired with a high-end graphics card. The data shows a system capable of extreme frame rates across all resolutions, but the scaling patterns reveal where the true bottleneck lies.

Resolution Scaling

The frame rate progression from 1080p to 4K clearly identifies the GPU as the primary performance limiter in this configuration. At 1080p with High settings, the system produces 293.9 FPS. Moving to 1440p drops this to 190.6 FPS, a reduction of approximately 35%. At 4K, the average falls to 102.9 FPS, another 46% decrease from the 1440p figure. This steep, consistent decline with each resolution increase is the classic signature of a GPU-bound scenario.

The pattern holds across all settings presets. At Ultra settings, frame rates go from 237.4 FPS at 1080p to 152.5 FPS at 1440p and finally 85.6 FPS at 4K. Even at Low settings, where the CPU typically has more influence, the scaling remains GPU-dominated: 387.6 FPS at 1080p drops to 259.6 FPS at 1440p and 141.5 FPS at 4K. If the Ryzen 5 8400F were the limiting factor, we would expect to see a plateau at lower resolutions where the CPU reaches its maximum output. Instead, frame rates continue to climb dramatically at 1080p, confirming the RTX 4080 SUPER is doing the heavy lifting.

The 4K results are particularly telling. At 4K Ultra, the system still manages 85.6 FPS, which remains perfectly playable. The delta between 1080p Low and 4K Low is 246.1 FPS, a massive gap that underscores how much raw pixel throughput the RTX 4080 SUPER provides. This is not a balanced pairing where both components share the load evenly; this is a GPU-driven system where the processor has ample headroom left on the table.

How This Combo Ranks

With a combo rank of 111 out of 1681 tested combinations, this system sits in the top 6.6% of all pairings in the database. The Ryzen 5 8400F itself holds an 82nd percentile ranking among all CPUs, while the RTX 4080 SUPER sits in the 88th percentile among all GPUs. The combination of two high-percentile components yields a result that is greater than the sum of its parts in this specific title.

The CPU's nearest rivals help contextualize its performance. The AMD Ryzen 7 2700X scores 25057 in average benchmarks, a 0% delta from the 8400F's 25064 average. The AMD Ryzen 5 7500F is also essentially tied at 24993, showing a 0.3% delta. This means the 8400F performs nearly identically to a last-generation 8-core part in synthetic workloads, yet it achieves this with only 6 cores and 12 threads. The Zen 4 architecture and 4 nm process node deliver efficiency that older designs cannot match.

On the GPU side, the RTX 4080 SUPER's nearest rival is the AMD Radeon RX 6900 XT, which scores 53489 against the 4080 SUPER's 53610, a 0.2% delta. The NVIDIA card also leads the Radeon Pro W6600M by 0.4% and the RTX 5070 Ti by 2.9%. In Doom specifically, the 4080 SUPER's advantage appears even more pronounced given the game's Vulkan API support, which this NVIDIA architecture handles with particular efficiency.

Settings Recommendations

The measured data suggests that Ultra settings provide the most balanced experience across all resolutions, though the choice depends heavily on the target display. At 4K, Ultra delivers 85.6 FPS, which is smooth enough for most players. High settings at 4K boost this to 102.9 FPS, a 20% improvement that makes the game feel noticeably more fluid while sacrificing only minor visual fidelity. For players with 4K displays, High is the recommended preset.

At 1440p, the situation changes. Ultra produces 152.5 FPS, which is ideal for high-refresh-rate monitors. High settings push this to 190.6 FPS, and Medium to 222.4 FPS. The jump from Ultra to High costs 38.1 FPS, which is significant, but the visual difference between these presets in Doom is often hard to spot in fast-paced combat. For competitive play, Medium at 1440p offers 222.4 FPS, providing a substantial edge in frame time consistency.

For 1080p, the system is so powerful that even Ultra delivers 237.4 FPS, far beyond what most displays can show. Low settings produce 387.6 FPS, which is excessive for virtually any monitor. The data indicates that at 1080p, players should simply enable Ultra and enjoy the maximum visual quality, as the frame rate remains above 200 FPS regardless. There is no scenario in this resolution where settings need to be compromised.

Measured FPS Breakdown

At 1920x1080, the system shows remarkable consistency in scaling. Low settings yield 387.6 FPS, Medium drops to 348.3 FPS, High to 293.9 FPS, and Ultra to 237.4 FPS. The step from Low to Medium costs 39.3 FPS, Medium to High costs 54.4 FPS, and High to Ultra costs 56.5 FPS. The diminishing returns are evident: each preset step costs progressively more performance, but even the most demanding preset remains far above display refresh rates.

The 2560x1440 results follow a similar but steeper curve. Low produces 259.6 FPS, Medium 222.4 FPS, High 190.6 FPS, and Ultra 152.5 FPS. The gap between Low and Ultra here is 107.1 FPS, showing that resolution scaling amplifies the impact of settings. At 1440p, the GPU is working harder, and each additional visual effect takes a larger toll on frame rate.

At 3840x2160, the curve flattens. Low delivers 141.5 FPS, Medium 122.3 FPS, High 102.9 FPS, and Ultra 85.6 FPS. The difference between Low and Ultra is 55.9 FPS, smaller than at 1440p in absolute terms but proportionally similar. The 4K Ultra result of 85.6 FPS is the only measurement that falls below the 100 FPS mark, indicating that this is the boundary of the system's comfortable operating range.

GPU Role

The RTX 4080 SUPER is clearly the dominant component in this pairing. With 16 GB of GDDR6X memory on a 256-bit bus, the card provides 736.3 GB/s of bandwidth, which is more than sufficient for Doom's texture requirements at any resolution. The memory clock runs at 1438 MHz with 23 Gbps effective speed, and the 10240 shading units process geometry and pixels at an enormous rate.

The card's boost clock of 2550 MHz allows it to maintain high utilization even when pushing 4K Ultra settings. The 52.22 TFLOPS of FP32 compute power is applied directly to the game's rendering workload. The 112 ROPs handle pixel output at 285.6 GPixel/s, and the 320 TMUs deliver 816.0 GTexel/s of texture filtering. These specifications explain why the card can sustain 85.6 FPS at 4K Ultra where lesser GPUs would struggle.

The GPU's benchmark scores reinforce its position. A PassMark G3D score of 34245 and a 3DMark Steel Nomad DX12 score of 6600 place it well above the 88th percentile of all GPUs. The nearest rivals are all within 3% in average score, but in Doom's specific workload, the 4080 SUPER's architecture shows its strength. The 80 RT cores are largely irrelevant in this title, but the raw rasterization performance is what drives the exceptional frame rates.

CPU Role

The Ryzen 5 8400F provides more than enough processing power to keep the RTX 4080 SUPER fed. With 6 cores and 12 threads running at a base clock of 4.20 GHz and a boost of 4.70 GHz, this Zen 4 part delivers strong single-thread performance. The 16 MB of shared L3 cache and 1 MB L2 per core ensure that game data is readily available to the cores.

The CPU's 3DMark single-thread score of 951 and Cinebench R23 single-core score of 2943 indicate excellent per-core performance, which is what matters most in Doom's engine. The multi-threaded scores are equally respectable: Cinebench R23 multicore reaches 20851, and PassMark multithread hits 24530. These results place the 8400F in the 82nd percentile among all CPUs, with an average benchmark score of 25064.

The fact that this 6-core processor keeps pace with the Ryzen 7 2700X, which has 8 cores and 16 threads, demonstrates the efficiency of the 4 nm process and Zen 4 architecture. The 65W TDP means the CPU generates minimal heat, allowing sustained boost clocks during long gaming sessions. The 83.2 GB/s of memory bandwidth from DDR5 support ensures that data flows to the GPU without becoming a bottleneck. In Doom, where frame rates at 1080p exceed 380 FPS, the CPU's ability to maintain 387.6 FPS at Low settings shows that it is not holding the system back, even at extreme frame rates.