Downfall

The AMD Ryzen 9 7900X paired with the AMD Radeon RX 6600 XT delivers a strong 1080p experience in Downfall, but the data shows a clear shift in bottleneck behavior as resolution climbs. This combination, ranked 1191st out of 1741 tested combos, offers a balanced profile that favors high-refresh-rate 1080p gaming while struggling to maintain playable frame rates at 4K with maximum settings.

Resolution Scaling

The measured FPS data reveals a predictable yet steep performance curve across the three tested resolutions. At 1080p with Low settings, the combo hits 193.8 FPS, which drops to 127.3 FPS at High settings—a 34% reduction. The scaling from Low to Ultra at 1080p is severe: 193.8 FPS falls to 83.1 FPS, representing a 57% performance hit when maxing out every visual option. This suggests the CPU has ample headroom at lower settings, with the GPU becoming the limiting factor as graphical load increases.

Moving to 1440p, the pattern continues but with lower absolute numbers. Low settings produce 138.5 FPS, which is 28% lower than the 1080p Low result. High settings at 1440p yield 91.3 FPS, while Ultra drops to 57.2 FPS. The gap between 1080p and 1440p at Ultra settings is 31%, indicating that the RX 6600 XT's 8 GB VRAM and 256.0 GB/s bandwidth start to strain as pixel count rises.

At 4K, the situation becomes critical. Ultra settings produce just 38.8 FPS, which is below the 60 FPS threshold for smooth gameplay. High settings recover to 57.5 FPS, barely playable, while Medium reaches 66.7 FPS. The data shows that 4K Low (86.9 FPS) is the only 4K configuration that delivers consistently smooth performance. The scaling from 1440p Ultra to 4K Ultra shows a 32% drop, while 1080p Ultra to 4K Ultra drops 53%. This steep curve indicates the GPU is the dominant bottleneck at 4K, with the Ryzen 9 7900X's 12 cores and 24 threads providing more than enough processing power for this title.

How This Combo Ranks

The combo sits at rank 1191 out of 1741 tested combinations, placing it in the lower third of all CPU-GPU pairings tested in Downfall. This ranking reflects the RX 6600 XT's position as a mid-range GPU rather than the CPU's capabilities. The Ryzen 9 7900X alone scores in the 93rd percentile among all CPUs, with an average benchmark score of 50556. Its nearest rivals include the Intel Core Ultra 5 235 (deltaPct -0.1), AMD Ryzen 9 5900XT (deltaPct -0.4), Intel Core i7-13850HX (deltaPct -0.5), and Intel Core i9-13980HX (deltaPct -0.8). These sub-1% deltas indicate the 7900X is essentially tied with these processors in overall CPU performance.

The GPU tells a different story. The RX 6600 XT sits in the 71st percentile among all GPUs, with an average benchmark score of 27985. Its nearest rivals include the NVIDIA GeForce GTX 980 Ti (deltaPct 0.1), AMD Radeon R9 M395X (deltaPct 0.4), NVIDIA GeForce RTX 3070 (deltaPct -0.9), and AMD FirePro S7150 (deltaPct -1.5). The tight clustering around the 28000 score mark shows this GPU is competitive with older flagship cards but lags behind modern mid-range offerings. The combo's overall ranking reflects this GPU limitation—the 7900X has far more computational headroom than the RX 6600 XT can utilize in Downfall.

FAQ

*Q: Can this combo run Downfall at 4K with Ultra settings?*

A: No. The measured 4K Ultra average is 38.8 FPS, which falls well below the 60 FPS target for smooth gameplay. For 4K, the data shows Low settings (86.9 FPS) or Medium settings (66.7 FPS) are the only viable options.

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

A: At 1080p, the combo delivers excellent results across all settings, with Ultra reaching 83.1 FPS. The 1440p High setting (91.3 FPS) also provides a strong balance between visual quality and performance.

Q: How does the CPU compare to its direct rivals?

A: The Ryzen 9 7900X is statistically tied with its nearest rivals, showing deltas of -0.1% to -0.8% against the Intel Core Ultra 5 235, AMD Ryzen 9 5900XT, Intel Core i7-13850HX, and Intel Core i9-13980HX.

Q: Is the GPU the limiting factor in this combo?

A: Yes. The RX 6600 XT ranks in the 71st percentile among GPUs, while the CPU ranks in the 93rd percentile. The measured FPS scaling from 1080p to 4K shows a 53% drop at Ultra settings, indicating the GPU is the primary constraint.

Q: What FPS can I expect at 1440p with High settings?

A: The measured average is 91.3 FPS, which provides smooth gameplay. This is 28% lower than the 1080p High result of 127.3 FPS.

Q: How does the GPU compare to the RTX 3070?

A: The RX 6600 XT scores 27985 on average, which is 0.9% lower than the RTX 3070's 28238 average score. The two cards are effectively performance peers in synthetic benchmarks.

Measured FPS Breakdown

At 1920x1080, the combo produces its best results. Low settings average 193.8 FPS, Medium reaches 157.6 FPS, High achieves 127.3 FPS, and Ultra drops to 83.1 FPS. The spread from Low to Ultra is 110.7 FPS, demonstrating the GPU's sensitivity to graphical settings at this resolution.

The 2560x1440 results show a clear step down. Low averages 138.5 FPS, Medium hits 110 FPS, High delivers 91.3 FPS, and Ultra bottoms out at 57.2 FPS. The Low-to-Ultra delta is 81.3 FPS, slightly smaller than at 1080p but still substantial.

At 3840x2160, performance becomes marginal. Low averages 86.9 FPS, Medium hits 66.7 FPS, High manages 57.5 FPS, and Ultra falls to 38.8 FPS. The 48.1 FPS difference between Low and Ultra at 4K is the smallest of the three resolutions, suggesting the GPU is reaching its absolute limits regardless of settings. The 1080p Low result of 193.8 FPS is 2.2 times higher than the 4K Low result of 86.9 FPS, while 1080p Ultra (83.1 FPS) is 2.1 times higher than 4K Ultra (38.8 FPS). This consistent ratio confirms the GPU-bound nature of the combo at higher resolutions.

GPU Role

The AMD Radeon RX 6600 XT features 8 GB of GDDR6 memory on a 128-bit bus, delivering 256.0 GB/s of bandwidth. Its base clock runs at 1968 MHz, with a game clock of 2359 MHz and a boost clock of 2589 MHz. The GPU's 2048 shading units, 128 TMUs, and 64 ROPs provide a raw compute capability of 10.60 TFLOPS FP32. These specifications place the card in the 71st percentile among all GPUs, with an average benchmark score of 27985.

In Downfall, the GPU's memory configuration plays a critical role. The 8 GB VRAM capacity is sufficient for 1080p and 1440p gameplay, but the 4K Ultra setting's 38.8 FPS result suggests the memory bandwidth becomes a limiting factor at higher resolutions. The card's pixel rate of 165.7 GPixel/s and texture rate of 331.4 GTexel/s are adequate for this horror title, which does not appear to require the ray tracing capabilities enabled by its 32 RT cores.

The GPU's performance relative to its nearest rivals is remarkably tight. The GTX 980 Ti scores 27956 (deltaPct 0.1), the R9 M395X scores 27883 (deltaPct 0.4), and the RTX 3070 scores 28238 (deltaPct -0.9). These sub-1% differences mean the RX 6600 XT is interchangeable with these cards in synthetic benchmarks, though real-world gaming performance in Downfall may vary based on driver optimization and API support (DirectX 12 Ultimate, Vulkan 1.4).

The card's 160 W TDP and dual-slot design make it a manageable addition to most systems, though the 450 W suggested PSU requirement should be noted. The PCIe 4.0 x8 interface provides sufficient bandwidth for this GPU class, as evidenced by the measured FPS results. The combination of the 7900X's 83.2 GB/s memory bandwidth and the GPU's 256.0 GB/s bandwidth creates a balanced system, though the CPU's headroom remains largely untapped in this GPU-bound scenario.