Downfall

Downfall, a 2016 horror title, shows a clear performance hierarchy when paired with the Intel Core Ultra 7 265K and AMD Radeon RX 6800 XT. The data indicates that this combination is heavily GPU-bound at higher resolutions, while the CPU's strong multi-threading provides ample headroom at lower settings. The following analysis breaks down the measured frame rates, component roles, and optimal settings based solely on the provided benchmark data.

Resolution Scaling

The transition from 1080p to 4K reveals a classic GPU-bound scenario, with frame rates dropping significantly as pixel count increases. At High settings, the average FPS falls from 195 at 1920x1080 to 139 at 2560x1440, a 29% reduction, and then further to 87 at 3840x2160, which is a 55% drop from the 1080p baseline. This steep decline indicates that the Radeon RX 6800 XT is the primary limiting factor at higher resolutions, as the rendering workload scales directly with resolution.

The Low preset shows an even more dramatic scaling pattern, with average FPS of 291 at 1080p, 207 at 1440p, and 129 at 4K. The 1080p-to-4K drop here is 56%, nearly identical to the High preset's relative loss, but the absolute numbers are much higher. This suggests that even at Low settings, where CPU overhead is typically the bottleneck at lower resolutions, the GPU still governs the scaling curve once you move past 1080p.

At Medium settings, the measured frames include minimum and maximum values, providing a clearer picture of stability. The average FPS goes from 238 at 1080p (with a min of 202) to 170 at 1440p (min 144) and 106 at 4K (min 90). The scaling from 1080p to 4K is a 55% reduction, mirroring the other presets. Notably, the minimum FPS at 4K (90) is still quite playable, indicating that the 16 GB VRAM buffer is sufficient to avoid severe stutter even at high pixel densities.

The Ultra preset is the most demanding, with average FPS dropping from 122 at 1080p to 87 at 1440p and just 54 at 4K. The 1080p-to-4K reduction here is 56%, consistent with the other settings. The 4K Ultra result of 54 FPS is the only measured configuration that falls below the 60 FPS threshold, suggesting that this preset is too heavy for the RX 6800 XT at 4K. Overall, the data shows that the RX 6800 XT scales predictably with resolution, losing roughly half its frame rate when going from 1080p to 4K regardless of quality preset.

GPU Role

The AMD Radeon RX 6800 XT, built on the RDNA 2.0 architecture with the Navi 21 chip, is the clear performance driver in this pairing. Its 16 GB of GDDR6 memory on a 256-bit bus provides 512.0 GB/s of bandwidth, which is crucial for feeding the 4608 shading units at high resolutions. The GPU's boost clock of 2250 MHz (with a base of 1825 MHz and a game clock of 2015 MHz) delivers a measured FP32 performance of 20.74 TFLOPS, which directly correlates with the strong frame rates seen at 1080p and 1440p.

The GPU's benchmark scores reinforce its position. It holds an 85th percentile ranking among all GPUs, with an average benchmark score of 48477. Its nearest rivals in the database include the NVIDIA GeForce RTX 5070 Ti, which scores 49957 (a 3% delta), and the AMD Radeon RX Vega 64 at 50001 (also a 3% delta). The RX 6800 XT trails these by a small margin, but it beats the Intel Arc A550M (49737) by 2.5%. In DirectX 12 testing, it scores 100 on Passmark, while in DirectX 11 it achieves 264, showing strong API support for a 2020-era title like Downfall.

The 16 GB VRAM capacity is particularly relevant for Downfall, a horror game that often uses high-resolution textures to build atmosphere. The measured data shows no min FPS values for High, Low, or Ultra presets, but the Medium preset records a min FPS of 90 at 4K, suggesting that texture loading is not causing severe hitches. The GPU's memory clock of 2000 MHz (16 Gbps effective) and 128 ROPs contribute to the pixel rate of 288.0 GPixel/s, which is sufficient to handle the game's rendering demands at all tested resolutions. The card's 300 W TDP and dual-slot design are typical for this performance class, and its PCIe 4.0 x16 interface ensures full bandwidth to the CPU.

Settings Recommendations

For the best balance of visual quality and performance, the Medium preset at 2560x1440 is the standout choice. It delivers an average of 170 FPS with a minimum of 144, which is well above the 60 FPS threshold and provides smooth gameplay on high-refresh-rate monitors. The 170 FPS average is 22% higher than the High preset at the same resolution (139 FPS), while the visual difference between Medium and High is often negligible in a game like Downfall, which relies more on lighting than geometry detail.

At 3840x2160, the High preset is the recommended option, yielding 87 FPS average. This is significantly better than the Ultra preset's 54 FPS, which would feel sluggish, and the Medium preset's 106 FPS, which is only 22% faster than High but might reduce texture fidelity in a horror game where visual immersion matters. The High preset at 4K also avoids the need to drop to Low, which at 129 FPS is overkill for most displays and sacrifices too much visual quality.

For 1080p users, the Ultra preset is viable, with 122 FPS average. However, the Medium preset at 238 FPS (min 202) is a better choice for competitive or fast-paced play, as it offers nearly double the frame rate of Ultra while still maintaining decent visuals. The Low preset at 291 FPS is only meaningful for extreme high-refresh-rate displays (240 Hz or above), as the difference between Low and Medium (238 FPS) is marginal in practical terms. Overall, Medium at 1080p and 1440p, and High at 4K, provide the best measured experience.

Measured FPS Breakdown

The full dataset reveals a consistent pattern across all resolutions and settings. At 1920x1080, the average FPS ranges from 291 (Low) to 238 (Medium) to 195 (High) to 122 (Ultra). The Medium preset shows a min/max of 202/273, indicating tight frame pacing. At 2560x1440, the numbers drop to 207 (Low), 170 (Medium, min 144/max 195), 139 (High), and 87 (Ultra). The 1440p Medium result is particularly noteworthy, as its minimum of 144 FPS exactly matches the refresh rate of many 1440p gaming monitors, ensuring tear-free gameplay with V-Sync.

At 3840x2160, the average FPS falls to 129 (Low), 106 (Medium, min 90/max 121), 87 (High), and 54 (Ultra). The 4K Medium result shows that the GPU can maintain a playable frame rate even at the highest resolution, but the Ultra preset drops below 60 FPS, which is the minimum for a smooth experience in a slow-paced horror game. The delta between Low and Ultra at 4K is 75 FPS (129 vs 54), while at 1080p the same delta is 169 FPS (291 vs 122), demonstrating that the Ultra preset's extra effects scale more heavily with resolution.

In terms of relative performance, the High preset at 4K (87 FPS) is only 18% slower than the Medium preset (106 FPS), making it a more efficient choice for 4K. Conversely, the Low preset at 1080p (291 FPS) is 22% faster than Medium (238 FPS), but the visual compromise is substantial. The data shows that the RX 6800 XT is most efficient at 1440p, where all four presets deliver above 87 FPS, with Medium and High offering the best balance of quality and speed.

FAQ

Q: What is the best resolution for this CPU/GPU combo in Downfall?

A: The data shows 2560x1440 at Medium settings is optimal, with an average of 170 FPS and a minimum of 144 FPS. This provides high frame rates while maintaining good visual quality, as the 1440p High preset drops to 139 FPS.

Q: Can this system run Downfall at 4K smoothly?

A: Yes, at High settings the average FPS is 87, which is above the 60 FPS threshold. The Ultra preset at 4K drops to 54 FPS average, which is not recommended for smooth gameplay.

Q: How much performance is lost going from 1080p to 4K?

A: Across all settings, the average FPS drops by roughly 55-56% when moving from 1920x1080 to 3840x2160. For example, High settings go from 195 FPS at 1080p to 87 FPS at 4K, a 55% reduction.

Q: Is the Radeon RX 6800 XT the bottleneck in this setup?

A: Yes, the scaling pattern indicates a GPU bottleneck. At 1080p, the frame rates are very high (up to 291 FPS on Low), but they drop significantly with resolution, showing the GPU's rendering limits. The CPU's benchmarks (94th percentile) are strong enough to keep up.

Q: What is the difference between Medium and Ultra settings?

A: At 1440p, Medium averages 170 FPS while Ultra averages 87 FPS, a 95% performance gap. At 4K, the gap is even larger: Medium averages 106 FPS while Ultra averages 54 FPS, meaning Ultra is roughly half the speed of Medium.

Q: How does the RX 6800 XT compare to its nearest rivals in benchmarks?

A: The RX 6800 XT has an average benchmark score of 48477, which is 2.5% lower than the Intel Arc A550M (49737) and 3% lower than both the NVIDIA GeForce RTX 5070 Ti (49957) and AMD Radeon RX Vega 64 (50001). It is 1.5% higher than the NVIDIA RTX A1000 Mobile (47743).

CPU Role

The Intel Core Ultra 7 265K provides the computational foundation for this pairing, and its 20 cores and 20 threads are more than sufficient for Downfall's demands. With a base clock of 3.90 GHz and a boost clock of 5.50 GHz, the CPU handles single-threaded tasks efficiently, as evidenced by its Cinebench R23 single-core score of 2020 and Geekbench single-core score of 2713. The multi-core performance is equally strong, with a Cinebench R23 multi-core score of 35850 and a Geekbench multi-core score of 23085.

The CPU's benchmark results place it in the 94th percentile of all CPUs, with an average benchmark score of 70879. Its nearest rivals include the Intel Core i7-14700KF (70163, a 1% delta) and the AMD Ryzen 7 9700F (69996, a 1.3% delta), showing that the 265K is slightly faster than these alternatives. The CPU's 30 MB of shared L3 cache and 3 MB per-core L2 cache, combined with dual-channel DDR5 memory support (102.4 GB/s bandwidth), provide ample data throughput for feeding the GPU.

In Downfall, the CPU's role is to maintain frame pacing and handle game logic, AI, and physics. The measured FPS data shows that at 1080p Low, the system reaches 291 FPS, which is likely near the CPU's limit for this game, as the frame rate is not bounded by the GPU at this resolution. However, the CPU's strong single-thread performance (Passmark single-thread score of 4928) ensures that even at higher frame rates, there is no stutter or frame-time spikes. The CPU's 3 nm process node and 125 W TDP also contribute to efficient operation, and its launch MSRP of $394 positions it as a high-end desktop part. The data confirms that the 265K is not a bottleneck in this configuration, as the GPU-bound scaling at higher resolutions is consistent with the RX 6800 XT's capabilities.