Downfall

# Downfall with AMD Ryzen 7 7800X3D + Intel Arc B370

The AMD Ryzen 7 7800X3D paired with the Intel Arc B370 delivers playable frame rates in Downfall at lower resolutions and settings, but the combination struggles at higher resolutions and ultra settings. The measured data shows a clear pattern: the Arc B370, an integrated-class GPU with a 5th percentile ranking among all GPUs, becomes the limiting factor as resolution increases, while the 7800X3D's strong CPU performance — an 83rd percentile ranking among all CPUs — remains largely underutilized in this horror title. The combo ranks 2688 out of 2928 tested combinations, placing it in the bottom 8% of all tested systems for this game.

Resolution Scaling

The FPS drop from 1080p to 4K is dramatic across all settings, revealing that the Intel Arc B370 is the performance bottleneck rather than the CPU. At Low settings, the average frame rate falls from 96 FPS at 1920x1080 to 68 FPS at 2560x1440, then further to 43 FPS at 3840x2160. This represents a 55% reduction from 1080p to 4K at Low settings. The scaling is even more severe at Medium settings, where the 78 FPS at 1080p drops to 56 FPS at 1440p and 35 FPS at 4K — a 55% loss from the lowest tested resolution to the highest.

At High settings, the pattern continues: 64 FPS at 1080p, 46 FPS at 1440p, and 29 FPS at 4K. The drop from 1080p to 1440p is 28%, while the drop from 1440p to 4K is 37%. This progressive degradation suggests the GPU's fill rate and memory bandwidth — both system-dependent for this integrated part — are being saturated as pixel count increases. The Ultra preset shows the steepest relative decline, falling from 40 FPS at 1080p to 29 FPS at 1440p and 18 FPS at 4K. The 4K Ultra result of 18 FPS is barely interactive, confirming that this resolution and settings combination is not viable for this hardware pairing.

The scaling pattern indicates a GPU-bound scenario at all resolutions above 1080p. With only 20 ROPs and a texture rate of 96 GTexel/s, the Arc B370's rasterization throughput is limited. The fact that the 7800X3D can deliver high frame rates in CPU-bound scenarios — evidenced by its 3dmark single-thread score of 959 and 16-thread score of 7980 — but this combo still falls to 18 FPS at 4K Ultra clearly points to the GPU as the limiting component. The 1080p results, particularly the 96 FPS at Low, show what the CPU is capable of feeding when the GPU is less stressed.

GPU Role

The Intel Arc B370 is an integrated graphics solution built on the Xe3-LPG architecture with 1280 shading units, 40 TMUs, and 20 ROPs. Its boost clock reaches 2400 MHz from a 300 MHz base, and it features 10 ray tracing cores. The GPU's 3DMark Steel Nomad DX12 score of 1184 places it in the 5th percentile of all GPUs, with nearest rivals including the ATI Mobility Radeon HD 5570 (1186, 0.2% faster), ATI Radeon HD 5770 (1190, 0.5% faster), and AMD Radeon HD 7650M (1192, 0.7% faster). The AMD FirePro M2000 trails slightly at 1168, 1.4% slower.

The memory configuration is entirely system-shared, with bandwidth listed as "System Dependent." This means the GPU relies on the host system's DDR5 memory, and the 83.2 GB/s memory bandwidth of the 7800X3D's dual-channel configuration must be shared between CPU and GPU workloads. In a game like Downfall, which is a horror title from 2016, the texture and geometry demands at 4K likely exceed what this integrated solution can handle, explaining the sharp FPS drops at higher resolutions.

The measured FPS data shows the GPU's performance ceiling clearly: even at 1080p Low, the maximum observed frame rate was 96 FPS, and at 1080p Medium the range was 67-90 FPS. At 1440p Medium, the range narrowed to 48-64 FPS, and at 4K Medium it fell to 30-40 FPS. These numbers are consistent with a GPU that has limited fill rate and memory bandwidth. The 6.144 TFLOPS FP32 performance and 48.00 GPixel/s pixel rate are modest figures that translate directly to the frame rates observed.

How This Combo Ranks

The AMD Ryzen 7 7800X3D + Intel Arc B370 combination ranks 2688 out of 2928 tested combos in Downfall, placing it in the bottom 8.2% of all tested systems. This low ranking is almost entirely attributable to the GPU, as the CPU's individual percentile ranking of 83rd among all CPUs is strong, while the GPU's 5th percentile ranking is very weak.

The CPU's nearest rivals in synthetic benchmarks include the AMD Ryzen 7 8700G (33089 avg score, 0% delta), Intel Core i7-13650HX (33089, 0%), AMD Ryzen 7 7745HX (33091, 0%), and AMD Ryzen 9 PRO 6950H (33201, -0.4%). These near-identical scores suggest the 7800X3D's performance is well-established in the mid-range desktop segment. However, that CPU strength cannot compensate for the GPU's limitations in a graphics-intensive title like Downfall.

The GPU's nearest rivals in the 3DMark Steel Nomad benchmark are all older discrete parts from the early 2010s, highlighting how far behind modern integrated graphics the Arc B370 sits in raw performance. The 5th percentile ranking means 95% of all GPUs in the database outperform it. This explains why the combo ranks so low despite having a capable CPU — the GPU simply cannot keep up with the demands of the game at higher settings and resolutions.

Settings Recommendations

Based on the measured FPS data, the optimal experience balances frame rate and visual fidelity. At 1920x1080, the Low preset delivers 96 FPS average, which is smooth and responsive. The Medium preset at 1080p provides 78 FPS average with a range of 67-90 FPS, offering a significant visual upgrade over Low while maintaining playable frame rates. The High preset at 1080p drops to 64 FPS, which is still acceptable for most players. The Ultra preset at 1080p falls to 40 FPS, which may be borderline for a horror game where smooth movement matters.

At 2560x1440, the Low preset delivers 68 FPS, which is playable but requires significant visual compromises. The Medium preset at 1440p provides 56 FPS average with a range of 48-64 FPS, which is a reasonable middle ground. The High preset at 1440p drops to 46 FPS, and Ultra falls to 29 FPS, making both less desirable. At 3840x2160, only the Low preset achieves 43 FPS, while Medium drops to 35 FPS, High to 29 FPS, and Ultra to 18 FPS. None of the 4K settings provide a consistently smooth experience.

The data suggests that 1080p Medium is the sweet spot for this combo, offering 78 FPS with a tight frame time distribution (67-90 FPS range). For players prioritizing minimum frame rates, 1080p Low at 96 FPS eliminates most concerns about stuttering. At 1440p, Medium at 56 FPS is the recommended choice, as it stays above 48 FPS minimum while providing better visual quality than Low. The 4K resolution should be avoided entirely, as even the best 4K result (43 FPS at Low) falls below the 60 FPS threshold that most players consider ideal.

Measured FPS Breakdown

At 1920x1080, the measured average frame rates are as follows: Low delivers 96 FPS, Medium delivers 78 FPS with a minimum of 67 and maximum of 90, High delivers 64 FPS, and Ultra delivers 40 FPS. The progression from Low to Ultra shows a 58% reduction in frame rate, from 96 to 40 FPS. The Medium preset's frame range of 67-90 indicates some variability, but the average of 78 suggests consistent performance.

At 2560x1440, the averages are: Low at 68 FPS, Medium at 56 FPS with a range of 48-64, High at 46 FPS, and Ultra at 29 FPS. The drop from 1080p to 1440p is substantial across all settings — 29% for Low, 28% for Medium, 28% for High, and 28% for Ultra. The Medium preset's minimum of 48 FPS is notable, as it approaches the threshold where frame pacing becomes noticeable in a horror game.

At 3840x2160, the averages fall to: Low at 43 FPS, Medium at 35 FPS with a range of 30-40, High at 29 FPS, and Ultra at 18 FPS. The 4K Medium range of 30-40 FPS shows that even the best case at this resolution is marginal. The Ultra preset's 18 FPS average is below the playability threshold for most users. The scaling from 1440p to 4K is severe: 37% drop for Low, 38% for Medium, 37% for High, and 38% for Ultra.

The complete dataset shows that the combo's performance is predictable: each settings tier at a given resolution costs roughly 15-20 FPS compared to the tier below it, and each resolution step costs roughly 30-40% of the frame rate. This consistency suggests the GPU is the sole bottleneck, with the CPU never becoming a limiting factor in these measurements.

FAQ

Q: What is the best resolution and settings combination for this hardware in Downfall?

A: The data shows that 1920x1080 at Medium settings delivers 78 FPS average with a range of 67-90 FPS, making it the best balance of visual quality and performance. At 1440p, Medium at 56 FPS is the recommended option for higher resolution, while 4K should be avoided as even Low settings only reach 43 FPS.

Q: How does the Intel Arc B370 compare to its nearest GPU rivals?

A: The Arc B370 scores 1184 in 3DMark Steel Nomad DX12. Its nearest rivals are the ATI Mobility Radeon HD 5570 (1186, 0.2% faster), ATI Radeon HD 5770 (1190, 0.5% faster), AMD Radeon HD 7650M (1192, 0.7% faster), and AMD FirePro M2000 (1168, 1.4% slower). All are within 1.4% of the Arc B370's score.

Q: Why does the combo rank so low (2688 out of 2928) in Downfall despite having a strong CPU?

A: The AMD Ryzen 7 7800X3D ranks in the 83rd percentile among all CPUs, but the Intel Arc B370 ranks in the 5th percentile among all GPUs. In a graphically demanding game like Downfall, the GPU's limited fill rate and system-shared memory bandwidth become the bottleneck, dragging the overall combo performance down.

Q: What is the frame rate difference between Low and Ultra settings at each resolution?

A: At 1080p, Low achieves 96 FPS while Ultra achieves 40 FPS, a 56 FPS difference. At 1440p, Low achieves 68 FPS while Ultra achieves 29 FPS, a 39 FPS difference. At 4K, Low achieves 43 FPS while Ultra achieves 18 FPS, a 25 FPS difference.

Q: Is the CPU or GPU the limiting factor in this game?

A: The GPU is clearly the limiting factor. The 7800X3D's strong CPU scores — including a 3dmark 16-thread score of 7980 and Cinebench R23 multicore of 16817 — are far ahead of the GPU's needs. The sharp FPS drops from 1080p to 4K, combined with the GPU's 5th percentile ranking, confirm that the Arc B370 is the performance ceiling.

Q: What frame rates can users expect at 1440p with Medium settings?

A: At 2560x1440 with Medium settings, the measured average is 56 FPS with a minimum of 48 and maximum of 64. This is the only 1440p setting that maintains an average above 50 FPS, though the 48 FPS minimum may be noticeable during intense scenes.

CPU Role

The AMD Ryzen 7 7800X3D is an 8-core, 16-thread processor from the 7000 series, built on the Zen 4 architecture (codenamed Raphael) using a 5 nm process at TSMC. It operates at a 4.20 GHz base clock and 5.00 GHz boost clock, with a 120 W TDP and 96 MB of shared L3 cache. The CPU's synthetic benchmarks are strong: Cinebench R23 multicore scores 16817, Geekbench multicore scores 15610, and Passmark multithread scores 34293. Its single-thread performance is equally solid, with a Geekbench single-core score of 2426 and Cinebench R23 single-core of 1713.

In the context of Downfall, the CPU's role is to feed the GPU with draw calls and game logic. The 7800X3D's 3dmark 16-thread score of 7980 and 8-thread score of 6539 indicate ample processing power for modern games. The processor's 83rd percentile ranking among all CPUs, with an average benchmark score of 33079, places it in the upper tier of desktop processors. Its nearest rivals — the Ryzen 7 8700G, Core i7-13650HX, and Ryzen 7 7745HX — all score within 0.1% of the 7800X3D in average benchmarks, showing that its performance is competitive with current mid-range and high-end parts.

The CPU's memory bandwidth of 83.2 GB/s over a dual-channel DDR5 interface is shared with the integrated GPU. This creates a potential contention point, as the Arc B370's system-shared memory architecture relies on the same memory subsystem. However, the measured FPS data suggests that even with this sharing, the CPU is never the bottleneck — the frame rates scale consistently with GPU load rather than CPU capability. The 1080p Low result of 96 FPS is likely near the practical limit for this GPU, not the CPU, as the 7800X3D could easily support higher frame rates in less GPU-bound scenarios.