Downfall

# Downfall Performance Analysis: Intel Core Ultra 5 135H + AMD Radeon RX 7800M

The Intel Core Ultra 5 135H paired with the AMD Radeon RX 7800M delivers a playable but uneven experience in Downfall, with the combo ranking 1931st out of 2928 tested configurations. The data shows a system that excels at 1080p and 1440p gaming but struggles to maintain fluid frame rates at 4K Ultra settings. This mobile platform, built on Intel's Meteor Lake architecture with 14 cores and 18 threads, combined with AMD's Navi 32-based GPU featuring 12 GB of GDDR6 memory, demonstrates clear resolution-dependent behavior that buyers should understand before committing to high-refresh-rate 4K displays.

Resolution Scaling

The measured frame rates reveal a steep performance cliff as resolution increases, particularly at higher quality presets. At 1920x1080 with Low settings, the combo achieves 194 FPS average, which drops to 159 FPS at Medium and 130 FPS at High. The 1080p Ultra preset delivers 81 FPS, showing that even the most demanding settings at this resolution remain comfortably playable. Moving to 2560x1440, the Low preset still produces 139 FPS, Medium hits 114 FPS, and High reaches 93 FPS. The 1440p Ultra setting falls to 58 FPS, which exactly matches the 4K High result.

At 3840x2160, the performance picture changes dramatically. Low settings yield 86 FPS, Medium produces 71 FPS with a minimum of 60 FPS and maximum of 81 FPS, and High drops to 58 FPS. The 4K Ultra preset collapses to 36 FPS, which represents a 54% reduction compared to the 1080p High score of 130 FPS. This scaling pattern indicates that the Radeon RX 7800M becomes the primary limiting factor at 4K Ultra, while the CPU still has headroom to push higher frame rates at lower resolutions.

The transition from 1080p to 1440p at High settings shows a 28% performance drop (130 to 93 FPS), while the 1440p to 4K transition at High settings produces a 38% drop (93 to 58 FPS). This accelerating degradation suggests that pixel throughput limitations begin to dominate beyond 1440p. The gap between Low and Ultra presets widens significantly at higher resolutions: at 1080p, the difference is 113 FPS (194 vs 81), but at 4K, the difference shrinks to 50 FPS (86 vs 36), indicating that the GPU is saturated at 4K regardless of quality settings.

GPU Role

The AMD Radeon RX 7800M features a boost clock of 2335 MHz and a game clock of 2145 MHz, with 3840 shading units and 96 ROPs. Its 12 GB of GDDR6 memory on a 192-bit bus provides 432.0 GB/s of bandwidth, which proves sufficient for most presets but becomes strained at 4K Ultra. The GPU's pixel rate of 224.2 GPixel/s and texture rate of 560.4 GTexel/s explain why 4K Ultra (36 FPS) falls below playable thresholds while 1440p Ultra (58 FPS) remains borderline acceptable.

The GPU benchmarks position this card in the 73rd percentile of all GPUs, with an average benchmark score of 27883. Its nearest rival, the AMD Radeon Pro Vega 20, scores 27839 (0.2% higher), while the NVIDIA GeForce GTX 980 Ti scores 28020 (0.5% higher). These close margins suggest the RX 7800M performs similarly to older desktop flagship GPUs, which aligns with its 4K Ultra limitations in Downfall. The 3DMark Steel Nomad DX12 score of 2994 and Geekbench Vulkan score of 126668 provide additional context for its DirectX 12 Ultimate support (12_2), which Downfall likely utilizes.

The 12 GB VRAM capacity appears adequate for this game, as the measured FPS drops between Medium and Ultra at 4K (71 to 36 FPS) suggest compute or bandwidth limitations rather than memory capacity issues. The 432.0 GB/s bandwidth, while respectable for a mobile GPU, becomes a bottleneck at 4K Ultra where the 96 ROPs must fill 8.3 million pixels per frame. The DirectX 11 passmark score of 176 and DirectX 12 score of 89 indicate strong legacy API performance, but Downfall's modern rendering pipeline likely benefits more from the Vulkan score of 126668.

CPU Role

The Intel Core Ultra 5 135H provides 14 cores and 18 threads with a base clock of 3.60 GHz and boost clock of 4.60 GHz. Its 18 MB of shared L3 cache and 89.6 GB/s memory bandwidth support the GPU adequately at lower resolutions, as evidenced by the 194 FPS result at 1080p Low. The CPU's Cinebench R23 multi-core score of 11875.5 and single-core score of 1700 place it in the 81st percentile of all CPUs, with an average benchmark score of 29093.

Compared to its nearest CPU rivals, the Core Ultra 5 135H trades blows with desktop parts. The AMD Ryzen 7 5800X scores 29123 (0.1% higher), the Intel Xeon Phi 7210 scores 29245 (0.5% higher), and the AMD Ryzen 5 5600XT scores 28940 (0.5% lower). The Intel Core i5-13500HX scores 29270 (0.6% higher), showing this mobile chip delivers desktop-class multi-threaded performance. The PassMark multi-thread score of 22422 and physics score of 1482 indicate strong sustained workload capability, which helps maintain frame pacing in Downfall's horror environments.

The CPU's role becomes more apparent when examining the frame rate gaps between Low and High presets at each resolution. At 1080p, the difference between Low (194 FPS) and High (130 FPS) is 64 FPS, suggesting the GPU is the bottleneck even at High settings. However, the fact that 1080p Ultra still achieves 81 FPS confirms the CPU can feed the GPU efficiently at this resolution. The 4K Low result of 86 FPS versus 4K High at 58 FPS shows a 28 FPS gap, which narrows as resolution increases—a pattern consistent with GPU-bound performance at 4K.

The CPU's 28 W TDP and Intel BGA 2049 socket design it for mobile use, yet its performance rivals desktop parts from the same era. The PassMark single-thread score of 3521 and data encryption score of 15026 suggest strong per-core performance, which matters for Downfall's AI-driven enemy behavior and physics calculations. The 7 nm process node and Meteor Lake architecture with Arc Xe-LPG 96EU integrated graphics provide additional capabilities, though the discrete RX 7800M handles all rendering duties in this configuration.

FAQ

Q: Can this combo run Downfall at 4K with acceptable performance?

A: Yes, but only at Lower quality presets. The 4K Low setting achieves 86 FPS average, while Medium produces 71 FPS with a 60 FPS minimum. High settings drop to 58 FPS, and Ultra falls to 36 FPS, which is below smooth gameplay thresholds.

Q: What is the best resolution for this CPU-GPU pairing?

A: The data indicates 2560x1440 as the sweet spot. At High settings, the combo delivers 93 FPS, while Medium reaches 114 FPS. The 1440p Ultra setting at 58 FPS remains playable, unlike the 4K Ultra result of 36 FPS.

Q: How does the Radeon RX 7800M compare to its closest GPU rivals?

A: The RX 7800M scores 27883 on average, placing it 0.2% below the AMD Radeon Pro Vega 20 (27839) and 0.5% below the NVIDIA GeForce GTX 980 Ti (28020). It outperforms the AMD Radeon Pro W5500X (27973) by 0.3% and the AMD FirePro S7150 (28117) by 0.8%.

Q: Is the Intel Core Ultra 5 135H strong enough to avoid bottlenecking the GPU?

A: Yes, for most scenarios. The CPU's 81st percentile ranking and Cinebench R23 multi-core score of 11875.5 ensure it can keep pace with the GPU at 1080p and 1440p. The 1080p Low result of 194 FPS demonstrates the CPU can drive very high frame rates when the GPU is not the limiting factor.

Q: How much performance is lost when moving from 1080p to 4K at the same settings?

A: At High settings, the drop is from 130 FPS at 1080p to 93 FPS at 1440p (28% loss) and then to 58 FPS at 4K (38% additional loss). At Low settings, the drop is from 194 FPS to 139 FPS (28% loss) and then to 86 FPS (38% additional loss).

Q: What minimum frame rates can be expected at Medium settings?

A: The measured minimum FPS values are 135 at 1080p, 97 at 1440p, and 60 at 4K. These minimums indicate that Medium settings maintain playable frame rates even at 4K, though the average of 71 FPS at 4K Medium leaves limited headroom for demanding scenes.

How This Combo Ranks

The Intel Core Ultra 5 135H + AMD Radeon RX 7800M combination ranks 1931st out of 2928 tested combos in Downfall, placing it in the 34th percentile of all configurations. This ranking reflects a system that performs adequately for 1080p and 1440p gaming but falls behind more powerful desktop combos at 4K. The rank of 1931 suggests that roughly 997 tested configurations deliver better performance in this specific game, which is notable given the hardware's respectable individual benchmark scores.

The CPU's 81st percentile ranking and the GPU's 73rd percentile ranking might suggest a higher combined position, but Downfall's specific optimization patterns evidently favor other pairings. The 4K Ultra score of 36 FPS drags down the overall assessment, as many competing combos likely achieve higher 4K throughput. The combo's strength lies in its 1080p and 1440p performance, where it delivers frame rates exceeding 130 FPS at High settings—a result that many lower-ranked combos cannot match.

When compared to the CPU's nearest rivals, the Core Ultra 5 135H's performance delta of -0.1% versus the AMD Ryzen 7 5800X suggests that CPU choice alone does not explain the combo's mid-pack ranking. Similarly, the GPU's close margins against the Radeon Pro Vega 20 and GTX 980 Ti indicate that the RX 7800M's raw compute is competitive with older desktop parts. The combo's ranking likely suffers from Downfall's demanding 4K Ultra preset, which exposes the mobile GPU's bandwidth and ROP limitations.

Settings Recommendations

For 4K displays, the Medium preset at 3840x2160 provides the best balance of visual quality and performance, with an average of 71 FPS and a minimum of 60 FPS. The Low preset at 4K achieves 86 FPS but sacrifices significant visual fidelity. The High preset at 4K drops to 58 FPS, which is borderline for smooth gameplay, while Ultra at 36 FPS should be avoided.

At 2560x1440, the High preset at 93 FPS delivers excellent visual quality with smooth performance. Players seeking higher frame rates can use Medium at 114 FPS, while the Low preset at 139 FPS suits competitive play. The 1440p Ultra setting at 58 FPS is playable but does not justify the visual gains over High, given the 35 FPS performance penalty.

For 1080p, the Ultra preset at 81 FPS provides the most visually complete experience while maintaining fluid gameplay. The High preset at 130 FPS is ideal for high-refresh-rate monitors, and Medium at 159 FPS offers a strong balance. The Low preset at 194 FPS exceeds the refresh rate of most displays, making it unnecessary unless targeting extreme frame rates. Overall, the data suggests using 1440p High as the default configuration, with 4K Medium as an option for users prioritizing resolution over frame rate consistency.