Downfall

The AMD Radeon RX 6750 XT paired with the Intel Core i5-13400F delivers a versatile 1080p and 1440p experience in Downfall, but the data reveals a sharp performance cliff at 4K Ultra settings. This combination ranks 843rd out of 1741 tested configurations in the game, placing it in the middle of the pack for this horror title. The measured frame rates show a system that is well-balanced at lower resolutions, yet the GPU becomes the clear limiting factor when pixel count and graphical fidelity both max out.

Resolution Scaling

The transition from 1920x1080 to 3840x2160 exposes a classic GPU-bound scaling curve, but the shape of that curve depends heavily on the quality preset. At High settings, the average frame rate drops from 158.8 FPS at 1080p to 117.5 FPS at 1440p, then falls to 71.9 FPS at 4K. That represents a 26% reduction moving to 1440p and a further 39% drop moving to 4K, indicating that the rendering load is scaling aggressively with pixel count.

The Low preset tells a different story about the CPU’s headroom. At 1080p Low, the system produces 238.7 FPS, which falls to 168.4 FPS at 1440p and 110 FPS at 4K. The fact that 4K Low still achieves triple-digit frame rates suggests that the i5-13400F is capable of feeding the GPU adequately even at lower resolutions, where CPU overhead typically dominates. The gap between Low and High at 1080p is 79.9 FPS, but at 4K that gap narrows to 38.1 FPS, showing that the GPU’s pixel throughput becomes the bottleneck as resolution rises.

Ultra settings produce the most dramatic scaling failure. At 1080p Ultra, the system manages 103.2 FPS, which is still smooth, but 1440p Ultra drops to 72.4 FPS and 4K Ultra collapses to 43.3 FPS. The 4K Ultra result is less than half of the 1080p High figure, and the scaling pattern suggests that the RX 6750 XT simply runs out of shading and memory bandwidth headroom when asked to push 8.3 million pixels with maximum effects. The data shows that 1440p is the practical ceiling for high-fidelity play, while 4K is only viable with reduced settings.

GPU Role

The Radeon RX 6750 XT is built on the RDNA 2.0 architecture with a Navi 22 chip fabricated on TSMC’s 7 nm process. It carries 2560 shading units, 160 texture mapping units, and 64 raster operations pipelines, along with 40 ray accelerators. Its boost clock reaches 2600 MHz, while the game clock sits at 2495 MHz and the base clock at 2150 MHz. These clocks, combined with 12 GB of GDDR6 memory on a 192-bit bus, produce a bandwidth of 432.0 GB/s.

In Downfall, the GPU’s memory configuration appears to be a significant factor in the 4K Ultra result. The 12 GB frame buffer is theoretically sufficient for 4K, but the 192-bit bus width and 432.0 GB/s bandwidth become strained when Ultra settings increase texture and shadow data sizes. The benchmark scores support this interpretation: the GPU’s Passmark G3D score of 20700 and 3DMark Steel Nomad DX12 score of 2548 place it in the 79th percentile of all GPUs, yet the 4K Ultra frame rate of 43.3 FPS shows that raw compute (13.31 TFLOPS FP32) is not the limiting factor—memory throughput is.

The GPU’s nearest rivals in aggregate benchmark scores include the AMD Radeon RX 5600M (0.2% ahead), NVIDIA GeForce RTX 5070 Ti Mobile (0.3% behind), and AMD Radeon 880M (0.9% behind). These deltas are tiny, meaning the RX 6750 XT’s overall compute position is well-established. However, in Downfall, the 4K Ultra result of 43.3 FPS is 28.6 FPS lower than the 4K High result of 71.9 FPS, a 40% penalty that cannot be explained by compute alone. The data indicates that Ultra settings introduce memory pressure that the 192-bit bus cannot fully alleviate.

CPU Role

The Intel Core i5-13400F is a Raptor Lake-S part with 10 cores and 16 threads, running at a 2.50 GHz base clock and boosting to 4.60 GHz. It has 20 MB of shared L3 cache and a 65 W TDP. Multi-threaded benchmark results are strong: Cinebench R23 multicore scores 21279, Geekbench multicore scores 10971, and Passmark multithread scores 25032. Single-thread performance is also respectable, with Cinebench R23 singlecore at 3004 and Geekbench singlecore at 2301.

In this game, the CPU’s role is most evident at low resolutions and low settings. At 1080p Low, the system delivers 238.7 FPS, which is 80 FPS higher than 1080p High. This gap is largely due to the GPU becoming the bottleneck at High settings, but the fact that 1080p Low exceeds 200 FPS indicates that the i5-13400F has sufficient single-thread throughput to keep up with the GPU’s frame output. The 3DMark single-thread score of 960 and 2-thread score of 1880 confirm that the CPU’s lightly-threaded performance is adequate for a game that likely relies on a few primary threads.

The CPU’s 82nd percentile ranking among all CPUs, with an average benchmark score of 25236, puts it in a tight cluster with rivals like the Intel Core i7-13620H (0.1% ahead) and AMD Ryzen 5 5600X3D (0.5% behind). These rivals have nearly identical aggregate scores, suggesting that the i5-13400F’s 10-core/16-thread configuration is well-matched to modern game loads. In Downfall, the CPU is never the primary constraint above 1080p Low; the scaling from 1440p to 4K at any given setting is consistently GPU-driven, as evidenced by the 4K Ultra result of 43.3 FPS being far below what the CPU could theoretically feed.

FAQ

*Q: What is the best resolution to play Downfall with this hardware?*

A: The data shows 2560x1440 at High settings provides 117.5 FPS, which is well above the 60 FPS threshold while maintaining visual quality. 1920x1080 at Ultra reaches 103.2 FPS, but 1440p High offers a better balance of resolution and frame rate.

*Q: Can this system handle 4K gaming in Downfall?*

A: Yes, but only at lower settings. 4K Low achieves 110 FPS and 4K Medium reaches 89 FPS, while 4K High drops to 71.9 FPS. 4K Ultra is not playable at 43.3 FPS.

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

A: The i5-13400F has an average benchmark score of 25236, which is 0.1% higher than the Intel Core i7-13620H and 0.5% higher than the AMD EPYC 9474F. It trails the AMD Ryzen 5 5600X3D by 0.5%.

Q: Is the GPU or CPU the bottleneck in this game?

A: At 1080p Low, the system hits 238.7 FPS, indicating the CPU is not the limiting factor. At 4K Ultra, the frame rate collapses to 43.3 FPS, showing the GPU is the clear bottleneck at higher resolutions and settings.

Q: What is the GPU’s benchmark standing among all graphics cards?

A: The RX 6750 XT ranks in the 79th percentile of all GPUs, with an average benchmark score of 35327. Its nearest rival, the AMD Radeon RX 5600M, is only 0.2% ahead.

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

A: At High settings, the average frame rate drops from 158.8 FPS at 1080p to 71.9 FPS at 4K, a reduction of 86.9 FPS or approximately 55% of the 1080p performance.

Measured FPS Breakdown

At 1920x1080, the lowest resolution tested, the system shows strong performance across all presets. Low settings produce 238.7 FPS, Medium delivers 194.5 FPS, High reaches 158.8 FPS, and Ultra drops to 103.2 FPS. The step from High to Ultra costs 55.6 FPS, which is the largest single-preset penalty at this resolution, highlighting the heavy load of Ultra effects on the GPU.

Moving to 2560x1440, the frame rates remain high but show the expected scaling penalty. Low settings yield 168.4 FPS, Medium produces 140 FPS, High achieves 117.5 FPS, and Ultra falls to 72.4 FPS. The High-to-Ultra gap at 1440p is 45.1 FPS, which is a smaller absolute drop than at 1080p but a larger percentage drop (38.4% vs. 35.0%), indicating that Ultra settings become relatively more expensive as pixel count rises.

At 3840x2160, the GPU’s limits become apparent. Low settings still deliver 110 FPS, Medium maintains 89 FPS, and High manages 71.9 FPS. Ultra, however, collapses to 43.3 FPS, which is below the 60 FPS playability threshold. The total spread from Low to Ultra at 4K is 66.7 FPS, compared to 135.5 FPS at 1080p, showing that the GPU’s capacity is saturated well before reaching Ultra at this resolution. The 4K Medium result of 89 FPS is the highest playable setting for smooth gameplay, while 4K High at 71.9 FPS is acceptable for slower-paced horror gameplay.