Rust

The RTX 5080 paired with the Core i5-13400F delivers a compelling Rust experience, but the benchmark data reveals a configuration that shifts its character dramatically depending on resolution and quality settings. At 1080p, the system is a high-refresh monster, while at 4K Ultra, it settles into a visually demanding but far less fluid territory. The measurements show a clear hierarchy where the GPU becomes the dominant constraint as resolution climbs, but the CPU's architectural strengths keep minimum performance respectable even in the most demanding scenarios.

Resolution Scaling

The transition from 1080p to 4K illustrates a classic scaling curve, with the most severe performance drop occurring when moving to the highest pixel count. At 1080p Low, the system averages 213 FPS, which falls to 190.1 FPS at 1440p and then to 122.4 FPS at 4K. This represents a 42.5% reduction from 1080p to 4K at Low settings, indicating that even at the lowest quality preset, the GPU is still managing a significant workload. However, the scaling pattern shifts with settings. At Ultra, the drop from 133 FPS at 1080p to 89.3 FPS at 1440p is a 32.9% decline, but the subsequent fall to 53 FPS at 4K is a 40.7% drop from 1440p. This steeper decline at higher resolutions and settings points directly to the GPU as the limiting factor, as the RTX 5080's compute resources are being saturated by the increased pixel shading and texture work.

The data suggests that at 1080p, the system is partially CPU-bound, particularly at Low settings where the 213 FPS figure is likely constrained by the i5-13400F's single-thread performance rather than the GPU. Evidence for this lies in the relatively modest FPS gains when dropping from High to Low at 1080p: 172.9 FPS to 213 FPS is a 23.2% improvement, whereas at 4K the same settings change yields a 73.9% jump from 70.4 FPS to 122.4 FPS. This divergence indicates that the CPU headroom is exhausted at 1080p, while at 4K the GPU has ample slack to benefit from reduced graphical load. The 4K Ultra result of 53 FPS is the lowest measured, confirming that the combination of 3840x2160 resolution and maximum settings is the most punishing scenario for this hardware pair.

GPU Role

The NVIDIA GeForce RTX 5080 is the undisputed performance driver in this configuration, and its specifications explain the observed scaling. With 16 GB of GDDR7 memory on a 256-bit bus, the card offers 960.0 GB/s of bandwidth, which is ample for Rust's texture streaming at 4K. The memory clock runs at 1875 MHz with 30 Gbps effective speed, and the boost clock of 2617 MHz ensures high sustained throughput. The GPU's 10752 shading units and 112 ROPs are directly responsible for the pixel fill rates that dictate High and Ultra performance. The card's FP32 compute of 56.28 TFLOPS is a strong indicator of its ability to handle the deferred rendering and dynamic lighting that Rust employs.

Benchmark results place the RTX 5080 in the 89th percentile of all GPUs, with an average benchmark score of 59188. In the nearest rival comparison, it sits 1.6% ahead of the Intel Arc A570M and 2.5% ahead of the Intel Arc A580, while trailing the Arc Pro A60 by 1.9% and the Radeon Pro W5500X by 2.6%. These deltas are small, suggesting that the RTX 5080 is well-positioned in the mid-to-high tier but not a class leader in synthetic tests. In practical Rust terms, the GPU's role is most evident at 4K, where the difference between Low and Ultra settings is 69.4 FPS (122.4 vs 53), a 131% performance swing. This wide gap confirms that the GPU's shading and ROP throughput are the primary determinants of frame rate at high resolutions, with the 16 GB VRAM preventing any memory capacity bottlenecks even at Ultra textures.

CPU Role

The Intel Core i5-13400F provides the foundation for this system, and its 10 cores and 16 threads are leveraged by Rust's multi-threaded simulation and entity processing. The processor runs at a base clock of 2.50 GHz and boosts to 4.60 GHz, which is critical for single-threaded game logic. The 20 MB of shared L3 cache helps keep frequently accessed game state data close to the cores, reducing latency. The CPU's 3DMark 16-thread score of 7314 and max-thread score of 7307 indicate strong parallel throughput, while the single-thread score of 960 shows respectable per-core performance. In Cinebench R23, the multicore score of 21279 and single-core score of 3004 further validate its balance.

The i5-13400F sits in the 82nd percentile of all CPUs with an average benchmark score of 25236. Its nearest rivals include the Core i7-13620H with a delta of 0.1% (meaning the i5 is essentially tied), the Ryzen 5 5600X3D at -0.5% (i5 slightly ahead), and the EPYC 9474F at 0.5% (i5 slightly behind). These close margins indicate that the i5-13400F is a well-rounded mid-range part that does not embarrass itself against more expensive or specialized processors. In Rust, the CPU's influence is most pronounced at 1080p Low, where the 213 FPS result approaches the practical limit of the game's engine tick rate. The fact that the 1080p High score of 172.9 FPS is only 18.8% lower than Low, while at 4K the same comparison yields a 42.5% difference, reinforces the CPU-bound nature of the lower resolution. The 65W TDP and 10 nm process node mean the CPU runs efficiently, but its locked multiplier prevents overclocking, leaving the boost clock as the sole performance lever.

FAQ

Q: What is the highest average FPS this combo can achieve in Rust?

A: The highest measured average is 213 FPS at 1920x1080 with Low settings. This is the peak of the dataset, with 1440p Low achieving 190.1 FPS and 4K Low achieving 122.4 FPS.

Q: How does the RTX 5080 compare to its closest rivals in synthetic benchmarks?

A: The RTX 5080 has an average benchmark score of 59188, which is 1.6% higher than the Intel Arc A570M and 2.5% higher than the Intel Arc A580. It trails the Intel Arc Pro A60 by 1.9% and the AMD Radeon Pro W5500X by 2.6%.

Q: Is the Core i5-13400F a bottleneck at 4K Ultra settings?

A: No. At 4K Ultra, the average FPS is 53, and the GPU is clearly the limiting factor, as lowering settings to High at 4K yields 70.4 FPS, a 32.8% improvement. The CPU has sufficient headroom at this resolution to feed the GPU.

Q: What is the performance difference between Low and Ultra settings at 1440p?

A: At 2560x1440, Low settings produce 190.1 FPS while Ultra produces 89.3 FPS. This represents a 112.9% increase in frame rate when dropping from Ultra to Low, indicating a large graphical headroom.

Q: How does the i5-13400F's single-thread performance influence Rust?

A: The CPU's 3DMark single-thread score of 960 and Cinebench R23 single-core score of 3004 suggest adequate per-core power. This is reflected in the 1080p Low result of 213 FPS, which is likely near the engine's frame rate ceiling for this processor.

Q: Does the GPU's VRAM capacity affect 4K performance?

A: The 16 GB of GDDR7 memory is sufficient for Rust at 4K, as evidenced by the 53 FPS Ultra result. There is no indication of memory capacity limiting performance; the 960.0 GB/s bandwidth is the more relevant factor for texture streaming.

Measured FPS Breakdown

The complete dataset provides a clear picture of performance across all tested configurations. At 1920x1080, the system delivers 213 FPS on Low, 184.6 FPS on Medium, 172.9 FPS on High, and 133 FPS on Ultra. The spread from Low to Ultra is 80 FPS, with the largest single step occurring between High and Ultra, a 39.9 FPS drop. At 2560x1440, the results are 190.1 FPS (Low), 143.4 FPS (Medium), 120.2 FPS (High), and 89.3 FPS (Ultra). The Medium to Low gap is 46.7 FPS, while the High to Ultra gap is 30.9 FPS. At 3840x2160, the system produces 122.4 FPS (Low), 83.8 FPS (Medium), 70.4 FPS (High), and 53 FPS (Ultra). The 4K Low result is particularly notable, as it is higher than the 1080p Ultra result of 133 FPS, highlighting how settings choices can override resolution changes.

Looking at the data holistically, the 4K Medium score of 83.8 FPS is the highest 4K result that remains playable on high-refresh displays, while 4K Ultra's 53 FPS is best suited for slower-paced scenarios. The 1440p High result of 120.2 FPS offers a balanced experience, and the 1080p High result of 172.9 FPS is ideal for competitive play. The overall combo rank in game is 69 out of 1717 tested combinations, placing this system in the top 4% of all configurations evaluated. This ranking, combined with the measured FPS, confirms that while the RTX 5080 and i5-13400F are not the absolute fastest pairing available, they deliver a well-rounded Rust experience with no single component severely limiting the other across the resolution spectrum.