Rust

FAQ

Q: What is the average frame rate for this combo at 1080p with Low settings?

A: The Intel Core i9-14900K paired with the NVIDIA GeForce RTX 3080 delivers an average of 216 FPS at 1920x1080 on Low settings, which is the highest measured result across all tested resolution and settings combinations.

Q: How much faster is the 1440p Medium result compared to the 4K Medium result?

A: At 2560x1440 Medium, the combo produces 100 FPS average, while at 3840x2160 Medium it drops to 59 FPS average. This represents a roughly 69% higher frame rate at the lower resolution.

Q: What is the combo's rank among all tested system configurations for this game?

A: The combo ranks 998th out of 3723 tested combinations, placing it in the upper portion of the field but not at the top tier for Rust performance.

Q: Does the RTX 3080 have enough VRAM for 4K Ultra settings?

A: The RTX 3080 features 10 GB of GDDR6X memory with a 320-bit bus and 760.3 GB/s bandwidth. Benchmark results show the 4K Ultra preset yields only 38 FPS average, indicating the memory capacity and bandwidth are insufficient to maintain high frame rates at that extreme setting.

Q: What is the lowest measured average FPS for this configuration?

A: The lowest average FPS recorded is 38 at 3840x2160 with Ultra settings. The next lowest is 50 FPS at 4K High, showing a steep performance cliff as graphical demands increase.

Q: How does the CPU's single-core performance compare to its multi-core performance in synthetic benchmarks?

A: The i9-14900K scores 2262.5 in Cinebench R23 single-core and 39399.5 in multi-core, a ratio of roughly 17.4x. In PassMark, single-thread score is 4697 while multi-thread is 58674, a ratio of about 12.5x.

GPU Role

The NVIDIA GeForce RTX 3080 is built on the Ampere architecture with a GA102 chip fabricated on Samsung's 8 nm process. Its 28,300 million transistors are packed into a 628 mm² die, and the card operates with a base clock of 1440 MHz boosting to 1710 MHz. Memory runs at 1188 MHz with 19 Gbps effective speed, feeding 10 GB of GDDR6X across a 320-bit bus for 760.3 GB/s of bandwidth. These specifications position the GPU with 8704 shading units, 272 TMUs, and 96 ROPs, alongside 68 RT cores and 272 tensor cores.

In Rust, the GPU's role scales directly with resolution and preset. At 1080p Low, the card achieves 216 FPS, suggesting it is far from saturated. As resolution increases to 1440p, the Low preset still yields 148 FPS, and at 4K Low it drops to 88 FPS. This pattern indicates the RTX 3080 can handle lighter loads easily but begins to struggle as pixel count climbs. The 4K Ultra result of 38 FPS is particularly telling—the 10 GB VRAM buffer appears to be a limiting factor, as the card's raw compute (29.77 TFLOPS FP32) should theoretically manage more if memory were not constrained. The 320-bit bus width and 760.3 GB/s bandwidth are substantial, but Rust's open-world environments with many entities and draw calls can exhaust the 10 GB capacity at high resolutions with maxed settings.

The GPU's PassMark G3D score of 25086 and 3DMark Steel Nomad DX12 score of 4407 reflect its overall capability, yet nearest rival comparisons show it sits close to the NVIDIA P106-100 (deltaPct -0.3) and AMD Radeon Pro Vega 16 (deltaPct -0.3), which are not gaming-focused cards. This suggests the RTX 3080's benchmark average is heavily influenced by compute and professional workloads rather than pure gaming metrics. In Rust specifically, the measured FPS data shows the GPU is the primary driver of performance differences across settings at 4K, where CPU bottlenecks are less likely.

How This Combo Ranks

The combination of the Intel Core i9-14900K and NVIDIA GeForce RTX 3080 ranks 998th out of 3723 tested combos in Rust, placing it in the 73rd percentile of all configurations. This rank reflects the balance between a top-tier CPU and a mid-to-high-range GPU. The CPU itself sits in the 95th percentile versus all CPUs, while the GPU is in the 68th percentile versus all GPUs, so the system's overall ranking is dragged down by the graphics card's relative position.

Examining the CPU's nearest rivals clarifies its standing: the i9-14900K averages a benchmark score of 79097, just 0.3% behind the i9-14900KF (79371) and 0.6% behind the Core Ultra 9 290HX Plus (79574). It is also 1.2% behind the AMD EPYC 7413 (80041) but 1.7% ahead of the AMD Ryzen AI Max+ 395 (77740). This puts the CPU at the top of consumer desktop performance, meaning it is unlikely to bottleneck the GPU in most scenarios.

The GPU's nearest rivals, however, tell a different story. The RTX 3080's average benchmark score of 23172 is 0.3% below the NVIDIA P106-100 (23249) and 0.3% below the AMD Radeon Pro Vega 16 (23250), and 0.4% below both the AMD Radeon RX 6600M (23273) and AMD Radeon R9 M290X (23276). These deltas are negligible, but they indicate the RTX 3080's synthetic benchmark performance is not exceptional relative to a mixed bag of older and mobile parts. In Rust, the measured FPS data shows the combo can still deliver playable frame rates at most settings, but the 998th rank out of 3723 suggests many other systems—likely with newer GPUs—achieve higher performance.

Measured FPS Breakdown

At 1920x1080, the combo produces its highest frame rates. Low settings yield an average of 216 FPS, Medium drops to 145 FPS with a minimum of 123 and maximum of 166, High yields 122 FPS, and Ultra falls to 93 FPS. The gap between Low and Ultra is 123 FPS, or roughly 57%, showing that even at 1080p, settings have a major impact on performance.

Moving to 2560x1440, the averages decrease across the board. Low delivers 148 FPS, Medium gives 100 FPS with a range of 85 to 115, High produces 84 FPS, and Ultra drops to 64 FPS. The spread between Low and Ultra here is 84 FPS, a 57% reduction, matching the proportional drop seen at 1080p. This consistency suggests the GPU is scaling predictably with settings at this resolution.

At 3840x2160, performance takes a significant hit. Low averages 88 FPS, Medium drops to 59 FPS with a minimum of 50 and maximum of 68, High falls to 50 FPS, and Ultra bottoms out at 38 FPS. The difference between Low and Ultra at 4K is 50 FPS, a 57% reduction again, but the absolute numbers are much lower. Notably, the Medium preset at 4K (59 FPS) is barely above the High preset at 4K (50 FPS), and the Ultra preset's 38 FPS is below the 50 FPS minimum of Medium, indicating severe strain at the highest settings.

The minimum and maximum FPS data, available only for Medium presets, shows that at 1080p the range is 123 to 166 FPS (a 43 FPS spread), at 1440p it is 85 to 115 (a 30 FPS spread), and at 4K it is 50 to 68 (an 18 FPS spread). This narrowing range at higher resolutions suggests reduced frame-time variance, but the lower averages mean the experience is still less smooth overall.

Resolution Scaling

The FPS drop from 1080p to 4K reveals important characteristics about the system's bottleneck. At Low settings, the average FPS goes from 216 at 1080p to 148 at 1440p to 88 at 4K. The drop from 1080p to 1440p is 31.5%, and from 1440p to 4K it is 40.5%. At Medium settings, the progression is 145 to 100 to 59, with drops of 31.0% and 41.0% respectively. High settings show 122 to 84 to 50, with drops of 31.1% and 40.5%. Ultra settings show 93 to 64 to 38, with drops of 31.2% and 40.6%.

The consistency of these percentage drops across all settings is remarkable. Each resolution step reduces FPS by roughly 31% from 1080p to 1440p and 40% from 1440p to 4K, regardless of the preset. This uniformity indicates that the GPU is the limiting component across all settings, as the CPU's workload does not change significantly with resolution changes—only the GPU's pixel processing load increases. The i9-14900K with its 24 cores and 32 threads is more than capable of feeding the GPU at any resolution, so the scaling pattern is purely driven by the RTX 3080's rendering capacity.

The fact that 4K Ultra (38 FPS) is less than half of 1080p Ultra (93 FPS) while 4K Low (88 FPS) is about 41% of 1080p Low (216 FPS) further confirms the GPU-bound nature of this system. No setting at 4K achieves 90 FPS, and only Low breaks 60 FPS, meaning users targeting 4K would need to accept significant compromises or lower their expectations to below the 60 FPS threshold.

CPU Role

The Intel Core i9-14900K is a 24-core, 32-thread processor built on the Raptor Lake architecture with a base clock of 3.20 GHz and a boost clock of 6.00 GHz. Its cache hierarchy includes 80 KB of L1 per core, 2 MB of L2 per core, and 36 MB of shared L3. The chip supports DDR4 and DDR5 memory in dual-channel configuration, runs on the Intel Socket 1700, and uses the UHD Graphics 770 integrated GPU when needed. Its 125 W TDP and unlocked multiplier make it a flexible part for both productivity and gaming.

In Rust, the CPU's role is to handle the game's simulation, entity updates, and draw-call preparation. The i9-14900K's synthetic scores are exceptional: a Cinebench R23 multi-core score of 39399.5 and single-core of 2262.5, a Geekbench multi-core of 21697 and single-core of 2655, and PassMark multi-thread of 58674 with single-thread of 4697. The PassMark physics score of 3140 and data compression score of 792694 indicate strong raw processing power that should eliminate CPU-induced frame rate drops in most scenarios.

However, the benchmark data suggests that the CPU is not the bottleneck at any resolution or setting. The consistent FPS scaling patterns described earlier, where performance drops uniformly with resolution, point to the GPU as the limiting factor. Even at 1080p Low with 216 FPS average, the CPU is likely still not maxed out, as Rust can be heavily single-threaded in certain scenarios but the i9-14900K's single-core performance (2262.5 in Cinebench R23) is among the best available. The nearest rival comparisons show the CPU is within 0.3% of the i9-14900KF and 0.6% of the Core Ultra 9 290HX Plus, so any difference in gaming would be negligible.

Settings Recommendations

Based on the measured FPS data, the optimal settings depend on the target resolution and desired frame rate. At 1080p, all presets deliver playable performance, with Low at 216 FPS, Medium at 145 FPS, High at 122 FPS, and Ultra at 93 FPS. For competitive play or high-refresh-rate monitors, Low or Medium are the best choices, as they exceed 144 FPS and maintain smooth motion. For visual quality without sacrificing too much speed, High at 122 FPS is the sweet spot, as it offers most of the graphical fidelity of Ultra while staying well above 100 FPS. Ultra at 93 FPS is acceptable but not ideal for fast-paced gameplay.

At 1440p, the options narrow. Low gives 148 FPS, which is excellent for high-refresh displays. Medium delivers 100 FPS, a good balance of visual quality and fluidity. High drops to 84 FPS, which is still playable but may feel less smooth in chaotic moments. Ultra at 64 FPS is borderline, as it risks dipping below 60 FPS in demanding scenes. For most users, Medium is the recommended preset at 1440p, as it provides a 100 FPS average with a minimum of 85 FPS, ensuring consistent performance.

At 4K, the situation is more constrained. Low produces 88 FPS, which is the only preset that comfortably exceeds 60 FPS. Medium averages 59 FPS with a minimum of 50 FPS, which can lead to noticeable stuttering. High averages 50 FPS, and Ultra drops to 38 FPS, both of which are below the 60 FPS threshold and may feel laggy. The data strongly suggests that 4K gaming with this combo requires Low settings for a smooth experience, or Medium if the user can tolerate occasional frame drops. The 10 GB VRAM limitation becomes evident at 4K Ultra, where the card cannot maintain even 40 FPS, so avoiding Ultra is advised. Overall, the best experience per the measured rows is Medium at 1080p or 1440p, where the FPS is high enough for responsive gameplay while visual settings remain reasonable.