Rust

Rust is a demanding survival title that scales heavily with both CPU and GPU, and the combination of the Intel Core Ultra 5 245 with the NVIDIA GeForce RTX 5090 produces a fascinating performance curve across resolutions. At 1080p, the system is clearly CPU-bound in most settings, while at 4K, the GPU becomes the dominant factor. The measured data shows that at 1920x1080 with Low settings, the combo achieves 269 FPS, which drops to 185 FPS at High settings. Moving to 2560x1440, the same Low-to-High spread goes from 224 FPS down to 127 FPS, and at 3840x2160, the numbers fall to 132 FPS on Low and 75 FPS on High. This scaling pattern—where the gap between Low and High narrows as resolution increases—reveals that the RTX 5090 has enough headroom to push high frame rates at lower resolutions, but the CPU’s 14 cores and 5.10 GHz boost clock become a limiting factor as pixel count rises.

Resolution Scaling

The FPS drop from 1080p to 4K is dramatic but predictable for a game like Rust. At Low settings, the average frame rate falls from 269 FPS at 1920x1080 to 224 FPS at 2560x1440 (−16.7%), and then to 132 FPS at 3840x2160 (−41.1% from 1440p). This is a steep decline, but it indicates that even at 4K Low, the system remains well above the 60 FPS threshold for smooth gameplay. At High settings, the progression is 185 FPS → 127 FPS → 75 FPS across 1080p, 1440p, and 4K, respectively. The percentage drop from 1440p to 4K is 40.9%, nearly identical to the Low preset, suggesting that the GPU is scaling consistently with pixel count once the CPU is not the bottleneck.

The Medium preset provides the most complete data, with min and max FPS recorded. At 1920x1080 Medium, the average is 219 FPS with a min of 186 and max of 251. At 2560x1440 Medium, the average drops to 150 FPS (min 128, max 173), and at 3840x2160 Medium, it falls to 89 FPS (min 76, max 102). The min FPS at 4K Medium is 76, which is still comfortably above 60, indicating that the system handles frame pacing well even under load. The Ultra preset shows the heaviest cost: 140 FPS at 1080p, 97 FPS at 1440p, and just 57 FPS at 4K. That 57 FPS average at 4K Ultra is the only scenario where the system dips below the 60 FPS playability threshold, making it clear that Ultra settings at native 4K are too demanding.

What this scaling tells us is that the RTX 5090 is powerful enough to saturate the CPU at lower resolutions. The difference between Low and High at 1080p is 84 FPS (269 vs 185), while at 4K the same preset gap is only 57 FPS (132 vs 75). This narrowing gap suggests that at 4K, the GPU is working hard enough that CPU limitations become less relevant, but at 1080p, the Core Ultra 5 245’s single-thread performance from its 5.10 GHz boost clock is what determines the ceiling. For players targeting 1440p, the system offers a balanced experience—High settings deliver 127 FPS, which is ideal for high-refresh-rate monitors.

How This Combo Ranks

In the benchmark database, this specific CPU-GPU pairing ranks 40th out of 2953 tested combos for Rust. That places it in the top 1.4% of all configurations, which is an exceptional result for a game that is known to be particularly sensitive to both processor and graphics hardware. The rank reflects the synergy between the Core Ultra 5 245 and the RTX 5090, where the CPU’s 14 cores (14 threads) provide ample multi-threaded performance for Rust’s simulation and entity processing, while the GPU’s massive compute resources render the game world at high frame rates.

To contextualize this rank, consider the CPU’s performance relative to its nearest rivals. The Intel Core Ultra 5 245 has an average benchmark score of 48995, which is only 0.4% below the AMD Ryzen 7 PRO 5755G (49196) and 0.5% below the AMD Ryzen 9 7900 (49228). It is 0.6% ahead of the Intel Xeon Gold 5318H (48698) and 0.8% ahead of the Intel Core i5-14600K (48618). This tight grouping means the CPU is not a weak link; it performs on par with other high-end desktop processors from both Intel and AMD. The fact that this combo still achieves a top-40 rank in Rust suggests that the RTX 5090 is doing the heavy lifting in terms of raw frame rates, but the CPU is not holding it back to any meaningful degree.

The GPU itself also ranks well in the broader database, sitting at the 92nd percentile of all GPUs with an average benchmark score of 79842. Its nearest rivals include the NVIDIA Tesla P100 PCIe 16 GB (79605, 0.3% lower), the Tesla P100 PCIe 12 GB (79396, 0.6% lower), and the AMD Radeon RX 6850M XT (78940, 1.1% lower). The only rival that scores higher is the AMD Radeon Pro Vega 64X at 80959, which is 1.4% above the RTX 5090. This places the GPU in elite company, and the measured Rust performance reflects that—at 1080p Low, the system hits 269 FPS, which is more than enough to drive any high-refresh-rate display.

GPU Role

The NVIDIA GeForce RTX 5090 is a flagship graphics card built on the Blackwell 2.0 architecture, and its specifications are staggering. It features 32 GB of GDDR7 memory on a 512-bit bus, delivering a bandwidth of 1.79 TB/s. The card has 21760 shading units, 680 texture mapping units, and 176 raster output units, along with 170 ray tracing cores and 680 tensor cores. Its base clock is 2017 MHz with a boost clock of 2407 MHz, and the memory runs at 1750 MHz (28 Gbps effective). This hardware translates to a pixel rate of 423.6 GPixel/s and a texture rate of 1,636.8 GTexel/s, with FP32 performance of 104.8 TFLOPS.

In Rust, the GPU’s role becomes more pronounced at higher resolutions and settings. The measured data shows that at 4K Ultra, the system only manages 57 FPS, which is a clear sign that even the RTX 5090 is being pushed to its limits by the game’s heavy rendering load. The 32 GB VRAM is more than sufficient for Rust’s textures and draw distances, but the raw compute required to render at 4K with Ultra settings is simply enormous. At 4K Medium, the card delivers 89 FPS, and at 4K Low, it jumps to 132 FPS—a 48% improvement over Medium, which highlights how much headroom the GPU has when settings are reduced.

The GPU’s memory bandwidth of 1.79 TB/s is particularly relevant for Rust, as the game often loads large environments with many entities. The 512-bit bus ensures that texture streaming and geometry data are fed to the rendering pipeline without stutter, which is reflected in the min FPS numbers at Medium settings: 76 FPS at 4K, 128 FPS at 1440p, and 186 FPS at 1080p. These minimums are only slightly below the averages, indicating consistent frame delivery. The RTX 5090’s 176 ROPs and 680 TMUs are also well-suited to Rust’s blend of indoor and outdoor scenes, where pixel fill rate and texture filtering are both critical.

FAQ

Q: What is the best resolution for this combo in Rust?

A: The data shows that 2560x1440 offers the best balance. At High settings, the system delivers 127 FPS, which is well above 60 FPS and suitable for high-refresh-rate monitors. At 4K, the average drops to 75 FPS on High, which is playable but not ideal for competitive play.

Q: How much FPS does the system lose when going from 1080p to 4K on High settings?

A: At 1920x1080 High, the average is 185 FPS. At 3840x2160 High, it falls to 75 FPS. This represents a 59.5% reduction in frame rate, which is a substantial drop but expected given the fourfold increase in pixel count.

Q: Is 32 GB of VRAM necessary for Rust?

A: The RTX 5090 comes with 32 GB of GDDR7 memory. For Rust, this is far more than required—the game’s largest textures and most complex scenes will not come close to exhausting this capacity. The benefit is future-proofing and headroom for other demanding titles.

Q: Does the CPU bottleneck the GPU at any resolution?

A: Yes, at 1080p. The gap between Low (269 FPS) and High (185 FPS) at 1920x1080 shows that the CPU is limiting the GPU’s output. At 4K, the GPU becomes the bottleneck, as evidenced by the smaller performance spread between settings.

Q: What is the minimum FPS at 4K Medium settings?

A: The measured data records a minimum FPS of 76 at 3840x2160 Medium, with an average of 89 FPS and a maximum of 102 FPS. This ensures that even in demanding scenes, frame rates stay above 60 FPS.

Q: How does this combo rank compared to all tested configurations in Rust?

A: It ranks 40th out of 2953 combos, placing it in the top 1.4% of all tested systems. This is an outstanding result, driven by the combination of the RTX 5090’s raw power and the Core Ultra 5 245’s strong single- and multi-threaded performance.

Settings Recommendations

Based on the measured FPS data, the optimal settings depend on the target resolution and refresh rate. For 1920x1080, the Medium preset is the sweet spot. It delivers an average of 219 FPS with a minimum of 186 FPS, which is more than enough for a 144Hz or even 240Hz monitor. The High preset at 1080p still manages 185 FPS, but the jump to Ultra drops to 140 FPS—still playable, but the performance cost of Ultra over High is not justified for a competitive survival game where frame rate consistency matters. Low settings at 1080p hit 269 FPS, but the visual degradation is severe, and the gain over Medium is only 50 FPS, which is less noticeable at such high frame rates.

For 2560x1440, the Medium preset again provides the best experience, with an average of 150 FPS and a minimum of 128 FPS. This allows for smooth gameplay on high-refresh-rate QHD monitors. High settings at 1440p drop to 127 FPS, which is still excellent, but the 23 FPS penalty is not worth the marginal visual improvements. Ultra at 1440p falls to 97 FPS, which is below the 100 FPS mark that many players target for fast-paced action. Low at 1440p hits 224 FPS, but as with 1080p, the visual trade-off is too steep.

At 3840x2160, the recommendations change. High settings yield 75 FPS, which is above 60 FPS and acceptable for immersive single-player or co-op play, but not ideal for competitive scenarios. Medium settings at 4K deliver 89 FPS, which is a better balance—the minimum of 76 FPS ensures that the game never stutters, and the 14 FPS gain over High is meaningful. Low settings at 4K reach 132 FPS, which is impressive for 4K, but again, the visual quality suffers significantly. Ultra at 4K is not recommended, as the 57 FPS average falls below the 60 FPS threshold and would result in noticeable hitches during intense moments. For most players, Medium at 4K or High at 1440p offers the best combination of visual fidelity and performance.

CPU Role

The Intel Core Ultra 5 245 is a 14-core, 14-thread processor based on the Arrow Lake architecture, built on a 3 nm process by TSMC. It has a base clock of 3.50 GHz and a boost clock of 5.10 GHz, with 24 MB of shared L3 cache. The CPU supports DDR5 memory in a dual-channel configuration with a bandwidth of 102.4 GB/s, and it has 20 PCIe Gen 5 lanes. In synthetic benchmarks, the CPU scores 32924 in Cinebench R23 multi-core and 4648 in single-core, placing it at the 90th percentile of all CPUs.

In Rust, the CPU’s role is critical because the game simulates a large, dynamic world with many entities, players, and environmental interactions. The 14 cores provide strong multi-threaded performance for these simulations, while the 5.10 GHz boost clock ensures that single-threaded tasks—such as physics calculations and game logic—are handled quickly. The benchmark data shows that at 1080p Low, the system hits 269 FPS, which is a clear indication that the CPU is keeping up with the GPU’s demands. However, the drop to 185 FPS at 1080p High suggests that the CPU’s performance is the limiting factor at lower resolutions, as the GPU could likely push higher frame rates if the processor were more powerful.

The CPU’s nearest rivals reinforce its position: it is only 0.4% slower than the AMD Ryzen 7 PRO 5755G and 0.5% slower than the AMD Ryzen 9 7900, while being 0.6% faster than the Intel Xeon Gold 5318H and 0.8% faster than the Intel Core i5-14600K. This means the Core Ultra 5 245 is not holding back the RTX 5090 in any meaningful way. The 65W TDP is also noteworthy, as it allows for efficient operation without requiring exotic cooling solutions. For Rust specifically, the CPU’s performance is sufficient to maintain high frame rates at 1440p and 4K, where the GPU becomes the primary bottleneck. The data confirms that this combo is well-balanced, with the CPU providing enough headroom to avoid severe frame rate drops in demanding scenes.