Rust

The Intel Core Ultra 5 235 and AMD Radeon RX 6650 XT combination delivers a playable, though not exceptional, experience in Rust, with performance that scales predictably across resolutions and settings. The data indicates a system that is firmly GPU-limited at higher resolutions, while the CPU’s strong single-threaded capabilities become more relevant at 1080p. The measured frame rates show that this combo is best suited for 1080p and 1440p gaming, with 4K requiring significant compromises in visual quality to maintain acceptable performance.

CPU Role

The Intel Core Ultra 5 235 is a 14-core, 14-thread processor based on the Arrow Lake architecture, built on a 3 nm process by TSMC. Its base clock is 3.40 GHz, and it can boost up to 5.00 GHz, which is a substantial frequency range for handling both single-threaded and multi-threaded workloads. The processor features a 24 MB shared L3 cache, alongside a per-core L2 cache of 3 MB and 192 KB of L1 cache, providing a substantial amount of fast memory for game data. With a TDP of 65 W, the chip is designed for efficiency while maintaining high peak performance.

In Rust, the CPU’s role is significant due to the game’s simulation and physics calculations. The processor’s single-thread performance is a key factor, and benchmark results show a Cinebench R23 single-core score of 2085 and a multi-core score of 14769. This indicates a strong ability to handle the game’s main game logic thread, which is often a bottleneck in survival games. The PassMark single-thread score of 4516 further corroborates this, suggesting that the CPU can keep up with the game’s demands, especially at lower resolutions where the GPU is less stressed. The processor’s percentile rank of 89 among all CPUs shows it is a high-performing part, and its average benchmark score of 46062 places it in direct competition with the AMD Ryzen AI 9 HX 375, which scores 46030 (0.1% slower), and the Intel Core i9-13900HX, which scores 46098 (0.1% faster). This tight grouping indicates that the Core Ultra 5 235 is a top-tier performer for gaming, and its 14 cores provide ample headroom for background tasks and streaming.

The data from the measured FPS shows that at 1080p Low settings, the combo achieves 143 FPS average, which is likely approaching the CPU’s limit, as the GPU has less work to do. The CPU’s high boost clock of 5.00 GHz is crucial here, as it directly impacts the frame rate in scenarios where the game’s simulation is the limiting factor. However, the processor’s memory bandwidth of 102.4 GB/s over a dual-channel DDR5 bus is adequate but not exceptional, and it may become a minor constraint in complex scenes with many entities. The 14 threads are a mix of performance and efficiency cores, but the game’s engine typically scales well with a few fast cores, which this CPU provides in abundance. The lack of a dedicated multiplier unlock means overclocking is not an option, but the stock performance appears sufficient for a smooth experience at most settings.

GPU Role

The AMD Radeon RX 6650 XT is a RDNA 2.0 architecture GPU based on the Navi 23 chip, manufactured on a 7 nm process. It comes with 8 GB of GDDR6 memory on a 128-bit bus, providing a bandwidth of 280.3 GB/s. The GPU’s base clock is 2055 MHz, with a game clock of 2410 MHz and a boost clock of 2635 MHz, which are high frequencies for this class of card. The card features 2048 shading units, 128 texture mapping units, and 64 raster output units, along with 32 ray accelerators for hardware-accelerated ray tracing.

In Rust, the GPU’s role is to render the vast outdoor environments, which can be demanding on memory bandwidth and fill rate. The 8 GB VRAM is a critical factor, as Rust’s high-resolution textures and large draw distances can consume significant memory. The benchmark results show a PassMark G3D score of 17166, and the GPU’s percentile rank of 65 among all GPUs places it in the mid-to-upper tier. Its average benchmark score of 19765 is comparable to the NVIDIA Tesla K40m, which scores 19885 (0.6% faster), and the AMD FirePro D300, which scores 19637 (0.7% slower). This suggests the RX 6650 XT is a solid performer, but its nearest rivals are older workstation cards, indicating it is not a top-tier gaming GPU.

The measured FPS data reveals the GPU’s limitations at 4K. At 4K Ultra settings, the combo only manages 25 FPS average, which is unplayable, while at 4K High settings, it reaches 33 FPS. This indicates that the 8 GB VRAM buffer is likely being exceeded, causing significant performance drops. The GPU’s 128-bit memory bus is a bottleneck at higher resolutions, as the 280.3 GB/s bandwidth is insufficient to feed the shader units efficiently. The card’s FP32 performance of 10.79 TFLOPS is decent, but it is not enough to handle the pixel count at 4K with high fidelity. The GPU’s boost clock of 2635 MHz does help at lower resolutions, where the memory bandwidth is less of a constraint, allowing the card to achieve 143 FPS at 1080p Low, but this is the exception rather than the rule.

Resolution Scaling

The performance scaling across resolutions provides a clear picture of the system’s bottleneck. At 1080p, the combo shows strong performance, with a Low settings average of 143 FPS, Medium at 96 FPS, High at 81 FPS, and Ultra at 62 FPS. This scaling is relatively linear, indicating that the GPU is the primary limiter, but the CPU is able to feed it adequately. Moving to 1440p, the frame rates drop significantly: Low averages 98 FPS, Medium 66 FPS, High 56 FPS, and Ultra 42 FPS. This represents a 31% drop from 1080p to 1440p at Low settings (143 to 98 FPS), which is a substantial decrease, highlighting the GPU’s struggle with the increased pixel count.

The jump to 4K is where the system truly bottlenecks. At 4K, the Low setting average is 58 FPS, which is a 40% drop from 1440p Low (98 FPS). Medium at 4K averages 39 FPS, High at 33 FPS, and Ultra at 25 FPS. The drop from 1080p Low (143 FPS) to 4K Low (58 FPS) is a 59% reduction, demonstrating that the GPU is completely overwhelmed at this resolution. The data suggests that the CPU is not the limiting factor at 4K, as the GPU is unable to maintain high frame rates regardless of the CPU’s capabilities. The scaling from 1440p to 4K is steeper than from 1080p to 1440p, indicating that the GPU’s memory bandwidth and VRAM capacity are the critical constraints. At 1080p, the CPU’s strong single-thread performance (Cinebench R23 single-core score of 2085) allows for high frame rates, but as resolution increases, the GPU’s rendering load becomes the dominant factor, and the RX 6650 XT simply does not have the horsepower to maintain high FPS.

FAQ

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

A: The data shows that 1080p is the most viable resolution, with an average of 143 FPS at Low settings and 62 FPS at Ultra. 1440p is playable, with a 42 FPS average at Ultra, but 4K is only suitable for Low settings, which averages 58 FPS.

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

A: The Intel Core Ultra 5 235 has an average benchmark score of 46062, which is 0.1% faster than the AMD Ryzen AI 9 HX 375 (score 46030) and 0.1% slower than the Intel Core i9-13900HX (score 46098). It is 0.2% faster than both the AMD EPYC 4364P (score 45970) and the AMD EPYC 7303 (score 45960).

Q: Is the GPU’s 8 GB VRAM sufficient for Rust?

A: The measured results indicate that 8 GB is insufficient for high settings at 4K, where Ultra settings only achieve 25 FPS average. At 1080p and 1440p, the VRAM seems adequate, as frame rates are higher, but the performance drop at 4K suggests the memory buffer is a limiting factor.

Q: What is the GPU’s performance rank relative to other GPUs?

A: The AMD Radeon RX 6650 XT has a percentile rank of 65 among all GPUs. Its average benchmark score of 19765 is 0.6% slower than the NVIDIA Tesla K40m (score 19885) and 0.7% faster than the AMD FirePro D300 (score 19637).

Q: How much does the FPS drop from 1080p to 4K at Medium settings?

A: At Medium settings, the average FPS drops from 96 at 1080p to 66 at 1440p and then to 39 at 4K. This represents a 59% reduction from 1080p to 4K.

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

A: The data does not indicate a CPU bottleneck. At 1080p Low, the combo reaches 143 FPS, which is high, but the CPU’s single-thread score of 4516 in PassMark suggests it can handle higher frame rates. The consistent FPS drops at higher resolutions point to the GPU as the primary limiter.

How This Combo Ranks

The combination of the Intel Core Ultra 5 235 and AMD Radeon RX 6650 XT ranks 1897 out of 2953 tested combos in Rust. This places it in the lower half of all tested systems, which is a significant finding given the CPU’s high performance. The CPU’s percentile rank of 89 is impressive, but the GPU’s rank of 65 drags down the overall combo. The data suggests that the GPU is the primary bottleneck, preventing the system from achieving higher frame rates, especially at higher resolutions.

The rank of 1897 indicates that there are many other combinations that perform better in Rust. This is likely due to the GPU’s limitations at 4K, where the system struggles to maintain playable frame rates. The combo’s performance is more competitive at 1080p, where the 143 FPS average at Low settings is respectable, but the overall rank is pulled down by the 4K results. The CPU’s strong multi-threaded performance (Cinebench R23 multi-core score of 14769) does not translate to higher frame rates in Rust when the GPU is the limiting factor. The data shows that for a better ranking, a more powerful GPU would be necessary, as the CPU has ample headroom to support a faster graphics card. The combo’s position in the bottom third of the rankings is a clear verdict that the RX 6650 XT is not well-matched to the CPU for this specific game at higher resolutions.

Measured FPS Breakdown

The following table details the exact measured average frame rates for the Intel Core Ultra 5 235 and AMD Radeon RX 6650 XT combination in Rust:

| Resolution | Settings | Avg FPS | Min FPS | Max FPS |

|---|---|---|---|---|

| 1920x1080 | Low | 143 | - | - |

| 1920x1080 | Medium | 96 | 82 | 110 |

| 1920x1080 | High | 81 | - | - |

| 1920x1080 | Ultra | 62 | - | - |

| 2560x1440 | Low | 98 | - | - |

| 2560x1440 | Medium | 66 | 56 | 76 |

| 2560x1440 | High | 56 | - | - |

| 2560x1440 | Ultra | 42 | - | - |

| 3840x2160 | Low | 58 | - | - |

| 3840x2160 | Medium | 39 | 33 | 45 |

| 3840x2160 | High | 33 | - | - |

| 3840x2160 | Ultra | 25 | - | - |

The data shows a clear progression of performance degradation as resolution increases. At 1080p, the combo is capable of exceeding 60 FPS at all settings, with a peak of 143 FPS at Low. The Medium setting provides a good balance with 96 FPS average and a minimum of 82 FPS, ensuring smooth gameplay. Moving to 1440p, the system still maintains playable frame rates, with Low at 98 FPS and Ultra at 42 FPS. However, the minimum FPS at Medium (56 FPS) indicates potential stutter in demanding scenes. At 4K, the system struggles, with only Low settings achieving a playable 58 FPS average. The Ultra setting at 4K is unplayable at 25 FPS average. The Medium setting at 4K shows a minimum of 33 FPS, which is below the threshold for smooth gameplay. These numbers confirm that the RX 6650 XT is the limiting component, and the combo is best utilized at 1080p or 1440p for a consistent experience.

The High setting at 1080p (81 FPS average) is a notable point, as it shows a significant drop from Medium (96 FPS), indicating a jump in GPU workload. The Ultra setting at 1440p (42 FPS) is also a clear indicator that this combo is not suited for maxed-out settings at higher resolutions. The minimum FPS values for Medium settings across all resolutions provide insight into worst-case scenarios, with 82 FPS at 1080p, 56 FPS at 1440p, and 33 FPS at 4K. These figures highlight the system’s instability at higher resolutions, where frame time spikes are more likely. Overall, the measured FPS breakdown provides a comprehensive view of the combo’s capabilities, showing that it is a capable 1080p machine but falls short at 4K.