Rust

The AMD Ryzen 9 8945HX and NVIDIA GeForce RTX 4070 combo ranks in the 1547th position out of 2953 tested combinations in Rust, placing it in the lower-middle tier of the database. The data shows a system that is heavily GPU-limited at higher resolutions but reveals interesting CPU headroom at 1080p, making this pairing better suited for high-refresh 1080p gaming than for 4K. Below is a detailed breakdown of how these components interact with Rust's specific demands.

CPU Role — cores, clocks, and how they relate to this game's results

The AMD Ryzen 9 8945HX is a 16-core, 32-thread mobile processor from the 8000 series, built on the Zen 4 architecture with the Dragon Range codename. It operates with a base clock of 2.50 GHz and boosts up to 5.40 GHz, which is a substantial frequency range for a mobile part. The CPU has a 64 MB L3 cache and 1 MB of L2 cache per core, alongside 64 KB of L1 cache per core. This large L3 cache is particularly relevant for Rust, a survival game known for its heavy server-side simulation and large world data that benefits from fast cache access.

In the context of Rust's measured results, the CPU's influence is most visible at 1080p Low settings, where the system reaches 163 FPS average. This is the only configuration where the frame rate approaches the territory where CPU bottlenecks typically begin to manifest. The processor's multi-threaded capabilities are strong, with a Cinebench R23 multi-core score of 42713 and a single-core score of 6030. The single-core performance is crucial for Rust's main game thread, which handles player input, physics, and world interaction. The Passmark single-thread score of 3907 and the Cinebench R15 single-core score of 607 indicate that this CPU has the per-core strength needed to drive high frame rates when the GPU is not the limiting factor.

The CPU's 55 W TDP is notably low for a 16-core part, suggesting it is designed for high-efficiency mobile operation. Despite this, it achieves a 95th percentile ranking among all CPUs, with an average benchmark score of 76212. This places it nearly identical to the Intel Core Ultra 9 285HX, which scores 76155 with a delta of just 0.1 percent. The Ryzen 9 8945HX also edges out the AMD Ryzen 9 9950X3D by 0.6 percent, though it trails the AMD EPYC Embedded 8224P and AMD Ryzen Threadripper PRO 9945WX by 0.4 percent each. These rival comparisons show that the 8945HX is competitively positioned among top-tier processors, even if the measured Rust frame rates do not reflect this strength beyond 1080p.

The processor supports DDR5 memory with dual-channel configuration and a memory bandwidth of 83.2 GB/s. While memory bandwidth is not typically a bottleneck in Rust, the dual-channel DDR5 setup ensures adequate data throughput for the CPU's 32 threads. The integrated Radeon 610M graphics are present but not used in the measured benchmarks, as the discrete RTX 4070 handles all rendering tasks. The CPU's PCIe Gen 5 support with 28 lanes provides ample bandwidth for the GPU and storage devices.

FAQ — 4-6 Q&A pairs answerable from FACT PACK data

Q: How does the Ryzen 9 8945HX compare to its closest rival, the Intel Core Ultra 9 285HX?

A: The Ryzen 9 8945HX has an average benchmark score of 76212, which is 0.1 percent higher than the Intel Core Ultra 9 285HX's score of 76155. This effectively makes them performance equals in synthetic benchmarks, though the measured Rust results will depend on other system factors.

Q: What is the best resolution and settings combination for this system in Rust?

A: The data shows the highest average frame rate is achieved at 1920x1080 with Low settings, producing 163 FPS. For a balance of visual quality and performance, 2560x1440 with Low settings yields 112 FPS, while 1920x1080 with High settings delivers 92 FPS.

Q: Is the RTX 4070's 12 GB VRAM sufficient for Rust at 4K?

A: The 12 GB VRAM is adequate for Rust at 3840x2160, as the GPU is the bottleneck at that resolution. The system manages 38 FPS at 4K High and 66 FPS at 4K Low, indicating that VRAM capacity is not limiting the performance; rather, the raw GPU compute power is the constraint.

Q: How much performance drop occurs when moving from 1080p to 4K?

A: At High settings, the average frame rate drops from 92 FPS at 1920x1080 to 64 FPS at 2560x1440 and further to 38 FPS at 3840x2160. This represents a 58.7 percent reduction in FPS from 1080p to 4K, clearly demonstrating that the GPU is the limiting component at higher resolutions.

Q: What is the GPU's percentile ranking among all graphics cards?

A: The RTX 4070 holds an 81st percentile ranking among all GPUs, with an average benchmark score of 37648. It performs nearly identically to the NVIDIA Tesla P4 (0.1 percent difference) and the AMD Radeon RX Vega 56 (0.4 percent difference), while trailing the RTX 4080 Mobile by 1.3 percent.

Q: Does this system achieve playable frame rates at Ultra settings in Rust?

A: At Ultra settings, the system produces 70 FPS at 1080p, 48 FPS at 1440p, and 29 FPS at 4K. The 1080p result is playable, while the 1440p result is borderline and the 4K result falls below the common 30 FPS playability threshold.

Resolution Scaling — how FPS drops from 1080p to 4K and what it says about the limiting component

The measured FPS data across resolutions reveals a classic GPU-bound scaling pattern. At High settings, the average frame rate drops from 92 FPS at 1920x1080 to 64 FPS at 2560x1440, a 30.4 percent decrease. Moving to 3840x2160, the frame rate falls to 38 FPS, a further 40.6 percent decrease from 1440p. The total drop from 1080p to 4K is 58.7 percent, which is substantial but not as severe as a purely GPU-limited scenario would suggest.

The scaling pattern at Low settings is more revealing. At 1080p Low, the system hits 163 FPS, which drops to 112 FPS at 1440p and 66 FPS at 4K. The percentage drops are 31.3 percent from 1080p to 1440p and 41.1 percent from 1440p to 4K. The fact that Low settings at 4K still achieves 66 FPS indicates that the GPU has sufficient headroom at lower quality presets, and the CPU is capable of maintaining high frame rates when the GPU workload is reduced.

The Medium settings data includes minimum and maximum FPS figures, providing insight into frame time consistency. At 1080p Medium, the average is 109 FPS with a minimum of 93 FPS and maximum of 126 FPS, a spread of 33 FPS. At 1440p Medium, the average drops to 75 FPS with a range of 64 to 87 FPS. At 4K Medium, the average is 44 FPS with a range of 38 to 51 FPS. These ranges suggest that frame pacing remains relatively stable across resolutions, with the minimum FPS staying within 15-17 percent of the average.

The resolution scaling analysis points to the GPU as the primary limiting factor at 1440p and 4K, while the CPU shows its capability at 1080p. The Ryzen 9 8945HX's strong single-core performance, evidenced by its 6030 Cinebench R23 single-core score, allows it to push 163 FPS at 1080p Low, but the RTX 4070 cannot sustain that throughput as resolution increases. This is typical for a mobile GPU paired with a high-end mobile CPU, where the CPU is rarely the bottleneck in modern games.

How This Combo Ranks — use comboRankInGame vs other tested combos

This specific combination of the AMD Ryzen 9 8945HX and NVIDIA GeForce RTX 4070 ranks 1547th out of 2953 tested combos in Rust, placing it in the 47.6th percentile of all tested systems. This mid-pack ranking is somewhat surprising given the individual component strengths, but it reflects the reality that Rust's performance is heavily dependent on the GPU at higher resolutions.

The combo's rank indicates that there are 1406 tested combinations that perform better and 1546 that perform worse. This places it in the middle of the distribution, which is consistent with the RTX 4070's 81st percentile GPU ranking but lower than the CPU's 95th percentile ranking. The discrepancy suggests that the GPU is holding back the overall combo ranking, as the CPU has significant headroom that the GPU cannot utilize.

The CPU's nearest rivals in synthetic benchmarks all score within 0.6 percent of the 8945HX, meaning the processor is not the differentiator in this combo's ranking. Instead, the RTX 4070's position among GPUs, where it sits close to the RTX 4080 Mobile but below many desktop parts, determines where this combo lands. The 1547th rank out of 2953 combos is a reasonable outcome for a mobile GPU that is not top-tier, even when paired with an exceptional processor.

For context, the GPU's nearest rival, the RTX 4080 Mobile, scores 1.3 percent higher in synthetic benchmarks. If this combo had been tested with that GPU instead, it would likely rank higher, but the data available shows the RTX 4070 version sits in the middle of the field. The ranking also implies that many tested combos use desktop GPUs or higher-end mobile parts, which naturally push this combo down the list.

GPU Role — VRAM, clocks, and how they relate to this game's results

The NVIDIA GeForce RTX 4070 is a mobile GPU based on the AD104 chip with the Ada Lovelace architecture, manufactured on a 5 nm process with 35,800 million transistors on a 294 mm² die. It features 5888 shading units, 184 texture mapping units, and 64 raster output units, along with 46 ray tracing cores and 184 tensor cores. The GPU operates with a base clock of 1920 MHz and a boost clock of 2475 MHz, with memory running at 1313 MHz (21 Gbps effective) on a 192-bit bus.

The 12 GB of GDDR6X memory provides a bandwidth of 504.2 GB/s, which is more than sufficient for Rust's texture and world data requirements. The VRAM capacity is not a limiting factor in any of the measured configurations, as even at 4K Ultra settings, the GPU's compute throughput is the bottleneck rather than memory capacity. The GPU's pixel rate of 158.4 GPixel/s and texture rate of 455.4 GTexel/s are respectable for a mobile part, though they are not sufficient to maintain high frame rates at 4K.

The GPU's FP32 performance of 29.15 TFLOPS is the same as its FP16 performance (1:1 ratio), which is notable for a mobile GPU. The 200 W TDP indicates that this is a high-power mobile part, requiring a 550 W suggested PSU in desktop configurations, though in a mobile system the cooling solution determines sustained performance. The GPU supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, all of which are relevant for Rust's rendering API.

The RTX 4070's benchmark results show strong synthetic performance, with a Passmark G3D score of 26927 and a Geekbench Vulkan score of 174152. Its average benchmark score of 37648 places it in the 81st percentile among all GPUs. The nearest rivals include the Tesla P4 with a 0.1 percent difference, the Radeon RX Vega 56 with a 0.4 percent difference, and the RTX 4080 Mobile which scores 1.3 percent higher. These comparisons show that the RTX 4070 is a solid mid-range performer, but it cannot compete with higher-tier mobile GPUs or desktop parts.

Measured FPS Breakdown — resolution by resolution, settings by settings, exact numbers

The measured FPS data provides a comprehensive view of the system's performance across three resolutions and four settings presets. At 1920x1080, the system delivers its best results. Low settings produce an average of 163 FPS, which is the highest frame rate recorded for this combo. Medium settings average 109 FPS with a minimum of 93 FPS and maximum of 126 FPS. High settings average 92 FPS, and Ultra settings drop to 70 FPS. These numbers show that at 1080p, even the most demanding setting remains playable, and the system can easily drive high-refresh monitors at lower settings.

At 2560x1440, the performance scales down predictably. Low settings average 112 FPS, which is still excellent for competitive play. Medium settings average 75 FPS with a range of 64 to 87 FPS, providing a good balance of visual quality and smoothness. High settings average 64 FPS, and Ultra settings fall to 48 FPS. The 1440p results indicate that the system is capable of handling this resolution well, with only the Ultra preset dipping below the 60 FPS threshold.

At 3840x2160, the system struggles to maintain playable frame rates at higher settings. Low settings average 66 FPS, which is playable but not ideal. Medium settings average 44 FPS with a range of 38 to 51 FPS, which is borderline playable. High settings average 38 FPS, and Ultra settings drop to 29 FPS, which falls below the acceptable threshold for most players. The 4K results clearly show that this combo is not designed for native 4K gaming in Rust, with only the Low preset delivering a consistently playable experience.

The data for Medium settings at all three resolutions includes minimum and maximum FPS values, allowing for a closer look at frame time consistency. At 1080p, the spread from minimum to maximum is 33 FPS (93 to 126), which is acceptable. At 1440p, the spread is 23 FPS (64 to 87), showing better consistency. At 4K, the spread is 13 FPS (38 to 51), indicating that the frame times are more consistent at lower frame rates. This pattern suggests that the GPU is working harder at higher resolutions, resulting in more stable but lower overall performance.