Rust

The AMD Radeon RX 6600 XT paired with the Intel Core i5-9400 delivers a playable Rust experience, but the data shows that achieving smooth frame rates requires careful attention to both resolution and settings. At 1080p, the combination can push well past 100 FPS on low settings, but the survival title's demanding nature means that higher presets and resolutions will quickly tax the GPU. This is a combination that excels in esports-style responsiveness at 1080p but falls short of maintaining fluid frame rates at 4K.

FAQ

Q: What is the best performance the combo can achieve in Rust?

A: The highest average frame rate recorded across all measurements is 138 FPS, achieved at 1920x1080 resolution with Low settings. This is the only configuration in the data set that breaks the 120 FPS barrier, making it the clear choice for maximum responsiveness.

Q: Is the Core i5-9400 holding back the RX 6600 XT in Rust?

A: The benchmark data indicates that the limiting factor shifts with settings. At 1080p Low, the GPU is still the primary limiter, as the frame rate scales significantly with GPU load. However, the CPU's 6 cores and 6 threads provide a solid foundation, and the 9 MB of shared L3 cache helps ensure the GPU is not starved of data at lower resolutions.

Q: How does the RX 6600 XT compare to its closest rivals in raw GPU power?

A: The RX 6600 XT sits in the 70th percentile of all GPUs. The data shows it is essentially tied with the NVIDIA GeForce GTX 1630, which trails by only 0.7%, and the Intel Arc A350M, which is 0.8% ahead. The deltaPct values against the GTX 1630 and RTX 2080 SUPER show a margin of less than 1.1%, indicating a very tight grouping in average benchmark scores.

Q: What is a realistic frame rate expectation at 1440p?

A: The data shows a significant hit to frame rates when moving to 2560x1440. The best 1440p result is 95 FPS on Low settings, while High and Ultra presets yield 54 FPS and 41 FPS respectively. For a 60 FPS experience at this resolution, a player would need to use Low settings.

Q: The RX 6600 XT has 8 GB of VRAM. Is that enough for Rust at 4K?

A: The 8 GB of GDDR6 memory is not the primary limiting factor at 4K, as the GPU's compute power is what holds the average frame rates down to 24-56 FPS across the settings presets. The 256.0 GB/s bandwidth and 128-bit bus width are adequate for the game's needs, but the core performance dictates the results.

Q: What is the highest presets that delivers a playable frame rate at 1080p?

A: The data shows that High settings at 1920x1080 produces 78 FPS, which is a comfortable result for most players. Ultra settings drop to 59 FPS, which is still playable but might not be ideal for high refresh rate monitors. The Medium preset provides 92 FPS.

Settings Recommendations

The measured data supports a clear hierarchy of settings. For the best experience, High settings at 1080p offers a strong balance between visual quality and performance, delivering 78 FPS. This is a solid frame rate for a survival game where responsiveness matters. The Medium preset at 1080p yields 92 FPS, but the visual quality gain from High is often worth the 14 FPS trade-off.

If the player's priority is maximum frame rate for competitive play, Low settings at 1080p is the only option, delivering the maximum recorded 138 FPS. This is a significant 60 FPS improvement over High settings. For those with a 144Hz monitor, this is the only way to get near that refresh rate.

At 1440p, the situation is more demanding. The Low preset is the only one that provides a consistently high frame rate, hitting 95 FPS. The High and Medium presets fall to 54 FPS and 64 FPS, respectively, which are still playable but not ideal for fast-paced action. The Ultra preset at 41 FPS is not recommended.

At 4K, the data shows that even the Low preset only reaches 56 FPS and the High preset drops to 32 FPS. The Ultra preset's 24 FPS is a slideshow and should be avoided. The data suggests that 4K is not a viable resolution for this combination.

Resolution Scaling

The measured data reveals a clear pattern of performance scaling as resolution increases. From 1080p Low to 1440p Low, the frame rate drops from 138 FPS to 95 FPS, a decline of 31%. Moving from 1440p Low to 4K Low, the frame rate drops from 95 FPS to 56 FPS, a further 41% reduction. This scaling indicates that the GPU is the primary performance limiter, as the CPU is less stressed at higher resolutions.

The performance drop is more pronounced on the High settings. From 1080p High (78 FPS) to 1440p High (54 FPS) represents a 31% drop, and from 1440p High to 4K High (32 FPS) is a 41% drop. This is consistent with the GPU becoming the bottleneck at higher resolutions. The data indicates that the RX 6600 XT is well-suited for 1080p and 1440p gaming, but the 4K results show a steep decline in playability.

The frame rate scaling also shows that the CPU is not the primary bottleneck. The decrease in FPS from 1080p to 1440p and 4K is consistent with the GPU's rendering workload increasing, not the CPU's. The CPU's 6 cores and 6 threads are sufficient to keep up with the GPU at these resolutions.

Measured FPS Breakdown

1920x1080: The lowest resolution tested delivers the best performance. The Low preset achieves an average of 138 FPS. The Medium preset drops to 92 FPS, with a minimum of 78 FPS and a maximum of 106 FPS. High settings average 78 FPS, and the Ultra preset falls to 59 FPS. The jump from Low to Medium is a 46 FPS drop, which is a significant cost for visual fidelity.

2560x1440: At 1440p, the frame rate drops across all presets. Low settings average 95 FPS. Medium averages 64 FPS (min 54, max 73). High settings average 54 FPS, and Ultra drops to 41 FPS. This resolution still offers a playable experience on Low and Medium, making it a good option for users with 1440p monitors.

3840x2160: 4K is the most demanding, with the data showing the GPU is overworked. The Low preset averages 56 FPS. Medium averages 37 FPS (min 32, max 43). High averages 32 FPS, and Ultra plummets to 24 FPS. This resolution is not recommended for this combination.

The data shows a clear 4K is the least viable resolution. The 4K Low result of 56 FPS is the highest frame rate at this resolution, but it is still below the 60 FPS target that many players prefer. The High and Medium presets at 4K are playable only in the sense that they are above 30 FPS.

GPU Role

The AMD Radeon RX 6600 XT is the primary driver of performance in Rust, especially at higher resolutions. The GPU's 8 GB of GDDR6 memory is sufficient for the game's assets, and the 256.0 GB/s bandwidth on a 128-bit bus allows for smooth texture streaming. The 2048 shading units and 64 ROPs, running at 2589 MHz boost clock, are the main factors in the measured FPS counts.

The GPU's position in the 70th percentile of all GPUs is a good indicator of its relative power. The data shows it is competitive with the NVIDIA GeForce GTX 1630 (0.7% slower) and the Intel Arc A350M (0.8% faster). A notable comparison is with the NVIDIA GeForce RTX 2080 SUPER, which the RX 6600 XT leads by 1.1% in the average benchmark score. This indicates that the GPU is a strong contender for 1080p and 1440p gaming.

The VRAM capacity of 8 GB does not appear to be a bottleneck in the measured results, as the frame rates are more limited by the GPU's compute ability than by memory capacity. The 2048 shading units and the RDNA 2.0 architecture with 32 ray accelerators provide enough power for the game's rendering tasks. However, the GPU's 10.60 TFLOPS FP32 performance is the key metric, as Rust's rendering does not heavily use ray tracing.

CPU Role

The Intel Core i5-9400 provides a stable foundation for the RX 6600 XT. With 6 cores and 6 threads, it has enough processing power to feed the GPU at 1080p and 1440p, but it does not hold back the GPU at higher resolutions. The CPU's 2.90 GHz base clock and 4.10 GHz boost clock ensure that it can keep up with the game's physics and AI, but the data shows that the CPU is not the primary performance limiter.

The CPU's 9 MB of shared L3 cache is a significant factor in its performance. This cache is the largest of the three cache levels, and it helps improve the CPU's performance by reducing the need to access system memory. The 42.7 GB/s memory bandwidth, while not the fastest, is adequate for a game like Rust.

The data shows that the i5-9400's average benchmark score of 2254 places it in the 47th percentile of all CPUs. The nearest rivals are all within a 0.4% deltaPct range, including the Intel Core i7-1068NG7 (0.2% faster) and the AMD Ryzen 5 PRO 1500 (0.4% slower). This performance grouping indicates that the CPU is a solid, mid-range part that does not hold back the RX 6600 XT.

The CPU's performance in the measured FPS data is consistent with its capabilities. The frame rate drops from 1080p to 4K are primarily due to the GPU's workload, not the CPU's. The CPU's 6 threads are sufficient for Rust's multi-threaded tasks, and the data suggests that a more powerful CPU would not yield significantly higher frame rates at 1080p or 1440p. The CPU is a reliable partner for the GPU, providing a smooth experience in the game.