Rust

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

The AMD Ryzen 7 5700 is an 8-core, 16-thread processor built on the Zen 3 architecture (Cezanne codename) using a 7 nm process from TSMC. Its base clock is 3.70 GHz with a boost clock of 4.60 GHz, and it carries a 65 W TDP. The chip includes 16 MB of L3 cache, 512 KB of L2 per core, and 64 KB of L1 per core. Memory support is DDR4 over a dual-channel bus with a bandwidth of 51.2 GB/s, and the CPU exposes PCIe Gen 3 with 20 lanes.

For Rust, a survival game with heavy server-side simulation and large persistent worlds, the CPU's multithreading capacity matters substantially. The recorded benchmark data shows that the Ryzen 7 5700 produces strong multithreaded scores: Cinebench R23 multicore reaches 20655, Geekbench multicore hits 9959, and 3DMark max threads scores 6617. Single-thread performance is also relevant because Rust's game logic often relies on a few primary threads; the chip scores 2916 in Cinebench R23 single-core and 901 in 3DMark single-thread.

The CPU's percentile ranking versus all CPUs is 78, meaning it outperforms 78% of processors in the database's aggregate benchmarks. Its average benchmark score is 25517. The nearest rivals in the database are the Intel Xeon D-2752TER (avg score 25530, delta -0.1%), the AMD Ryzen 5 7640U (avg score 25485, delta 0.1%), the AMD Ryzen 5 6600H (avg score 25550, delta -0.1%), and the AMD Ryzen 7 5825U (avg score 25446, delta 0.3%). These deltas are all within 0.3%, indicating the Ryzen 7 5700 sits in a tight performance cluster. In Rust specifically, the CPU's 8 cores and 16 threads help maintain frame pacing in busy scenes, though the measured FPS data suggests the GPU becomes the dominant constraint at higher resolutions.

How This Combo Ranks

The combination of the AMD Ryzen 7 5700 and the AMD Radeon RX 6650 XT ranks 2438 out of 3723 tested combos in Rust. That places it in the 34.5th percentile of all combos recorded in the database for this game. Being below the median does not indicate a weak pairing; rather, Rust is a demanding title that stresses both components, and many of the tested combos above this one likely use higher-tier GPUs or newer CPUs.

The GPU's individual percentile versus all GPUs is 65, while the CPU's percentile is 78. The gap between these two values is informative: the CPU is relatively stronger than the GPU in the broader database, but in Rust the measured frame rates show that resolution scaling heavily impacts results. At 1080p Low, the combo achieves 143 FPS, which is a high frame rate, but at 4K Ultra it drops to 25 FPS. That drop is far larger than what CPU limitation alone would produce, indicating the RX 6650 XT is the limiting factor when resolution and settings increase.

Compared to the GPU's nearest rivals in the database (NVIDIA Tesla K40m with avg score 19885 and delta -0.6%, AMD FirePro D300 with 19637 and delta 0.7%, AMD FirePro W7000 with 19905 and delta -0.7%, and NVIDIA Quadro K5200 with 19602 and delta 0.8%), the RX 6650 XT's average benchmark score of 19765 places it in a narrow band. These rivals are not gaming-focused cards, so the comparison is more about raw compute than Rust-specific behavior. The combo rank of 2438 reflects the full system context, and the data shows that the pairing delivers playable frame rates at 1080p and 1440p with adjusted settings, while 4K requires Low settings to remain fluid.

Resolution Scaling

The measured FPS data reveals how the combo scales across resolutions. At 1080p Low, the average FPS is 143. Moving to 1440p Low drops that to 98 FPS, a reduction of 31.5%. At 4K Low, the average falls to 58 FPS, which is 59.4% lower than 1080p Low. This steep decline with resolution indicates that the GPU's pixel throughput becomes the bottleneck; the CPU has enough headroom to feed the GPU at lower resolutions, but the RX 6650 XT's 8 GB of GDDR6 memory and 128-bit bus cannot sustain high frame rates at 4K.

For High settings, the pattern is similar but compressed. At 1080p High, the average is 81 FPS. At 1440p High, it drops to 56 FPS (30.9% lower). At 4K High, it falls to 33 FPS (59.3% lower than 1080p High). The consistency of these percentage drops across Low and High presets confirms that resolution is the primary variable, not the preset. The Medium preset shows the same trend: 96 FPS at 1080p, 66 FPS at 1440p, and 39 FPS at 4K. The Ultra preset yields 62 FPS at 1080p, 42 FPS at 1440p, and 25 FPS at 4K.

The frame time data for Medium settings (the only preset with min and max FPS recorded) further illustrates the scaling. At 1080p Medium, the range is 82 to 110 FPS, a spread of 28 FPS. At 1440p Medium, the range is 56 to 76 FPS, also a 20 FPS spread. At 4K Medium, the range is 33 to 45 FPS, a 12 FPS spread. As resolution increases, the absolute frame rate drops and the variance narrows, which suggests the GPU is consistently saturated at higher resolutions rather than occasionally spiking.

The limiting component shifts with resolution. At 1080p Low with 143 FPS, the CPU's 8 cores and 16 threads are likely holding the frame rate near its practical ceiling for this game engine. At 4K Ultra with 25 FPS, the GPU is clearly the constraint, as the CPU could still process game logic at a much higher rate. The data supports the interpretation that Rust at 1080p is CPU-sensitive, while at 1440p and 4K the RX 6650 XT becomes the determining factor.

Measured FPS Breakdown

The database contains 12 measured FPS rows for this combo, covering four resolutions and four settings presets.

At 1920x1080, the results are as follows. Low settings produce an average of 143 FPS. Medium settings average 96 FPS with a minimum of 82 and a maximum of 110. High settings average 81 FPS. Ultra settings average 62 FPS. The progression from Low to Ultra shows a 56.6% reduction in average FPS, from 143 to 62. This is a wide spread, and it indicates that the GPU is capable of high frame rates when settings are reduced, but Ultra at 1080p still exceeds 60 FPS, which is a solid result for a game like Rust.

At 2560x1440, the measured averages are 98 FPS on Low, 66 FPS on Medium (min 56, max 76), 56 FPS on High, and 42 FPS on Ultra. The drop from Low to Ultra is 57.1%, closely matching the 1080p scaling pattern. The 1440p High result of 56 FPS is below the 60 FPS threshold that many players consider the minimum for smooth gameplay, while Medium at 66 FPS clears it. The Ultra preset at 42 FPS is playable but noticeably less fluid.

At 3840x2160, the averages are 58 FPS on Low, 39 FPS on Medium (min 33, max 45), 33 FPS on High, and 25 FPS on Ultra. The drop from Low to Ultra is 56.9%. Only the Low preset at 4K achieves an average above 60 FPS; Medium at 39 FPS and High at 33 FPS are below playable thresholds for most users in a fast-paced survival game. The 4K Ultra result of 25 FPS is marginal at best.

Across all resolutions, the Medium preset is the only one with min and max data. At 1080p Medium, the min of 82 FPS is still above the 60 FPS target. At 1440p Medium, the min of 56 FPS dips below it. At 4K Medium, the min of 33 FPS is well below. This suggests that even the Medium preset cannot maintain a consistent 60 FPS at 1440p and above, and users targeting 4K would need to rely on Low settings.

GPU Role

The AMD Radeon RX 6650 XT is built on the RDNA 2.0 architecture with the Navi 23 chip, manufactured on a 7 nm process from TSMC. It has 2048 shading units, 128 texture mapping units, and 64 ROPs, along with 32 ray tracing cores. The GPU's base clock is 2055 MHz, its game clock is 2410 MHz, and its boost clock reaches 2635 MHz. Memory runs at 2190 MHz with an effective 17.5 Gbps data rate, across an 8 GB GDDR6 pool on a 128-bit bus, yielding 280.3 GB/s of bandwidth.

The GPU's compute throughput is 10.79 TFLOPS for FP32 and 21.59 TFLOPS for FP16 (2:1 ratio). Its pixel rate is 168.6 GPixel/s and its texture rate is 337.3 GTexel/s. The TDP is 176 W, requiring a single 8-pin power connector and a suggested 450 W PSU. The card uses a PCIe 4.0 x8 interface and outputs via 1x HDMI 2.1 and 3x DisplayPort 1.4a.

In the database's GPU benchmarks, the RX 6650 XT scores 17166 in Passmark G3D, 10111 in Geekbench OpenCL, 81306 in Geekbench Vulkan, and 97969 in Geekbench Metal. Its average benchmark score is 19765, and its percentile versus all GPUs is 65. The nearest rivals are the NVIDIA Tesla K40m (avg 19885, delta -0.6%), AMD FirePro D300 (avg 19637, delta 0.7%), AMD FirePro W7000 (avg 19905, delta -0.7%), and NVIDIA Quadro K5200 (avg 19602, delta 0.8%). All these deltas are under 1%, meaning the RX 6650 XT sits in a very tight performance band relative to those workstation cards.

In Rust, the GPU's 8 GB memory capacity becomes a factor at 4K. Rust's large map textures and draw distances consume VRAM, and the measured 4K results show a severe drop versus 1440p. At 1080p, the GPU delivers 143 FPS on Low and 62 FPS on Ultra, which shows that the card has enough bandwidth for the game at that resolution. At 1440p, the High preset at 56 FPS is close to the edge of the card's capability. At 4K, even Low settings only reach 58 FPS, and Ultra drops to 25 FPS. The 128-bit memory bus and 280.3 GB/s bandwidth are the likely bottlenecks, as higher resolutions require more memory bandwidth per frame.

The GPU's 32 ray tracing cores are present, but Rust does not typically use ray tracing in its standard rendering path, so those cores have minimal impact on the measured results. The RDNA 2.0 architecture supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, which gives the game access to modern APIs. The recorded FPS data does not show any API-specific anomalies, so the GPU operates within expected parameters for this title.

Settings Recommendations

The measured rows provide a clear picture of which presets deliver the best experience at each resolution, based on average FPS and the min/max data available for Medium.

At 1920x1080, all four presets average above 60 FPS. Low hits 143 FPS, Medium hits 96 FPS, High hits 81 FPS, and Ultra hits 62 FPS. The Ultra preset at 62 FPS is barely above the 60 FPS threshold, and its average is only 23% lower than High. Given that Rust benefits from reduced visual clutter in competitive scenarios, the High preset at 81 FPS offers a better margin of safety while still looking strong. The Medium preset at 96 FPS provides even more headroom and is the best balance for users who prioritize frame rate stability. The min FPS of 82 on Medium confirms that the 1% lows stay well above 60 FPS.

At 2560x1440, the situation changes. Low averages 98 FPS, Medium averages 66 FPS, High averages 56 FPS, and Ultra averages 42 FPS. The High preset falls below 60 FPS, which is a meaningful drop for a survival game where quick reactions matter. Medium at 66 FPS clears the threshold, but its min FPS is 56, meaning there will be occasional dips below 60. Low at 98 FPS provides the most comfortable experience, and the visual trade-off is acceptable given the game's art style. For 1440p, the data supports Low as the most reliable preset, with Medium as a viable alternative if the user accepts occasional frame dips.

At 3840x2160, only Low averages above 60 FPS at 58 FPS, which is still below the 60 FPS line. Medium averages 39 FPS, High averages 33 FPS, and Ultra averages 25 FPS. None of these presets deliver a consistently smooth experience at 4K. The Low preset at 58 FPS is the only option that approaches playability, and even then, the absence of min/max data for Low means the frame variance is unknown. The Medium preset's min of 33 FPS shows that dips can be severe. For 4K, the recorded data suggests that users would need to rely on Low settings, and even then, the experience is borderline.

The overall recommendation based on the measured rows is to use the Medium preset at 1080p for the best combination of visual quality and frame rate stability, with the High preset as a strong alternative. At 1440p, Low is the safest choice, with Medium as a secondary option. At 4K, Low is the only preset that approaches a playable frame rate, and users should expect a compromised experience at that resolution with this combo.