Rust

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

The Intel Core i7-12700K is a 12-core, 20-thread processor built on the Alder Lake architecture, with a base clock of 3.60 GHz and a boost clock of 5.00 GHz. Its cache hierarchy includes 80 KB of L1 per core, 1.25 MB of L2 per core, and a shared 25 MB L3 cache. The CPU supports both DDR4 and DDR5 memory in a dual-channel configuration, and it uses the Intel Socket 1700 platform.

In synthetic benchmarks, the i7-12700K demonstrates strong multi-threaded capabilities. Its Cinebench R23 multi-core score of 19,784 points and single-core score of 1,850.5 points show a balanced profile. The Geekbench results reinforce this, with a multi-core score of 15,790 and a single-core score of 2,308. PassMark data further illustrates the processor's throughput: integer math scores 114,264, floating-point math scores 88,035, and data compression scores 446,595.

The processor's percentile ranking places it at 84 out of 100 when compared against all CPUs in the database. Its average benchmark score of 35,287 is nearly identical to its nearest rivals: the Intel Core i5-13600T scores 35,305 (a delta of -0.1%), the Core i7-12700KF scores 35,365 (-0.2%), the Core i7-13700T scores 35,403 (-0.3%), and the Core 5 213PE scores 35,428 (-0.4%). This indicates that the 12700K sits in a tightly contested performance tier where the differences are negligible.

For Rust, a survival game that frequently demands heavy CPU work for world simulation, base-building logic, and entity tracking, the 12700K's 12 cores and 20 threads provide ample headroom. The high boost clock of 5.00 GHz also helps single-threaded tasks, which are critical for game logic that cannot be fully parallelized. In the measured results, the combination of this CPU with the RTX 5080 yields a 1080p Low average of 235 FPS, which suggests that the processor is not the primary limiter at lower settings where the GPU has less work per frame.

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

The NVIDIA GeForce RTX 5080 is built on the Blackwell 2.0 architecture using a 5 nm process from TSMC. It features 16 GB of GDDR7 memory on a 256-bit bus, delivering a memory bandwidth of 960.0 GB/s. The GPU has 10,752 shading units, 336 texture mapping units, and 112 render output units, along with 84 ray tracing cores and 336 tensor cores. Its base clock is 2,295 MHz with a boost clock of 2,617 MHz, and the memory runs at 1,875 MHz (30 Gbps effective).

The RTX 5080's raw compute figures are substantial: FP32 performance is 56.28 TFLOPS, with matching FP16 throughput at a 1:1 ratio. The pixel rate is 293.1 GPixel/s and the texture rate is 879.3 GTexel/s. In synthetic benchmarks, the GPU scores 8,637 in 3DMark Steel Nomad (DX12), 255,450 in Geekbench Vulkan, and 235,901 in Geekbench OpenCL. Its PassMark G3D score is 36,565, with a GPU compute score of 21,789.

The GPU's percentile ranking is 87 out of 100 against all GPUs in the database, with an average benchmark score of 56,083. Its nearest rivals include the AMD Radeon 8060S (score 55,757, delta 0.6%), the AMD Radeon RX 6750 GRE 12 GB (55,698, delta 0.7%), the AMD Radeon Pro W5700X (54,828, delta 2.3%), and the AMD Radeon RX 9070 GRE (57,367, delta -2.2%). The last entry shows the RTX 5080 trailing the RX 9070 GRE by 2.2%, but leading the other three by less than 1%.

For Rust, the 16 GB VRAM capacity is more than sufficient for the game's texture and asset streaming requirements, even at Ultra settings. The high memory bandwidth of 960.0 GB/s ensures that large texture sets and draw calls are processed without bottlenecks. The measured data shows that at 1080p Ultra, the combo achieves 129 FPS average, while at 4K Ultra it drops to 52 FPS, indicating that the GPU is increasingly stressed as resolution scales and shader complexity rises.

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

Examining the measured FPS across resolutions reveals a clear scaling pattern. At 1080p Low, the combo delivers 235 FPS average. Moving to 1440p Low, the average drops to 205 FPS, and at 4K Low it falls to 121 FPS. This represents a 12.8% drop from 1080p to 1440p, and a further 41% drop from 1440p to 4K. The relatively modest decline from 1080p to 1440p suggests that the CPU is still able to feed frames adequately, but the GPU is beginning to work harder.

At Medium settings, the pattern shifts. The 1080p Medium average is 200 FPS, with a minimum of 170 and maximum of 230. At 1440p Medium, the average is 138 FPS (min 117, max 158), and at 4K Medium it is 81 FPS (min 69, max 94). The drop from 1080p to 1440p is 31%, and from 1440p to 4K is 41.3%. This steeper decline indicates that the GPU is becoming the primary limiting factor as resolution increases, since the pixel count quadruples from 1080p to 4K.

High settings show a similar trend. The 1080p High average is 169 FPS, 1440p High is 116 FPS (a 31.4% drop), and 4K High is 69 FPS (a 40.5% drop from 1440p). Ultra settings exhibit the most pronounced scaling: 1080p Ultra averages 129 FPS, 1440p Ultra drops to 88 FPS (-31.8%), and 4K Ultra bottoms out at 52 FPS (-40.9% from 1440p).

The data indicates that at 1080p and even 1440p, the i7-12700K is capable of keeping up with the RTX 5080 across most settings, as the FPS remains high and the resolution scaling is roughly proportional. However, at 4K, the GPU workload becomes so heavy that the average FPS drops below the 60 FPS threshold at High and Ultra settings. This suggests that for 4K gaming, the RTX 5080—while powerful—still requires settings reductions to maintain smooth gameplay, and the CPU is not the bottleneck at that resolution.

How This Combo Ranks — use comboRankInGame vs other tested combos

The combination of the Intel Core i7-12700K and NVIDIA GeForce RTX 5080 ranks 158th out of 3,723 tested combos in Rust. This places it in the top 4.2% of all combinations in the database. The high rank reflects the balanced strength of both components: the CPU's strong single-thread performance and the GPU's high-end rasterization capabilities.

Given that the RTX 5080 alone ranks in the 87th percentile among all GPUs, and the i7-12700K ranks in the 84th percentile among all CPUs, the combo rank of 158 out of 3,723 is consistent with both components being well above average. However, the rank is not higher (i.e., not in the top 100) because there are combinations with newer or more powerful CPUs that can push frame rates even higher in CPU-bound scenarios, particularly at 1080p Low where the 235 FPS result is likely limited by the processor's ability to feed the GPU.

The data suggests that this combo is exceptionally well-suited for high-refresh-rate gaming at 1440p, where it achieves 205 FPS at Low and 116 FPS at High. At 4K, the combo still delivers playable results at Medium (81 FPS) and High (69 FPS), but falls below 60 FPS at Ultra (52 FPS). The combo's rank indicates that it outperforms the vast majority of tested systems in Rust, making it a top-tier pairing for this title.

Settings Recommendations — which preset gives the best experience per the measured rows

Based on the measured FPS data, the optimal settings depend on the target resolution and desired frame rate.

At 1080p, the Low preset yields 235 FPS average, which is far beyond what most monitors can display (typically 144 Hz or 240 Hz). The Medium preset delivers 200 FPS average with a minimum of 170 FPS, still well above 144 Hz. High settings produce 169 FPS average, which is also sufficient for high-refresh displays. Ultra settings drop to 129 FPS average, which is still playable but may not saturate a 240 Hz monitor. For 1080p, the High preset offers a strong balance of visual quality and performance, as it maintains well over 144 FPS while providing better graphical fidelity than Medium.

At 1440p, the Low preset achieves 205 FPS, Medium reaches 138 FPS, High hits 116 FPS, and Ultra falls to 88 FPS. For 1440p gaming at 144 Hz, the Medium preset (138 FPS) is the best choice, as it sits just below the 144 FPS target and offers improved visuals over Low. The High preset at 116 FPS is still smooth for 120 Hz displays, but Medium provides the higher frame rate with only a modest visual sacrifice.

At 4K, the situation is more constrained. The Low preset delivers 121 FPS, which is excellent for 4K gaming. Medium achieves 81 FPS, which is above the 60 FPS standard for most 4K displays. High drops to 69 FPS, still playable but with less headroom. Ultra falls to 52 FPS, which is below 60 FPS and may result in noticeable stutter on standard 60 Hz displays. For 4K, the Medium preset is recommended as the best compromise, offering 81 FPS average with a minimum of 69 FPS, ensuring smooth gameplay without the visual downgrade of Low.

FAQ

Q: What is the average FPS at 1080p with High settings for this combo?

A: The measured average FPS at 1080p High is 169 FPS.

Q: How does the combo perform at 4K Ultra settings?

A: At 4K Ultra, the average FPS is 52, which is below the 60 FPS threshold commonly desired for smooth gameplay.

Q: What is the best settings preset for 1440p gaming at 144 Hz?

A: The Medium preset at 1440p delivers 138 FPS average (117 min, 158 max), which is the closest to the 144 Hz target while maintaining good visuals.

Q: Does the CPU bottleneck the GPU at 1080p Low?

A: At 1080p Low, the combo achieves 235 FPS, which is extremely high. The data suggests the CPU is likely the limiting factor at this setting, as the GPU has less work per frame.

Q: What is the FPS drop from 1080p to 4K at High settings?

A: At High settings, the average FPS drops from 169 at 1080p to 69 at 4K, a reduction of 100 FPS (59.2%).

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

A: This combo ranks 158th out of 3,723 tested combos, placing it in the top 4.2% of all systems.

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

1920x1080 (1080p)

• Low: Average 235 FPS. This is the highest recorded average across all settings and resolutions, indicating that the combo is heavily CPU-limited at this configuration.
• Medium: Average 200 FPS, with a minimum of 170 FPS and a maximum of 230 FPS. The tight min-max range suggests consistent frame pacing.
• High: Average 169 FPS. This represents a 15.5% drop from Medium, showing the impact of increased shading and texture work.
• Ultra: Average 129 FPS. The drop from High to Ultra is 23.7%, reflecting the significant additional GPU load from Ultra-quality effects.

2560x1440 (1440p)

• Low: Average 205 FPS. The 12.8% drop from 1080p Low indicates that the GPU is starting to take on more work, but the CPU still provides ample headroom.
• Medium: Average 138 FPS, with a minimum of 117 FPS and a maximum of 158 FPS. This is a 31% drop from 1080p Medium, showing the expected scaling with pixel count.
• High: Average 116 FPS. The drop from Medium to High is 15.9%, similar to the 1080p pattern.
• Ultra: Average 88 FPS. The drop from High to Ultra is 24.1%, consistent with the 1080p Ultra penalty.

3840x2160 (4K)

• Low: Average 121 FPS. This is a 41% drop from 1440p Low, demonstrating the massive pixel increase at 4K.
• Medium: Average 81 FPS, with a minimum of 69 FPS and a maximum of 94 FPS. This is the only 4K setting with recorded min/max values, showing a 25 FPS range.
• High: Average 69 FPS. The drop from Medium to High is 14.8%, a smaller penalty than at lower resolutions, indicating the GPU is already heavily loaded.
• Ultra: Average 52 FPS. This is the lowest recorded average, representing a 24.6% drop from High and falling below the 60 FPS target.

The data shows that at 1080p and 1440p, the combo can easily handle even Ultra settings for high-refresh-rate displays. At 4K, Medium settings (81 FPS) provide the best balance, while High (69 FPS) remains playable and Ultra (52 FPS) requires a tolerance for sub-60 FPS gameplay.