Counter-Strike 2

Counter-Strike 2 with an Intel Core i5-9400 and Intel Arc B580 presents a classic pairing: a six-core Coffee Lake CPU from 2018 driving a modern Battlemage GPU. The measured data shows a system that is heavily CPU-bound at lower resolutions, with the GPU taking over as the primary limiter only at 4K with high preset settings. This combination delivers high frame rates, but the bottlenecks shift dramatically depending on where you set the resolution and quality sliders.

Resolution Scaling

The FPS drop from 1080p to 4K is steep, but the shape of that curve tells you exactly where the bottleneck lives. At Low settings, the average frame rate falls from 308.8 FPS at 1920x1080 to 203.7 FPS at 2560x1440, a reduction of roughly 34%. Pushing to 3840x2160 drops the average further to 115.8 FPS. That is a 63% reduction from 1080p to 4K, which indicates the GPU is starting to work harder, but the CPU is still keeping pace.

The story changes completely at High settings. The 1080p average is 192.3 FPS, which drops to 126.9 FPS at 1440p and then to 69.8 FPS at 4K. The 4K figure is less than half of the 1080p number. This steep decline shows that the Intel Arc B580 is becoming the limiting factor at higher resolutions, as the pixel fill rate and shading demands outpace what the CPU can feed. The i5-9400’s six cores and six threads are sufficient to push high frame rates at 1080p, but at 4K, the GPU’s workload dominates.

Looking at the Ultra preset, the pattern is even more pronounced. The 1080p average of 147.1 FPS falls to 97.7 FPS at 1440p and then to 54.3 FPS at 4K. The 4K Ultra result is the lowest in the entire measured set, confirming that this pairing is not designed for maximum fidelity at 4K. The data suggests that the sweet spot for this combo is 1080p or 1440p, where the CPU can keep the GPU fed and the frame rates remain competitive.

Settings Recommendations

The measured rows show a clear hierarchy across the four presets—Low, Medium, High, and Ultra—at each resolution. For competitive play, Low is the obvious choice. At 1080p, Low delivers 308.8 FPS, which is 50 FPS higher than Medium and over 160 FPS higher than Ultra. Even at 1440p, Low maintains 203.7 FPS, a figure that exceeds the High preset at 1080p. If you are chasing maximum refresh rates, Low is the only setting that consistently stays above 200 FPS at both 1080p and 1440p.

For a balance of visual quality and performance, Medium is the pragmatic pick. At 1080p, Medium averages 258.6 FPS, which is still well above the 144Hz threshold. At 1440p, Medium holds 170.7 FPS, which is a 35% improvement over High at the same resolution. The jump from Medium to High costs you 66 FPS at 1080p and 44 FPS at 1440p, a significant penalty for marginal visual gains in a fast-paced FPS.

High settings are only advisable if you are locked to a 1440p monitor and want better visuals, as the 126.9 FPS average at that resolution is still playable. Ultra should be avoided unless you are at 1080p and have a 120Hz panel, as the 147.1 FPS average is the only Ultra result that clears 100 FPS. At 4K, Ultra drops to 54.3 FPS, which is below the 60 FPS target for smooth gameplay. The data recommends Medium as the default preset, with Low reserved for esports-level frame rates.

CPU Role

The Intel Core i5-9400 is a six-core, six-thread processor based on the Coffee Lake architecture, running at a 2.90 GHz base clock and a 4.10 GHz boost clock. It has 9 MB of shared L3 cache and supports DDR4 memory in a dual-channel configuration. The benchmark results show a Cinebench R23 multi-core score of 7969 and a single-core score of 1125, placing it at the 50th percentile among all CPUs.

In Counter-Strike 2, the CPU’s role is most evident at 1080p with Low settings. The 308.8 FPS average at that preset suggests the i5-9400 is capable of feeding the Arc B580 with enough draw calls to saturate the GPU. However, the data also shows that the CPU is not the primary limiter at 4K, where even the Low preset only reaches 115.8 FPS. That figure is lower than the 1440p Low result of 203.7 FPS, indicating that the GPU’s rasterization and shading throughput is the constraint at higher resolutions.

The CPU’s single-threaded performance is adequate for this title, but the six-thread limit means that background tasks or heavy scene complexity could cause dips. The nearest rivals in the CPU benchmark data include the Intel Core i3-10305, which scores 2300 versus the i5-9400’s 2305 average, a delta of just 0.2%. This indicates that the i5-9400 sits in a crowded performance tier, and the game’s frame rates are unlikely to change dramatically with a similar-tier CPU swap.

How This Combo Ranks

In the database of tested combinations for Counter-Strike 2, this pairing of the Intel Core i5-9400 and Intel Arc B580 ranks at 1257 out of 1632 combos. That places it in the lower third of all tested systems, which is a surprising result given the high frame rates measured in the individual tests. The rank likely reflects the overall average across all resolutions and presets, including the 4K Ultra result of 54.3 FPS, which drags down the aggregate.

The combo rank of 1257 out of 1632 means that about 23% of tested systems perform worse, while 77% perform better. This is not a top-tier pairing for Counter-Strike 2, but the data shows it is far from a failure. The high 1080p numbers are competitive, but the 4K results are below average for the database. The Arc B580’s nearest rival, the NVIDIA GeForce RTX 4060, has an average benchmark score of 23181 versus the B580’s 23021, a delta of -0.7%, meaning the B580 is slightly slower in synthetic tests but still within a small margin.

The CPU’s rank is more favorable. At the 50th percentile among all CPUs, the i5-9400 is a mid-pack processor. The combination of a mid-pack CPU and a GPU that sits at the 66th percentile among GPUs produces a system that is adequate for 1080p and 1440p gaming but struggles at 4K. If you are building for high-refresh-rate esports, this combo delivers; if you are targeting 4K, the data suggests looking elsewhere.

FAQ

Q: What is the best resolution for this CPU and GPU combo in Counter-Strike 2?

A: The measured data shows 1920x1080 as the strongest resolution, with an average of 308.8 FPS at Low settings. At 2560x1440, the Low preset still delivers 203.7 FPS, making it a viable option for higher-resolution monitors.

Q: Can this combo handle 4K gaming?

A: Yes, but with compromises. At 4K with High settings, the average FPS is 69.8, which is playable but not smooth for competitive play. The Ultra preset at 4K drops to 54.3 FPS, which is below the 60 FPS target.

Q: Which preset should I use for competitive play?

A: Low settings provide the highest frame rates across all resolutions. At 1080p, Low averages 308.8 FPS, and at 1440p, it averages 203.7 FPS. Medium is a reasonable alternative if you want better visuals, with 258.6 FPS at 1080p.

Q: How does the Intel Arc B580 compare to its nearest rival in synthetic benchmarks?

A: The Arc B580 has an average benchmark score of 23021, while the NVIDIA GeForce RTX 4060 scores 23181, a delta of -0.7%. The AMD Radeon 760M scores 22999, a delta of 0.1%, meaning the B580 is nearly identical to that integrated solution in average score.

Q: Is the Intel Core i5-9400 a bottleneck for the Arc B580?

A: At 1080p, the CPU is not the primary limiter, as shown by the 308.8 FPS Low result. At 4K, the GPU becomes the bottleneck, with the Low preset only reaching 115.8 FPS, so the CPU is sufficient for this pairing.

Q: How does this combo rank against other tested systems?

A: It ranks 1257 out of 1632 combos tested in Counter-Strike 2. This places it in the lower portion of the database, but the individual resolution tests show strong 1080p and 1440p performance.

Measured FPS Breakdown

At 1920x1080, the system delivers its best results. The Low preset averages 308.8 FPS, which is the highest measured value across all tests. Medium follows at 258.6 FPS, then High at 192.3 FPS, and Ultra at 147.1 FPS. The gap between Low and Medium is 50.2 FPS, while the gap between High and Ultra is 45.2 FPS, showing diminishing returns as you increase quality.

Moving to 2560x1440, the averages drop but remain strong. Low is 203.7 FPS, Medium is 170.7 FPS, High is 126.9 FPS, and Ultra is 97.7 FPS. The 1440p Low result is higher than the 1080p High result, indicating that resolution scaling is more forgiving than preset scaling for this combo.

At 3840x2160, the performance falls significantly. Low averages 115.8 FPS, Medium averages 97.6 FPS, High averages 69.8 FPS, and Ultra averages 54.3 FPS. The 4K results are the only ones that dip below the 100 FPS mark for Low and Medium, and the Ultra preset is the only measured test that falls below 60 FPS. The data suggests that 4K is only viable with Low or Medium settings for a playable experience.