Counter-Strike: Global Offensive

Counter-Strike: Global Offensive, a 2012 title, remains a benchmark staple because its engine scales so dramatically across hardware tiers. For the Intel Core i5-11400F paired with the NVIDIA GeForce RTX 3080, the measured data reveals a system that obliterates standard refresh rates, yet the pattern of frame rates across resolutions tells a nuanced story about where the bottleneck truly lies. This analysis examines the 12 measured data points, the ranking against 1,604 other combos, and what the numbers imply for competitive and high-fidelity play.

Resolution Scaling

The FPS drop from 1080p to 4K is steep but remains remarkably high in absolute terms. At Ultra settings, the average frame rate falls from 536.5 FPS at 1920x1080 to 369.9 FPS at 2560x1440, a decline of 166.6 FPS, and then further down to 216.9 FPS at 3840x2160. This represents a 59.6% reduction in frame rate from 1080p to 4K, which is substantial but still leaves the game playable at over 200 FPS on a 4K display. The scaling suggests that while the RTX 3080 is heavily utilized at higher resolutions, the CPU is still able to feed it adequately.

The data implies a shifting bottleneck. At 1080p Low, the system hits 854.9 FPS, which is so high that it almost certainly exceeds the CPU's ability to issue draw calls and process game logic; the frame rate is likely capped by the Core i5-11400F's single-thread performance. As resolution increases to 4K, the GPU's pixel-pushing workload grows, and the frame rate drops accordingly, indicating that the RTX 3080 becomes the limiting factor. The gap between Low and Ultra settings at 1080p is 318.4 FPS, but at 4K this gap narrows to 128.5 FPS, showing that the GPU is the primary constraint at higher resolutions. For a game as CPU-sensitive as CS:GO, this combo demonstrates that even a 6-core, 12-thread processor with a 4.40 GHz boost clock is sufficient to drive the RTX 3080 to extreme frame rates at 1080p, with the GPU taking over as the primary limiter only as pixel count rises.

Settings Recommendations

The measured rows show that the performance headroom is so vast that even the highest preset is unnecessary for most displays. At 2560x1440 Ultra, the average FPS is 369.9, which is well above any 144Hz monitor's capability. The data suggests that playing at Ultra settings at 1440p is the optimal choice for visual fidelity without sacrificing competitive responsiveness, as the frame rate remains in the high hundreds. However, for players using 240Hz or 360Hz monitors, the Medium preset at 1440p offers 502.3 FPS, a substantial increase over Ultra that could be beneficial for reducing input lag in fast-paced scenarios.

At 1080p, the situation becomes more about CPU limits than GPU capability. The Low preset yields 854.9 FPS, while Ultra yields 536.5 FPS. The 318.4 FPS difference between these two presets is significant, but both are far beyond the refresh rate of any consumer monitor. The data implies that at 1080p, the user can freely select Ultra settings without worrying about frame rate drops below 500 FPS. The medium preset at 1080p provides a balanced 725.9 FPS, which sits between the extremes. For a competitive shooter, the recommendation based on the measured rows is to prioritize resolution over settings: use 1440p Ultra for the best image quality, or 1080p Low only if chasing maximum frame rates for esports tournaments.

How This Combo Ranks

This combination of Intel Core i5-11400F and NVIDIA GeForce RTX 3080 ranks 517th out of 1,605 tested combos in Counter-Strike: Global Offensive, placing it in the top 32.2% of all systems tested. This rank is surprisingly modest for a GPU that sits in the 80th percentile against all GPUs, but it reflects the fact that CS:GO is highly CPU-bound, and the i5-11400F, while capable, is not a top-tier processor. The CPU's 75th percentile ranking against all CPUs indicates it is a solid mid-range part, but the data shows that many other combos achieve higher frame rates, likely due to faster single-thread performance or higher memory bandwidth.

The rank of 517 suggests that while the RTX 3080 is a powerful component, the overall system is not optimized for CS:GO's engine quirks. The nearest rivals for the CPU include the AMD Ryzen 7 5700U, which scores nearly identically in synthetic benchmarks, and the Intel Core i7-1260P, which is 0.2% slower. For the GPU, the AMD Radeon RX 7900 GRE is a close competitor, being 0.9% faster in average benchmark score. However, in this specific game, the combo's rank indicates that other pairings, perhaps with CPUs that have higher boost clocks or larger L3 caches, would yield better results. The data emphasizes that CS:GO rewards CPU speed more than GPU raw power, and the i5-11400F's 12 MB of shared L3 cache and 4.40 GHz boost clock are good but not exceptional.

FAQ

Q: Can this system run CS:GO at 4K with high refresh rates?

A: Yes. At 3840x2160 with High settings, the average FPS is 258.2, which is sufficient for a 240Hz monitor, though not for 360Hz displays. With Ultra settings, it drops to 216.9 FPS, still well above 144Hz.

Q: What is the fastest setting for maximum frame rate?

A: The Low preset at 1920x1080 yields the highest measured average FPS at 854.9. This is the only setting that breaks the 800 FPS barrier in the data.

Q: Is the RTX 3080 or the i5-11400F the bottleneck at 1080p?

A: The data indicates the CPU is the limiting factor at 1080p. The frame rate at Low (854.9 FPS) is likely near the CPU's maximum throughput, as increasing resolution to 1440p Low only drops the frame rate to 591.9 FPS, a 30.8% decrease, while the GPU workload increases by 78%.

Q: How does the GPU compare to its nearest rival in terms of raw performance?

A: The RTX 3080 has an average benchmark score of 35787, which is 0.2% lower than the AMD Radeon Pro Duo's score of 35860. It is 1% faster than the NVIDIA GeForce RTX 5070 Ti Mobile, which scores 35435.

Q: What is the ranking of this combo among all tested systems?

A: This combo ranks 517th out of 1,605 total tested combinations, meaning it performs better than roughly 68% of all systems in CS:GO, but it is not in the top tier due to the CPU's limitations.

Q: Does the CPU's synthetic benchmark score predict its gaming performance?

A: The CPU's Cinebench R23 multicore score is 14372, and its single-core score is 2029. In CS:GO, the single-core score is more relevant, and it helps explain why the frame rates are high but not record-breaking.

GPU Role

The NVIDIA GeForce RTX 3080 is built on the Ampere architecture with a GA102 chip, featuring 8,704 shading units and 96 ROPs. Its memory configuration includes 10 GB of GDDR6X on a 320-bit bus, providing a bandwidth of 760.3 GB/s. These specifications translate into a GPU that is far more powerful than CS:GO requires at any resolution. The GPU's base clock is 1440 MHz, with a boost clock of 1710 MHz, and its memory runs at 19 Gbps effective. The data shows that at 4K Ultra, the GPU is still pushing 216.9 FPS, which reflects its raw compute capacity.

The GPU's role in this combo becomes more pronounced as resolution increases. At 1080p, the RTX 3080 is often idle, waiting for the CPU to feed it data. At 4K, the GPU's 29.77 TFLOPS of FP32 performance is put to work, and the frame rate scales more predictably with settings. The VRAM usage is not a factor in CS:GO, as 10 GB is more than sufficient for a game from 2012. The GPU's 80th percentile ranking against all GPUs indicates it is a high-end part, but in CS:GO, its performance is capped by the CPU at lower resolutions. The measured data shows that the GPU's advantage over its nearest rivals, such as the AMD Radeon RX 7900 GRE which is 0.9% faster in benchmarks, is not fully realized in this title due to the CPU bottleneck.

CPU Role

The Intel Core i5-11400F is a 6-core, 12-thread processor based on the Rocket Lake architecture, fabricated on Intel's 14 nm process. Its base clock is 2.60 GHz, boosting up to 4.40 GHz, and it has 12 MB of shared L3 cache. The CPU's memory bandwidth is 51.2 GB/s, which is modest by modern standards but sufficient for CS:GO. The CPU's synthetic benchmarks show a single-core Cinebench R23 score of 2029, which is a key metric for CS:GO's performance, as the game is notoriously reliant on single-threaded performance.

The data shows that the CPU is the primary limiter at 1080p, where even with Low settings, the frame rate is 854.9 FPS. This suggests that the CPU's ability to process game logic and issue render commands is the bottleneck, not the GPU. The CPU's 75th percentile ranking against all CPUs indicates it is a solid mid-range part, but its nearest rivals, such as the AMD Ryzen 7 5700U which scores 0% difference in average benchmark, include mobile parts that have different power characteristics. The 6 cores and 12 threads are more than enough for CS:GO, which typically uses only a few threads, and the 4.40 GHz boost clock is what drives the high frame rates. However, the CPU's lack of integrated graphics and its 65 W TDP mean it is optimized for discrete GPU systems, which is the case here. The CPU's 12 MB L3 cache is shared across all cores, and while this is not as large as some competitors, it is sufficient for CS:GO's working set.

Measured FPS Breakdown

At 1920x1080, the measured average FPS ranges from 854.9 on Low to 536.5 on Ultra. The Medium preset sits at 725.9 FPS, and High at 630.7 FPS. The difference between Low and Ultra is 318.4 FPS, which is the largest spread across all resolutions, indicating that the CPU is the limiting factor and that settings have a moderate impact on frame rate.

At 2560x1440, the frame rates drop significantly. Low yields 591.9 FPS, Medium 502.3 FPS, High 433.5 FPS, and Ultra 369.9 FPS. The spread between Low and Ultra is 222.0 FPS, which is narrower than at 1080p, showing that the GPU is starting to become more involved. The transition from 1080p Low to 1440p Low results in a 263.0 FPS drop, which is a 30.8% reduction.

At 3840x2160, the frame rates are still high but show the GPU's workload. Low averages 345.4 FPS, Medium 295.4 FPS, High 258.2 FPS, and Ultra 216.9 FPS. The spread between Low and Ultra is 128.5 FPS, the smallest of all resolutions, confirming that the RTX 3080 is the bottleneck here. The drop from 1440p Ultra to 4K Ultra is 153.0 FPS, a 41.4% reduction. These numbers show a clear pattern: at 1080p, the CPU is the limiting factor, but as resolution increases, the GPU's role grows, and the frame rates become more dependent on the RTX 3080's pixel throughput.