Counter-Strike: Global Offensive

Counter-Strike: Global Offensive with an AMD Ryzen 9 5900X and an Intel Arc B390 presents a fascinating study in system bottlenecking. The measured data shows a configuration where a high-end 12-core processor is paired with an entry-level integrated GPU, creating a stark imbalance that dictates performance across all tested resolutions and settings. The benchmark results reveal a system whose frame rates are overwhelmingly constrained by the graphics solution, while the CPU operates well within its substantial capabilities.

Resolution Scaling

The FPS drops from 1080p to 4K are dramatic and tell a clear story about which component is the limiting factor. At the High preset, the average frame rate falls from 223 FPS at 1920x1080 to 154 FPS at 2560x1440, and finally to 91 FPS at 3840x2160. This represents a 32% performance reduction when moving from 1080p to 1440p, followed by another 41% drop when jumping to 4K. Such steep declines with increasing resolution are the classic signature of a GPU-bound scenario, as the Arc B390 struggles to fill the exponentially larger pixel counts.

The Low preset shows an even more pronounced scaling curve, with averages of 303 FPS at 1080p, 208 FPS at 1440p, and 123 FPS at 4K. The absolute deltas here are larger (a 95 FPS drop from 1080p to 1440p, and an 85 FPS drop from 1440p to 4K), but the percentage drops are comparable. This pattern indicates that even at the lowest graphical settings, the GPU is still the primary bottleneck; otherwise, the frame rate would plateau as the CPU reached its maximum output. The fact that performance continues to plummet with resolution, even on Low, confirms the Arc B390 is saturated well before the Ryzen 9 5900X can be challenged.

At the Medium preset, the data provides minimum and maximum FPS values, offering a glimpse into frame pacing. At 4K, the average is 105 FPS with a minimum of 89 and a maximum of 120, a spread of 31 FPS. At 1440p, the average jumps to 177 FPS with a minimum of 151 and maximum of 204, a spread of 53 FPS. This widening variance at lower resolutions suggests that while the GPU is still the main constraint, the CPU begins to have a more noticeable influence on frame time consistency. The 1080p Medium results (258 average, 219 min, 296 max) show even greater variance, hinting that the CPU is starting to contribute to the frame rate ceiling.

The scaling behavior implies that for this combo, resolution is the single most important performance lever. The data shows that the Ryzen 9 5900X, with its 12 cores and 24 threads, is more than capable of feeding frames at 1080p, but the Arc B390 cannot translate that into higher FPS as pixel count increases. The bottleneck is unambiguous: the GPU's rendering throughput is the wall that limits performance at every resolution tested.

CPU Role

The Ryzen 9 5900X is a desktop-class processor based on the Zen 3 architecture, codenamed Vermeer, built on a 7 nm process. It features 12 cores and 24 threads, with a base clock of 3.70 GHz and a boost clock of 4.80 GHz. Its cache hierarchy includes 64 KB of L1 and 512 KB of L2 per core, plus a substantial 64 MB of shared L3 cache. This CPU's benchmark scores are impressive, with a Cinebench R23 multicore score of 16262 and a single-core score of 1527, placing it in the 87th percentile of all CPUs.

In the context of CS:GO, a game that is traditionally sensitive to single-thread performance, the 5900X's capabilities are far beyond what is needed. The benchmark data supports this, as the CPU's role is to feed frames to the GPU as fast as possible. With a PassMark single-thread score of 3469 and a Geekbench single-core score of 2083, the processor has ample headroom. The measured FPS at 1080p Low (303 FPS) is likely close to the practical limit for this CPU in this game, but the data shows that the GPU is the limiting factor at all settings, meaning the CPU is never fully utilized.

The nearest rivals to the 5900X in terms of average benchmark score include the Intel Core Ultra 7 366H, which is only 0.3% slower, and the Intel Core i7-14650HX, which is 0.5% faster. These deltas are negligible, indicating that the 5900X's performance is on par with modern high-end mobile and desktop parts. However, for this specific game and GPU combo, the CPU's vast multithreading capabilities (Cinebench R23 multicore 16262) are largely irrelevant. CS:GO's engine does not scale to use 24 threads effectively, and the bottleneck is elsewhere. The CPU's role here is to provide a stable, high-frequency platform, which it does, but the data shows that no amount of CPU headroom can compensate for the GPU's limitations.

Settings Recommendations

Based on the measured rows, the optimal experience for this combo is a balancing act between visual quality and frame rate. The data shows that the Medium preset offers the best combination of playability and fidelity across all resolutions. At 1080p, Medium delivers an average of 258 FPS, which is only 45 FPS lower than Low (303 FPS) but provides significantly better visuals than Low. The minimum FPS at 1080p Medium is 219, which is well above the refresh rate of most monitors.

At 1440p, the Medium preset yields an average of 177 FPS with a minimum of 151 FPS. This is a very playable experience for competitive gaming, and the jump from High (154 FPS average) to Medium (177 FPS average) is a substantial 23 FPS gain. The story is similar at 4K, where Medium achieves 105 FPS average with a minimum of 89 FPS, making it the only preset besides Low that maintains an average above 100 FPS at this resolution. High at 4K drops to 91 FPS, and Ultra falls to 77 FPS, both of which are less desirable for a fast-paced shooter.

The Ultra preset provides no tangible benefit for this configuration. It results in the lowest frame rates at every resolution (190 FPS at 1080p, 131 FPS at 1440p, 77 FPS at 4K) while presumably taxing the GPU the most. The data suggests that the visual uplift from High to Ultra is not worth the 16% performance hit seen at 1440p (from 154 to 131 FPS). For players seeking maximum competitive advantage, Low at 1080p offers the highest frame rates (303 FPS), but the Medium preset provides a superior balance, delivering high FPS while unlocking more graphical features. The measured numbers indicate Medium is the sweet spot for this hardware pairing.

How This Combo Ranks

In the database of tested combinations for Counter-Strike: Global Offensive, this specific pairing of the AMD Ryzen 9 5900X and Intel Arc B390 ranks 2510 out of 2848 tested combos. This places it in the bottom 12% of all configurations, which is a surprisingly low position given the powerful CPU. The rank is a direct consequence of the GPU's limitations, as the Arc B390 holds the entire system back.

To put this in perspective, the GPU's standalone benchmark score is 1482 on the 3dmark Steel Nomad DX12 test, placing it in the 9th percentile of all GPUs. Its nearest rivals are the NVIDIA GeForce GT 520MX, which is 1.3% slower, and the NVIDIA GeForce GT 710, which is 2.7% slower. These are extremely old, low-end parts, and the Arc B390's performance is on par with them. This explains why the combo ranks so low: the CPU is performing at a high level, but the GPU is not.

The combo rank of 2510 out of 2848 indicates that most other tested combinations, even those with much weaker CPUs, achieve higher frame rates in CS:GO because they are paired with more capable graphics solutions. The data implies that the Ryzen 9 5900X is effectively wasted in this configuration for this game. The CPU's 87th percentile standing does not help the overall ranking because the GPU's 9th percentile standing drags the entire system down. This rank serves as a clear warning that pairing a high-end CPU with an entry-level GPU will not yield a balanced gaming experience, even in a CPU-light title like CS:GO.

FAQ

Q: What is the average FPS for this combo at 1080p on Low settings?

A: The measured average frame rate at 1920x1080 with Low settings is 303 FPS, which is the highest average recorded for any setting at this resolution.

Q: How does the 4K Ultra preset compare to the 1440p High preset?

A: The 4K Ultra preset averages 77 FPS, while the 1440p High preset averages 154 FPS. This represents a 50% reduction in frame rate when moving from 1440p High to 4K Ultra.

Q: What is the minimum FPS recorded at 1440p on Medium settings?

A: At 2560x1440 with Medium settings, the minimum FPS recorded is 151, with an average of 177 FPS and a maximum of 204 FPS.

Q: Is the CPU or GPU the main bottleneck for this system in CS:GO?

A: The data indicates the GPU is the primary bottleneck. The FPS drops significantly as resolution increases at all settings, a clear sign of GPU limitation, while the CPU's high benchmark scores (Cinebench R23 multicore 16262) suggest it is not being fully utilized.

Q: What is the rank of this CPU+GPU combination among all tested combos in this game?

A: This combo ranks 2510 out of 2848 tested combinations, placing it in the lower portion of the database. This low rank is attributed to the GPU's low performance percentile.

Q: What is the frame rate difference between Low and Ultra at 1080p?

A: At 1920x1080, the Low preset averages 303 FPS, while the Ultra preset averages 190 FPS. The difference is 113 FPS, or about 37% lower performance on Ultra compared to Low.

Measured FPS Breakdown

The measured data provides a complete matrix of performance across three resolutions and four settings presets. At 1920x1080, the frame rates are consistently high, with the Low preset leading at 303 FPS average. The Medium preset follows with 258 FPS average (min 219, max 296), High with 223 FPS average, and Ultra with 190 FPS average. The progression shows a clear 35-40 FPS drop for each step up in graphical fidelity from Low to High.

Moving to 2560x1440, the averages decrease substantially. Low still leads with 208 FPS, followed by Medium at 177 FPS (min 151, max 204), High at 154 FPS, and Ultra at 131 FPS. The relative differences between settings remain consistent, but the absolute values are approximately 30% lower than at 1080p. This resolution is where the GPU's limitations become more apparent, as even the Low preset cannot reach the 300 FPS mark achieved at 1080p.

At 3840x2160, the performance drops significantly. Low is the only preset to average above 120 FPS, hitting 123 FPS. Medium averages 105 FPS (min 89, max 120), High averages 91 FPS, and Ultra averages 77 FPS. The data shows that at 4K, the Arc B390 is heavily taxed, and the differences between settings compress, with only a 46 FPS gap between Low and Ultra. The minimum FPS values at Medium (89 at 4K) indicate that frame pacing can become inconsistent at higher resolutions.

GPU Role

The Intel Arc B390 is an integrated GPU based on the Xe3-LPG architecture, codenamed Panther Lake, built on a 3 nm process. It operates with a base clock of 300 MHz and a boost clock of 2500 MHz. The GPU has 1536 shading units, 48 texture mapping units, and 24 render output units. Its memory is system-shared, with bandwidth that is system-dependent, and it features 12 ray tracing cores. The GPU's FP32 performance is rated at 7.680 TFLOPS, and its pixel rate is 60.00 GPixel/s.

The GPU's benchmark results are modest, with a single 3dmark Steel Nomad DX12 score of 1482. This places it in the 9th percentile of all GPUs, indicating that it performs worse than 91% of tested graphics solutions. Its nearest rivals are the NVIDIA GeForce GT 520MX (1.3% faster), the NVIDIA GeForce 800M (1.5% faster), and the NVIDIA GeForce GT 625 OEM (2.5% faster). These are all legacy parts from over a decade ago, highlighting the Arc B390's position as an entry-level solution.

In CS:GO, the GPU's role is to render frames at the requested resolution and settings. The data shows that the Arc B390's 24 ROPs and 7.680 TFLOPS of compute power are insufficient to maintain high frame rates at higher resolutions. At 1080p, it can push over 300 FPS on Low, but at 4K Ultra, it drops to 77 FPS. The system-shared memory and system-dependent bandwidth mean that the GPU is also competing with the CPU for memory access, which can further limit performance. The GPU's low TDP of 80 W and IGP slot width indicate it is designed for power efficiency rather than high-end gaming, and the measured FPS data confirms this. The boost clock of 2500 MHz is respectable, but the core architecture and memory constraints prevent it from competing with even entry-level discrete GPUs.