Counter-Strike 2

Counter-Strike 2 presents an unusual scaling profile for the Intel Core Ultra 7 265K paired with the NVIDIA GeForce RTX 5090. At 1080p Low, the combination produces 774.9 FPS, but dropping to 4K Low still yields 284 FPS—a 63% reduction in raw throughput. This steep decline indicates that while the RTX 5090 is the primary driver of frame rate at higher resolutions, the Core Ultra 7 265K’s 20-core Arrow Lake architecture still exerts significant influence at lower resolutions, where the engine’s draw-call overhead becomes the limiting factor. The data shows a non-linear relationship: moving from 1080p to 1440p reduces Low-settings performance by 34%, while the subsequent step to 4K costs another 44.5%. This is a classic sign of a CPU-bound scenario at 1080p that gradually transitions to GPU-bound territory as pixel count rises, but even at 4K the 284 FPS result suggests the processor is not entirely idle.

Resolution Scaling

The measured FPS values reveal a consistent pattern across all settings presets: the steepest relative drop occurs between 1440p and 4K, not between 1080p and 1440p. For High settings, 1080p delivers 479.1 FPS, 1440p drops to 317.5 FPS (a 33.7% decrease), and 4K falls to 175.9 FPS (a 44.6% decrease from 1440p). This widening gap indicates that the RTX 5090’s 32 GB of GDDR7 memory and 1.79 TB/s bandwidth are being increasingly taxed as resolution climbs, but the Core Ultra 7 265K’s 3.90 GHz base and 5.50 GHz boost clocks keep the CPU from becoming a bottleneck until very high frame rates.

At Medium settings, the scaling is even more pronounced: 643.8 FPS at 1080p, 424.5 FPS at 1440p (34.1% drop), and 237.4 FPS at 4K (44.1% drop from 1440p). The Ultra preset shows the least relative sensitivity to resolution, with 370.6 FPS at 1080p, 248 FPS at 1440p (33.1% drop), and 141 FPS at 4K (43.1% drop). Interestingly, the percentage drops are remarkably consistent across presets—roughly one-third between 1080p and 1440p, then another 44% to 4K. This regularity suggests the limiting component shifts smoothly rather than abruptly, with the RTX 5090’s 104.8 TFLOPS FP32 throughput becoming the dominant constraint at 4K while the CPU’s 30 MB shared L3 cache and dual-channel DDR5 memory bandwidth (102.4 GB/s) still matter at 1080p.

GPU Role

The RTX 5090’s specifications directly explain its behavior in Counter-Strike 2. With a base clock of 2017 MHz and boost clock of 2407 MHz, the GPU’s 21,760 shading units and 176 ROPs deliver a pixel rate of 423.6 GPixel/s. In a game like CS2, which relies heavily on rapid scene changes and minimal post-processing, this pixel throughput is crucial. The 32 GB VRAM capacity is far beyond what CS2 requires—even at 4K Ultra, memory allocation is unlikely to exceed a fraction of that—but the 512-bit bus width and 1.79 TB/s bandwidth ensure that texture streaming and shader execution never stall.

What the data reveals is a GPU that is never truly saturated at 1080p, even at Ultra settings. The 370.6 FPS result at 1080p Ultra is likely limited by the CPU’s single-thread performance, which is reflected in the processor’s Cinebench R23 single-core score of 7060. The RTX 5090’s 94th percentile ranking among all GPUs, with an average benchmark score of 84306, places it just 0.1% ahead of the RTX 5090 D and 1.3% ahead of the AMD Radeon PRO W6600 in synthetic tests, but the real-world CS2 numbers show it scaling almost linearly with resolution until it hits the CPU ceiling.

Settings Recommendations

For competitive play at 1080p, the Low preset’s 774.9 FPS is the clear choice, but the data shows diminishing returns beyond Medium’s 643.8 FPS. The gap between Low and Medium is 16.9%, while the jump from Medium to High costs another 25.6% (479.1 FPS). At 1440p, Medium’s 424.5 FPS represents the best balance for high-refresh-rate monitors, as it stays above 400 FPS while offering improved visual fidelity over Low’s 511.6 FPS. The Ultra preset at 1440p drops to 248 FPS, which still exceeds most 240 Hz displays but introduces unnecessary GPU load.

At 4K, the recommendation shifts decisively to High settings. The 175.9 FPS average is 24.8% higher than Ultra’s 141 FPS, while the visual difference in CS2’s relatively simple scenes is minimal. The Medium preset at 237.4 FPS is tempting for 4K 240 Hz panels, but the data indicates that High provides a more stable experience without the geometric complexity of Ultra. The Low preset at 4K (284 FPS) is playable but sacrifices too much visibility for a tactical shooter where enemy detection at range is critical. The data strongly suggests that the RTX 5090’s overhead at 4K High is well-utilized, whereas Ultra appears to hit a rendering pipeline bottleneck rather than a memory or compute limit.

Measured FPS Breakdown

The complete dataset shows the following measured averages across all resolution and settings combinations. At 3840x2160, the presets produce 175.9 FPS (High), 284 FPS (Low), 237.4 FPS (Medium), and 141 FPS (Ultra). The spread from Low to Ultra is 143 FPS, or just over 50% of the Low value. At 2560x1440, the numbers are 317.5 FPS (High), 511.6 FPS (Low), 424.5 FPS (Medium), and 248 FPS (Ultra). The Low-to-Ultra spread here is 263.6 FPS, indicating that the GPU has more headroom at this resolution. At 1920x1080, the results are 479.1 FPS (High), 774.9 FPS (Low), 643.8 FPS (Medium), and 370.6 FPS (Ultra), with a spread of 404.3 FPS.

The ratio between Low and Ultra is instructive: at 1080p, Low is 2.09x faster than Ultra; at 1440p, that ratio narrows to 2.06x; at 4K, it narrows to 2.01x. This convergence suggests that the CPU-bound nature of CS2 at low settings becomes less dominant as resolution increases. The combo’s rank of 5 out of 1632 combinations places it in the top 0.3% of tested configurations, which aligns with the Core Ultra 7 265K’s 97th percentile ranking among all CPUs and the RTX 5090’s 94th percentile among GPUs. The processor’s nearest rival, the Core Ultra 7 265KF, is virtually identical at -0.2% delta, while the i9-14900K trails by -0.9% and the EPYC 7413 by -1.2% in overall CPU benchmarks.

FAQ

Q: Is the Intel Core Ultra 7 265K bottlenecking the RTX 5090 in Counter-Strike 2?

A: At 1080p Low, yes—the 774.9 FPS result is more indicative of CPU single-thread limits (Cinebench R23 single-core score of 7060) than GPU capability. At 4K Ultra, the 141 FPS result shows the RTX 5090 becoming the limiting factor, as the 104.8 TFLOPS FP32 throughput is fully engaged.

Q: What is the best resolution for a 360 Hz monitor with this combo?

A: The data shows 1440p Medium at 424.5 FPS exceeds 360 Hz, as does 1440p High at 317.5 FPS if you prefer visual quality. At 1080p, even Ultra at 370.6 FPS clears the 360 Hz threshold, making that resolution viable for maximum refresh rates.

Q: How does the RTX 5090 compare to its closest rival in this game?

A: The RTX 5090’s average benchmark score of 84306 is 0.1% ahead of the RTX 5090 D and 1.3% ahead of the AMD Radeon PRO W6600. In CS2 specifically, the measured results show no rival data provided, but the GPU’s 94th percentile ranking indicates it sits near the top of the performance distribution.

Q: Why does the Ultra preset show the smallest FPS percentage drop from 1080p to 4K?

A: The Ultra preset’s 370.6 FPS at 1080p to 141 FPS at 4K represents a 62% reduction, compared to Low’s 63% reduction. This marginal difference suggests that the Ultra preset’s additional shading and texture work does not disproportionately impact the GPU, as the RTX 5090’s 680 TMUs and 1,636.8 GTexel/s texture rate handle the load efficiently.

Q: Does the 32 GB VRAM provide any advantage in CS2 at these settings?

A: No measured data indicates VRAM capacity affects results, as CS2’s requirements are far below 32 GB. The 1.79 TB/s bandwidth and 512-bit bus are more relevant, as they ensure the 175.9 FPS at 4K High is not memory-limited.

Q: What is the expected FPS difference between the Core Ultra 7 265K and its nearest CPU rival?

A: The Core Ultra 7 265KF is 0.2% faster in average CPU benchmark scores (79240 vs 79102), while the i9-14900KF is also 0.2% faster and the i9-14900K is 0.9% faster. In CS2, these sub-1% differences would translate to less than 8 FPS at 1080p Low (774.9 FPS baseline), which is within run-to-run variance.