Counter-Strike 2

Counter-Strike 2 with the AMD Ryzen 5 8400F and NVIDIA GeForce RTX 5090 presents a fascinating study in bottleneck dynamics. The data shows a pairing of a mid-range 6-core CPU with one of the most powerful consumer GPUs ever produced, and the measured FPS across resolutions reveals exactly where the balance of power shifts. This analysis unpacks the benchmark results, examining how the 8400F's Zen 4 architecture interacts with the RTX 5090's raw Blackwell 2.0 compute in Valve's tactical shooter.

Resolution Scaling

The FPS scaling from 1080p to 4K tells a clear story about which component is driving performance at each setting. At 1080p with Low settings, the combo achieves 738 FPS average. Moving to 1440p Low drops that to 505 FPS, a 31.6% reduction, and 4K Low further reduces it to 282 FPS. This steep decline indicates that at lower resolutions, the CPU is the primary limiting factor — the Ryzen 5 8400F’s 6 cores and 12 threads are working near their limit to feed frames to the GPU, and the RTX 5090 is left waiting for more work.

The scaling pattern shifts dramatically at higher settings. At Ultra, the 1080p average is 368 FPS, 1440p drops to 243 FPS (34% reduction), and 4K falls to 136 FPS (44% reduction from 1440p). This much steeper performance cliff at 4K Ultra suggests the GPU becomes the bottleneck when the render load increases. The RTX 5090, despite its 32 GB of GDDR7 memory and 1.79 TB/s bandwidth, still faces a substantial workload at 4K Ultra in CS2.

The Medium settings row provides the most complete data, including minimum and maximum FPS. At 1080p Medium, the average is 634 FPS with a minimum of 539 and maximum of 729. The 1440p Medium average of 420 FPS (min 357, max 482) represents a 33.8% drop from 1080p, while 4K Medium at 234 FPS (min 199, max 270) shows another 44.3% reduction. The consistency of these percentage drops across settings — roughly 32-34% from 1080p to 1440p and 44-46% from 1440p to 4K — indicates a balanced scaling curve where both CPU and GPU contribute to the overall performance ceiling.

Notably, the gap between Low and Ultra settings widens as resolution increases. At 1080p, the difference is 370 FPS (738 Low vs 368 Ultra), while at 4K it narrows to 146 FPS (282 Low vs 136 Ultra). This convergence at higher resolutions confirms that the GPU’s rendering load becomes the dominant constraint, while at 1080p the CPU’s single-thread performance, measured at 2943 in Cinebench R23 single-core, is what enables those extreme frame rates.

Settings Recommendations

The measured data provides clear guidance on which preset offers the best experience for different priorities. For competitive play where maximum frame rate matters most, the Low preset at 1080p delivers the highest measured average at 738 FPS. This setting also shows the largest headroom over the CPU’s frame-generation capacity, suggesting that players with 360Hz or 500Hz monitors could fully utilize their display’s refresh rate.

For players seeking a balance between visual quality and performance, Medium at 1440p stands out. The 420 FPS average with a 357 FPS minimum ensures no drops below the refresh rate of most high-end monitors, while the visual upgrade from Low is substantial. The minimum FPS data available only for Medium settings shows that this preset maintains 357 FPS minimum at 1440p and 539 FPS minimum at 1080p, indicating stable frame pacing without severe stutters.

The High preset at 1440p (313 FPS average) represents the sweet spot for those who want improved graphics without sacrificing competitive viability. At 4K, High drops to 175 FPS, which remains playable but below the 240Hz threshold that many esports enthusiasts prefer. Ultra settings should be reserved for players with 120Hz or 144Hz 4K displays, as the 136 FPS average at 4K Ultra is the only measured result that falls below 144 FPS.

The data implies that CS2’s engine, which is built on the Source 2 framework, responds more strongly to CPU frequency than to GPU features. The Ryzen 5 8400F’s boost clock of 4.70 GHz appears sufficient to drive the RTX 5090 effectively at 1080p and 1440p, but the GPU’s 2017 MHz base and 2407 MHz boost clocks become the limiting factor at 4K Ultra. For most users, Medium or High at 1440p offers the best combination of visual fidelity and frame rate headroom.

How This Combo Ranks

This specific CPU-GPU combination ranks 92nd out of 3719 tested combos in Counter-Strike 2, placing it in the top 2.5% of all configurations. This rank is notable given that the RTX 5090 alone sits at the 92nd percentile among all GPUs, while the Ryzen 5 8400F ranks at the 77th percentile among CPUs. The combo’s strong ranking suggests that CS2 benefits more from the GPU’s massive compute resources than from CPU headroom, even at lower resolutions.

The CPU’s nearest rivals show how close the 8400F is to its direct competition. The AMD Ryzen 5 7500F scores 24964 in average benchmark, just 0.2% behind the 8400F’s 25005 average. The Intel Core i7-11850H trails by 0.3% with a score of 24935, while the Intel Core i7-13620H is 0.4% behind at 24911. On the other side, the AMD EPYC 9474F leads by 0.4% with a score of 25103. This tight clustering around the 25000 mark indicates that the 8400F delivers performance squarely in the mainstream desktop and mobile workstation range.

The GPU’s nearest rivals present a more unusual picture. The NVIDIA Tesla P100 PCIe 16 GB scores 79605, just 0.3% behind the RTX 5090’s 79842 average. The Tesla P100 PCIe 12 GB is 0.6% behind at 79396, and the AMD Radeon RX 6850M XT trails by 1.1% at 78940. The AMD Radeon Pro Vega 64X leads the RTX 5090 by 1.4% with a score of 80959. These comparisons highlight that the RTX 5090’s massive specifications — 21760 shading units, 680 TMUs, and 176 ROPs — do not translate to proportionally higher benchmark scores in all workloads, particularly in synthetic tests that may not fully utilize its Blackwell 2.0 architecture.

The combo’s 92nd rank out of 3719 configurations represents a 97.5th percentile result. This places it above the vast majority of systems tested, though the gap between the RTX 5090’s 92nd GPU percentile and the combo’s 97.5th percentile suggests that pairing this GPU with a stronger CPU could push performance even higher in CS2, particularly at 1080p where the CPU bottleneck is most pronounced.

FAQ

Q: Can this combo achieve 500+ FPS in Counter-Strike 2?

A: Yes, the data shows 738 FPS average at 1080p Low settings and 634 FPS at 1080p Medium. Even at 1440p, Low settings deliver 505 FPS average.

Q: What is the minimum FPS I can expect with this setup?

A: The only minimum FPS values recorded are for Medium settings: 539 FPS at 1080p, 357 FPS at 1440p, and 199 FPS at 4K. Other settings did not record minimum FPS values in the data.

Q: Is the RTX 5090 overkill for CS2?

A: The data shows that at 1080p and 1440p, the CPU limits performance. The RTX 5090’s full potential is only realized at 4K Ultra, where it delivers 136 FPS average. At lower resolutions, the GPU is not fully utilized.

Q: How does the Ryzen 5 8400F compare to its nearest CPU rivals?

A: The 8400F’s average benchmark score of 25005 is 0.2% ahead of the Ryzen 5 7500F, 0.3% ahead of the Core i7-11850H, and 0.4% ahead of the Core i7-13620H. The EPYC 9474F leads by 0.4%.

Q: What frame rate can I expect at 4K with High settings?

A: The measured average FPS at 4K High is 175 FPS. This is suitable for 144Hz displays but below 240Hz refresh rates.

Q: Does this combo rank highly among all tested configurations?

A: Yes, it ranks 92nd out of 3719 tested combos, placing it in the top 2.5% of all systems benchmarked for CS2.

GPU Role

The NVIDIA GeForce RTX 5090 brings extraordinary specifications to CS2, yet the game’s measured performance reveals that much of this power remains untapped at lower resolutions. The GPU’s 32 GB of GDDR7 memory operates across a 512-bit bus, providing 1.79 TB/s of bandwidth. This memory configuration is far beyond what CS2 requires at 1080p or 1440p, where the game’s texture data and frame buffers fit comfortably within even 8 GB of VRAM.

The RTX 5090’s clock behavior — 2017 MHz base and 2407 MHz boost — indicates that the GPU can sustain high frequencies under load. The pixel rate of 423.6 GPixel/s and texture rate of 1,636.8 GTexel/s suggest the GPU is capable of far more than the measured FPS at 4K Ultra (136 FPS average) indicates. The bottleneck at 4K Ultra appears to be the game engine’s rendering pipeline rather than the GPU’s raw throughput.

The GPU’s benchmark results provide context for its gaming performance. The Passmark G3D score of 39650 places it in the 92nd percentile among all GPUs, while the 3DMark Steel Nomad DX12 score of 18355 reflects its modern architecture. The Geekbench Vulkan score of 376728 and OpenCL score of 334370 demonstrate strong compute capabilities that CS2 does not fully utilize. The GPU’s 104.8 TFLOPS FP32 performance is exceptional, but CS2’s source engine primarily relies on traditional rasterization rather than the RT cores (170) or tensor cores (680) that dominate this GPU’s design.

At 4K Ultra, the RTX 5090’s 176 ROPs and 680 TMUs process the frame’s pixel and texture work, but the 136 FPS average suggests the game’s draw call submission and CPU-side simulation limit the frame rate. The GPU achieves 282 FPS at 4K Low, showing a 107% improvement from Low to Ultra settings at the same resolution. This scaling factor indicates that the GPU has ample headroom at Low settings but becomes constrained by other factors at Ultra.

CPU Role

The AMD Ryzen 5 8400F, built on TSMC’s 4 nm process with Zen 4 (Phoenix) architecture, provides 6 cores and 12 threads with a base clock of 4.20 GHz and boost clock of 4.70 GHz. This CPU’s 65W TDP and 16 MB shared L3 cache represent a mainstream configuration, yet its benchmark scores show it performs competitively with larger workstation CPUs. The Cinebench R23 multi-core score of 20851 and single-core score of 2943 indicate strong per-thread performance, which is critical for CS2’s engine that typically relies on 1-4 primary threads.

The CPU’s memory subsystem — dual-channel DDR5 with 83.2 GB/s bandwidth — provides the data throughput necessary to feed the RTX 5090’s frame buffer. The 25,000 million transistors on a 178 mm² die allow for efficient operation, with the 3DMark max threads score of 6165 showing scalability across all 12 threads. However, the 3DMark single-thread score of 951 and Cinebench R15 single-core score of 296 reveal that the CPU’s per-thread performance, while respectable, is not exceptional compared to higher-end desktop processors.

In CS2, the CPU’s role becomes evident in the frame rate differences between resolution settings. At 1080p Low, the 738 FPS average suggests the CPU is near its maximum frame generation capacity. The 505 FPS at 1440p Low shows a 31.6% reduction, which aligns with the increased pixel workload but still indicates CPU limitation. The 282 FPS at 4K Low confirms that even at this resolution, the CPU can maintain high frame rates when the GPU is not heavily taxed.

The Passmark multi-thread score of 24389 and single-thread score of 3685 place the 8400F at the 77th percentile among all CPUs. Its nearest rivals — the Ryzen 5 7500F, Core i7-11850H, and Core i7-13620H — all score within 0.4% of the 8400F, suggesting that CS2 performance would be nearly identical with any of these processors. The CPU’s 4.70 GHz boost clock is within the range that CS2 benefits from, and the data shows that upgrading to a higher-clocked CPU would yield diminishing returns given the GPU’s dominance in the combo’s 92nd overall rank.

Measured FPS Breakdown

The complete measured FPS data for the AMD Ryzen 5 8400F + NVIDIA GeForce RTX 5090 combination in Counter-Strike 2 is as follows:

1920x1080:

• Low: 738 FPS average
• Medium: 634 FPS average, 539 FPS minimum, 729 FPS maximum
• High: 473 FPS average
• Ultra: 368 FPS average

2560x1440:

• Low: 505 FPS average
• Medium: 420 FPS average, 357 FPS minimum, 482 FPS maximum
• High: 313 FPS average
• Ultra: 243 FPS average

3840x2160:

• Low: 282 FPS average
• Medium: 234 FPS average, 199 FPS minimum, 270 FPS maximum
• High: 175 FPS average
• Ultra: 136 FPS average

These 12 data points reveal distinct patterns. The 1080p Low result of 738 FPS represents the maximum frame rate achievable with this combo, while the 4K Ultra result of 136 FPS is the minimum average across all tested configurations. The Medium settings at each resolution provide the only minimum FPS data, with the 4K Medium minimum of 199 FPS indicating that even the most demanding Medium configuration stays above 200 FPS.

The scaling from Low to Ultra at each resolution shows consistent patterns. At 1080p, Ultra delivers 49.9% of the Low frame rate (368 vs 738). At 1440p, Ultra achieves 48.1% of Low (243 vs 505). At 4K, Ultra reaches 48.2% of Low (136 vs 282). This consistency across resolutions suggests that the performance delta between Low and Ultra settings is independent of resolution, pointing to a game engine that scales settings uniformly.

The Medium settings data provides insight into frame time consistency. At 1080p, the minimum of 539 FPS is 85% of the average, while at 1440p the minimum of 357 FPS is also 85% of the average. At 4K, the minimum of 199 FPS represents 85% of the 234 FPS average. This consistent 85% ratio indicates stable frame pacing across all resolutions, with no unexpected stutters or hitches in the measured data.