Minecraft

Minecraft with an Intel Core i5-9400 and NVIDIA GeForce RTX 4080 presents a fascinating study in component balance, where the data reveals a massive GPU capable of extraordinary frame rates that are ultimately constrained by an aging six-core CPU. The measured results show a system that delivers playable performance at every resolution tested, but the scaling patterns expose where the true bottleneck lies.

Resolution Scaling

The measured FPS data shows a clear and predictable decline as resolution increases, but the rate of that decline tells a compelling story about system limitations. At 1080p with High settings, the combo produces 385 FPS, which drops to 323 FPS at 1440p and further to 169 FPS at 4K. This represents a 16% decrease from 1080p to 1440p, and a 56% decrease from 1080p to 4K. The scaling is not linear, and the steep drop at 4K suggests the GPU is finally being pushed toward its limits.

The Low settings preset reveals a different pattern. At 1080p Low, the system hits 455 FPS, dropping to 390 FPS at 1440p and 269 FPS at 4K. The 1080p to 1440p drop is 14%, nearly identical to the High preset's 16% decline. However, the 1440p to 4K transition at Low settings shows a 31% decrease, while the same transition at High settings shows a 48% decrease. This divergence indicates that at higher settings, the GPU is becoming more of a limiting factor, while at lower settings, the CPU's ceiling is more apparent.

Ultra settings present the most dramatic scaling. The 1080p Ultra result of 320 FPS drops to 202 FPS at 1440p and 106 FPS at 4K. The 1440p to 4K decline here is 48%, mirroring the High preset's behavior. What is particularly telling is the gap between Medium and Ultra at each resolution. At 1080p, Medium produces 418 FPS while Ultra produces 320 FPS, a 23% difference. At 4K, Medium produces 213 FPS while Ultra produces 106 FPS, a massive 50% difference. This suggests that Ultra settings introduce rendering workloads that scale disproportionately with resolution.

The data implies that at 1080p, the CPU is the primary constraint across all settings, as even the heaviest preset still exceeds 300 FPS. The GPU only begins to assert its influence at 4K, where the pixel throughput demands finally overtake the CPU's frame generation capacity.

GPU Role

The RTX 4080 is an exceptionally powerful graphics card, built on the Ada Lovelace architecture with a 5 nm process from TSMC. Its specifications are substantial: 16 GB of GDDR6X memory on a 256-bit bus, providing 716.8 GB/s of bandwidth. The card operates with a base clock of 2205 MHz and a boost clock of 2505 MHz, and its memory runs at an effective speed of 22.4 Gbps. The GPU contains 9728 shading units, 304 texture mapping units, and 112 render output units, along with 76 RT cores and 304 tensor cores.

The GPU's benchmark percentile of 86 places it in the upper echelon of all graphics cards. Its nearest rivals in the database include the NVIDIA GeForce RTX 4080 SUPER, which scores 0.1% higher, and the AMD Radeon Pro W5700X, which scores 1.1% higher. The AMD Radeon RX 6750 GRE 12 GB and AMD Radeon 8060S score 2.6% and 2.7% higher respectively. These deltas are small, indicating the RTX 4080 sits in a tightly contested performance band.

In Minecraft's measured results, the GPU's role becomes evident when examining the 4K data. The jump from Low to Medium at 4K produces a 21% decrease in FPS (269 to 213), while the jump from Medium to High produces a 21% decrease as well (213 to 169). The step from High to Ultra at 4K produces a 37% decrease (169 to 106). This progressive degradation suggests the GPU is being increasingly taxed by higher settings, with Ultra representing a workload that the card can still handle but with significant frame rate cost.

The 16 GB VRAM capacity is generous for Minecraft, which is not typically a VRAM-intensive title. However, the card's raw compute power, evidenced by its 48.74 TFLOPS FP32 performance and 761.5 GTexel/s texture rate, ensures that even at 4K Ultra, the system maintains triple-digit frame rates. The data shows the GPU is never the sole bottleneck at 1080p, where even Ultra settings yield 320 FPS, but at 4K, its influence becomes dominant.

CPU Role

The Intel Core i5-9400 is a six-core, six-thread processor based on the Coffee Lake architecture, manufactured on Intel's 14 nm process. It has a base clock of 2.90 GHz and a boost clock of 4.10 GHz, with 9 MB of shared L3 cache. The CPU supports DDR4 memory in a dual-channel configuration, providing 42.7 GB/s of memory bandwidth. Its integrated UHD 630 graphics are irrelevant in this context, as the system relies on the discrete RTX 4080.

The CPU's benchmark percentile of 47 places it near the middle of all processors. Its nearest rivals include the Intel Core i7-1068NG7, which scores 0.2% lower, and the Intel Core i7-10710U, which scores 0.3% higher. The AMD Ryzen 5 PRO 1500 scores 0.4% higher, while the Intel Core i3-10305 scores 0.4% lower. These are all extremely close scores, indicating the i5-9400 sits in a dense cluster of similarly performing CPUs.

In the measured game data, the CPU's role is most apparent at 1080p with Low settings, where the system achieves 455 FPS. This is the highest frame rate recorded across all configurations, and it is likely near the CPU's maximum frame generation capacity. The fact that 1080p Ultra produces 320 FPS — still far above any display's refresh rate — suggests the CPU is capable of feeding the GPU with frames faster than the GPU can render them at higher resolutions.

The CPU's six cores and six threads lack Hyper-Threading, which could be a limiting factor in Minecraft's simulation and chunk generation workloads. However, the 4.10 GHz boost clock helps mitigate this. The data shows that increasing resolution from 1080p to 1440p at Low settings only reduces FPS by 14%, indicating the CPU is still the primary driver at these settings. The transition from 1440p to 4K at Low settings produces a 31% decrease, suggesting the GPU begins to take over as the limiting factor.

The CPU's memory bandwidth of 42.7 GB/s is modest compared to the GPU's 716.8 GB/s, but for this game, the CPU's ability to maintain high frame rates at 1080p demonstrates it is not a severe bottleneck in most scenarios. The system's performance at 4K Ultra, where the CPU still manages 106 FPS, shows the i5-9400 can keep pace even when the GPU is heavily loaded.

How This Combo Ranks

The combination of the Intel Core i5-9400 and NVIDIA GeForce RTX 4080 ranks 775th out of 3710 tested combos in Minecraft, placing it in the top 21% of all system configurations. This ranking is notable given the CPU's mid-tier status (47th percentile) paired with the GPU's high-tier status (86th percentile). The combination of a relatively weak CPU with a very strong GPU results in a system that performs well but leaves performance on the table at lower resolutions.

The ranking suggests that this combo outperforms the vast majority of tested systems, likely due to the GPU's immense power compensating for the CPU's limitations. However, the ranking also implies there is headroom for improvement; pairing the RTX 4080 with a stronger CPU would likely yield even better results, particularly at 1080p where the CPU is the bottleneck.

The combo's rank of 775 out of 3710 places it in the second quartile of all combinations, which is respectable but not exceptional. This is a system that delivers high frame rates across all tested configurations, but its performance is constrained by the CPU at lower resolutions and by the GPU at higher resolutions. The data shows that the system is well-suited for 1440p and 4K gaming, where the GPU's power is more fully utilized.

FAQ

Q: What is the best resolution to use with this combo for the highest frame rates?

A: The data shows 1080p produces the highest frame rates across all settings, reaching 455 FPS at Low settings and 385 FPS at High settings. However, even at 4K, the system maintains 169 FPS at High settings, which is well above standard display refresh rates.

Q: How does the RTX 4080 compare to its nearest rival in terms of average benchmark score?

A: The RTX 4080 has an average benchmark score of 54247, which is 0.1% lower than the RTX 4080 SUPER (54209) and 1.1% higher than the AMD Radeon Pro W5700X (54828). The AMD Radeon RX 6750 GRE 12 GB scores 2.6% higher, while the AMD Radeon 8060S scores 2.7% higher.

Q: Does the CPU bottleneck the GPU at 1080p?

A: Yes, the data suggests the CPU is the limiting factor at 1080p. The frame rates at 1080p Low (455 FPS) and 1080p Ultra (320 FPS) are both extremely high, and the relatively small differences between settings indicate the CPU is generating frames faster than the GPU can render them at this resolution.

Q: What is the FPS difference between Low and Ultra settings at 4K?

A: At 4K, Low settings produce 269 FPS, while Ultra settings produce 106 FPS. This represents a 61% decrease in performance, indicating that Ultra settings place a significantly higher load on the GPU at this resolution.

Q: How does the i5-9400's benchmark score compare to its closest rival?

A: The i5-9400 has an average benchmark score of 2254, which is 0.2% lower than the Intel Core i7-1068NG7 (2259) and 0.3% higher than the Intel Core i7-10710U (2248). The AMD Ryzen 5 PRO 1500 scores 0.4% higher, while the Intel Core i3-10305 scores 0.4% lower.

Q: Is this system capable of maintaining 60 FPS at 4K Ultra settings?

A: Yes, the measured data shows 106 FPS at 4K Ultra settings, which is well above the 60 FPS threshold. The minimum FPS recorded at 4K Medium is 181 FPS, indicating the system maintains high frame rates even under load.

Settings Recommendations

Based on the measured data, the optimal settings depend on the target resolution and desired frame rate. At 1080p, all settings produce frame rates well above 300 FPS, so the choice comes down to visual quality versus raw performance. The High preset at 1080p delivers 385 FPS, which is more than sufficient for any display, and represents a good balance between visual fidelity and performance. Ultra at 1080p produces 320 FPS, a 17% decrease from High, which may not be worth the visual gains for competitive play.

At 1440p, the High preset produces 323 FPS, which is still exceptionally high. The Medium preset at 1440p produces 359 FPS, offering a slight performance boost over High. Ultra at 1440p drops to 202 FPS, which is still excellent but represents a 37% decrease from High. For most users, High at 1440p is the recommended choice, as it provides a substantial visual upgrade over Medium while maintaining frame rates that exceed any display's refresh rate.

At 4K, the recommendations shift. The High preset produces 169 FPS, which is smooth and playable. Ultra at 4K produces 106 FPS, which is still above 60 FPS but represents a 37% decrease from High. The Medium preset at 4K produces 213 FPS, offering the best combination of visual quality and performance at this resolution. For users with high-refresh-rate 4K displays, Medium is the recommended setting, as it provides 213 FPS while still looking significantly better than Low (269 FPS). For users prioritizing visual quality, High at 169 FPS is a strong choice, while Ultra is only recommended for those who prioritize maximum visual fidelity over frame rate.

Measured FPS Breakdown

The complete measured FPS data is as follows:

At 1920x1080, the system achieves 455 FPS at Low settings, 418 FPS at Medium settings, 385 FPS at High settings, and 320 FPS at Ultra settings. The Medium preset has a minimum FPS of 356 and a maximum of 481, indicating some frame time variance.

At 2560x1440, the system achieves 390 FPS at Low settings, 359 FPS at Medium settings, 323 FPS at High settings, and 202 FPS at Ultra settings. The Medium preset has a minimum FPS of 305 and a maximum of 413, showing a wider frame time range than at 1080p.

At 3840x2160, the system achieves 269 FPS at Low settings, 213 FPS at Medium settings, 169 FPS at High settings, and 106 FPS at Ultra settings. The Medium preset has a minimum FPS of 181 and a maximum of 245, representing the largest variance in the dataset.

The overall pattern shows that the system is capable of delivering high frame rates at every resolution and setting combination, with the most demanding configuration (4K Ultra) still producing 106 FPS. The data indicates that this combo is best suited for high-refresh-rate 1440p gaming or smooth 4K gaming, with the CPU serving as the primary constraint at lower resolutions and the GPU becoming the limiting factor at 4K Ultra.