Minecraft

Minecraft is notoriously sensitive to single-threaded performance, and the data for the Intel Core i5-9400 paired with the AMD Radeon RX 570 reflects a system that is heavily constrained by the CPU at lower resolutions. Across all tested settings, the combination posts playable frame rates at 1080p and 1440p, but the performance cliff at 4K Ultra reveals a GPU that is out of its depth. The i5-9400’s modest six-core design, without Hyper-Threading, provides adequate headroom for the game’s primary thread, but the RX 570’s 4 GB VRAM and 224.0 GB/s bandwidth become the limiting factor as resolution scales. The overall combo rank of 3485 out of 3710 tested configurations places this pairing in the bottom 6% of all systems in the database, indicating that while it handles the game at moderate settings, it is far from a high-performance solution for Minecraft’s more demanding configurations.

Resolution Scaling

The measured FPS data shows a clear and predictable decline as resolution increases, but the rate of that decline varies significantly by quality setting. At 1080p with Low settings, the system achieves 187 FPS, which drops to 118 FPS at 1440p and further to 62 FPS at 4K. This represents a 37% reduction from 1080p to 1440p and a 47% reduction from 1440p to 4K. The pattern suggests that at 1080p Low, the CPU is the primary bottleneck, as the GPU has ample headroom to process the simple geometry and lighting. The i5-9400’s 4.10 GHz boost clock on a single core is sufficient to drive high frame rates, but the lack of additional threads limits the absolute ceiling.

Moving to Medium settings, the frame rate at 1080p is 148 FPS, dropping to 94 FPS at 1440p and 49 FPS at 4K. The percentage drops are 36% and 48% respectively, which is nearly identical to the Low setting scaling. This indicates that the Medium preset does not introduce a significant enough GPU workload to shift the bottleneck away from the CPU at lower resolutions. The RX 570’s 2048 shading units and 128 TMUs are capable of handling the increased texture filtering and draw distance without becoming saturated until the resolution approaches 4K.

At High settings, the scaling becomes more pronounced. The 1080p result is 118 FPS, falling to 74 FPS at 1440p and 39 FPS at 4K. The drop from 1080p to 1440p is 37%, but the drop from 1440p to 4K is 47%. This steeper decline at 4K suggests that the GPU is now the limiting component, as the increased pixel count and higher-quality shadows and lighting overwhelm the RX 570’s 4 GB VRAM. The memory bandwidth of 224.0 GB/s is insufficient to feed the rendering pipeline at 3840x2160 with High settings, resulting in a sub-60 FPS experience.

The Ultra preset reveals the most dramatic scaling. At 1080p, the system manages 74 FPS, which is already below the 1440p High result of 74 FPS, indicating that Ultra settings impose a substantial GPU load even at lower resolutions. At 1440p, Ultra drops to 46 FPS, and at 4K, it falls to 24 FPS. The drop from 1080p to 1440p is 38%, and from 1440p to 4K is 48%. The 4K Ultra result of 24 FPS is effectively unplayable for most users, and the data clearly shows that this combination is not intended for maximum quality at high resolutions. The 5.095 TFLOPS of FP32 compute in the RX 570 is simply not enough to sustain the complex shader work required by Ultra settings at 4K.

CPU Role

The Intel Core i5-9400 is a six-core, six-thread processor based on the Coffee Lake architecture, with a base clock of 2.90 GHz and a boost clock of 4.10 GHz. In Minecraft, which relies heavily on a single primary thread for world generation and entity updates, the 4.10 GHz boost clock is the most critical specification. The benchmark results for the i5-9400 show a Cinebench R23 single-core score of 935, which places the processor in the 47th percentile of all CPUs. This single-core performance is adequate but not exceptional, and it explains why the system cannot maintain frame rates above 200 FPS even at 1080p Low, where the GPU is largely idle.

The multi-core performance of the i5-9400, as measured by a Cinebench R23 multi-core score of 6629, is less relevant for Minecraft but still affects overall system responsiveness. The processor’s 9 MB of shared L3 cache and dual-channel DDR4 memory support with 42.7 GB/s of bandwidth provide sufficient data throughput for the game’s asset streaming. However, the lack of Hyper-Threading means that the processor has only six threads to handle background tasks, which can lead to occasional frame hitches when the operating system or other applications compete for CPU time.

Compared to its nearest rivals in the database, the i5-9400’s average benchmark score of 2254 is nearly identical to the Intel Core i7-1068NG7, which scores 2259, and the Intel Core i7-10710U, which scores 2248. The deltaPct values of -0.2% and +0.3% respectively indicate that these processors are functionally equivalent in synthetic benchmarks. This means that the i5-9400 is not a performance outlier; it is a mainstream processor that delivers predictable results. In Minecraft, the limiting factor is not the number of cores but the single-thread boost behavior, and the 4.10 GHz maximum is competitive with other processors in this class.

The 65 W TDP and 14 nm process node are typical for this generation, and the processor’s end-of-life production status suggests that it is a mature design. For Minecraft specifically, the data shows that the CPU can sustain 187 FPS at 1080p Low, which is more than sufficient for competitive play. The bottleneck becomes apparent at 1440p and above, but the CPU is not the primary cause of the frame rate drops at 4K; that distinction belongs to the GPU.

FAQ

Q: What is the best resolution and settings combination for this system in Minecraft?

A: The data shows that 1080p High delivers 118 FPS, which is smooth and visually acceptable. For higher fidelity, 1440p High provides 74 FPS, which is still playable. 4K is only viable at Low settings, where the system achieves 62 FPS.

Q: Is the AMD Radeon RX 570 the bottleneck at 1080p Low?

A: No. At 1080p Low, the system reaches 187 FPS, which is well above the refresh rate of most monitors. The CPU’s single-thread performance is the limiting factor at this resolution, as the GPU has significant headroom with 2048 shading units and a 224.0 GB/s memory bandwidth.

Q: How does the RX 570 compare to its nearest rivals in synthetic benchmarks?

A: The RX 570’s average benchmark score is 28766, which is within 0.8% of the AMD Radeon RX 470 (28996) and 0.4% of the AMD Radeon RX 6800M (28874). The Quadro RTX 8000 is 1.2% slower, and the R9 M295X is 0.7% slower.

Q: Can this system handle 4K Minecraft at any settings?

A: Yes, but only at Low settings, where it averages 62 FPS. Medium settings drop to 49 FPS, High to 39 FPS, and Ultra to 24 FPS. The 4K Ultra result is not recommended for comfortable gameplay.

Q: What is the significance of the combo rank of 3485 out of 3710?

A: This rank places the i5-9400 and RX 570 combination in the bottom 6% of all tested configurations. It indicates that while the system is functional, it is outperformed by the vast majority of other CPU-GPU pairings in the database for Minecraft.

Q: Is the i5-9400’s lack of Hyper-Threading a problem for Minecraft?

A: The data does not show a significant issue. The processor’s six physical cores with a 4.10 GHz boost clock are sufficient for the game’s single-threaded nature, as evidenced by the 187 FPS result at 1080p Low. Background tasks may cause minor stutters, but the core game performance is not limited by thread count.

How This Combo Ranks

The combo rank of 3485 out of 3710 tested combinations is a stark indicator of this system’s position in the database. This rank places the i5-9400 and RX 570 pairing in the bottom 6.1% of all configurations, which is a low standing for a game as popular as Minecraft. The rank is derived from measured FPS data across all tested settings and resolutions, and it reflects the system’s inability to maintain high frame rates at 4K or with Ultra settings. At 1080p, the system is competitive, but the database likely includes many modern CPUs with higher single-thread scores and GPUs with significantly more VRAM and compute power.

The i5-9400’s 47th percentile ranking among all CPUs and the RX 570’s 74th percentile ranking among all GPUs suggest that the individual components are not bottom-tier, but their combination yields a below-average result. The CPU’s single-core score of 935 in Cinebench R23 is 33% lower than the top-tier processors in the database, which directly impacts Minecraft’s frame rate ceiling. The GPU’s 4 GB VRAM is a significant limitation at 4K, where the Ultra preset reduces the frame rate to 24 FPS. This rank also implies that users seeking a smoother experience would need to upgrade both components, as the CPU limits 1080p performance and the GPU limits 4K performance.

When compared to the nearest rival configurations, the i5-9400’s performance is nearly identical to the i7-1068NG7 and i7-10710U, with deltaPct values of -0.2% and +0.3% respectively. This means that swapping the CPU for one of these alternatives would not change the Minecraft results. The RX 570’s nearest rival, the RX 470, has a deltaPct of -0.8%, indicating that the 570 is slightly faster in synthetic tests but not enough to alter the gaming experience. The low combo rank is therefore not a reflection of a mismatched pairing, but rather the inherent limitations of the hardware when faced with Minecraft’s demanding Ultra settings and high resolutions.

GPU Role

The AMD Radeon RX 570 is a Polaris 20 chip built on the GCN 4.0 architecture, with a base clock of 1168 MHz and a boost clock of 1244 MHz. The GPU features 4 GB of GDDR5 memory on a 256-bit bus, providing a bandwidth of 224.0 GB/s. The 5.095 TFLOPS of FP32 compute and a pixel rate of 39.81 GPixel/s are moderate figures that place the card in the 74th percentile of all GPUs. In Minecraft, the GPU’s role becomes more pronounced as resolution increases and settings are raised to High or Ultra, particularly due to the 4 GB VRAM capacity.

At 1080p, the RX 570 is not the primary bottleneck. The 118 FPS at High settings and 148 FPS at Medium settings indicate that the GPU can handle the workload with ease, leaving the CPU as the limiter. However, at 4K, the GPU’s limitations become apparent. The 62 FPS at Low settings is achievable because the reduced texture quality and draw distance keep VRAM usage below 4 GB. Moving to Medium at 4K drops the frame rate to 49 FPS, and the minimum FPS of 42 suggests that the GPU is struggling with frame pacing as memory bandwidth becomes saturated. At High settings, the 4K result of 39 FPS is borderline playable, but the Ultra preset at 24 FPS is clearly beyond the card’s capabilities.

The memory bandwidth of 224.0 GB/s is the key constraint at 4K. With a 256-bit bus and 7 Gbps effective memory speed, the RX 570’s bandwidth is insufficient for the high-resolution textures and advanced lighting effects in Minecraft’s Ultra preset. The 4 GB VRAM capacity is also a limiting factor, as the game at 4K Ultra can exceed this amount, forcing the GPU to swap data to system memory, which causes severe frame rate drops. The pixel rate of 39.81 GPixel/s and texture rate of 159.2 GTexel/s are adequate for 1080p and 1440p gaming, but they cannot keep up with the 8.3 million pixels at 4K.

The GPU’s nearest rivals in the database include the RX 6800M, which scores 28874, and the RX 470, which scores 28996. The deltaPct values of -0.4% and -0.8% respectively indicate that the RX 570 is statistically tied with these cards in synthetic benchmarks. This means that upgrading to an RX 470 would not improve Minecraft performance, and the RX 6800M, while faster, is a mobile part that would require a different system configuration. The Quadro RTX 8000, with a score of 28421, is 1.2% slower, but its professional-grade drivers and larger memory pool would likely handle Minecraft’s 4K Ultra better in practice, despite the similar synthetic score.

Measured FPS Breakdown

The measured FPS data for this combination is presented across three resolutions and four quality settings, with average FPS values for all combinations and minimum/maximum FPS for Medium settings only.

At 1920x1080, the system delivers its highest performance. With Low settings, the average FPS is 187, which is the highest value in the entire dataset. Medium settings reduce the average to 148 FPS, with a minimum of 126 FPS and a maximum of 171 FPS. High settings produce an average of 118 FPS, and Ultra settings drop to 74 FPS. The 1080p results show a gradual decline from Low to High, followed by a sharp 37% drop when moving from High to Ultra. This indicates that the Ultra preset introduces a significant increase in GPU workload, likely from advanced shadows and render distance, that the RX 570 can only partially handle.

At 2560x1440, the performance scales predictably. Low settings average 118 FPS, which is exactly the same as the 1080p High result. Medium settings average 94 FPS, with a minimum of 80 FPS and a maximum of 108 FPS. High settings average 74 FPS, and Ultra settings average 46 FPS. The 1440p results show that the system remains playable at all settings except Ultra, where the frame rate dips below 50 FPS. The minimum FPS of 80 at Medium settings indicates that the frame pacing is consistent, with no severe stutters. The drop from High to Ultra at 1440p is 38%, similar to the 1080p drop, suggesting that the GPU is consistently the limiting factor for Ultra presets.

At 3840x2160, the system struggles to maintain playable frame rates. Low settings average 62 FPS, which is just above the 60 FPS threshold for smooth gameplay. Medium settings average 49 FPS, with a minimum of 42 FPS and a maximum of 56 FPS. High settings average 39 FPS, and Ultra settings average 24 FPS. The 4K results show a steep decline from Low to Medium, a further decline to High, and a catastrophic drop to Ultra. The 24 FPS at Ultra is below the standard for console gaming and would be considered unplayable for most users. The minimum FPS of 42 at Medium settings indicates that even at this moderate preset, the system experiences frame drops below 45 FPS, which can be noticeable during fast-paced gameplay.

The data also provides insight into the scalability of each setting. At 1080p, the difference between Low and Ultra is 113 FPS, while at 1440p it is 72 FPS, and at 4K it is 38 FPS. This narrowing gap confirms that the GPU becomes the dominant bottleneck as resolution increases, and the CPU’s influence diminishes. The Medium settings data, which includes minimum and maximum FPS, shows that the frame rate variance is consistent across resolutions, with the 1080p range being 45 FPS, 1440p being 28 FPS, and 4K being 14 FPS. This suggests that the rendering pipeline is stable, but the absolute performance is insufficient for high-resolution, high-quality gaming.