Doom

The AMD Ryzen 5 7500F paired with the AMD Radeon RX 570 presents a stark study in bottleneck dynamics when running Doom. The data shows a configuration where a modern, high-core-count CPU is matched with an older, entry-level graphics card, resulting in performance that is almost entirely dictated by the GPU at higher resolutions. This analysis breaks down the measured frame rates to understand where the limits lie and what settings offer the most playable experience.

Resolution Scaling

The measured FPS data reveals a predictable yet steep decline in performance as resolution increases, a clear indicator of the GPU being the primary limiting factor. At 1080p with Low settings, the combo achieves an average of 96 FPS. Moving to 1440p at the same settings drops the average to 57.4 FPS, a reduction of roughly 40%. This substantial hit from a 1.78x increase in pixel count suggests that the RX 570's fill rate and memory bandwidth are being saturated quickly.

The trend continues sharply into 4K. At 3840x2160 with Low settings, the average FPS plummets to 33.6. This is a 65% drop from the 1440p figure, underscoring that the GPU is struggling to maintain throughput as pixel demand quadruples. The scaling is not linear with pixel count, indicating that the card’s resources are exhausted well before the CPU can demonstrate its potential. The frame rate at 4K Low is even lower than the 1080p Ultra result of 55.9 FPS, highlighting the severe cost of pushing this GPU to its limits.

The pattern across all settings presets is consistent. The gap between 1080p and 1440p is significant, but the gap between 1440p and 4K is even more punishing. For instance, at High settings, the performance drops from 66.1 FPS at 1080p to 43.5 FPS at 1440p, and then falls to 22.2 FPS at 4K. This data indicates that the RX 570 is the sole performance arbiter; the CPU's capability is effectively masked by the GPU's inability to render frames quickly enough at higher resolutions. The benchmark results clearly show that this combo is designed for 1080p gaming, with any move to higher resolutions resulting in a dramatic and immediate loss of fluidity.

GPU Role

The AMD Radeon RX 570 is the defining component in this system's gaming performance. With a 4 GB GDDR5 memory buffer on a 256-bit bus, the card provides a bandwidth of 224.0 GB/s. This is a modest amount by modern standards, and the measured FPS suggests that memory capacity and bandwidth are significant constraints, especially at higher settings where texture detail increases. The card's architecture, GCN 4.0 on a 14 nm process, is from a different era than the CPU, and its performance characteristics reflect that.

The GPU's clock speeds, with a base of 1168 MHz and a boost of 1244 MHz, are relatively low. This limits the card's compute throughput, which is rated at 5.095 TFLOPS for FP32 operations. The data shows that this raw compute power is insufficient for high-refresh-rate gaming at 1080p with maximum settings. At 1080p Ultra, the average FPS is 55.9, which is playable but not competitive. The card’s pixel rate of 39.81 GPixel/s and texture rate of 159.2 GTexel/s are also likely bottlenecks, as evidenced by the significant frame rate drops when settings are increased from Low to Ultra at any given resolution.

The RX 570's position in the benchmark database is interesting, with a percentile ranking of 74 against all GPUs. Its average benchmark score of 30158 places it in close competition with modern cards like the NVIDIA GeForce RTX 5060, which has a deltaPct of only 0.2. This suggests that in synthetic workloads, the older card holds its own, but the real-world gaming data tells a different story. The low memory capacity and lack of modern feature support likely hamper its performance in a game like Doom, which can be demanding on VRAM at higher settings. The GPU is clearly the anchor, and its 150 W TDP and 450 W suggested PSU are the only power considerations that matter here.

CPU Role

The AMD Ryzen 5 7500F is a modern 6-core, 12-thread processor based on the Zen 4 architecture. With a base clock of 3.70 GHz and a boost clock of 5.00 GHz, it possesses substantial single-thread and multi-thread capability. Its benchmark scores are strong, with a Cinebench R23 multi-core score of 22799 and a single-core score of 3218. This processing power is far beyond what the RX 570 can utilize in Doom at the tested resolutions.

The data suggests that the CPU is never the bottleneck in this configuration. At 1080p Low, where the GPU load is relatively light, the CPU still manages to deliver 96 FPS, but the frame rate is ultimately capped by the GPU's rendering speed. The CPU's potential is visible in its ability to maintain high frame rates at lower resolutions, but as resolution increases and the GPU takes longer to render each frame, the CPU's utilization likely decreases, and the FPS drops correspondingly. The performance difference between the 1080p Low (96 FPS) and 1440p Low (57.4 FPS) is a direct result of the GPU's workload, not a CPU limitation.

The CPU's percentile ranking of 82 against all CPUs and its average benchmark score of 24993 place it in a strong position. Its nearest rivals, such as the AMD Ryzen 7 2700X and the Intel Core i7-11850H, have average scores within 0.4% of the 7500F. This indicates that the CPU is a high-performing part, but in this specific game and with this specific GPU, its advantages are largely irrelevant. The 32 MB of shared L3 cache and high boost clock are excellent for gaming, but they cannot compensate for the GPU's inability to process frames faster. The CPU is effectively waiting on the GPU, making this a textbook case of a GPU-bound system.

How This Combo Ranks

In the database of tested combinations, this pairing of the Ryzen 5 7500F and RX 570 ranks at 1591 out of 1681 combos. This places it in the bottom 6% of all tested systems for this game, a position that reflects the significant imbalance between the CPU and GPU. The rank is a direct consequence of the GPU's performance ceiling, which prevents the powerful CPU from demonstrating its full potential.

This low ranking is not a reflection of the CPU's ability, but rather a statement about the overall system's gaming performance. While the CPU is a top-tier part, the GPU is an older, budget-oriented model that holds the system back. The combo rank highlights that for a game like Doom, the graphics card is the single most important factor, and a high-end CPU cannot rescue a system with a weak GPU. The data shows that this configuration is severely limited, and its performance is comparable to systems with much older CPUs but more balanced GPU pairings. This is a critical insight for users considering a CPU upgrade on an older system: the GPU must be upgraded in tandem to see any meaningful FPS gains.

Settings Recommendations

Based on the measured FPS data, the ideal settings for this combination prioritize resolution over graphical fidelity. At 1080p, the Low preset delivers an average of 96 FPS, which is the best path to a smooth, high-refresh-rate experience. This is the only setting that approaches the 100 FPS mark necessary for competitive play on a 144Hz monitor. The Medium preset at 1080p is also viable, with an average of 81.5 FPS, offering a balance between visual quality and performance.

The High and Ultra presets at 1080p should be avoided if frame rate is the primary goal. High yields 66.1 FPS, and Ultra drops to 55.9 FPS, both of which are playable but far from ideal for a fast-paced FPS. At 1440p, only the Low preset, with an average of 57.4 FPS, is acceptable for casual play. The Medium preset at 54.7 FPS is borderline, but the High and Ultra presets, at 43.5 and 36.8 FPS respectively, are too sluggish for a responsive experience. The 4K resolution is not recommended for any preset, as even the Low setting only averages 33.6 FPS, which is unplayable.

The best experience per the measured rows is clearly at 1920x1080 with the Low preset. This configuration provides the highest average FPS and ensures the game remains fluid. Users who prefer better visuals can opt for Medium at 1080p, accepting a 15% performance hit. The data indicates that this GPU is simply not capable of handling higher resolutions or settings in Doom without significant compromises, making the Low preset at 1080p the only sensible choice for a consistent and responsive gaming session.