Doom

Resolution Scaling — how FPS drops from 1080p to 4K and what it says about the limiting component

The measured frame rates across resolutions tell a clear story about where this system’s bottleneck shifts. At 1080p with Low settings, the combo delivers 330.4 FPS, which drops to 240.7 FPS at 1440p and further to 131.5 FPS at 4K. That is a 60% reduction from 1080p to 4K at Low settings — a steep decline that indicates the GPU is becoming the primary constraint as pixel count rises.

However, the scaling pattern is not uniform across settings presets. At Ultra settings, the drop from 1080p to 4K is from 222.1 FPS down to 78.1 FPS — a 65% reduction. The slightly larger percentage drop at Ultra suggests that the heavier graphical load amplifies the GPU’s role even more decisively. The data implies that at 1080p, even with Ultra settings, the CPU has enough headroom to keep feeding frames, but the GPU starts to buckle under 4K Ultra’s demands.

What is particularly telling is the gap between Low and Ultra at each resolution. At 1080p, the spread is 108.3 FPS (from 222.1 to 330.4). At 1440p, the spread narrows to 98.0 FPS (from 142.7 to 240.7). At 4K, the spread compresses to 53.4 FPS (from 78.1 to 131.5). This compression at higher resolutions is a classic sign that the GPU is the limiting factor — when the GPU is saturated, tweaking settings has less impact on absolute FPS because the hardware is already working near its ceiling.

The 4K results are particularly interesting: even at Low settings, the system only reaches 131.5 FPS, which is below the 1440p Ultra result of 142.7 FPS. This suggests that 4K resolution itself imposes a fixed cost that no amount of graphical simplification can overcome with this GPU. The data points toward the RTX 4070 Ti SUPER being the dominant factor in 4K performance, while the Ryzen 5 5600G’s six cores remain largely underutilized at that resolution.

GPU Role — VRAM, clocks, and how they relate to this game's results

The NVIDIA GeForce RTX 4070 Ti SUPER brings substantial resources to this 2016 title. With 16 GB of GDDR6X memory on a 256-bit bus, the card offers 672.3 GB/s of bandwidth — far more than a game like Doom would require, given its age and relatively modest texture sizes. The memory clock runs at 1313 MHz with 21 Gbps effective speed, while the GPU boost clock reaches 2610 MHz on the Ada Lovelace architecture.

These specifications translate directly to the measured results. The high memory bandwidth ensures that even at 4K Ultra, where texture streaming demands are highest, the card never appears to stall on memory throughput — the 78.1 FPS result at 4K Ultra is still perfectly playable, and the smooth scaling between settings suggests no VRAM capacity issues. With 16 GB available, the game’s largest texture pools fit comfortably, and the data shows no anomalous drops that would indicate memory swapping.

The GPU’s compute capabilities are equally generous. With 8448 shading units, 264 TMUs, and 96 ROPs, the card delivers 44.10 TFLOPS of FP32 performance. Given that Doom is built on the id Tech 6 engine with its Vulkan-based renderer, this raw compute power helps explain why even at 4K High the system maintains 98.8 FPS. The pixel rate of 250.6 GPixel/s and texture rate of 689.0 GTexel/s are more than sufficient for a game that, while visually demanding for its era, does not push modern GPUs to their absolute limits.

The GPU’s 86th percentile ranking among all GPUs in the database, with an average benchmark score of 48704, places it well above the midrange. Its nearest rivals include the NVIDIA CMP 50HX with a score of 49071 (0.7% higher) and the RTX A2000 at 47915 (1.6% lower). This positioning suggests the card is a high-end performer, and the Doom results reflect that — even the lowest measured FPS (78.1 at 4K Ultra) would be considered smooth by most standards.

FAQ

Q: What is the highest average FPS this combo achieves in Doom?

A: The highest measured average is 330.4 FPS at 1920x1080 with Low settings.

Q: Is 4K gaming viable with this setup?

A: Yes. At 4K Ultra the combo delivers 78.1 FPS, and at 4K High it reaches 98.8 FPS. Both are above the 60 FPS threshold for smooth play.

Q: How much performance is lost when going from 1080p to 4K at the same settings?

A: At Low settings, the drop is from 330.4 to 131.5 FPS (a 60% reduction). At Ultra settings, it drops from 222.1 to 78.1 FPS (a 65% reduction).

Q: Does the CPU or GPU limit performance more in this game?

A: The data indicates the GPU becomes the limiting factor at higher resolutions. The FPS gap between Low and Ultra narrows from 108.3 FPS at 1080p to just 53.4 FPS at 4K, showing GPU saturation.

Q: What is the combo’s overall ranking among tested systems?

A: This combo ranks 243rd out of 1681 tested combinations for Doom, placing it in the top 15% of all tested systems.

Q: Is there a settings preset that provides a particularly large FPS jump?

A: Moving from Ultra to High at 1440p yields a jump from 142.7 to 177.6 FPS (a 24% increase), while the jump from High to Medium is smaller at 211.5 FPS.

Measured FPS Breakdown

At 1920x1080, the combo delivers exceptional performance across all settings. The Low preset achieves 330.4 FPS, Medium reaches 315.5 FPS, High hits 275 FPS, and Ultra still manages a very strong 222.1 FPS. The differences between Low and Medium are relatively modest at 14.9 FPS, suggesting that the game’s medium settings are not particularly demanding on this hardware.

Moving to 2560x1440, the performance remains high but shows more differentiation between presets. Low produces 240.7 FPS, Medium drops to 211.5 FPS, High reaches 177.6 FPS, and Ultra falls to 142.7 FPS. The gap between Ultra and High is 34.9 FPS, which is the largest single-step difference at this resolution — indicating that the Ultra preset introduces significant additional graphical work.

At 3840x2160, the results become more GPU-bound. Low achieves 131.5 FPS, Medium delivers 111.4 FPS, High reaches 98.8 FPS, and Ultra drops to 78.1 FPS. The scaling here is nearly linear, with each preset step costing roughly 10-20 FPS. This linearity is consistent with a GPU that is fully saturated and responding predictably to incremental load increases.

Notably, the 4K Low result (131.5 FPS) is still higher than the 1440p Ultra result (142.7 FPS) by a small margin — actually, it is slightly lower, meaning 4K Low is just 11.2 FPS below 1440p Ultra. This proximity suggests that resolution has a larger impact on performance than settings for this particular game and hardware combination.

CPU Role — cores, clocks, and how they relate to this game's results

The AMD Ryzen 5 5600G provides six cores and twelve threads based on the Zen 3 architecture, running at a base clock of 3.90 GHz with a boost up to 4.40 GHz. This is a capable mid-range processor with a 78th percentile ranking among all CPUs, and its average benchmark score of 19983 places it just 0.2% above the Intel Core i7-11600H (19949) and 0.2% below the Intel Core i7-11800H (20024).

In Doom, the CPU’s role appears secondary to the GPU at most settings, but it is not irrelevant. The game is known for its efficient multi-threading, and the 12 threads available here are sufficient to avoid bottlenecking the GPU at 1080p. The fact that 1080p Low achieves 330.4 FPS — a rate that would challenge many CPUs — indicates the 5600G’s single-thread performance is adequate for this title’s demands.

The CPU’s memory bandwidth of 51.2 GB/s (dual-channel DDR4) may be a subtle constraint at very high frame rates. At 330 FPS, the CPU must process frame data quickly enough to feed the GPU, and the 16 MB of L3 cache helps keep frequently accessed data close. The Cinebench R23 multicore score of 16758 and single-core score of 2365 suggest a processor that is well-balanced for gaming workloads.

However, the data shows that at 4K, the CPU’s performance becomes largely irrelevant. The 4K results across all settings are tightly clustered between 78.1 and 131.5 FPS, and the GPU is clearly the limiting factor. Even at 1440p, the CPU appears to have headroom — the 240.7 FPS at Low settings is likely near the CPU’s practical limit for this game, but it is still high enough that most users would never notice a constraint.

Settings Recommendations

For users prioritizing maximum frame rates at 1080p, the Low preset at 330.4 FPS is the clear choice, though the Medium preset at 315.5 FPS offers a better visual experience for only a 4.5% performance penalty. The High preset at 275 FPS is also viable for competitive play, while Ultra at 222.1 FPS remains well above any display’s refresh rate.

At 1440p, the recommendation shifts based on display capabilities. For 144Hz displays, the High preset at 177.6 FPS provides ample headroom, while the Medium preset at 211.5 FPS is even safer. The Ultra preset at 142.7 FPS just barely misses the 144Hz mark, so users with high-refresh 1440p monitors should consider High as the sweet spot. For 60Hz displays, any preset works, but Ultra at 142.7 FPS offers the best visual quality without any perceptible downside.

At 4K, the choices are more constrained. The High preset at 98.8 FPS provides excellent visual fidelity while staying comfortably above 60 FPS. The Medium preset at 111.4 FPS offers a modest performance boost with slightly reduced visuals, and even Low at 131.5 FPS remains smooth. The Ultra preset at 78.1 FPS is still playable but represents a significant drop from High, so the data suggests High as the optimal 4K choice for balancing quality and performance.

How This Combo Ranks

This AMD Ryzen 5 5600G + NVIDIA GeForce RTX 4070 Ti SUPER combination ranks 243rd out of 1681 tested combinations for Doom, placing it in the top 14.5% of all systems tested. This is a strong showing, though not elite — the rank reflects that while the GPU is high-end, the CPU is mid-range, and the combination lands in the upper echelon without breaking into the top tier.

The ranking makes sense given the hardware profile. The RTX 4070 Ti SUPER’s 86th percentile GPU ranking (average score 48704) is the primary driver of this position, while the 5600G’s 78th percentile CPU ranking (average score 19983) holds the combo back from higher placement. The delta between these two components — a top-tier GPU paired with a mid-range CPU — is visible in the data, particularly at 1080p where the CPU’s limitations are more likely to surface.

Compared to other combos, this system excels in scenarios where GPU load is high. The 4K results are particularly strong for the price point, and the combo’s ability to maintain 98.8 FPS at 4K High places it well above the median tested system. The 243rd rank out of 1681 means the vast majority of tested combinations perform worse, and the data suggests that users looking for high-refresh 1440p or smooth 4K gaming would find this combo well-suited to their needs.