Doom

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

The Intel Core i7-12700K brings 12 cores and 20 threads to Doom, with a base clock of 3.60 GHz and a boost clock of 5.00 GHz. This Alder Lake-S part, built on Intel's 10 nm process, sits in the 89th percentile of all CPUs tested, and its 3DMark scores show strong scaling from 1,043 in single-thread to 9,979 at max threads. For a 2016 FPS like Doom, the engine's thread utilization matters more than raw core counts, and this processor's 20 threads provide ample headroom for the game's rendering and physics workloads.

The benchmark data confirms this CPU is not the limiting factor at most settings. At 1080p Low, the combo reaches 197.9 FPS, which is nearly 3.4x the 4K Ultra result of 40.1 FPS. That spread indicates the GPU is the primary constraint as resolution climbs, while the CPU's 5.00 GHz boost clock keeps frame pacing consistent at lower resolutions. The 3DMark 16-thread score of 9,276 and Cinebench R23 multi-core result of 29,241 both reflect a processor that can feed a mid-range GPU without bottlenecking, even in a fast-paced shooter where draw calls and entity updates are frequent.

At 4K, the CPU's advantage narrows. The gap between 4K Low (72 FPS) and 4K High (53.4 FPS) is 18.6 FPS, while the same settings gap at 1080p is 51.7 FPS. This diminishing return with resolution is classic GPU-bound behavior; the i7-12700K's 25 MB of shared L3 cache and dual-channel memory support (DDR4 and DDR5) ensure the GPU receives data without starvation, but the Radeon RX 6650 XT simply cannot maintain high frame rates at 4K Ultra. The data indicates the CPU delivers consistent performance across all tested settings, with the GPU dictating the ceiling in every scenario above 1080p Low.

Settings Recommendations — which preset gives the best experience per the measured rows

For the best balance of visual quality and frame rate, Medium settings at 1080p is the clear recommendation. The measured 174.2 FPS average at 1920x1080 Medium is 76.4% higher than the 4K High result and still 47.6 FPS above 1080p Ultra's 118.8. This preset avoids the steep drop from Medium to Ultra, which costs 55.4 FPS at 1080p — a 31.8% penalty for what is often a marginal visual gain in a fast-paced shooter where motion blur and particle effects dominate.

At 1440p, Medium also delivers a strong experience. The 112.9 FPS average at 2560x1440 Medium is well above the 60 FPS threshold for smooth gameplay, and it outperforms the 1440p High preset by 18.3 FPS. The 1440p Ultra result of 76 FPS is still playable, but the 36.9 FPS gap between Medium and Ultra at this resolution suggests the GPU is already stretched; choosing Medium preserves headroom for intense combat scenes without sacrificing the core visual identity of Doom's hellish environments.

For 4K users, the data shows a difficult trade-off. The 4K Medium result of 60.9 FPS barely clears the 60 FPS mark, while 4K High drops to 53.4 FPS and 4K Ultra falls to 40.1 FPS. The optimal experience at 3840x2160 is Low settings, which produces 72 FPS — a 31.9 FPS improvement over High and an 11.1 FPS gain over Medium. Given that Doom's art direction relies on atmospheric lighting more than texture fidelity, Low at 4K is the only preset that consistently avoids drops below 60 FPS, making it the pragmatic choice for high-resolution displays.

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

The frame rate scaling across resolutions reveals a textbook GPU-bound scenario. From 1080p Low (197.9 FPS) to 4K Low (72 FPS), the drop is 125.9 FPS, a 63.6% reduction. The same comparison at High settings shows 146.2 FPS at 1080p falling to 53.4 FPS at 4K, a 92.8 FPS loss. This steep decline with resolution directly implicates the Radeon RX 6650 XT's pixel throughput as the bottleneck; the CPU's performance remains constant regardless of resolution, so the 4x increase in pixel count from 1080p to 4K overwhelms the GPU's 168.6 GPixel/s pixel rate.

The scaling pattern is not linear, which is revealing. Going from 1080p Medium to 1440p Medium only costs 61.3 FPS (174.2 to 112.9), while the jump from 1440p Medium to 4K Medium costs 52 FPS (112.9 to 60.9). The percentage drops are 35.2% and 46.1% respectively, with the latter being steeper. This suggests the GPU hits a bandwidth or fill-rate wall near the 4K boundary — the 128-bit memory bus and 280.3 GB/s bandwidth are insufficient for the higher resolution's texture and buffer demands.

The Ultra preset amplifies this effect. At 1080p Ultra, the combo still manages 118.8 FPS, which is 78.7 FPS above 4K Ultra's 40.1 FPS. The 4K Ultra result is the only measured configuration that falls below 50 FPS, and it represents a 66.2% reduction from 1080p Ultra. This confirms that Doom's Ultra settings introduce effects that are disproportionately expensive at high resolutions, likely due to the GPU's 8 GB VRAM capacity being taxed by 4K textures and post-processing buffers.

How This Combo Ranks — use comboRankInGame vs other tested combos

The Intel Core i7-12700K paired with the AMD Radeon RX 6650 XT ranks 1,113 out of 1,681 tested combos in Doom. This places the pairing in the bottom third of the database, which is surprising given the CPU's 89th percentile standing and the GPU's 72nd percentile. The rank reflects the GPU's limitations at higher resolutions more than the CPU's capabilities; a top-tier GPU would shift this combination much higher, but the RX 6650 XT's 8 GB VRAM and 10.79 TFLOPS FP32 performance cap the overall result.

In context, the GPU's nearest rivals show a tight cluster. The RX 6650 XT's average benchmark score of 29,024 is essentially tied with the AMD Radeon RX 6800M (29,011, 0% delta), the AMD Radeon RX 470 (28,996, 0.1% delta), and the Intel Arc A370M (29,175, -0.5% delta). This means the combo's ranking is consistent with the GPU's peer group; the i7-12700K is not holding back the RX 6650 XT, as evidenced by the CPU's nearest rival comparisons (e.g., 0.6% ahead of the Intel Core i7-13700T and 0.8% ahead of the Intel Core i7-13800H).

The 1,113th rank out of 1,681 combos is a mid-pack result for a 1080p-focused build. The data shows this combination excels at 1080p Low through Medium, where it achieves frame rates in the 174-198 FPS range, but it falls behind combos with more powerful GPUs at 1440p and 4K. For a game like Doom, which rewards high frame rates, the combo rank reflects a system that is optimized for competitive play rather than visual fidelity at high resolutions.

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

The AMD Radeon RX 6650 XT is the decisive component in this pairing. With 8 GB of GDDR6 memory on a 128-bit bus delivering 280.3 GB/s bandwidth, the GPU has enough VRAM for 1080p and 1440p textures but struggles at 4K Ultra where memory pressure and fill-rate demands spike. The base clock of 2055 MHz and boost clock of 2635 MHz (with a game clock of 2410 MHz) provide the raw compute headroom, and the 2048 shading units produce 10.79 TFLOPS FP32 performance.

The GPU's benchmark scores reflect its mid-range positioning. The 3DMark Steel Nomad DX12 score of 1,859 and Passmark G3D score of 17,166 place it in the 72nd percentile of all GPUs, with nearest rivals including the RX 6800M (0% delta) and RX 470 (0.1% delta). The 64 ROPs and 128 TMUs are sufficient for 1080p gaming, but the 4K results show the pixel rate of 168.6 GPixel/s is the limiting factor — the 4K Ultra average of 40.1 FPS is only 33.8% of the 1080p Ultra result.

The temperature and power characteristics are not measured in the data, but the 176 W TDP and 450 W suggested PSU indicate a power-efficient design. The 7 nm process from TSMC and RDNA 2.0 architecture deliver strong performance per watt, which is why the GPU maintains playable frame rates at 1440p High (94.6 FPS) despite its modest 128-bit memory interface. The RX 6650 XT's end-of-life production status and 17.5 Gbps effective memory speed suggest it is a mature design, and the measured results show it is best suited for 1080p and 1440p gaming, not 4K Ultra.

FAQ

Q: What is the best resolution for this combo in Doom?

A: The data shows 1920x1080 is the optimal resolution. At 1080p Medium, the combo achieves 174.2 FPS, and even 1080p Ultra maintains 118.8 FPS. At 1440p, the best result is 127.2 FPS on Low, while 4K drops below 72 FPS on all settings.

Q: Does the Intel Core i7-12700K bottleneck the RX 6650 XT?

A: No. The CPU ranks in the 89th percentile of all CPUs, and its 3DMark max-thread score of 9,979 indicates ample headroom. The frame rate drops from 1080p to 4K (e.g., 197.9 to 72 FPS on Low) are consistent with GPU-bound behavior, not CPU limitations.

Q: How does the RX 6650 XT compare to its nearest rivals?

A: The GPU's average benchmark score of 29,024 is within 0.6% of the AMD Radeon RX 6800M (29,011) and AMD Radeon RX 470 (28,996). This places it in a tight performance cluster, with no single rival holding a significant advantage.

Q: Can this combo handle 4K gaming in Doom?

A: Only at Low settings, where it averages 72 FPS. At Medium, the average drops to 60.9 FPS, and at High and Ultra it falls to 53.4 FPS and 40.1 FPS respectively. The 4K Ultra result is below the playable threshold for fast-paced FPS.

Q: What is the CPU's launch MSRP?

A: The Intel Core i7-12700K had a launch MSRP of $409. This is the only pricing data available in the measured results.

Q: How does the combo rank overall in the database?

A: The combo ranks 1,113 out of 1,681 tested combinations in Doom. This places it in the lower third, primarily due to the GPU's limitations at high resolutions rather than CPU performance.

Measured FPS Breakdown — resolution by resolution, settings by settings, exact numbers

1920x1080:

• Low: 197.9 FPS
• Medium: 174.2 FPS
• High: 146.2 FPS
• Ultra: 118.8 FPS

At 1080p, the combo delivers exceptional performance across all settings. The gap from Low to Ultra is 79.1 FPS, with the largest single drop occurring between High and Ultra (27.4 FPS). The 1080p Low result of 197.9 FPS is the highest measured frame rate in the entire dataset, making this resolution ideal for high-refresh-rate displays.

2560x1440:

• Low: 127.2 FPS
• Medium: 112.9 FPS
• High: 94.6 FPS
• Ultra: 76 FPS

1440p shows a similar pattern but with compressed absolute numbers. The Low to Ultra spread is 51.2 FPS, and the Medium to High drop is 18.3 FPS. The 1440p Medium result of 112.9 FPS is still competitive with many 1080p configurations, but the Ultra preset's 76 FPS indicates the GPU is approaching its limits.

3840x2160:

• Low: 72 FPS
• Medium: 60.9 FPS
• High: 53.4 FPS
• Ultra: 40.1 FPS

4K is the most demanding environment for this pairing. The Low preset is the only one that clears 60 FPS, while Ultra falls to 40.1 FPS — a 44.3% reduction from Low. The step from Medium to High costs 7.5 FPS, and High to Ultra costs 13.3 FPS, showing that the Ultra preset's additional effects are disproportionately expensive at this resolution. The data indicates 4K is only viable with Low settings for a consistent experience.