Doom

The AMD Ryzen 7 7800X3D and AMD Radeon RX 7900 XT combination delivers exceptional performance in Doom, ranking in the top 21% of all tested combos, with frame rates that remain highly playable even at 4K Ultra settings. The pairing demonstrates a clear GPU-bound scenario at higher resolutions, while the CPU's strong single-thread performance ensures headroom at 1080p.

FAQ

Q: What is the combo's overall rank in Doom?

A: This combination ranks 357th out of 1681 tested combos in Doom, placing it in the top 21% of all systems benchmarked.

Q: How does the CPU compare to its nearest rivals in average benchmark score?

A: The Ryzen 7 7800X3D scores 31580 on average, which is 0.1% ahead of the Intel Core i7-12700F (31543) and 0.3% ahead of the AMD Ryzen 9 5980HX (31495). It also edges out the AMD Ryzen 7 8700G (31407) by 0.6% and the AMD Ryzen 7 7745HX (31402) by 0.6%.

Q: What is the GPU's percentile ranking among all GPUs?

A: The Radeon RX 7900 XT sits in the 82nd percentile of all GPUs, with an average benchmark score of 38358. Its closest rival is the NVIDIA GeForce RTX 5080 Mobile, which scores 38349 (0% delta), while the NVIDIA CMP 70HX scores 38225 (0.3% delta).

Q: What is the difference in FPS between Low and Ultra settings at 1080p?

A: At 1920x1080, the Low preset delivers 337 FPS average, while Ultra drops to 203.4 FPS — a difference of 133.6 FPS, representing a 39.6% reduction from Low to Ultra.

Q: Does the GPU have enough VRAM for 4K gaming in Doom?

A: Yes, the RX 7900 XT features 20 GB of GDDR6 memory on a 320-bit bus with 800.0 GB/s bandwidth. At 3840x2160 Ultra, the combo still produces 69.8 FPS average, indicating ample memory capacity for this title.

Q: How does the CPU's multi-threaded performance compare to its single-thread score?

A: The CPU scores 29149 in Cinebench R23 multi-core versus 4115 in single-core. In 3DMark, it achieves 7967 at max threads versus 959 at single thread, showing a roughly 8.3x scaling from single to multi-threaded workloads.

GPU Role

The Radeon RX 7900 XT is the dominant component in this pairing for Doom, especially at higher resolutions. With 20 GB of GDDR6 memory and a 320-bit bus delivering 800.0 GB/s bandwidth, the GPU has ample resources for even the most demanding texture loads. The card's boost clock of 2394 MHz and game clock of 2025 MHz provide substantial compute throughput, backed by 5376 shading units and 192 ROPs.

The GPU's 82nd percentile ranking among all GPUs reflects its strong position, though its nearest rivals (RTX 5080 Mobile and CMP 70HX) score nearly identically (38349 and 38225 vs 38358). The RX 7900 XT's FP32 performance of 51.48 TFLOPS enables the high frame rates observed in Doom, a game that responds well to raw rasterization power.

At 4K, the GPU becomes the primary bottleneck. The transition from 1080p High (250.9 FPS) to 4K High (87 FPS) shows a 65.3% performance drop, which aligns with the increased pixel count demanding more from the GPU's 459.6 GPixel/s pixel rate. The 20 GB VRAM capacity is never stressed in this title, as even the Ultra preset at 4K maintains fluid gameplay.

Resolution Scaling

The measured FPS data reveals classic resolution scaling behavior with this combo. From 1920x1080 to 2560x1440, the High preset drops from 250.9 to 162.4 FPS — a 35.3% reduction. Moving from 1440p to 3840x2160 High brings another drop to 87 FPS, a 46.4% reduction from the 1440p figure.

This scaling pattern indicates the system becomes increasingly GPU-limited as resolution rises. At 1080p Low (337 FPS), the CPU's 8 cores and 16 threads with a 5.00 GHz boost clock are likely preventing higher frame rates, given the 3DMark single-thread score of 959. The CPU's 96 MB shared L3 cache helps maintain consistent frame pacing in Doom's fast-paced combat.

The 4K Ultra result of 69.8 FPS represents the heaviest load tested, showing a 79.3% drop from the 1080p Low result. This steep decline from 337 to 69.8 FPS across the resolution and settings spectrum confirms that the RX 7900 XT, while powerful, cannot fully overcome the pixel demands of 4K with maximum quality settings in this title.

Measured FPS Breakdown

At 1920x1080, the combo delivers outstanding performance across all presets. Low settings produce 337 FPS average, Medium yields 296.1 FPS, High achieves 250.9 FPS, and Ultra still maintains 203.4 FPS. These numbers indicate that even at the highest settings, the system has substantial headroom for high-refresh-rate displays.

Moving to 2560x1440, performance remains excellent. Low settings hit 221 FPS, Medium reaches 192.1 FPS, High delivers 162.4 FPS, and Ultra drops to 131.6 FPS. The gap between Low and Ultra at this resolution is 89.4 FPS, showing that settings choices have a significant impact on frame rates.

At 3840x2160, the GPU's workload becomes apparent. Low settings still achieve 118.8 FPS, Medium produces 101.6 FPS, High yields 87 FPS, and Ultra falls to 69.8 FPS. The scaling from Low to Ultra at 4K (118.8 to 69.8 FPS) represents a 41.2% reduction, demonstrating that Ultra settings carry a heavy cost at this resolution.

CPU Role

The AMD Ryzen 7 7800X3D provides a strong foundation for this gaming combo. Its 8 cores and 16 threads operate at a base clock of 4.20 GHz and boost to 5.00 GHz, built on the Zen 4 architecture using a 5 nm TSMC process. The 96 MB shared L3 cache is particularly beneficial for gaming workloads, as it reduces memory latency and improves data access patterns.

In CPU benchmarks, the processor shows balanced performance: Cinebench R23 multi-core score of 29149 and single-core of 4115. The 3DMark results reinforce this: 7980 at 16 threads, 7967 at max threads, but only 959 at single thread. The PassMark multi-thread score of 34293 versus single-thread of 3759 indicates strong scaling across cores.

The CPU's percentile ranking of 87th among all CPUs places it above its nearest rivals in average score, though the margins are slim (0.1% to 0.6% over the Intel Core i7-12700F, AMD Ryzen 9 5980HX, Ryzen 7 8700G, and Ryzen 7 7745HX). In Doom specifically, the CPU's role becomes most apparent at 1080p, where the 337 FPS Low result suggests the CPU can feed the GPU efficiently enough to approach the high refresh rate ceiling.

Settings Recommendations

For 1080p gaming, the Ultra preset at 203.4 FPS is the clear choice. It delivers a 46.4 FPS improvement over High (250.9 vs 203.4), and the visual quality gain outweighs the performance cost. Even at 1080p Low (337 FPS), the frame rate exceeds most display refresh rates, so sacrificing visual fidelity for additional frames is unnecessary.

At 2560x1440, the High preset at 162.4 FPS offers the best balance. Ultra at 131.6 FPS is still highly playable, but the 30.8 FPS difference between High and Ultra may be noticeable on high-refresh monitors. Medium at 192.1 FPS provides an alternative for competitive play, though the visual compromise is significant.

For 3840x2160, the High preset at 87 FPS is recommended for the best experience. Ultra at 69.8 FPS is playable but approaches the lower bound of smooth gameplay. Medium at 101.6 FPS offers a smoother experience if visual fidelity can be slightly reduced. Low at 118.8 FPS is the fastest option but sacrifices too much visual quality for the 31.8 FPS gain over High.

How This Combo Ranks

The combo's rank of 357 out of 1681 tested combos places it in the 79th percentile of all systems tested in Doom. This top-tier positioning is driven by the synergy between the CPU's gaming-optimized cache design and the GPU's substantial rasterization power.

The CPU's 87th percentile ranking among all CPUs (31580 average score) and the GPU's 82nd percentile (38358 average score) both contribute to the overall result. The combo outperforms many systems with higher raw component scores due to the 7800X3D's efficient gaming architecture and the RX 7900 XT's well-balanced specifications.

Compared to other combos in the database, this pairing excels at 1080p where the CPU's 5.00 GHz boost clock and large L3 cache prevent bottlenecking. At 4K, the GPU's 20 GB VRAM and 800.0 GB/s bandwidth ensure consistent performance even under maximum settings. The 69.8 FPS 4K Ultra result demonstrates that this combo can handle demanding scenarios, though it falls short of the 144 FPS threshold that would fully leverage high-refresh 4K displays.