Doom

# How This Combo Ranks

The AMD Ryzen 5 2600 paired with the AMD Radeon RX 6650 XT lands at rank 1080 out of 1681 tested combos in Doom. That places this configuration in the 64th percentile of all CPU-GPU pairings tested for this title — a solidly mid-pack result, but not one that threatens the upper echelon of high-refresh-rate enthusiasts. The data suggests a system that is clearly capable of smooth play, yet leaves meaningful performance on the table compared to top-tier combinations.

What makes this ranking particularly interesting is the delta between the two components' individual standings. The Ryzen 5 2600 sits at the 77th percentile among all CPUs, while the RX 6650 XT ranks at the 72nd percentile among all GPUs. The combo's 64th-percentile placement in Doom is below both individual percentiles, hinting that this pairing has some degree of bottleneck or inefficiency in this specific game. The question the data raises: is the CPU holding back the GPU, or is Doom's engine simply not extracting the full potential from either part?

Against its nearest rivals in the CPU benchmark database, the Ryzen 5 2600 shows remarkably tight clustering. The Intel Core i5-1345U scores 0.4% lower, the AMD Ryzen 5 7530U scores 0.6% higher, the Intel Core i5-11600KF scores 0.6% lower, and the Intel Core i7-10700F scores 0.7% higher. These sub-1% deltas indicate that the 2600's compute capabilities are essentially on par with a broad swath of modern processors, which makes the combo's mid-pack game ranking more attributable to GPU-side factors or engine-specific behavior than raw CPU weakness.

# GPU Role

The AMD Radeon RX 6650 XT brings 8 GB of GDDR6 memory on a 128-bit bus, yielding 280.3 GB/s of bandwidth. Its memory clock runs at 2190 MHz, effective 17.5 Gbps. The GPU core operates with a base clock of 2055 MHz, a game clock of 2410 MHz, and a boost clock of 2635 MHz. These clock figures are notably high for the RDNA 2.0 architecture, suggesting the card is designed to sustain aggressive frequency levels under load.

In Doom, the GPU's role appears to be the primary driver of frame rate at higher resolutions. The measured data shows a predictable pattern: as resolution increases, average FPS drops consistently across all settings. This is classic GPU-bound behavior. At 1080p, the card's compute resources are sufficient to push frame rates well beyond 144 Hz at lower settings, but at 4K, even High settings dip to 52.4 FPS. The 8 GB frame buffer is adequate for Doom's texture loads at 4K, as evidenced by the game running without apparent VRAM-related stutter in the measured rows, though the data does not explicitly record frame time variance.

The GPU's benchmark profile reinforces its mid-range positioning. Its passmark G3D score of 17166 places it at the 72nd percentile, and its nearest rivals include the AMD Radeon RX 6800M (0% delta), AMD Radeon RX 470 (0.1% delta), Intel Arc A370M (-0.5% delta), and AMD Radeon RX Vega M GH (-0.6% delta). The RX 6650 XT's 10.79 TFLOPS of FP32 compute and 337.3 GTexel/s texture rate are substantial for 1080p and 1440p gaming, but the 4K results suggest the card's 64 ROPS and 128-bit memory interface become limiting factors at that pixel count.

# Resolution Scaling

The measured FPS data reveals how the RX 6650 XT scales with resolution in Doom. Moving from 1080p to 1440p at High settings drops average FPS from 144.9 to 92.8, a 36% reduction. From 1440p to 4K at High, the average falls from 92.8 to 52.4, another 43.5% drop. This non-linear scaling indicates that the GPU is increasingly stressed as pixel count rises, with the 4K results showing the card approaching its practical limits.

At Low settings, the resolution scaling is even more pronounced in absolute terms. The 1080p Low average of 201.8 FPS drops to 129.8 at 1440p (a 35.7% reduction) and then to 72.7 at 4K (a 44% reduction from 1440p). The fact that Low settings at 4K still achieve 72.7 FPS shows that Doom's engine is well-optimized for lower-fidelity rendering even at high pixel counts, but the 4K Low result is still 28% below the 1080p High result of 144.9 FPS.

The scaling pattern strongly suggests the GPU is the limiting component at 4K across all settings. The gap between 1440p and 4K is consistently larger than the gap between 1080p and 1440p, which is typical of a graphics card whose memory bandwidth and ROP throughput become bottlenecks at higher resolutions. At 1080p, however, the CPU may begin to exert influence — the 201.8 FPS Low result approaches the point where the Ryzen 5 2600's single-thread performance could cap frame rates, though the data does not isolate this directly.

# Measured FPS Breakdown

At 1920x1080, the RX 6650 XT delivers its strongest results. Low settings average 201.8 FPS, Medium averages 176.0 FPS, High averages 144.9 FPS, and Ultra averages 118.9 FPS. The spread from Low to Ultra is 82.9 FPS, representing a 41% performance penalty for maximum fidelity. Notably, even at Ultra, the 1080p result exceeds 118 FPS, comfortably clearing 60 Hz and approaching 120 Hz territory.

At 2560x1440, the card remains highly playable across all settings. Low averages 129.8 FPS, Medium averages 114.5 FPS, High averages 92.8 FPS, and Ultra averages 77.8 FPS. The step from High to Ultra at 1440p costs 15.0 FPS (a 16% reduction), while the step from Medium to High costs 21.7 FPS (a 19% reduction). These consistent penalties suggest the GPU's shading units and texture units are being exercised heavily as settings increase.

At 3840x2160, the picture changes dramatically. Low averages 72.7 FPS, Medium averages 59.0 FPS, High averages 52.4 FPS, and Ultra averages 42.7 FPS. Only the Low setting clears 60 FPS at 4K. The Ultra result of 42.7 FPS falls below the 60 FPS threshold, indicating that maximum settings at 4K are not viable for smooth gameplay with this card. The gap between Low and Ultra at 4K is 30.0 FPS, a 41% reduction, mirroring the 1080p spread but at a much lower absolute level.

# FAQ

Q: Is the AMD Ryzen 5 2600 + RX 6650 XT combo capable of 144 FPS gaming in Doom?

A: Yes, but only at 1080p with lower settings. The measured data shows 201.8 FPS at 1080p Low and 176.0 FPS at 1080p Medium, while 1080p High achieves 144.9 FPS — just above the 144 Hz threshold. At 1440p, no setting reaches 144 FPS, with Low topping out at 129.8 FPS.

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

A: The data indicates 1440p is the sweet spot for visual quality versus performance. At 1440p High, the combo averages 92.8 FPS, which is well above 60 FPS and remains smooth on 75 Hz or 100 Hz monitors. At 1440p Ultra, the 77.8 FPS average still clears 60 FPS, making 1440p the highest resolution where all settings remain playable.

Q: How does the RX 6650 XT compare to its nearest GPU rivals in synthetic benchmarks?

A: The RX 6650 XT's average benchmark score of 29024 places it within 0.7% of its nearest rivals. The AMD Radeon RX 6800M scores 29011 (0% delta), the AMD Radeon RX 470 scores 28996 (0.1% delta), the Intel Arc A370M scores 29175 (-0.5% delta), and the AMD Radeon RX Vega M GH scores 29197 (-0.6% delta). These deltas are negligible in real-world gaming.

Q: Does the Ryzen 5 2600 bottleneck the RX 6650 XT at 1080p?

A: The evidence is suggestive but not conclusive. The 1080p Low result of 201.8 FPS is extremely high, and the CPU's single-thread score of 2239 in Passmark is modest by modern standards. However, since the data does not include separate CPU and GPU utilization metrics, the bottleneck cannot be definitively confirmed from the measured FPS alone.

Q: What performance can users expect at 4K Ultra settings?

A: The measured 4K Ultra average is 42.7 FPS, which falls short of the 60 FPS standard for smooth play. This is the only resolution-settings combination in the measured data that drops below 50 FPS. Users targeting 4K should consider reducing settings to Low, which achieves 72.7 FPS.

Q: How does the combo's game ranking compare to its component percentiles?

A: The combo ranks at 1080 out of 1681 tested combinations, placing it in the 64th percentile for Doom. This is below both the CPU's 77th percentile and the GPU's 72nd percentile, suggesting the pairing underperforms relative to what either component achieves individually in other contexts.

# CPU Role

The AMD Ryzen 5 2600 is a 6-core, 12-thread processor based on the Zen architecture, manufactured on a 12 nm process by GlobalFoundries. It operates with a base clock of 3.40 GHz and a boost clock of 3.90 GHz. The CPU's cache hierarchy includes 96 KB of L1 per core, 512 KB of L2 per core, and a shared 16 MB of L3. Its 65 W TDP makes it a power-efficient choice, and data shows it supports DDR4 memory with dual-channel 46.9 GB/s bandwidth.

In Doom, the CPU's role is less prominent than the GPU's, particularly at higher resolutions where the GPU becomes the clear bottleneck. The measured FPS at 4K ranges from 42.7 to 72.7 across settings, while at 1080p it ranges from 118.9 to 201.8. The fact that 1080p Low reaches 201.8 FPS suggests the CPU can feed the GPU adequately at lower pixel counts, but the single-thread performance — a Cinebench R23 single-core score of 1579 and Passmark single-thread score of 2239 — may limit maximum frame rates in lightly-threaded game engines.

The CPU's multi-threaded capabilities are more robust, with Cinebench R23 multi-core scoring 11186 and Passmark multithread scoring 13160. These results indicate the 2600 can handle background tasks and modern game engines that utilize multiple threads. The nearest CPU rivals show the 2600 is not significantly behind newer processors in synthetic benchmarks, with deltas ranging from -0.6% to +0.7%. This suggests that in Doom, the CPU's contribution to the combo's mid-pack ranking is likely secondary to the GPU's performance envelope.

# Settings Recommendations

The measured data provides a clear hierarchy of settings for this combo. At 1080p, the High preset at 144.9 FPS offers an excellent balance — it exceeds 144 Hz for high-refresh-rate monitors while maintaining visual quality above Medium. The Ultra preset at 118.9 FPS is also viable for 120 Hz displays, but the 26 FPS penalty versus High is substantial.

At 1440p, the High preset at 92.8 FPS is the recommended choice for most users, as it provides smooth gameplay on 75 Hz or 100 Hz monitors while preserving the majority of visual fidelity. The Medium preset at 114.5 FPS is preferable for users with 120 Hz 1440p displays, though the visual downgrade is noticeable. The Ultra preset at 77.8 FPS remains playable but may show more frequent frame rate dips in action-heavy scenes.

At 4K, the Low preset at 72.7 FPS is the only measured setting that exceeds 60 FPS, making it the sole viable option for smooth 4K play. The Medium preset at 59.0 FPS is borderline — it technically falls below 60 FPS but may be acceptable for users who prioritize image quality over absolute smoothness. The High and Ultra presets at 52.4 and 42.7 FPS respectively are not recommended for competitive play or fast-paced action.

The overall recommendation is to target 1080p High or 1440p High, depending on monitor resolution and refresh rate. These settings deliver the best measured balance of frame rate and visual quality, with the 1440p High result of 92.8 FPS being the most versatile option for users with modern displays. For users with 4K monitors, the Low preset is the only setting that provides a consistently smooth experience, though the visual trade-off is significant.