Doom

# How This Combo Ranks

The Intel Core Ultra 5 235 paired with the NVIDIA GeForce RTX 3080 lands at rank 787 out of 2930 tested combinations for Doom. That places this combo in the top 26.9% of all tested systems, a solid position for a game that rewards both CPU and GPU throughput. The rank suggests that while this pairing is not at the absolute top tier, it delivers a competitive experience that will satisfy most players seeking high refresh rates.

The CPU itself sits in the 89th percentile among all processors tested, with an average benchmark score of 46062. Its nearest rivals include the AMD Ryzen AI 9 HX 375 (0.1% ahead), the Intel Core i9-13900HX (0.1% behind), and two AMD EPYC server chips (0.2% ahead). These deltas are essentially noise-level differences, meaning the Core Ultra 5 235 performs within a hair of some very capable alternatives. For Doom, which can leverage multiple cores, this CPU's 14 cores and 14 threads provide ample headroom.

On the GPU side, the RTX 3080 holds the 68th percentile among all GPUs, with an average benchmark score of 23172. Its nearest rivals include the NVIDIA P106-100 (0.3% ahead), AMD Radeon Pro Vega 16 (0.3% ahead), AMD Radeon RX 6600M (0.4% ahead), and AMD Radeon R9 M290X (0.4% ahead). These are surprising comparisons — the RTX 3080 is essentially tied with much older or lower-tier parts in aggregate benchmarks, though that aggregate score includes many tests that don't reflect gaming performance. In Doom specifically, the measured FPS tells a much stronger story.

The combination of a top-quartile CPU with a mid-pack GPU creates an interesting dynamic. The data suggests the RTX 3080 is the limiting factor in most scenarios, but the CPU's strength ensures it never becomes the bottleneck. This balance is why the combo ranks as well as it does — the system avoids the severe frame drops that occur when a weak CPU stalls a fast GPU.

# Settings Recommendations

Examining the measured FPS across all settings and resolutions, the data points to Medium as the sweet spot for most users. At 1920x1080, Medium delivers 262 FPS average with a minimum of 223 and maximum of 301 — this is high enough to fully utilize a 240Hz monitor and provides a smooth, stutter-free experience. The jump from Low to Medium costs only 39 FPS (from 301 to 262), while the jump from Medium to High costs another 41 FPS (262 to 221). The visual quality improvement from High to Ultra is not worth the 40 FPS drop (221 to 181).

At 2560x1440, Medium again stands out with 170 FPS average, minimum 144, and maximum 195. This is perfectly suited for 144Hz displays, maintaining the minimum above the refresh rate threshold. High at this resolution offers 143 FPS, which is borderline for 144Hz — any scene complexity could push it below. Ultra drops to 117 FPS, which still feels responsive but sacrifices the headroom that Medium provides.

For 3840x2160, the picture changes. Medium delivers 92 FPS with a minimum of 78 and maximum of 106, which is playable but not ideal for competitive play. High drops to 78 FPS, and Ultra falls to 63 FPS. At 4K, Low offers 105 FPS, which is the only setting that keeps the average above 100. For players prioritizing frame rate over visuals at 4K, Low is the recommended choice; for those wanting a balance, Medium is the best compromise.

The data implies that this combo's ideal configuration depends on the display. For 1080p and 1440p panels, Medium provides the best experience with minimums that stay above refresh rate targets. For 4K, players must decide between visual fidelity (Medium at 92 FPS) or competitive smoothness (Low at 105 FPS). Ultra is only advisable at 1080p for players who prioritize image quality over maximum frame rates.

# Resolution Scaling

The FPS scaling from 1080p to 4K reveals important information about which component limits performance in Doom. At Medium settings, the average FPS drops from 262 at 1920x1080 to 170 at 2560x1440 (a 35.1% decrease), then to 92 at 3840x2160 (a 64.9% decrease from 1080p). This scaling pattern is characteristic of GPU-bound scenarios — as resolution increases, the pixel count grows exponentially, and the GPU must work proportionally harder.

At Low settings, the scaling is even more pronounced: 301 FPS at 1080p, 195 at 1440p (35.2% drop), and 105 at 4K (65.1% drop). The consistent percentage drops across settings suggest that the RTX 3080's rendering throughput is the primary constraint, not memory bandwidth or CPU limitations. The GPU's 10 GB of GDDR6X memory with 760.3 GB/s bandwidth appears sufficient even at 4K, as the frame rates don't collapse catastrophically.

The CPU's role in this scaling is minimal. The Core Ultra 5 235's boost clock of 5.00 GHz and 14 cores provide enough processing power to feed the GPU at all resolutions. If the CPU were the bottleneck, we would expect to see smaller FPS differences between 1080p and 1440p, since the CPU workload doesn't scale with resolution. Instead, the FPS drops consistently with pixel count, confirming the GPU is the limiting factor.

The data also shows that the gap between Low and Ultra settings widens at higher resolutions. At 1080p, Low achieves 301 FPS versus Ultra's 181, a 66.3% advantage for Low. At 4K, Low achieves 105 FPS versus Ultra's 63, a 66.7% advantage. This consistency suggests the settings adjustments scale uniformly with resolution, and the RTX 3080 handles the increased shading and texture work proportionally at each resolution.

# Measured FPS Breakdown

At 1920x1080, the RTX 3080 delivers exceptional performance across all settings. Low achieves 301 FPS average, Medium hits 262 FPS with a minimum of 223 and maximum of 301, High reaches 221 FPS, and Ultra still manages 181 FPS. These numbers indicate that even at the highest settings, the combo exceeds 144Hz refresh rates with room to spare. The minimum FPS at Medium (223) is higher than the average FPS at Ultra (181), showing that the settings impact is substantial.

Moving to 2560x1440, the performance remains strong but begins to show the GPU's limits. Low delivers 195 FPS, Medium provides 170 FPS with a minimum of 144 and maximum of 195, High reaches 143 FPS, and Ultra drops to 117 FPS. The Medium setting's minimum of 144 FPS exactly matches the 144Hz refresh rate, making it a safe choice for competitive play. High at 143 FPS is just below that threshold, suggesting occasional frame pacing issues on 144Hz displays.

At 3840x2160, the RTX 3080's 10 GB memory and 320-bit bus are put to the test. Low achieves 105 FPS, Medium provides 92 FPS with a minimum of 78 and maximum of 106, High reaches 78 FPS, and Ultra drops to 63 FPS. The Medium setting's minimum of 78 FPS is still above 60 FPS, ensuring a playable experience, but players with 4K 120Hz displays will need to use Low to approach that target. The gap between Low and Ultra at 4K is 42 FPS, which is a significant visual-to-performance trade-off.

The data reveals that the RTX 3080 scales almost linearly with resolution. At High settings, the FPS averages are 221 (1080p), 143 (1440p), and 78 (4K). The ratio from 1080p to 1440p is 1.545 (221/143), and from 1440p to 4K is 1.833 (143/78). The slightly larger drop from 1440p to 4K suggests the GPU's memory bandwidth or fill rate becomes more strained at the highest resolution, even though the 760.3 GB/s bandwidth is substantial.

# GPU Role

The NVIDIA GeForce RTX 3080, built on the Ampere architecture with the GA102 chip, uses an 8 nm process from Samsung with 28,300 million transistors on a 628 mm² die. Its 8704 shading units, 272 texture mapping units, and 96 raster output pipelines provide the raw compute for Doom's rendering tasks. The GPU's boost clock of 1710 MHz, up from a base of 1440 MHz, allows it to sustain high performance during extended gaming sessions.

The 10 GB of GDDR6X memory on a 320-bit bus delivers 760.3 GB/s of bandwidth. In Doom, this proves sufficient even at 4K Ultra, where the game's textures and geometry demand significant memory throughput. The fact that the FPS doesn't collapse at 4K suggests the memory subsystem is not a bottleneck — the frame rates decline proportionally with resolution rather than hitting a memory capacity wall.

The RTX 3080's 68 ray tracing cores and 272 tensor cores are not directly relevant to Doom's standard rendering, but they contribute to the GPU's overall compute capabilities. The FP32 performance of 29.77 TFLOPS provides ample shading power for the game's fast-paced action. The pixel rate of 164.2 GPixel/s and texture rate of 465.1 GTexel/s ensure that fill-rate limits are not reached even at 4K with high settings.

The GPU's 320 W TDP and dual-slot design indicate it's a power-hungry card, but the benchmark results justify this consumption. The measured FPS at 1080p Low (301) approaches the theoretical maximum for many displays, showing the card can push well beyond 300 FPS in less demanding scenarios. The data suggests the RTX 3080's performance in Doom is strong for its generation, though its 68th percentile ranking among all GPUs reflects that newer cards have surpassed it.

# CPU Role

The Intel Core Ultra 5 235, part of the Core Ultra Series 2 with Arrow Lake architecture, provides 14 cores and 14 threads with a base clock of 3.40 GHz and boost clock of 5.00 GHz. This configuration is interesting — it offers the core count of a modern mid-range processor but lacks hyperthreading, meaning each core handles one thread. For Doom, which is optimized for multiple cores but doesn't require extreme thread counts, this setup is well-suited.

The CPU's 24 MB of shared L3 cache and 3 MB L2 cache per core provide fast access to frequently used data, reducing latency in game logic and physics calculations. The 102.4 GB/s memory bandwidth with DDR5 support ensures the CPU can feed data to the GPU without becoming a bottleneck. The 3 nm process from TSMC with 17,800 million transistors on a 243 mm² die demonstrates efficiency, though the 65 W TDP is modest for a desktop part.

Benchmark results show the CPU's strengths: Cinebench R23 multi-core score of 14769 and single-core score of 2085, PassMark multi-thread score of 37816, and single-thread score of 4516. These scores place it in the 89th percentile of all CPUs, with its nearest rivals being within 0.2% in average benchmark score. The data compression (390711) and encryption (29293) scores suggest strong integer performance, which benefits game logic and AI calculations.

In Doom, the CPU's role is to maintain consistent frame pacing, especially at lower resolutions where the GPU can render frames quickly. The fact that the combo achieves 301 FPS at 1080p Low indicates the CPU can keep up with the GPU's output rate. At 4K, where the GPU becomes the bottleneck, the CPU has ample headroom. The single-core performance is particularly important for Doom's engine, and the boost clock of 5.00 GHz ensures high single-threaded throughput when needed.

# FAQ

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

A: The data shows 2560x1440 at Medium settings delivers 170 FPS average with a minimum of 144 FPS, which is ideal for 144Hz displays. At 1080p, Medium achieves 262 FPS, but this may exceed what most monitors support. At 4K, even Low settings only reach 105 FPS, so 1440p offers the best balance of visual quality and frame rate.

Q: How does the RTX 3080 compare to its closest GPU rivals?

A: The RTX 3080's average benchmark score of 23172 places it 0.3% behind the NVIDIA P106-100, 0.3% behind the AMD Radeon Pro Vega 16, 0.4% behind the AMD Radeon RX 6600M, and 0.4% behind the AMD Radeon R9 M290X. These are negligible differences, making the RTX 3080 statistically tied with these parts in aggregate benchmarks.

Q: Is the Intel Core Ultra 5 235 CPU sufficient for high FPS gaming?

A: Yes, the CPU's 89th percentile ranking and 5.00 GHz boost clock ensure it can feed the GPU effectively. In Doom, the combo achieves 301 FPS at 1080p Low, demonstrating the CPU is not a bottleneck. Its nearest rivals include the AMD Ryzen AI 9 HX 375 (0.1% ahead) and Intel Core i9-13900HX (0.1% behind).

Q: What FPS can I expect at 4K Ultra settings?

A: At 3840x2160 with Ultra settings, the combo achieves 63 FPS average. This is playable but below the 60 FPS threshold for many competitive players. Medium settings at 4K provide 92 FPS with a minimum of 78 FPS, which is a better balance for most users.

Q: How much performance difference is there between Low and Ultra settings?

A: At 1080p, Low achieves 301 FPS versus Ultra's 181 FPS, a 66.3% advantage for Low. At 1440p, the gap is 195 FPS versus 117 FPS (66.7% advantage). At 4K, Low hits 105 FPS versus Ultra's 63 FPS (66.7% advantage). The percentage gap is remarkably consistent across resolutions.

Q: Does this combo maintain minimum FPS above 60 at all settings?

A: Yes, the lowest minimum FPS recorded is 78 at 4K Medium. All other settings and resolutions have minimums above 100 FPS or only report averages. The data shows no configuration drops below 60 FPS, making this combo capable of smooth performance at all tested settings.