The Long Drive

The Intel Core i5-9400 and NVIDIA GeForce RTX 3080 pairing produces a dramatic performance curve in The Long Drive, where the GPU’s raw power is increasingly constrained by the CPU as resolution drops. At 4K Ultra, the combo manages 37.3 FPS, which is barely playable, but the data indicates the bottleneck shifts decisively based on settings. The gap between Low and Ultra at 4K is 60.2 FPS, showing that the RTX 3080 has substantial headroom when graphical load is reduced. However, the scaling pattern suggests that at 1080p, the i5-9400’s six cores become the limiting factor, as the frame rate ceiling appears capped well below what the GPU could theoretically deliver.

Resolution Scaling

The measured FPS data reveals a classic resolution scaling pattern where the RTX 3080 dominates at lower resolutions but the CPU begins to throttle performance as pixel count rises. At 1920x1080 with Low settings, the combo hits 219.4 FPS, which is the highest score recorded across all tests. Yet this number is telling: the difference between 1080p Low and 1440p Low is 39.9 FPS (179.5 FPS), a substantial drop that points to the GPU becoming more engaged. At High settings, the 1080p result of 137.8 FPS drops to 90.9 FPS at 1440p, a 46.9 FPS decline that shows the RTX 3080’s pixel throughput being taxed.

The most revealing metric is the 4K performance. At 4K High, the combo produces 49.1 FPS, which is only 4.1 FPS above the 1440p Ultra result of 61.5 FPS when compared proportionally. This indicates that at 4K, the GPU is the primary limiter, as the frame rate scales nearly linearly with resolution. The 4K Low result of 97.5 FPS versus the 4K Ultra result of 37.3 FPS shows a 60.2 FPS spread, which is the largest delta of any resolution. This suggests that the RTX 3080’s 10 GB of GDDR6X memory and 760.3 GB/s bandwidth are sufficient to handle the data load, but the shading units are overwhelmed by the 3840x2160 pixel count at higher presets.

At 1080p, the story reverses. The difference between Low (219.4 FPS) and Medium (206.8 FPS) is only 12.6 FPS, while the jump from Medium to High (137.8 FPS) is a massive 69 FPS drop. This non-linear scaling strongly indicates that the CPU is becoming the bottleneck at 1080p Medium and above, since the RTX 3080 should easily handle these settings. The i5-9400’s 2.90 GHz base clock and 4.10 GHz boost clock, combined with its 9 MB shared L3 cache, appear insufficient to feed the GPU at lower resolutions. The 1440p data reinforces this: the gap between Low (179.5 FPS) and Medium (144.2 FPS) is 35.3 FPS, which is less severe than the 1080p gap, suggesting the GPU is beginning to catch up as the pixel workload increases.

The Ultra preset at 1080p (95.2 FPS) versus 1440p Ultra (61.5 FPS) shows a 33.7 FPS drop, which is a 35.4% reduction. This is consistent with GPU-bound behavior, since the pixel count increases by 77% from 1080p to 1440p, but the frame rate only falls by 35.4%, indicating that the CPU is still partially limiting at 1080p Ultra. At 4K Ultra, the 37.3 FPS result is nearly half the 1440p Ultra score, confirming that the RTX 3080 is fully saturated at that resolution.

Settings Recommendations

For the best balance of visual fidelity and playable frame rates, the Medium preset at 2560x1440 emerges as the strongest option. The data shows 144.2 FPS at 1440p Medium, which is 53.3 FPS higher than the 1440p High result of 90.9 FPS. This 37% improvement in frame rate comes with a modest visual compromise, and the 144.2 FPS score is well above the 60 FPS threshold for smooth driving simulation. At 1080p, the Medium preset delivers 206.8 FPS, which is only 12.6 FPS less than Low, making it the highest-quality preset that remains consistently above 200 FPS.

The High preset is problematic at higher resolutions. At 4K High, the 49.1 FPS result is below the 60 FPS target, and at 1440p High, the 90.9 FPS score is acceptable but leaves 53.3 FPS on the table compared to Medium. The Ultra preset should be avoided at 4K, where the 37.3 FPS result is stutter-prone, and even at 1440p Ultra, the 61.5 FPS score barely reaches playable levels. For users with high-refresh-rate monitors, 1080p Low at 219.4 FPS or 1080p Medium at 206.8 FPS are the only options that fully utilize a 144Hz display, but the 1440p Medium result of 144.2 FPS is the best compromise for image quality and performance.

The data suggests that the i5-9400 limits the RTX 3080 at 1080p High, where the 137.8 FPS result is only 42.6 FPS higher than the 1440p High result of 90.9 FPS, despite a 56% increase in pixel count. This means that 1440p Medium is the sweet spot where the CPU and GPU are more balanced. At 4K, even Low settings (97.5 FPS) outperform 1440p Ultra (61.5 FPS), which is counterintuitive but indicates that the GPU’s shading units are the primary constraint at that resolution.

FAQ

*Q: What is the best resolution for this combo in The Long Drive?*

A: The data shows 2560x1440 with Medium settings produces 144.2 FPS, which is the highest frame rate at a resolution above 1080p. This provides 53.3 FPS more than 1440p High and 82.7 FPS more than 1440p Ultra.

Q: Does the CPU bottleneck the GPU in this game?

A: Yes, at 1080p, the gap between Medium (206.8 FPS) and High (137.8 FPS) is 69 FPS, which indicates the i5-9400’s six cores cannot sustain the GPU’s output at higher settings. The 4K results show a more linear scaling, suggesting the GPU becomes the limiter at that resolution.

Q: Is the RTX 3080’s 10 GB VRAM sufficient for 4K Ultra?

A: The 4K Ultra result of 37.3 FPS suggests the GPU is compute-limited, not VRAM-limited, since the 10 GB GDDR6X memory with 760.3 GB/s bandwidth is sufficient to load textures. The low frame rate is due to the 8704 shading units being overwhelmed.

Q: How does the combo rank among all tested configurations?

A: This pairing ranks 592 out of 1734 tested combos, placing it in the 65.8th percentile of all configurations. This is a mid-pack result, reflecting the CPU’s age relative to the GPU’s performance.

Q: What settings should be avoided?

A: The Ultra preset at 4K (37.3 FPS) and 1440p Ultra (61.5 FPS) are the only configurations that fall below or barely meet the 60 FPS threshold. The 1080p Ultra result of 95.2 FPS is playable but represents a 111.6 FPS drop from 1080p Low.

Q: Does the game scale well with graphical presets?

A: The scaling is inconsistent. At 1080p, Low to Medium only costs 12.6 FPS, but Medium to High costs 69 FPS. At 4K, Low to Medium costs 14.7 FPS, but Medium to High costs 33.7 FPS. This indicates the CPU bottleneck at low resolution and GPU bottleneck at high resolution.

How This Combo Ranks

The Intel Core i5-9400 and NVIDIA GeForce RTX 3080 combination ranks 592 out of 1734 tested combos in The Long Drive, placing it in the 65.8th percentile of all configurations. This is a respectable but not top-tier result, given that the RTX 3080 is a high-end GPU while the i5-9400 is a mid-range processor from 2018. The ranking suggests that the CPU’s six-core, six-thread configuration with a 2.90 GHz base clock limits the overall performance potential, especially at lower resolutions where the frame rates are highest.

In comparison to other combos, the RTX 3080’s percentileVsAllGpus of 80 indicates it is in the top 20% of all GPUs, while the i5-9400’s percentileVsAllCpus of 50 places it exactly at the median. This mismatch explains why the combo’s overall rank is 592 out of 1734, rather than higher. The CPU’s nearest rivals include the Intel Core i3-10305 (0.2% faster), Intel Core i3-1125G4 (0.2% faster), and Intel Xeon E-2134 (0.4% faster), all of which are close in average benchmark scores. The Intel Core i7-8809G is 0.6% slower, which shows that the i5-9400 is in a crowded performance bracket.

The ranking data indicates that the RTX 3080 is not the limiting factor in most scenarios, as its GPU benchmark scores (e.g., 3DMark Steel Nomad DX12 score of 4407) are strong. Instead, the i5-9400’s Cinebench R23 multicore score of 7969 and single-core score of 1125 suggest that the CPU cannot consistently feed the GPU at high frame rates. The 1080p Medium result of 206.8 FPS versus the 1080p High result of 137.8 FPS shows a 69 FPS drop, which is a 33.4% reduction purely from changing one preset level, confirming the CPU’s role as the performance ceiling.

GPU Role

The NVIDIA GeForce RTX 3080 is the dominant component in this pairing, driving most of the performance at higher resolutions. Its 8704 shading units, 272 TMUs, and 96 ROPs are responsible for the pixel and texture throughput that scales with resolution. The 10 GB of GDDR6X memory operates at 19 Gbps effective, delivering 760.3 GB/s of bandwidth across a 320-bit bus, which is more than sufficient for The Long Drive’s textures at all tested settings. The GPU’s base clock of 1440 MHz and boost clock of 1710 MHz are relatively high, and the data suggests that at 4K, the RTX 3080 is the limiting factor.

At 4K Low, the combo achieves 97.5 FPS, which is 60.2 FPS higher than 4K Ultra (37.3 FPS). This 2.6x improvement in frame rate from lowering settings indicates that the GPU’s shading units are the primary constraint at 4K, not the memory or bandwidth. The 4K Medium result of 82.8 FPS is 33.5 FPS higher than 4K High (49.1 FPS), further confirming that the GPU’s compute resources scale inversely with graphical complexity. The RTX 3080’s 29.77 TFLOPS FP32 performance is the theoretical peak, but the measured results show that the game engine cannot fully utilize this capability at 4K Ultra.

The GPU’s role diminishes at 1080p, where the CPU becomes the bottleneck. The 1080p Low result of 219.4 FPS is the highest measured, but the 1080p Medium result of 206.8 FPS is only 12.6 FPS lower, suggesting that the GPU has plenty of headroom. The 1080p High result of 137.8 FPS is 69 FPS lower than Medium, which is a 33.4% drop that cannot be explained by GPU limitations alone. This indicates that the i5-9400’s processing power is the limiting factor at 1080p High, as the RTX 3080’s 465.1 GTexel/s texture rate and 164.2 GPixel/s pixel rate should easily handle that workload. The GPU’s 80th percentile ranking among all GPUs underscores its capability, but the combo’s 592nd rank out of 1734 shows that the CPU holds it back in this specific title.