Lockdown Protocol

# Lockdown Protocol with AMD Ryzen 5 8400F + AMD Radeon RX 6750 XT

The AMD Ryzen 5 8400F paired with the AMD Radeon RX 6750 XT delivers a solid 1080p and 1440p experience in Lockdown Protocol, with the data showing a clear transition from GPU-bound to CPU-bound behavior as resolution drops. At 4K Ultra, the combo manages 47.1 FPS average, while dropping to 1080p Low pushes the frame rate to 202.2 FPS average. This combination ranks 786th out of 1637 tested combos in this game, placing it in the upper-middle tier of the database. The measured results reveal that the RX 6750 XT's 12 GB memory and 432.0 GB/s bandwidth become increasingly important as resolution rises, while the Ryzen 5 8400F's 6-core, 12-thread configuration with a 4.70 GHz boost clock provides sufficient headroom at lower resolutions.

Resolution Scaling

The frame rate scaling from 4K to 1080p demonstrates how the balance of component workload shifts with pixel count. At 4K Ultra, the system produces 47.1 FPS average, which rises to 56.6 FPS at High settings — a 20.2% improvement from merely reducing quality one step. Dropping to Medium yields 68.8 FPS, and Low settings produce 93.4 FPS at 4K, indicating that the GPU is the primary limiter at this resolution across all quality presets.

Moving to 1440p, the data shows a substantial jump in performance. At Ultra, the average FPS climbs to 69.8, which is 48.2% higher than the 4K Ultra result. High settings at 1440p reach 93.3 FPS, nearly matching the 4K Low result of 93.4 FPS. This near-parity suggests that at 1440p High, the system begins to encounter a different bottleneck than at 4K, where the GPU's pixel throughput and memory bandwidth are more heavily taxed.

At 1080p, the scaling pattern changes character entirely. The Low preset achieves 202.2 FPS average, which is 116.8% higher than the 4K Low result — a massive improvement that indicates the GPU has substantial headroom at this resolution. The gap between 1080p Low and 1080p Ultra is 106.8 FPS, whereas the same preset gap at 4K is only 46.3 FPS. This widening delta confirms that at 1080p, the CPU's capabilities become more relevant, as the RX 6750 XT can render frames faster than the Ryzen 5 8400F can feed it in lower-quality settings. The 1080p High result of 126.9 FPS versus 1440p High at 93.3 FPS shows a 36.0% improvement from resolution reduction alone, which is less dramatic than the 65.9% improvement seen when comparing 4K High to 1440p High.

GPU Role

The Radeon RX 6750 XT, built on RDNA 2.0 architecture with a 7 nm process, brings 2560 shading units and 64 ROPs to bear on Lockdown Protocol. Its boost clock of 2600 MHz and game clock of 2495 MHz provide the raw compute throughput, with FP32 performance rated at 13.31 TFLOPS. The 12 GB of GDDR6 memory on a 192-bit bus delivers 432.0 GB/s of bandwidth, which becomes a critical factor at 4K where texture and geometry data demands increase substantially.

The GPU's 79th percentile ranking among all GPUs places it near competitors like the NVIDIA GeForce RTX 3080, which scores only 1.3% higher in average benchmark score. The measured FPS data shows the RX 6750 XT handling 4K High at 56.6 FPS, which is playable but not ideal for competitive FPS play. At 1440p High, the card delivers 93.3 FPS, suggesting that this resolution represents a sweet spot where the GPU's 12 GB memory capacity and bandwidth can be fully utilized without hitting the frame rate ceiling imposed by the CPU.

The texture rate of 416.0 GTexel/s and pixel rate of 166.4 GPixel/s help explain why the card maintains playable frame rates even at 4K Medium (68.8 FPS) and 4K Low (93.4 FPS). The DirectX 12 Ultimate support with 12_2 feature level ensures modern rendering techniques are available, though the PassMark DirectX 12 score of 80 is notably lower than the DirectX 11 score of 180, suggesting the card may be better optimized for legacy APIs in some workloads. The 40 ray accelerators provide ray tracing capability, though Lockdown Protocol's performance at 4K Ultra (47.1 FPS) indicates that the most demanding settings still tax the GPU heavily.

CPU Role

The AMD Ryzen 5 8400F, a Zen 4 (Phoenix) part on the AM5 socket, provides 6 cores and 12 threads with a base clock of 4.20 GHz and boost clock of 4.70 GHz. Its 16 MB of shared L3 cache and 1 MB per-core L2 cache give it solid single-threaded performance, reflected in a 3DMark single-thread score of 951 and Cinebench R23 single-core score of 2943. The CPU's 82nd percentile ranking among all CPUs places it near the AMD Ryzen 7 2700X (0% delta) and AMD Ryzen 5 7500F (0.3% delta), indicating comparable overall processing power.

In Lockdown Protocol, the CPU's role becomes most apparent at 1080p Low, where the system reaches 202.2 FPS average. This result suggests the CPU can sustain high frame rates when the GPU is not the limiting factor. The Cinebench R23 multicore score of 20851 and PassMark multithread score of 24530 demonstrate strong multi-threaded capability for a 6-core part, which is relevant for FPS games that may use multiple threads for physics and AI calculations. The CPU's 65 W TDP and 4 nm process node contribute to efficient operation, though power consumption is not a primary factor in frame rate analysis.

The PassMark single-thread score of 3684 and 3DMark 2-thread score of 1874 indicate that the CPU handles lightly-threaded workloads well, which is typical for game logic in FPS titles. However, the data shows that at 1080p High (126.9 FPS) versus 1080p Medium (143 FPS), the CPU is not the sole bottleneck, as quality settings still impact performance. The 1080p Ultra result of 95.4 FPS versus 1440p Ultra at 69.8 FPS shows a 36.7% improvement from resolution reduction, suggesting the GPU still plays a significant role even at lower resolutions when quality is maximized.

Settings Recommendations

Analyzing the measured FPS rows, the optimal experience depends on the target resolution and refresh rate. For 4K displays, the High preset at 56.6 FPS average provides a balanced experience, as Medium (68.8 FPS) offers a 21.6% improvement but with reduced visual fidelity, while Ultra (47.1 FPS) dips below the 50 FPS threshold that many players consider minimum for smooth gameplay. The Low preset at 4K (93.4 FPS) is viable for players prioritizing frame rate over visuals, though the visual compromise may be significant.

At 1440p, the High preset at 93.3 FPS is the recommended choice, as it delivers near-100 FPS performance while maintaining substantial graphical quality. The Medium preset at 106.2 FPS offers a 13.8% improvement for players with 144 Hz displays, and the Low preset at 145.7 FPS nearly saturates a 144 Hz refresh rate. The Ultra preset at 69.8 FPS is acceptable for players who prioritize maximum visual fidelity and have adaptive sync displays, but the 25.2% performance penalty versus High may not justify the visual gains in a competitive FPS.

For 1080p, the Medium preset at 143 FPS represents the best balance for high-refresh displays, as it provides excellent frame rates while retaining moderate visual quality. The High preset at 126.9 FPS is also strong and offers better visuals with only an 11.3% performance reduction. The Low preset at 202.2 FPS is ideal for competitive play where maximum frame rate is paramount, especially for 240 Hz displays, while the Ultra preset at 95.4 FPS is usable but leaves performance headroom unused. The data indicates that 1080p High or Medium, 1440p High, and 4K High are the most balanced settings for their respective resolutions.

FAQ

Q: What is the best resolution for this CPU-GPU combination in Lockdown Protocol?

A: The data shows 1440p High at 93.3 FPS average provides the best balance of visual quality and performance. At 4K High the system drops to 56.6 FPS, while 1080p High reaches 126.9 FPS, so 1440p represents the sweet spot where the RX 6750 XT's 12 GB memory and 432.0 GB/s bandwidth are well utilized.

Q: How does the Ryzen 5 8400F compare to its nearest CPU rivals in overall benchmark scores?

A: The Ryzen 5 8400F scores 25064 average, which is 0% different from the AMD Ryzen 7 2700X (25057), 0.1% higher than the AMD Ryzen AI 5 PRO 340 (25099), 0.2% higher than the AMD EPYC 9474F (25103), and 0.3% lower than the AMD Ryzen 5 7500F (24993). This places it in the 82nd percentile of all CPUs.

Q: Is the RX 6750 XT capable of 4K gaming in Lockdown Protocol?

A: Yes, but with caveats. The measured data shows 4K High at 56.6 FPS and 4K Medium at 68.8 FPS, both playable. However, 4K Ultra drops to 47.1 FPS, which may feel sluggish. Players seeking 60+ FPS should use Medium settings at 4K.

Q: What frame rates can I expect at 1080p with this combination?

A: The measured results show 202.2 FPS at Low, 143 FPS at Medium, 126.9 FPS at High, and 95.4 FPS at Ultra. The Low preset exceeds 200 FPS, which suits high-refresh displays, while Ultra remains above 90 FPS.

Q: How does the RX 6750 XT compare to the NVIDIA GeForce RTX 3080?

A: The RX 6750 XT has an average benchmark score of 35327, which is 1.3% lower than the RTX 3080's 35787. The RX 6750 XT sits in the 79th percentile of all GPUs, with the RTX 3080 being its nearest rival in the database.

Q: Does the CPU bottleneck the GPU at lower resolutions?

A: At 1080p Low, the system achieves 202.2 FPS, which is 116.8% higher than 4K Low (93.4 FPS). This massive scaling from resolution reduction indicates the CPU can push frames faster than the GPU at lower resolutions, but the 1080p Ultra result of 95.4 FPS shows the GPU still limits performance when quality settings are maxed.