Roblox

Roblox is a notoriously CPU-light title, but the pairing of the AMD Ryzen 7 9700F and NVIDIA GeForce RTX 4070 delivers extraordinary frame rates across all tested configurations. The data shows a system that is overwhelmingly GPU-bound at 4K, but shifts toward a more balanced profile at lower resolutions where the CPU's 8 cores and 16 threads become increasingly relevant. With average frame rates ranging from 124 FPS at 4K Ultra to 503 FPS at 1080p Low, this combination is positioned for high-refresh-rate displays, though the specific bottlenecks shift dramatically depending on the resolution and quality preset selected.

Resolution Scaling

The measured FPS data reveals a clear and predictable scaling pattern as resolution increases from 1920x1080 to 3840x2160. At 1080p with Low settings, the system produces 503 FPS, which drops to 335 FPS at 1440p and further to 190 FPS at 4K. This represents a 62% reduction in frame rate from 1080p to 4K at Low settings, indicating that the GPU is the primary scaling factor even at the lowest quality preset. The pattern holds across all settings, with the High preset showing 404 FPS at 1080p, 270 FPS at 1440p, and 153 FPS at 4K—a 62% drop as well, suggesting consistent GPU-bound behavior.

However, the scaling behavior changes subtly when examining the Ultra preset. At 1080p Ultra, the system achieves 328 FPS, which falls to 219 FPS at 1440p (a 33% reduction) and then to 124 FPS at 4K (a 43% reduction from 1440p). The smaller relative drop between 1080p and 1440p at Ultra settings suggests that the CPU begins to play a more significant role at higher quality presets, where the additional graphical work is distributed more evenly across the processing pipeline. The Ryzen 7 9700F, with its 8 cores and 16 threads, appears to be keeping pace well, but the data indicates that the RTX 4070's 12 GB of GDDR6X memory and 504.2 GB/s bandwidth are the limiting factors at 4K.

The most telling comparison comes from the Medium preset, which includes min/max FPS data. At 1080p Medium, the system averages 457 FPS with a minimum of 389 FPS and a maximum of 526 FPS. At 1440p Medium, the average drops to 305 FPS (33% lower) with a minimum of 259 FPS and maximum of 351 FPS. At 4K Medium, the average is 173 FPS (43% lower from 1440p) with a minimum of 147 FPS and maximum of 199 FPS. The consistency of the minimum-to-maximum spread across resolutions—roughly 70-90 FPS in all cases—suggests that the frame pacing is stable and the bottleneck is not shifting wildly between components.

What the data ultimately shows is that this combination is GPU-limited at 4K across all settings, with the RTX 4070's performance ceiling being the primary constraint. At 1440p, the system becomes more balanced, and at 1080p, the CPU's 3.80 GHz base clock and 5.50 GHz boost clock are sufficient to feed the GPU without significant stalling, as evidenced by the high minimum frame rates at Medium settings.

FAQ

Q: What is the highest average frame rate achievable with this CPU/GPU combo in Roblox?

A: The highest measured average FPS is 503, achieved at 1920x1080 resolution with Low settings. This represents the absolute ceiling for this configuration in the tested scenarios.

Q: How does the 4K Ultra performance compare to 1080p Low?

A: At 3840x2160 Ultra, the system averages 124 FPS, which is just 24.6% of the 503 FPS seen at 1920x1080 Low. This dramatic reduction highlights the GPU-bound nature of the RTX 4070 at 4K resolutions.

Q: Is the Ryzen 7 9700F a bottleneck at any tested resolution?

A: The data suggests the CPU is not a primary bottleneck at any resolution, as even the lowest frame rate recorded (124 FPS at 4K Ultra) remains high. However, the CPU's 8 cores and 16 threads are likely contributing to the strong minimum frame rates seen at Medium settings.

Q: What is the performance difference between Low and Ultra settings at 1440p?

A: At 2560x1440, Low settings produce 335 FPS while Ultra produces 219 FPS, a 34.6% reduction. This gap is larger than the 28.8% reduction seen at 4K (190 FPS to 124 FPS), indicating that the GPU has more headroom at lower resolutions.

Q: How does this combo rank compared to other tested configurations?

A: The combination ranks 666th out of 3010 tested combos in Roblox, placing it in the top 22.1% of all configurations. This is a strong result given the game's relatively low graphical demands.

Q: Does the RTX 4070's 12 GB VRAM affect performance at 4K?

A: The data shows consistent performance at 4K across all settings, with no unusual frame rate drops that would indicate VRAM capacity issues. The RTX 4070's 504.2 GB/s bandwidth appears sufficient for Roblox's demands.

Settings Recommendations

The measured FPS data provides clear guidance for optimizing the gameplay experience. For players with 1080p displays, the High preset at 404 FPS offers an excellent balance of visual quality and performance, particularly for high-refresh-rate monitors (240Hz or higher). The Medium preset at 457 FPS adds a marginal 13% performance boost but reduces visual fidelity without a proportional benefit, making High the better choice for most users. The Low preset at 503 FPS is only necessary for competitive play where maximum frame rates are prioritized over visuals.

At 1440p, the High preset at 270 FPS is the recommended starting point, as it provides smooth gameplay on 144Hz displays while maintaining substantial visual quality. The Ultra preset at 219 FPS is also viable for 144Hz displays, but the 18.9% performance penalty compared to High may not justify the additional graphical effects in a game like Roblox where visual differences can be subtle. The Medium preset at 305 FPS is the best option for 240Hz displays, as it stays above the 240 FPS threshold while offering better visuals than Low.

For 4K displays, the Ultra preset at 124 FPS is playable on 120Hz panels, but the High preset at 153 FPS provides a more comfortable margin above the refresh rate. The Medium preset at 173 FPS is the best overall choice for 4K, as it delivers the highest frame rate that remains above 144Hz while still offering moderate visual enhancements. The Low preset at 190 FPS is unnecessary at this resolution, as the visual degradation is significant and the performance gain over Medium is only 9.8%.

The data suggests that the Medium preset offers the best overall experience across all resolutions, as it consistently provides the highest frame rates that maintain a comfortable margin above common refresh rates while retaining some visual quality. The min FPS data at Medium settings—147 FPS at 4K, 259 FPS at 1440p, and 389 FPS at 1080p—indicates that frame pacing remains stable even during demanding scenes, making this preset the most reliable choice for consistent performance.

Measured FPS Breakdown

At 1920x1080, the system demonstrates exceptional performance across all settings. The Low preset delivers an average of 503 FPS, while Medium produces 457 FPS (with a minimum of 389 FPS and maximum of 526 FPS). High settings achieve 404 FPS, and Ultra drops to 328 FPS. The 34.8% reduction from Low to Ultra at 1080p shows that the RTX 4070 has significant headroom at this resolution, and the CPU's 5.50 GHz boost clock is sufficient to maintain high frame rates even under maximum load.

Moving to 2560x1440, the performance scales downward as expected. Low settings average 335 FPS, Medium averages 305 FPS (minimum 259 FPS, maximum 351 FPS), High averages 270 FPS, and Ultra averages 219 FPS. The 34.6% reduction from Low to Ultra at 1440p is nearly identical to the 1080p scaling, indicating that the GPU is still the limiting factor at this resolution. The minimum frame rate of 259 FPS at Medium settings ensures that even the most demanding scenes remain above 240 FPS.

At 3840x2160, the RTX 4070 begins to show its limits. Low settings average 190 FPS, Medium averages 173 FPS (minimum 147 FPS, maximum 199 FPS), High averages 153 FPS, and Ultra averages 124 FPS. The 34.7% reduction from Low to Ultra at 4K is consistent with the other resolutions, but the absolute frame rates are lower, with Ultra dipping below 130 FPS. The minimum FPS of 147 FPS at Medium settings is still respectable, but it falls below the 144Hz threshold, meaning players with 144Hz 4K monitors may experience occasional dips.

The progression across resolutions shows a consistent pattern: Medium settings provide the best balance of performance and stability, with the minimum FPS data revealing that frame pacing remains tight even at 4K. The High preset offers a middle ground, while Ultra is only recommended for players who prioritize visual fidelity over frame rate stability.

How This Combo Ranks

The AMD Ryzen 7 9700F and NVIDIA GeForce RTX 4070 combination ranks 666th out of 3010 tested combos in Roblox, placing it in the top 22.1% of all configurations. This ranking is notable given that Roblox is a lightweight title that does not heavily stress modern hardware, meaning the score reflects the raw capability of the components rather than their optimization for this specific game.

To contextualize this ranking, consider that the RTX 4070's average benchmark score of 37648 places it in the 81st percentile among all GPUs, while the Ryzen 7 9700F's average score of 69996 places it in the 94th percentile among all CPUs. The GPU's nearest rivals include the NVIDIA Tesla P4 (0.1% slower), AMD Radeon RX Vega 56 (0.4% slower), NVIDIA GeForce RTX 4080 Mobile (1.3% faster), and AMD Radeon PRO W6400 (1.3% slower). The CPU's nearest rivals are the AMD Ryzen 9 7940HX (0.2% faster), Intel Core i7-14700KF (0.2% slower), AMD Ryzen 9 7950X (0.7% faster), and Intel Core i7-14700K (0.9% faster).

The 666th ranking out of 3010 suggests that while this combo is not at the very top of the performance hierarchy, it sits comfortably above the median. The high CPU percentile (94%) compared to the GPU percentile (81%) indicates that the processor has more headroom relative to the rest of the market, which is advantageous for Roblox given its CPU-dependent nature. The RTX 4070's 12 GB of GDDR6X memory and 192-bit bus width are more than sufficient for this game, but the GPU's raw compute power (29.15 TFLOPS FP32) is what drives the frame rates at higher resolutions.

The ranking also reflects the age of the components—the RTX 4070 was released in April 2023 and is now end-of-life, while the Ryzen 7 9700F launched in September 2025. This generational mix means the CPU is newer and more capable relative to its peers, but the GPU is a generation behind the current GeForce 50-series, which likely explains why the combo does not rank higher.

CPU Role

The AMD Ryzen 7 9700F plays a critical role in this configuration, even though Roblox is not traditionally considered a CPU-intensive title. The processor features 8 cores and 16 threads based on the Zen 5 architecture (Granite Ridge), with a base clock of 3.80 GHz and a boost clock of 5.50 GHz. This 44.7% boost headroom is substantial, allowing the CPU to dynamically scale its performance based on workload demands.

In the context of Roblox, the CPU's single-thread performance is particularly important, as the game's physics and scripting typically rely on fewer threads. The Ryzen 7 9700F's PassMark single-thread score of 4691 places it in a strong position, and the data shows that at 1080p Low, where the GPU is not a limiting factor, the system still achieves 503 FPS—a figure that would be impossible if the CPU were causing a bottleneck. The high minimum frame rates at Medium settings (389 FPS at 1080p, 259 FPS at 1440p, 147 FPS at 4K) further confirm that the CPU is delivering consistent performance without stuttering.

The CPU's 32 MB of shared L3 cache and 1 MB L2 cache per core help reduce memory latency, which is crucial for maintaining stable frame pacing in a game where world data is frequently accessed. The dual-channel DDR5 memory support with 89.6 GB/s bandwidth ensures that the CPU can feed data to the GPU without starvation. While the RTX 4070's 504.2 GB/s bandwidth is significantly higher, the CPU's memory bandwidth is sufficient for Roblox's demands, as evidenced by the lack of dramatic frame rate drops at lower resolutions.

The 65W TDP of the Ryzen 7 9700F is remarkably low for a desktop processor with 8 cores, which means the CPU generates less heat and can sustain boost clocks longer without thermal throttling. This is evident in the consistent frame rates across all tested settings, even at 4K where the CPU must work harder to keep up with the GPU's output. The CPU's PassMark multithread score of 36470 and its 94th percentile ranking among all CPUs indicate that it has ample headroom for Roblox's threaded workloads, making it a well-suited match for the RTX 4070 in this game.