Roblox

Roblox is a notoriously CPU-light sandbox title, but the pairing of the AMD Ryzen 5 5600G and the NVIDIA GeForce RTX 4070 SUPER produces a fascinating bottleneck shift. The measured FPS data shows a system that is overwhelmingly GPU-bound at higher resolutions, yet reveals the CPU's surprising headroom at 1080p, making this a versatile combo for high-refresh-rate monitors. This analysis breaks down the resolution scaling, component roles, and optimal settings based on the measured results.

Resolution Scaling

The data shows a classic GPU-bound scaling curve. At 1080p with Low settings, the system pushes an average of 560 FPS. Moving to 1440p drops that to 374 FPS, and at 4K it falls further to 211 FPS. This represents a 62.5% reduction in frame rate from 1080p Low to 4K Low, which is a massive drop that points directly at the GPU's rendering load. The RTX 4070 SUPER, with its 12 GB of GDDR6X memory and 504.2 GB/s bandwidth, is being tasked harder at each step up in pixel count.

The pattern repeats across all settings. For High settings, the drop from 1080p (450 FPS) to 1440p (300 FPS) is a 33.3% reduction, and then to 4K (170 FPS) is another 43.3% reduction from the 1440p figure. This non-linear scaling is typical: the gap between 1080p and 1440p is smaller in raw FPS terms, but the relative percentage loss grows as the GPU approaches its limits. The Ultra preset shows the same trend, falling from 365 FPS at 1080p to 244 FPS at 1440p and finally to 138 FPS at 4K.

What this scaling tells us is that at 1080p, the system has enormous headroom. The 560 FPS Low result is so high that it suggests the game's engine is hitting a CPU-side or engine-level limit, not a GPU limit. The Ryzen 5 5600G, with its 6 cores and 12 threads, is likely the constraining factor at this resolution. As the resolution climbs, the GPU takes over as the primary limiter, which is why the frame rate drops so precipitously. For a player with a 144Hz monitor, 1440p High at 300 FPS is a comfortable overshoot, while 4K Ultra at 138 FPS is right at the edge of a 144Hz display's maximum refresh rate.

CPU Role

The AMD Ryzen 5 5600G is a Zen 3 (Cezanne) part with a base clock of 3.90 GHz and a boost clock of 4.40 GHz. It features 6 cores and 12 threads, with a 16 MB L3 cache and 64 KB of L1 and 512 KB of L2 per core. Its 65 W TDP and dual-channel DDR4 memory support with 51.2 GB/s bandwidth are standard for the platform. The processor's 3DMark single-thread score of 872 and Cinebench R23 single-core score of 1409 are modest, but Roblox is not a demanding multithreaded title.

The benchmark results indicate that the 5600G is more than adequate for this game. Its Passmark multithread score of 19717 and Cinebench R23 multicore of 10551 show solid overall performance, but the single-thread results are what matter most for Roblox's typical physics and scripting workloads. The processor's percentile rank of 74 among all CPUs, with an average benchmark score of 21088, places it in a competitive position. Its nearest rivals in synthetic benchmarks include the Intel Core i3-1220P (0.1% faster), Intel Core Ultra 7 256V (0.1% slower), AMD Ryzen 5 7530U (0.2% slower), and Intel Core Ultra 7 155U (0.4% slower) — all within a rounding error of the 5600G's average score.

The fact that the 5600G holds its own against these varied competitors in synthetic tests suggests that its real-world gaming performance is dictated more by clock speed and IPC than core count. At 1080p Low, the 560 FPS average is likely hitting a frame-rate cap or an engine limit, not a CPU bottleneck. The CPU's 4.40 GHz boost clock is sufficient to feed the RTX 4070 SUPER even at very high frame rates, but the data implies that the CPU's single-thread performance is the ceiling for the absolute maximum FPS. For 1440p and 4K, the CPU is entirely out of the picture, as the GPU becomes the bottleneck.

FAQ

Q: At 1080p Low, why is the average FPS capped at 560?

A: The measured data shows 560 FPS at 1920x1080 Low settings. This is likely a game engine frame-rate cap or a CPU-side limit, as the RTX 4070 SUPER is capable of far more. The Ryzen 5 5600G's single-thread performance, reflected in its 3DMark single-thread score of 872 and Cinebench R23 single-core of 1409, is the probable ceiling.

Q: Is this combo good for 4K gaming on Roblox?

A: Yes. At 3840x2160 with High settings, the average FPS is 170, and even at Ultra it remains 138 FPS. This is well above the 60 FPS standard for 4K displays, and the 12 GB of VRAM on the RTX 4070 SUPER is more than enough for the game's textures.

Q: How does the CPU compare to its direct rivals?

A: The Ryzen 5 5600G has an average benchmark score of 21088. Its nearest rivals are the Intel Core i3-1220P (21066, 0.1% faster), Intel Core Ultra 7 256V (21112, 0.1% slower), AMD Ryzen 5 7530U (21133, 0.2% slower), and Intel Core Ultra 7 155U (21174, 0.4% slower). The differences are negligible.

Q: What is the most demanding preset in the data?

A: The Ultra preset at 4K produces the lowest average FPS at 138. The Medium preset at 4K offers the only measured minimum and maximum FPS data points, with a minimum of 163 and a maximum of 221, averaging 192 FPS.

Q: Does the GPU's VRAM ever become a concern?

A: No. The RTX 4070 SUPER has 12 GB of GDDR6X memory with a 192-bit bus. Roblox is not a VRAM-heavy title, so this capacity is sufficient at all tested resolutions and settings.

Q: Is the CPU or GPU the bottleneck at 1440p?

A: The data suggests the GPU is the primary limiter at 1440p. The scaling from 1080p High (450 FPS) to 1440p High (300 FPS) is a 33.3% drop, which is consistent with a GPU workload increase. The CPU's multithread score of 19717 in Passmark is not the constraining factor here.

Measured FPS Breakdown

The measured results provide a clear picture of performance across three resolutions and four quality presets.

At 1920x1080, the system is exceptionally fast. Low settings yield an average of 560 FPS, Medium produces 509 FPS with a minimum of 433 and maximum of 586, High reaches 450 FPS, and Ultra drops to 365 FPS. The gap between Low and Ultra is 195 FPS, a 34.8% reduction. This suggests that even at Ultra, the game is not fully taxing the GPU, as the frame rates remain far above typical monitor refresh rates.

Moving to 2560x1440, the frame rates remain high but show a clear step down. Low averages 374 FPS, Medium averages 340 FPS with a minimum of 289 and maximum of 391, High averages 300 FPS, and Ultra averages 244 FPS. The scaling from 1080p to 1440p is consistent: Low drops by 186 FPS, Medium by 169 FPS, High by 150 FPS, and Ultra by 121 FPS. This indicates that the GPU is handling the increased pixel count efficiently.

At 3840x2160, the system still delivers playable frame rates but the GPU is clearly working harder. Low averages 211 FPS, Medium averages 192 FPS with a minimum of 163 and maximum of 221, High averages 170 FPS, and Ultra averages 138 FPS. The minimum FPS of 163 at 4K Medium is noteworthy, as it shows the system maintains a high floor even under load. The difference between Low and Ultra at 4K is 73 FPS, a 34.6% reduction, mirroring the percentage drop seen at 1080p.

The data reveals that the Medium preset is the only one with recorded minimum and maximum FPS values, suggesting it is the most stable or representative of typical gameplay variance. At 1080p Medium, the minimum is 433 FPS, while at 4K Medium, the minimum is 163 FPS. This variance is expected as the GPU load increases.

GPU Role

The NVIDIA GeForce RTX 4070 SUPER is the dominant component in this pairing, and its role becomes more pronounced as resolution increases. The card features 12 GB of GDDR6X memory on a 192-bit bus, delivering 504.2 GB/s of bandwidth. Its clock speeds are a base of 1980 MHz and a boost of 2475 MHz, with the memory running at 1313 MHz (21 Gbps effective). The GPU's 7168 shading units, 224 TMUs, and 80 ROPs are backed by 56 RT cores and 224 tensor cores, enabling its 35.48 TFLOPS of FP32 compute.

In synthetic benchmarks, the RTX 4070 SUPER scores 29995 in Passmark G3D and 17108 in GPU Compute, with a percentile rank of 83 among all GPUs. Its average benchmark score is 43223, and its nearest rivals are all within 1%: the NVIDIA Quadro M6000 24 GB (43262, 0.1% faster), NVIDIA GeForce RTX 5050 Mobile (43268, 0.1% faster), NVIDIA Quadro M6000 (43301, 0.2% faster), and NVIDIA GeForce RTX 4090 Mobile (43667, 1% faster). This places the desktop 4070 SUPER in a performance tier that is competitive with high-end mobile parts and previous-generation professional cards.

The GPU's role in Roblox is clear from the resolution scaling. At 1080p, the 4070 SUPER is underutilized, as evidenced by the 560 FPS Low result. At 4K Ultra, the 138 FPS average shows the card is being pushed but still delivering excellent performance. The 12 GB VRAM is not a limiting factor, as Roblox's asset sizes are modest. The card's 220 W TDP and suggested 550 W PSU are reasonable for a system of this class, and its dual-slot design with a single 16-pin connector makes installation straightforward.

Settings Recommendations

Based on the measured FPS data, the optimal settings depend heavily on the target display resolution and refresh rate.

For 4K displays, the High preset is the sweet spot. It delivers an average of 170 FPS, which is above the 144 Hz refresh rate of most high-end 4K monitors, and it offers a 32 FPS improvement over Ultra (138 FPS) with minimal visual penalty. The Medium preset at 192 FPS is also viable if you prefer a smoother experience, but High provides the best balance of visual quality and performance. Ultra at 138 FPS is only recommended for those with a 120 Hz or lower refresh rate display, as the frame rate is still playable but leaves no headroom for demanding scenes.

For 1440p, the Ultra preset at 244 FPS is the clear choice for high-refresh-rate gaming. This is well above the 240 Hz refresh rate of many competitive monitors, and the visual fidelity is worth the frame rate cost. If you have a 144 Hz monitor, even the Low preset at 374 FPS is overkill, so you can safely run Ultra for the best visuals. The High preset at 300 FPS is a good middle ground if you want to reduce GPU load and temperatures, but the data shows no reason to avoid Ultra at this resolution.

For 1080p, the system is so fast that any preset is viable. The Ultra preset at 365 FPS is the recommended choice for maximum visual quality, as it still exceeds the refresh rate of any mainstream gaming monitor. The Low preset at 560 FPS is only useful for players seeking the absolute highest frame rates for competitive play, but the difference between Low and Ultra is 195 FPS, which is unlikely to be perceptible on most displays. The Medium preset at 509 FPS offers a similar situation, with a minimum of 433 FPS ensuring no stutter.

The data indicates that the Medium preset is the most stable, as it is the only one with recorded minimum FPS values. At 4K Medium, the minimum of 163 FPS is only 29 FPS below the average, suggesting a consistent experience. At 1080p Medium, the minimum of 433 FPS is 76 FPS below the average, which is a larger variance but still imperceptible at such high frame rates. For players who prioritize frame-time consistency over raw average FPS, the Medium preset is a safe choice across all resolutions.